The hardware manual describes the hardware building blocks and device combinations of the Reyrolle 7SR54 device family. • Operating manual The operating manual describes the basic principles and procedures for operating and installing the devices of the Reyrolle 7SR54 range. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 4
The Reyrolle 7SR54 catalog describes the system features and the devices of Reyrolle 7SR54. • Selection guide for Reyrolle and SIPROTEC The selection guide offers an overview of the device series of the Siemens protection devices, and a device selection table. Indication of Conformity This product is CE-compliant to relevant EU directives.
Page 5
• The equipment must be grounded at the grounding terminal before any connections are made. • All circuit components connected to the power supply may be subject to dangerous voltage. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 6
The limiting values stated in the document must not be exceeded. This must also be considered during testing and commissioning. • Terminals are exposed when the device element is removed from the case. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
License Conditions provide for it you can order the source code of the Open Source Software from your Siemens sales contact – against payment of the shipping and handling charges – for a period of at least 3 years after purchase of the product. We are liable for the product including the Open Source Software contained in it pursuant to the license conditions applicable to the product.
Current Transformer Circuits The secondary circuit of a live CT must not be open circuited. Non-observance of this precaution can ² result in injury to personnel or damage to equipment. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 20
• Complete galvanic and interference-free isolation of the internal processing circuits from the system measuring, control, and supply circuits through instrument transformers, binary inputs, binary outputs and DC/AC voltage converters. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 21
All device functions are processed in the device CPU, these include, for example: • Filtering and processing of the measurands • Continuous monitoring of the measurands • Monitoring of the pickup conditions for the individual protection functions Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 22
The IP address for all 7SR5 device front ports is 192.168.2.1. The USB drivers must be installed prior to connection. A RS485 port on the rear of the device provides remote communications using user selectable protocols. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 23
Additional interfaces on the rear of the device provide remote communications using user selectable proto- cols. • Redundant ethernet communication interfaces • Redundant and independent protocols to control centers possible (such as IEC 61850) [sc_7SR5_Size12_rear, 1, --_--] Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Basic Structure of the Device Functionality Introduction Analogue Inputs Function Groups and Function Elements Device Startup Real Time Clock Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
7SR5 device function groups and elements can be added or removed only by using the Reydisp Manager 2 (RM2) software configurator tool. FG and FE that have been included from the RM2 configurator can be enabled/disabled. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
The analogue input configuration for a 7SR5420 transformer device is summarized in Figure 2-2. [dw_7SR5_7SR5420DeviceCTVTInputConfiguration, 1, en_US] Figure 2-2 7SR5420 Device CT/VT Input Configuration The analogue input configuration for a 7SR5421 transformer device is summarized in Figure 2-3. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 28
2-2, Figure 2-3, Figure 2-4 Figure 2-5. The measuring inputs (current and voltage inputs) are parametrized in the Device Configuration > CT/VT settings menu, see 3.3 CT and VT Inputs Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Autoreclose functionality • User logic schemes Example – 7SR542 The 7SR542 transformer application templates are summarized in Figure 2-6 Figure 2-7. [dw_7SR5_7SR5420ApplicationTemplate, 1, en_US] Figure 2-6 Application Template for 7SR5420 Devices Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 30
2.3 Function Groups and Function Elements [dw_7SR5_7SR5421ApplicationTemplate, 1, en_US] Figure 2-7 Application Template for 7SR5421 Devices Example – 7SR543 The 7SR543 transformer application templates are summarized in Figure 2-8 Figure 2-9. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 31
Basic Structure of the Device Functionality 2.3 Function Groups and Function Elements [dw_7SR5_7SR5430ApplicationTemplate, 1, en_US] Figure 2-8 Application Templates for 7SR5430 Devices Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 32
Optimization of the CFT will provide a clear minimized device/user interface. All required function elements are selected from the Reydisp device Function Template. When a function is initially installed the default settings of that function are applied. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
LED green. NOTE The LCD contrast can be adjusted by pressing the Enter and Cancel pushbuttons together and then using the ▲ or ▼ keys to increase or decrease the contrast. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 34
Configured parameter is in the Binary Output matrix for mapping to a binary output, LED, and/or virtual signal. NOTE The IEC 61850 Not Configured alert will be displayed sequentially with any other configured alerts. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Failure to receive a periodic time synch from the master clock will result in a switch over to the backup clock (if configured). The period before switching over to the backup clock is the user setting Master Time Synch Lost Delay. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 36
The device supports 2 SNTP timer servers, the first, primary server remains the preferred server so that all devices, if possible, operate with the same master clock. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 37
The Ethernet interface uses the UTC time format and a parameter for configuring the applicable rules for the local time. Offset and daylight saving time are provided in Reydisp Manager. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 38
If a time zone for time synchronization is from SNTP the time zone of the time source from the serial protocol must be identical as the offset and daylight saving rules will not be applied by the device. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
When the required device parameter is located within the menu structure it’s setting can be edited or viewed as appropriate using the appropriate pushbuttons – see the Operating manual. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 41
Enter key, used to initiate and accept settings changes Cancel key, used to cancel settings changes and/or move up the menu structure by one level per press Menu navigation. Binary output reset from home screen (3 second delay) Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
A label is provided between the 2 columns of LEDs, this can be customized using the Relay LED Label Template utility. LED operation is configured in the Configuration > Binary Outputs > LED Config menu (see 3.5 Binary Outputs [dw_7SR5_LEDLabelTemplate, 1, en_US] Figure 3-2 Example LED Template Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 43
Function element 1 Function element n <Fnct group> Function element 1 Function element n Control <Fnct group> Function element 1 Function element n <Fnct group> Function element 1 Function element n Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 44
At any 1 time only 1 group of settings can be active – Device Config > Active Group setting, (see 3.2 Device Configuration Settings data is stored in non-volatile memory in the device. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
3.1.3 Instruments and meters can be accessed locally from the front USB port or remotely from the rear data comms ports using Reydisp. See the Engineering Guide for full details. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Parameter: System Frequency • Default Setting: 50 Hz This setting is selected to be equal to the power system rated frequency. NOTE Changing the parameter will cause the device to restart. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 47
This setting is used to adjust the timeout from 1 to 60 minutes and Off (backlight perma- nently on). NOTE The LCD display automatically switches off when no buttons are pressed for 60 minutes. Pressing any key will re-activate the display, (see 3.2 Device Configuration Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 48
When set to seconds the milliseconds will be reset to 0 and the time is adjusted to the nearest second. When set to minutes the milliseconds and seconds will be reset to 0 and the time is adjusted to the nearest minute. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 49
So forward VAr will then be reported as Imported Reactive Energy, and forward Watts will be reported as Exported Active Energy. See also Power Protec- tion (32) and Power Factor (55) function elements. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 50
Disabled DNP3 Enabled Enabled Enabled MODBUS Enabled Enabled Enabled Changing of settings Rear RS485 port (set as Remote) Enabled Disabled Enabled Rear RS485 port (set as Local) Disabled Enabled Enabled Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 51
When the Count Target is reached an output is raised, this output is available in the Binary Output > Output Matrix. Parameter: Unexpected Restart Blocking • Default Setting: Disabled Parameter: Unexpected Restart Count • Default Setting: 3 Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 52
The Relay Identifier is used in communication with Reydisp to identify the relay. Parameter: Circuit Identifier • Default Setting: <None> User defined text can be used to identify the circuit monitored by the 7SR5 device. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
The passwords protect against unauthenticated access. 3.2.5 Settings Menu Configuration > Device Config Parameter Range Default Setting System frequency 50 Hz/60 Hz 50 Hz Active group 1, 2, 3, 4 Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 54
Enabled Disabled General alarm alert Enabled Enabled Disabled Relay identifier <16 characters maximum> 7SR5 Circuit identifier <16 characters maximum> <None> Setting ID Not active Control ID Not active Reset passwords Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Parameter: CT1/2/3 Ratio Prim • Default setting: 1A The setting value is used (in conjunction with CT1/2/3 Ratio Sec setting) by the device instrumenta- tion e.g. to display primary current values. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 58
Parameter: CT4 Ratio Prim • Default setting: 1A The setting value is used (in conjunction with CT4 Ratio Sec setting) by the device instrumentation e.g. to display primary current values. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 59
Parameter: CT12 Ratio Prim • Default setting: 1A The setting value is used (in conjunction with CT12 Ratio Sec setting) by the device instrumentation e.g. to display primary current values. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 60
Parameter: VT1/2/3 Ratio Prim • Default setting: 132000 V The setting value is used (in conjunction with VT1/2/3 Ratio Sec setting) by the device instrumenta- tion e.g. to display primary voltage values. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 61
Parameter: VT4 Ratio Sec • Default setting: 110 V The setting value is used (in conjunction with VT1/2/3 Ratio Prim setting) by the device instrumen- tation e.g. to display primary voltage values. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 62
Parameter: VT4 Trim Magnitude • Default setting: 0 V The setting value is used (in conjunction with VT1/2/3 Ratio Prim setting) by the device instrumen- tation e.g. to display primary voltage values. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 63
The setting value is used (in conjunction with VT1/2/3 Ratio Prim setting) by the device instrumen- tation e.g. to display primary voltage values. [lo_7SR5_VTConnections, 1, en_US] Figure 3-7 Illustration of VT Configuration Settings and VT Connections (Typical) Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
110 V VT4 Ratio Sec 0 V to 20 V VT4 Trim Magnitude -45° to +45° 0° VT4 Trim Angle Phase Rotation 7SR543 devices only Devices with VT inputs only Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
The General Alarms menu allows the user to define the information displayed when a binary input is set as a General Alarm. Binary inputs correspond to the logical node CTRL BIGGIO in IEC 61850. Virtual inputs/outputs correspond to the logical node CTRL VGGIO in IEC 61850. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Where the application requires instantaneous operation the pickup delay can be set to 0. Parameter: Drop off Delay • Default Setting: 0 s Each binary input can be independently set to reset after the operate voltage is removed plus a time delay. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 69
Used to trigger the circuit‑breaker fail function. A binary input configured as CB Closed must also be energized to confirm CB failure, (see 6 Supervision Functions , section 50BF Circuit-Breaker Failure Protection – 3 Pole). Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 70
CB-n Wear • Default Setting: <None> The I t counter can be triggered from this input e.g. for a manually issued trip/open command, (see 7 Control Functions, section 52 Circuit-Breaker Control). Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 71
The device real time clock is set to the nearest second when the binary input is operated i.e. on pickup. Parameter: Reset Start Count • Default Setting: <None> 3.2 Device Configuration Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 72
Binary inputs with this setting are intended for use with external arc sensors, they are operated by the detection of an arc caused by a system short circuit fault, (see 5 Protection and Automation Functions section 50AFD Arc Flash Detection). Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
ALARM: 3 BIGGIO1.Ind* Information Binary I/P* Status BIGGIO1.Ind*.stVal Device Annunciation ON/TRUE: 1 OFF/FALSE: 0 * Values of 1 to max number of BI. IEC 61850 Value ON: 1 OFF: 0 Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 76
OK: 1 WARNING: 2 ALARM: 3 VGGIO1.Ind* Information Virtual* Status VGGIO1.Ind*.stVal Device Annunciation ON/TRUE: 1 OFF/FALSE: 0 * Values of 1 to 20. IEC 61850 Value ON: 1 OFF: 0 Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
The status of hand reset LEDs (non self-reset LEDs) is maintained by a back up storage capacitor in the event of an interruption to the auxiliary supply. The General Pickup menu is used to select the relay functions that provide a pickup output e.g. to initiate a separate pickup LED. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
The Trip Config menu identifies which output relays are used as CB trip outputs. Logic of the Function 3.5.3 [lo_7SR5_BinaryOutputConfiguration, 1, en_US] Figure 3-11 Binary Output Configuration [lo_7SR5_LEDConfiguration, 1, en_US] Figure 3-12 LED Configuration Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
The operate condition (counter value) may be present for an indefinite period after opera- tion of the output relay but continuous operation of the output relay is undesirable e.g. SCADA system interface. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 82
The General Pickup output can be mapped to operate any binary output, LED or virtual I/O. Typically this is used to indicate the initiating condition is above setting and can be used during commis- sioning or for system monitoring. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 83
Contact operates. This provides a logic signal from the trip signal that can be used to provide indication that a trip has occured. NOTE Where the Trip Triggered is not configured then the Trip Alert and Fault Records will not be triggered. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
47-n 49-n Trip 49-n Alarm 50-n 50G-n Wattmetric Po> 50GS-n 50N-n 50AFD Ph A 50AFD Ph B 50AFD Ph C 50GAFD AFD Zone n AFD Zone n Flash 50CL Active Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 85
50BF Delay n 50BF PhA 50BF PhB 50BF PhC 50BF EF 74TCS-n 74CCS-n CB I t Wear General Pickup Waveform Archiving Device Archiving New Fault Stored New Wave Stored Master Clock Lost Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 86
2 to 20 s, Δ 0.1 s 20 to 60 s, Δ 1 s Pickup Outputs BO 1 to BO n <none> Pulsed Outputs BO 1 to BO n <none> Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Trip Contacts BO 1 to BO n <none> Trip Triggered L1 to Ln, V1 to Vn <none> IEC 61850 Functional Information Mapping 3.5.6 Binary Output Relays BOGGIO1.Mod Information Reset Device BOGGIO1.Mod.stVal Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 88
Device Annunciation ON/TRUE: 1 OFF/FALSE: 0 * Values of 1 to max number of available BO in the device. IEC 61850 Value ON: 1 OFF: 0 LGGIO1.Mod Information Reset Device LGGIO1.Mod.stVal Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 89
ALARM: 3 LGGIO1.Ind* Information LED* Status LGGIO1.Ind*.stVal Device Annunciation ON/TRUE: 1 OFF/FALSE: 0 * Values of 1 to 28. IEC 61850 Value ON: 1 OFF: 0 PTRC1.Mod Information Device Ready PTRC1.Mod.stVal Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 91
The information in the previous table is dependent on device configuration. PTRC1.Str Information General picked up (Elements as configured in general pickup menu) PTRC1.Str.general Device Annunciation ON/TRUE: 1 OFF/FALSE: 0 IEC 61850 Value FALSE: 0 TRUE: 1 Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Default Setting: 24 hrs This setting defines the maximum time over which the demand values are measured. A new set of demand values are recorded after expiry of the Demand Window Time. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 99
Information Reset Device MinIMMXU*.Mod.stVal Device Annunciation ON/TRUE: 1 OFF/FALSE: 0 Irrelevant: x IEC 61850 Value ON: 1 BLOCKED: 2 TEST: 3 TEST/BLOCKED: 4 OFF: 5 MinIMMXU*.Health Information Device Healthy MinIMMXU*.Health.stVal Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 100
IEC 61850 Functional Information Mapping – (MeanVIMMXU*, MaxVIMMXU*, MinVIMMXU*) MeanVIMMXU*.Mod Information Reset Device MeanVIMMXU*.Mod.stVal Device Annunciation ON/TRUE: 1 OFF/FALSE: 0 Irrelevant: x IEC 61850 Value ON: 1 BLOCKED: 2 TEST: 3 TEST/BLOCKED: 4 OFF: 5 Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 101
Measured Value Value MeanVIMMXU*.A.phsC.units.SIunit MeanVIMMXU*.A.phsC.units.multiplier Information Value Ig (neut) MeanVIMMXU*.A.neut.InstcVal.mag.f Measured Value Value MeanVIMMXU*.A.neut.cVal.mag.f Measured Value Value MeanVIMMXU*.A.neut.units.SIunit MeanVIMMXU*.A.neut.units.multiplier MeanVIMMXU*.Hz Information Value Frequency MeanVIMMXU*.Hz.instmag.f Measured Value Value MeanVIMMXU*.Hz.mag.f Measured Value Value Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 102
Vc (Vc =) MeanVIMMXU*.PhV.phsC.InstcVal.mag.f Measured Value Value MeanVIMMXU*.PhV.phsC.cVal.mag.f Measured Value Value MeanVIMMXU*.PhV.phsC.units.SIunit MeanVIMMXU*.PhV.phsC.units.multiplier MeanVIMMXU*.PPV Information Value Va-b (Vab =) MeanVIMMXU*.PPV.phsAB.InstcVal.mag.f Measured Value Value MeanVIMMXU*.PPV.phsAB.cVal.mag.f Measured Value Value MeanVIMMXU*.PPV.phsAB.units.SIunit MeanVIMMXU*.PPV.phsAB.units.multiplier 0 Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 103
Reactive Power (Q =) MeanVIMMXU*.TotVAr.instmag.f Measured Value Value MeanVIMMXU*.TotVAr.mag.f Measured Value Value MeanVIMMXU*.TotVAr.units.SIunit MeanVIMMXU*.TotVAr.units.multiplier MeanVIMMXU*.TotW Information Value Active Power (P =) MeanVIMMXU*.TotW.instmag.f Measured Value Value MeanVIMMXU*.TotW.mag.f Measured Value Value MeanVIMMXU*.TotW.units.SIunit W (Watt) MeanVIMMXU*.TotW.units.multiplier Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 104
Information Value Ib (Ib =) MaxVIMMXU*.A.phsB.InstcVal.mag.f Measured Value Value MaxVIMMXU*.A.phsB.cVal.mag.f Measured Value Value MaxVIMMXU*.A.phsB.units.SIunit MaxVIMMXU*.A.phsB.units.multiplier Information Value Ic (Ic =) MaxVIMMXU*.A.phsC.InstcVal.mag.f Measured Value Value MaxVIMMXU*.A.phsC.cVal.mag.f Measured Value Value MaxVIMMXU*.A.phsC.units.SIunit MaxVIMMXU*.A.phsC.units.multiplier Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 105
Information Value Va (Va =) MaxVIMMXU*.PhV.phsA.InstcVal.mag.f Measured Value Value MaxVIMMXU*.PhV.phsA.cVal.mag.f Measured Value Value MaxVIMMXU*.PhV.phsA.units.SIunit MaxVIMMXU*.PhV.phsA.units.multiplier Information Value Vb (Vb =) MaxVIMMXU*.PhV.phsB.InstcVal.mag.f Measured Value Value MaxVIMMXU*.PhV.phsB.cVal.mag.f Measured Value Value MaxVIMMXU*.PhV.phsB.units.SIunit MaxVIMMXU*.PhV.phsB.units.multiplier Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 106
Total Power Factor MaxVIMMXU*.TotPF.instmag.f Measured Value Value (PF =) MaxVIMMXU*.TotPF.mag.f Measured Value Value MaxVIMMXU*.TotPF.units.SIunit None MaxVIMMXU*.TotPF.units.multiplier MaxVIMMXU*.TotVA Information Value Apparent Power (S MaxVIMMXU*.TotVA.instmag.f Measured Value Value MaxVIMMXU*.TotVA.mag.f Measured Value Value MaxVIMMXU*.TotVA.units.SIunit MaxVIMMXU*.TotVA.units.multiplier Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 108
Power Factor (PF =) MinVIMMXU*.PF.phsB.InstcVal.mag.f Measured Value Value MinVIMMXU*.PF.phsB.cVal.mag.f Measured Value Value MinVIMMXU*.PF.phsB.units.SIunit None MinVIMMXU*.PF.phsB.units.multiplier Information Value Power Factor (PF =) MinVIMMXU*.PF.phsC.InstcVal.mag.f Measured Value Value MinVIMMXU*.PF.phsC.cVal.mag.f Measured Value Value MinVIMMXU*.PF.phsC.units.SIunit None MinVIMMXU*.PF.phsC.units.multiplier Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 109
Vc-a (Vca =) MinVIMMXU*.PPV.phsCA.InstcVal.mag.f Measured Value Value MinVIMMXU*.PPV.phsCA.cVal.mag.f Measured Value Value MinVIMMXU*.PPV.phsCA.units.SIunit MinVIMMXU*.PPV.phsCA.units.multiplier MinVIMMXU*.TotPF Information Value Total Power Factor MinVIMMXU*.TotPF.instmag.f Measured Value Value (PF =) MinVIMMXU*.TotPF.mag.f Measured Value Value MinVIMMXU*.TotPF.units.SIunit None MinVIMMXU*.TotPF.units.multiplier Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 110
Information Reset Device MMTR*.Mod.stVal Device Annunciation ON/TRUE: 1 OFF/FALSE: 0 Irrelevant: x IEC 61850 Value ON: 1 BLOCKED: 2 TEST: 3 TEST/BLOCKED: 4 OFF: 5 MMTR*.Health Information Device Healthy MMTR*.Health.stVal Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 111
Dependant on the Active Exp Energy Unit setting. The unit of energy is calculated by combining the multiplier and the pulsQty. By default this is 10 ⋅ 10 = 10,000 or 10 kVArh. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
The duration of each stored record is 1 s, 2 s, 5 s or 10 s. If records are expected in rapid succession, such as with short deadtime autoreclose, this setting should be selected to suit. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 113
IEC 61850 Functional Information Mapping RDRE1.Mod Information Device Ready RDRE1.Mod.stVal Device Annunciation ON/TRUE: 1 OFF/FALSE: 0 Irrelevant: x IEC 61850 Value ON: 1 BLOCKED: 2 TEST: 3 TEST/BLOCKED: 4 OFF: 5 Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Fault records are stored in a rolling buffer. When the buffer is full the oldest faults are overwritten. The functionality is configured in the Configuration > Data Storage > Fault Storage menu. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 115
IEC 61850 Functional Information Mapping – Last Trip Current & Voltage (VI_RFLT1) VI_RFLT1.Mod Information Reset Device VI_RFLT1.Mod.stVal Device Annunciation ON/TRUE: 1 OFF/FALSE: 0 Irrelevant: x IEC 61850 Value OK: 1 WARNING: 2 ALARM: 3 VI_RFLT.Health Information Device Healthy VI_RFLT1.Health.stVal Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 116
Measured Value Value VI_RFLT1.A.phsC.units.SIunit VI_RFLT1.A.phsC.units.multiplier Information Value Ineut (Ig =) VI_RFLT1.A.neut.cVal.mag.f Measured Value Value VI_RFLT1.A.neut.units.SIunit VI_RFLT1.A.neut.units.multiplier IEC 61850 Functional Information Mapping – Last Trip Current (I_RFLT) I_RFLT.Mod Information Reset Device Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
The energy is displayed and reported as a count value x the Energy Storage > Active/Reactive Exp/Imp Energy Unit parameter. The measured power is continuously integrated (over a 1-second window) to produce 4 energy quantities: Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 118
The direction of energy transfer is described in section 3.2 Device Configuration NOTE Changing this parameter from the fascia will cause the device to restart to allow IEC 61850 to update. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Event Log Settings Parameter: Event Storage > Clear Events • Default Setting: This is used to delete all stored event records. The faults can also be deleted from a communication command. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 120
Device Functionality 3.6 Data Storage Configuration > Data Storage > Event Storage Parameter Range Default Setting Clear events Yes, no Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
This setting is used to set the address of the master where the DNP3 unsolicited events are to be sent. Parameter: DNP3 Application Timeout • Default Setting: 10 This setting is used to configure the response time of the DNP3 application layer confirmation. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Manager to switch the IEC 61850 server of the device to the Edition 1 mode. The IEC 61850 server then oper- ates together with Edition 1 clients and exchanges GOOSE messages with Edition 1 devices. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 124
One exception to this is operation in a network with a DHCP server. Parameter: Subnet Mask • Default Setting: 255.255.255.0 This mask must be set according to the addressing scheme of the network. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 125
• Default Setting: Line The interfaces on the devices can be used in different operating modes. A distinction is drawn between the operating modes Line and Switch. [sc_7SR5_EthernetParametersOperatingMode, 1, --_--] Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 126
Rapid spanning tree protocol Legacy Siemens redundancy protocol. Parallel redundancy protocol High-availability seamless redundancy For detailed information on the parameterization of the Advanced setting please refer to the Communica- tions manual. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 129
(i.e. counter value = 1) and not for subsequent counter operations. Multi Shot: The counter will reset after the reset time delay. The En Counter Reset Time is started each time the counter is incremented. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
7SR54 Function Templates Introduction Function Groups and Function Elements Function Configuration Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
7 Control Functions). From the device fascia the protection, supervision and control function groups are enabled and disabled in the Settings > Functions > Function Config menu, (see 4.3 Function Configuration Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Autoreclose functionality • User logic schemes Example – 7SR542 The 7SR542 transformer application templates are summarized in Figure 4-1 Figure 4-2. [dw_7SR5_7SR5420ApplicationTemplate, 1, en_US] Figure 4-1 Application Template for 7SR5420 Devices Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 136
4.2 Function Groups and Function Elements [dw_7SR5_7SR5421ApplicationTemplate, 1, en_US] Figure 4-2 Application Template for 7SR5421 Devices Example – 7SR543 The 7SR543 transformer application templates are summarized in Figure 4-3 Figure 4-4. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 137
7SR54 Function Templates 4.2 Function Groups and Function Elements [dw_7SR5_7SR5430ApplicationTemplate, 1, en_US] Figure 4-3 Application Templates for 7SR5430 Devices Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 138
7SR54 Function Templates 4.2 Function Groups and Function Elements [dw_7SR5_7SR5431ApplicationTemplate, 1, en_US] Figure 4-4 Application Templates for 7SR5431 Devices Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
The complete serial protocol information list containing the DNP3, IEC 60870-5-103, and Modbus RTU data information for the configured device can be generated using the Export Report feature in the Reydisp Manager tool, Serial Comms & Events. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
• Measured impedance (Z) is within angular limits. [lo_7SR5_21logicdiagram3phase, 1, en_US] Figure 5-1 Logic Diagram: 21LB Load Blinder 3-Phase A single phase overcurrent blocking signal can only be issued when: Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Reverse load current flow will have a relatively high power factor in comparison to reverse fault current flow. This setting defines the positive pickup angle for the 21LB function i.e. the function will not operate for angular measurement above this setting. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 146
Settings Example The 3-phase load blinders (21LB-3P) are required to block the directional overcurrent relay so that tripping is inhibited for reverse load current with a power factor greater than 0.94. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 147
1.5 times the nominal load current value (to allow for temporary reverse overload conditions) the setting is calculated from: Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
The complete serial protocol information list containing the DNP3, IEC 60870-5-103, and Modbus RTU data information for the configured device can be generated using the Export Report feature in the Reydisp Manager 2 tool, Serial Comms & Events. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Thus, the ratio is derived from: [fo_function24methodofmeasurement, 1, en_US] Where: V = Measured voltage (maximum phase-to-phase voltage) = Adjusted rated voltage of the protected object rated, obj. f = Measured frequency = Rated frequency rated Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
The recommended setting is the feasible upper limit selected to avoid output chattering for marginal measured values. Parameter: 24DT Delay • Default setting: 60 s The time delay is set below the over-fluxing withstand capability of the protected plant at the operate setting. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 153
100 % value is exceeded, tripping is initiated. If the V/f value is changed, the associated time from the characteristic curve is added as a new 100 % value. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
100 to 1000 s Δ 1 s 1000 to 10000 s Δ 10 s 10000 to 20000 s Δ 100 s X2 Point 1 to 2 p.u., Δ 0.01 p.u. 1.16 p.u. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
The complete serial protocol information list containing the DNP3, IEC 60870-5-103, and Modbus RTU data information for the configured device can be generated using the Export Report feature in the Reydisp Manager 2 tool, Serial Comms & Events. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
A definite time delayed operate characteristic is used. Settings are provided for operate (pickup) threshold voltage, reset voltage level (hysteresis/drop-off) and time delay. • Outputs are provided for pickup and operation. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Description Ph‑Ph Where required to monitor the load under voltage conditions the phase to phase value is appropriate. Ph‑N This setting may be considered where single phase loads are connected. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 160
It is recommended that this setting is used unless the element is being applied as dead line or loss of supply detection. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 161
The first stage should be set to operate on All phases. The second stage must operate for under- voltage on Any phase. Element Setting Values 27 Common Input Selection Ph-Ph 27 Common UV Guard Setting 27-1 Element Enabled 27-1 Setting 99 V 27-1 Hysteresis 27-1 Delay Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
20 to 100 s Δ 0.1 s 100 to 1000 s Δ 1 s 1000 to 10000 s Δ 10 s 10000 to 14400 s Δ 100 s VTS Inhibit UV Guard Inhibit Pickup Option Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
The complete serial protocol information list containing the DNP3, IEC 60870-5-103, and Modbus RTU data information for the configured device can be generated using the Export Report feature in the Reydisp Manager 2 tool, Serial Comms & Events. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
A definite time delayed operate characteristic is used. Settings are provided for operate (pickup) threshold voltage, reset voltage level (hysteresis/drop-off) and time delay. • Outputs are provided for pickup and operation. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
This setting is used to allow the element to be switched on and off if it is not required. A separate setting is provided for each element. These settings can be used to select the number of elements required. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 167
Choose a suitable element: 27Vx-2 • Immunity to Loss of Supply Set UV guard to a low level that would not be expected unless the system is dead. Choose 5 V. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
20 to 100 s Δ 0.1 s 100 to 1000 s Δ 1 s 1000 to 10000 s Δ 10 s 10000 to 14400 s Δ 100 s UV Guard Inhibit Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
The complete serial protocol information list containing the DNP3, IEC 60870-5-103, and Modbus RTU data information for the configured device can be generated using the Export Report feature in the Reydisp Manager 2 tool, Serial Comms & Events. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Function operation is selected to Any or All phases. Blocking of the Stage When a binary input configured as Inhibit 37-n is operated, the picked up relevent function element will reset. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
This setting is used to allow the element to be switched on and off if it is not required. A separate setting is provided for each element. This setting can be used to select the number of elements required. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
20 to 100 s Δ 0.1 s 100 to 1000 s Δ 1 s 1000 to 10000 s Δ 10 s 10000 to 14400 s Δ 100 s UC Guard Inhibit Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
5.5.7 Information List Input/Output Matrix General User Logic Type DNP3 MODBUS Pickup 60870-5-1 Inhibit 37-n Inhibit 37-n Input Inhibit 37-n PhA Input Inhibit 37-n PhB Input Inhibit 37-n PhC Input Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 176
The complete serial protocol information list containing the DNP3, IEC 60870-5-103, and Modbus RTU data information for the configured device can be generated using the Export Report feature in the Reydisp Manager 2 tool, Serial Comms & Events. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
This setting is used to allow the element to be switched on and off if it is not required. A separate setting is provided for each element. This setting can be used to select the number of elements required. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
The complete serial protocol information list containing the DNP3, IEC 60870-5-103, and Modbus RTU data information for the configured device can be generated using the Export Report feature in the Reydisp Manager 2 tool, Serial Comms & Events. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Definite-time negative-sequence protection (46DT) • Inverse-time negative-sequence protection (46IT) Blocking of the Stage When a binary input configured as Inhibit 46DT-n or Inhibit 46IT-n is operated, the associated func- tion element will reset. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
This setting is used to allow the element to be switched on and off if it is not required. A separate setting is provided for each element. This setting can be used to select the number of elements required. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 182
1-phase short circuits can be used, which do not create a zero-sequence system in the current on the upper-voltage side (for example in vector group Dyn). The following example explains the achieved sensitivity. [sc_Function46SettingsExample, 1, --_--] Figure 5-9 1-Phase and 2-Phase Short Circuit on Transformer Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 183
Then a 2-phase short circuit can be assumed with more than 60 % of the rated object current. Set the standardization on the rated object current. To avoid over-function with overload, Siemens recommends a pickup value of approximately 65 %. Coordinate the time delays with the network grading for phase short circuits.
The complete serial protocol information list containing the DNP3, IEC 60870-5-103, and Modbus RTU data information for the configured device can be generated using the Export Report feature in the Reydisp Manager 2 tool, Serial Comms & Events. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
The broken conductor in a 3 phase system is detected by a high the ratio of the negative phase sequence (NPS) current level to positive phase sequence (PPS) current level Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
If the negative Parameter: 46BC-n Element • Default setting: Disabled This setting is used to allow the element to be switched on or off if it is not required. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
20 to 100 s Δ 0.1 s 100 to 1000 s Δ 1 s 1000 to 10000 s Δ 10 s 10000 to 14400 s Δ 100 s UC Guard Inhibit Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
The complete serial protocol information list containing the DNP3, IEC 60870-5-103, and Modbus RTU data information for the configured device can be generated using the Export Report feature in the Reydisp Manager 2 tool, Serial Comms & Events. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
When a function inhibit is applied from a binary input, logic signal, VTS, or undervoltage guard, an element that is picked up will be reset. Reset of the inhibit will allow restart of the operating delay. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Application and Setting Notes 5.9.4 Parameter: 47 Common > UV Guard Setting • Default setting: 5 V Voltage elements can be blocked if all phase voltages fall below the setting. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 195
47‑n element may operate on the erroneous voltage caused by the VT fuse failure. It is generally recommended that a setting of Yes is beneficial if the input selection is set to NPS or ZPS. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
20 to 100 s Δ 0.1 s, 100 to 1000 s Δ 1 s, 1000 to 10000 s Δ 10 s, 10000 to 14400 s Δ 100 s VTS Inhibit UV Guard Inhibit Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
The complete serial protocol information list containing the DNP3, IEC60870-5-103, and Modbus RTU data information for the configured device can be generated using the Export Report feature in the Reydisp Manager 2 tool, Serial Comms & Events. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
An alarm is provided for θ at or above a set % of capacity to indicate that a potential trip condition exists and that the system should be scrutinized for abnormalities. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
T = Operate time in minutes τ = Time constant (minutes) In = Log natural I = Measured current = Pre-load = Overload setting θ For the heating curve: [fo_7SR5_heatingCurve, 1, en_US] Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
The complete serial protocol information list containing the DNP3, IEC60870-5-103, and Modbus RTU data information for the configured device can be generated using the Export Report feature in the Reydisp Manager 2 tool, Serial Comms & Events. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Each element can be set to be inhibited during periods of low reverse load current flow, (see 5 Protection and Automation Functions , section 21LB Load Blinder). Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
This setting is used to allow the element to be switched on and off if it is not required. A separate setting is provided for each element. These setting can be used to select the number of elements required. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 207
• Default setting: 1 x I (1 ⋅ I rated This setting defines the operating current threshold of the element. This setting should be chosen to suit the individual application. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 208
Off unless this is required. NOTE Function elements are assigned as Delayed Trips in the 79 > 79PF menu. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Element Inhibited A50PTOC*.Mod.stVal Device Annunciation ON/TRUE: 1 OFF/FALSE: 0 Irrelevant: x IEC 61850 Value ON: 1 BLOCKED: 2 TEST: 3 TEST/BLOCKED: 4 OFF: 5 Applies only to devices with VT inputs Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 211
Fwd Direction Element Phase B picked up and Rev Direction Element Phase C picked up and Fwd Direction Element Phase C picked up and Rev Direction A50PTOC*.Str.dirGen- eral Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 212
Element Phase B picked up and Fwd Direction Element Phase B picked up and Rev Direction A50PTOC*.Str.dirPhsB Device Annunciation ON/TRUE: 1 OFF/FALSE: 0 IEC 61850 Value No-Dir: 0 FWD: 1 REV: 2 Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
The complete serial protocol information list containing the DNP3, IEC 60870-5-103, and Modbus RTU data information for the configured device can be generated using the Export Report feature in the Reydisp Manager 2 tool, Serial Comms & Events. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Trigger within the 79 function element menus. For autoreclose sequences that require operation of instan- taneous or time delayed protections to be inhibited this can be selected in settings menu. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Forward Select this setting if the element is to operate only in a forward direction. Reverse Select this setting if the element is to operate only in a reverse direction. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 217
Parameter Value Description The earth fault element is not affected by operation of the 81HBL2 element. The earth fault element is inhibited by when the 81HBL2 element is operated. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
20 to 100 s Δ 0.1 s 100 to 1000 s Δ 1 s 1000 to 10000 s Δ 10 s 10000 to 14400 s Δ 100 s VTS Action Inhibit Non-Dir Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
The complete serial protocol information list containing the DNP3, IEC 60870-5-103, and Modbus RTU data information for the configured device can be generated using the Export Report feature in the Reydisp Manager 2 tool, Serial Comms & Events. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Trigger within the 79 function element menus. For autoreclose sequences that require operation of instan- taneous or time delayed protections to be inhibited this can be selected in settings menu. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Voltage transformer failure can affect the directional decision and introduce an error. This setting selects if operation of the 60VTS Voltage Transformer Supervision element automatically affects the operation of the element. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 224
(such as in highly arid areas) or where the system uses high values of earthing resistor/reactance as any earth fault current that flows in the phase conductors will be limited. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
10000 to 14400 s Δ 100 s VTS Action Inhibit Non-Dir 81HB2 Inhibit 79 Delayed Inhibit IEC 61850 Functional Information Mapping 5.13.6 A50NPTOC*.Mod Information 50N Earth Fault Enabled (Function Config) Element Disabled Element Inhibited A50NPTOC*.Mod.stVal Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 226
Element picked up A50NPTOC*.Str.general Device Annunciation ON/TRUE: 1 OFF/FALSE: 0 IEC 61850 Value TRUE: 1 FALSE: 0 Information Element picked up and Fwd Direction Element picked up and Rev Direction A50NPTOC*.Str.dirGeneral Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
The complete serial protocol information list containing the DNP3, IEC 60870-5-103, and Modbus RTU data information for the configured device can be generated using the Export Report feature in the Reydisp Manager 2 tool, Serial Comms & Events. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Reduced fault current may flow where the driving fault voltage is reduced e.g. due to system impedances. The overcurrent setting can be automatically reduced by the 51V Multiplier when low voltage is measured at the VT inputs. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 229
Resetting the timer for each trip could result in damaging levels of current flowing for a prolonged period during a rapid sequence of trips/closes. Cold load trips use the same binary output(s) as the associated 51-n element. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Logic Diagram: 51 Time Delayed Overcurrent – Phase (Additional Settings Using VT Inputs) 5.14.4 Application and Setting Notes Parameter: 51V Element (Ph-Ph) • Default setting: Disabled This setting switches the element on or off dependent on the requirements of the application. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 232
The element is available for use and can be parameterized. Parameter: 51‑n Measurement • Default setting: RMS Selects whether fundamental frequency RMS or the true RMS value of the measured currents used. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 233
0.97, the setting and the reset characteristic will be applied. This factor is always applied for 51 elements including when the Char is selected as DTL. This setting should be set to suit the individual application. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 234
Figure 5-20 Minimum Operating Time of the Curve This is traditionally used with recloser systems only and otherwise is recommended to be left at the default setting of 0 s. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 235
During a VT failure the device may assess the direction incorrectly and the element may operate for faults in the non-operate direction or not operate for faults in the operate direction. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 236
The 51V Multiplier will reduce the 51-n pickup current setting for that phase as the multiplier will have a setting value < 1. 51-n Phase Current Control Voltage Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 237
To optimize the grading capability of the relay additional time multiplier, Follower DTL or Minimum Operate Time settings can be applied. [dw_7SR5_IECcurve withTm&followerDTL, 1, en_US] Figure 5-21 IEC NI Curve with Time Multiplier and Follower DTL Applied Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 238
The characteristic curve shape is selected to be the same type as the other relays on the same circuit or to grade with items of plant e.g. fuses or earthing resistors. The application of IDMTL characteristic is summarized in the following table: Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 239
[dw_7SR5_function51drawing, 1, en_US] Figure 5-23 Needs a title Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
1000 to 10000 s Δ 10 s 10000 to 14400 s Δ 100 s Functions > Protection > 51 > Gn 51-n Parameter Setting Options Settings Default Gn1 Element Enabled Disabled Disabled Measurement Fundamental Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 241
Setting Options Settings Default Gn1 Element Enabled Disabled Disabled Setting 0.05 to 2.5 ⋅ I , Δ 0.01 1 ⋅ I rated rated rated Applies only to devices with VT inputs. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 243
Rev Direction A50PTOC*.Str.dirGen- eral Device Annunciation ON/TRUE: 1 OFF/FALSE: 0 IEC 61850 Value No-Dir: 0 FWD: 1 REV: 2 FWD and REV: 3 Information Element Phase A picked up A51PTOC*.Str.phsA Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 244
Device Annunciation ON/TRUE: 1 OFF/FALSE: 0 IEC 61850 Value TRUE: 1 FALSE: 0 Information Element Phase C picked up and Fwd Direction Element Phase C picked up and Rev Direction Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
The complete serial protocol information list containing the DNP3, IEC 60870-5-103, and Modbus RTU data information for the configured device can be generated using the Export Report feature in the Reydisp Manager 2 tool, Serial Comms & Events. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Elements can be mapped to start 79 Automatic Recloser by selection of the element as a 79 PF Trigger within the 79 function element menus. For advanced autoreclose applications each element can be selected to be inhibited during delayed autoreclose shots of a multi-shot sequence. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Forward Select this setting if the element is to operate only in a forward direction Reverse Select this setting if the element is to operate only in a reverse direction Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 249
This is the time delay setting for the element when the Char is selected as DTL. This should be set to suit the individual application. This setting is not used if any other characteristic curve is selected. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 250
Use this setting for instantaneous reset of the element. When the current falls below setting the pickup will instantaneously reset completely and subsequent increase in current above setting will restart the operation delay from 0. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 251
This setting allows the delayed element to be inhibited during the delayed autoreclose shots and should be left at the default setting of Off unless this is required. Note that function elements are assigned as Delayed Trips in the 79 > 79PF menu. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
IEC-EI IEC-LTI ANSI-EI ANSI-MI ANSI-VI Time Mult (IEC/ANSI) 0.01 to 1.6, Δ 0.01 1.6 to 5, Δ 0.1 5 to 100, Δ 1 Applies only to devices with VT inputs. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
The complete serial protocol information list containing the DNP3, IEC 60870-5-103, and Modbus RTU data information for the configured device can be generated using the Export Report feature in the Reydisp Manager 2 tool, Serial Comms & Events. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Elements can be mapped to start 79 Automatic Recloser by selection of the element as a 79 EF Trigger within the 79 function element menus. For advanced autoreclose applications each element can be selected to be inhibited during delayed autoreclose shots of a multi-shot sequence. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Reydisp Manager for all elements for which the curve is applicable. The characteristic can also be set as DTL, see Delay, The characteristic should be set to suit the individual application. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 258
This is traditionally used with recloser systems only and otherwise is recommended to be left at the default setting of 0 s. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 259
The element is not inhibited by operation of the 81HBL2 element. The overcurrent element is inhibited by operation of the 81HBL2 element and automatically released when the 81HBL2 element resets. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 262
Element picked up A51NPTOC*.Str.general Device Annunciation ON/TRUE: 1 OFF/FALSE: 0 IEC 61850 Value TRUE: 1 FALSE: 0 Information Element picked up and Fwd Direction Element picked up and Rev Direction A51NPTOC*.Str.dirGeneral Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
The complete serial protocol information list containing the DNP3, IEC 60870-5-103, and Modbus RTU data information for the configured device can be generated using the Export Report feature in the Reydisp Manager2 tool, Serial Comms & Events. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
The inverse-time element can be selected to a definite-time characteristic to provide a total of 2 DTL voltage elements or a user definable inverse characteristic. This protection function operates on the fundamental frequency component evaluated from processing of the measured voltage samples. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
This setting defines the characteristic of the inverse curve. Any custom voltage curve that has been configured can be selected from the list. The characteristic can also be set as DTL so that 2 DTL elements are available (59NDT and 59NIT). Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
The complete serial protocol information list containing the DNP3, IEC 60870-5-103, and Modbus RTU data information for the configured device can be generated using the Export Report feature in the Reydisp Manager 2 tool, Serial Comms & Events. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
A definite time delayed operate characteristic is used. Settings are provided for operate (pickup) threshold voltage, reset voltage level (hysteresis/drop-off) and time delay. • Outputs are provided for pickup and operation. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
The complete serial protocol information list containing the DNP3, IEC 60870-5-103, and Modbus RTU data information for the configured device can be generated using the Export Report feature in the Reydisp Manager 2 tool, Serial Comms & Events. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Directional control of overcurrent elements (67) • Directional control of measured earth fault elements (67G) • Directional control of sensitive earth fault elements (67GS) • Directional control of calculated earth fault elements (67N) Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
For fault current of -45° (I lagging V by 45°) a setting of +45° is required for maximum sensitivity (due to quad- rature connection 90° - 45° = 45°). The reverse operate zone is the mirror image of the forward zone. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 278
The measured directional earth fault elements use the zero phase sequence (V ) voltage as the reference quantity and the zero phase sequence current (I ) phasor is the operate quantity. I (Operate) V (Reference) Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 279
The sensitive directional earth fault elements use the zero phase sequence (V ) voltage as the reference quantity and the zero phase sequence current (I ) phasor is the operate quantity. I (Operate) V (Reference) Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 280
The 67N directional element provides forward and reverse outputs that can be used to control each calculated earth fault element. The directional calculated earth fault elements use zero or negative phase sequence polarizing. Polarizing Quantity I (Operate) V (Reference) Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 281
The forward direction is defined as being away from the busbar and against the direction of normal load current flow. These forward looking IDMTL elements can have sensitive settings applied i.e. low current and time multiplier settings. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 282
Considering the D-G feeder fault shown in Figure 5-35: the current magnitude through breakers C and D will be similar and their associated relays will have similar prospective operate times. To ensure that only the Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 283
NPS polarizing is used. Once again the fault angle is completely predictable, though this is a little more complicated as the method of earthing must be considered. [dw_7SR5_function67SettingExample4, 1, en_US] Figure 5-36 Earth Fault Angles Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 284
3 methods are commonly employed to detect the wattmetric current – 7SR5 devices can be configured to provide each of these methods. [dw_7SR5_function67SettingExample6, 1, en_US] Figure 5-38 Earth Fault Current Direction In Compensated Netowrk Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 285
90°. On the faulted circuit the charging current creates no residual but the return of the charging current on the other circuits appears as a residual current which leads the residual voltage by 90°. The characteristic angle should be set to +90°. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
The complete serial protocol information list containing the DNP3, IEC 60870-5-103, and Modbus RTU data information for the configured device can be generated using the Export Report feature in the Reydisp Manager 2 tool, Serial Comms & Events. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
2 phase to neutral values. The frequency measurement will be continuous and any element that is picked up will be unaffected. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Each 81 element can be individually set to measure frequency from the 3 phase VT inputs or single phase VT input. Parameter: Operation • Default setting: Under Each 81 element can be individually set to be either an underfrequency or overfrequency element. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 290
IEC 61850 goose which would be connected to separate circuit‑breaker tripping circuits. This example considers device settings for the 81 elements but does not cover I/O mappings and tripping logic. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
1000 to 10000 s Δ 10 s 10000 to 14400 s Δ 100 s IEC 61850 Functional Information Mapping 5.20.6 A81PTUF*.Mod Information 81 Frequency Enabled (Function Config) Element Disabled Element Inhibited A81PTUF*.Mod.stVal Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 293
Information Element picked up A81PTUF*.Str.general Device Annunciation ON/TRUE: 1 OFF/FALSE: 0 IEC 61850 Value TRUE: 1 FALSE: 0 A81PTOF*.Mod Information 81 Frequency Enabled (Function Config) Element Disabled Element Inhibited A81PTOF*.Mod.stVal Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
OFF/FALSE: 0 IEC 61850 Value TRUE: 1 FALSE: 0 Information List 5.20.7 Input/Output Matrix General User Logic Type DNP3 MODBUS Pickup 60870-5-1 Inhibit 81-n Inhibit 81-n Input 81-n 81-n Operated Output Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 295
The complete serial protocol information list containing the DNP3, IEC 60870-5-103, and Modbus RTU data information for the configured device can be generated using the Export Report feature in the Reydisp Manager 2 tool, Serial Comms & Events. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
To ensure high speed relay operation the relay circuit operating voltage should be selected in accordance with the stability requirement above, also, the operate voltage should not exceed 0.5 ⋅ CT knee point voltage (Vk). Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 298
Non-linear resistors are connected in parallel with the relay circuit to limit the peak voltage developed across the high‑impedance components during internal faults to a safe level below 3 kV peak. Where a Metrosil is not connected in circuit the peak voltage can be calculated from: Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 299
For a failed Fint circuit‑breaker condition the back up protection clearance time must be considered, typically a 1 second rating is sufficient. [fo_function87GHApplication&SettingsFunction12, 1, en_US] Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 300
The current setting is dependent on a number of factors including the external component values relay settings and values of circuit components can be calculated in the following order: [dw_7SR5_function87GHApplicationAndSettingNotes2, 1, en_US] Figure 5-45 Procedure For Calculating High-Impedance Differential Protection Settings Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 301
1 to 600 Voltage knee point (V 350 V Magnetising current (Imag) @ V 50 mA CT secondary resistance (R 6 Ω CT lead loop resistance (R 0.15 Ω max. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 302
Metrosil Specification C Value = 120 V (i.e. > 100 V) so a C value of 1000 is chosen Short Time Power Rating Using the empirical formula [fo_function87GHApplication&SettingsFunction12, 1, en_US] Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 303
87GH-1 Setting = 0.06 A 87GH-1 Delay = 0 s Rstab = 2000 Ω, 40 W continuous (typical manufacturers data) Metrosil diameter = 75 mm Metrosil C value = 1000 Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
1000 to 10000 s Δ 10 s 10000 to 14400 s Δ 100 s IEC 61850 Functional Information Mapping 5.21.6 A87GHPTOC*.Mod Information 87GH Restricted EF Enabled (Function Config) Element Disabled Element Inhibited A87GHPTOC*.Mod.stVal Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
OFF/FALSE: 0 IEC 61850 Value TRUE: 1 FALSE: 0 Information List 5.21.7 Input/Output Matrix General User Logic Type DNP3 MODBUS Pickup 60870-5-1 Inhibit 87GH-n Inhibit 87GH-n Input 87GH-n 87GH-n Operated Output Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 306
The complete serial protocol information list containing the DNP3, IEC 60870-5-103, and Modbus RTU data information for the configured device can be generated using the Export Report feature in the Reydisp Manager 2 tool, Serial Comms & Events. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
The transformer connections which may introduce a phase change between the currents flowing into each winding of the transformer. • Magnetizing inrush current which flows in only 1 winding of the transformer when energized. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 308
87T-BD S2 protects the differential protection against incorrect operation during high-current external faults and transformer saturation. In this area, CT saturation can occur due to high short-circuit currents resulting in increased measurement of differential current. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 309
If a transformer is operated with a voltage that is too high, it can be modulated up into the non-linear part of the magnetization characteristic curve. An increased magnetizing current i.e. differential current results and this can lead to protection mal-operation. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 314
Parameter: Gn 87T Common > Wn 87T-HB Select • Default setting: Operate The differential current inrush blocking can be derived from the differential (operate) circuit (87T-HB2) or measured directly from the line CT inputs (81HB2). Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 315
This setting is recommended if REF is not used to protect the windings for earth faults on effectively earthed power systems. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 316
100 % safety margin. For example if the tap change range is +10 to -20 %, the overall range is 30 % so a 0.3x setting is chosen. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 317
A setting of 8 ⋅ I can be used as CT saturation is reduced as system X/R is rated usually relatively low and the peak level of magnetizing current does not usually exceed 16x rating. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 318
Calculate Required Relay Settings • 87T-BD function and 87T-HS function Example n – 2-Winding Transformer A 90 MVA with vector group Yd11 is selected, the neutral side is solidly grounded. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 320
(the 1.05 factor applied to the LV windings relates to the tap changer at mid-tap position). [fo_function87TExample4, 1, en_US] W1 ICT Multiplier = 400/394 = 1.02 [fo_function87TExample5, 1, en_US] Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 321
Gn W1 ICT Connection Yd11 Gn W2 ICT Multiplier 0.83 (1 A input) Gn W2 ICT Connection Ydy0 Gn W3 ICT Multiplier 0.45 (1 A input) Gn W3 ICT Connection Yd11 Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 322
CTs on the delta side of the transformer without corresponding current to flow in the line CTs on the star side of the transformer. If these zero sequence currents are allowed to flow through the differential elements they may cause undesired tripping. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 323
CT secondary connection of low impedance instead of in the differential relay operating coil. As the transformer vector group has already been considered on the star side a Ydy0 ICT is used on the delta side winding. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 324
CTs on the LV side without corresponding current to flow in the line CTs on the HV side. If these zero sequence currents are allowed to flow through the differential elements they may cause undesired tripping. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 325
Yd11, +30° simplifying installation. This approach is also applicable where the transformer is used to reverse the system phase sequence. NOTE ‘Non-standard’ secondary wiring connections are used. Relay instruments will indicate ’transformer’ quanti- ties rather than system quantities. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 326
Reversing the connections on only 1 side of the transformer will reverse the phase sequence of the system. For this arrangement W1 and W2 CT secondary wiring must be crossed over to replicate the crossovers on the transformer primary connections – see Figure 5-64. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 327
For the connections below it is recommended that the CT ratios are matched to the rated currents of the wind- ings and that Ydy0 vector correction settings are used. This is typical for auto-transformer with an unloaded tertiary winding. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 328
The differential protection does not monitor the tertiary winding, this must be separately protected. For the connections below it is recommended that the CT ratios are all identical and that Yy0 vector correction settings are used. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 329
5.22 87T Transformer Differential Protection [dw_7SR5_function87Tsettingsexample15, 1, en_US] Figure 5-67 Auto Transformer Bank with Current Transformer in the Neutral-Point Feed [dw_7SR5_function87Tsettingsexample16, 1, en_US] Figure 5-68 AC Connections for Auto-Transformer Overall and REF Protection Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 334
Measured Value Value A87BdPDIF1.DifAClc.phsB.units.SIUnit A87BdPDIF1.DifAClc.phsB.units.multiplier Information Value 87BD Ic Operate A87BdPDIF1.DifAClc.phsC.instCVal.mag.f Measured Value Value A87BdPDIF1.DifAClc.phsC.cVal.mag.f Measured Value Value A87BdPDIF1.DifAClc.phsC.units.SIUnit A87BdPDIF1.DifAClc.phsC.units.multiplier A87BdPDIF1.Op Information 87BD PhA Pickup 87BD PhB Pickup 87BD PhC Pickup Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
OFF/FALSE: 0 IEC 61850 Value TRUE: 1 FALSE: 0 Information List 5.22.7 Input/Output Matrix General User Logic Type DNP3 MODBUS Pickup 60870-5-1 Inhibit 87T-HS Inhibit 87T-HS Input 87T-HS 87T-HS Operated Output Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 337
The complete serial protocol information list containing the DNP3, IEC 60870-5-103, and Modbus RTU data information for the configured device can be generated using the Export Report feature in the Reydisp Manager 2 tool, Serial Comms & Events. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Any binary input can be mapped to this input, if it is energized when a trip initiation is received an output will be given immediately (the timers are by passed). Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
The earth fault current setting must be set below the minimum earth fault protection setting current. Parameter: Delay 1 • Default setting: 60 ms Settings Example, Page 342. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 342
The safety margin is extended by 1 cycle for the second CBF stage as this will usually involve a back-trip of a busbar tripping scheme. [dw_7SR5_function50BFSettingExample1, 1, en_US] Figure 6-2 Single Stage Circuit-Breaker Fail Timing [dw_7SR5_function50BFSettingExample2, 1, en_US] Figure 6-3 2 Stage Circuit-Breaker Fail Timing Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 345
The complete serial protocol information list containing the DNP3, IEC 60870-5-103, and Modbus RTU data information for the configured device can be generated using the Export Report feature in the Reydisp Manager 2 tool, Serial Comms & Events. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
The 60CTS-V function element operates when the measured negative phase sequence current (I ) is above setting and the measured negative phase sequence voltage (V ) is below setting. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Default setting: 10 s This is the delay applied to the 60CTS-V alarm output. This delay is used to prevent nuisance indications which would otherwise occur during switching operations and system faults. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
10 s 20 to 100 s Δ 0.1 s 100 to 1000 s Δ 1 s 1000 to 10000 s Δ 10 s 10000 to 14400 s Δ 100 s Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
The complete serial protocol information list containing the DNP3, IEC 60870-5-103, and Modbus RTU data information for the configured device can be generated using the Export Report feature in the Reydisp Manager 2 tool, Serial Comms & Events. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
• Ext Reset 60VTS – A binary or virtual input, or function key and a VT failure condition no longer exists • Inhibit 60VTS – A binary or virtual input Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
The element has user settings 60VTS V and 60VTS I. A VT is considered to have failed where the voltage exceeds 60VTS V while the current is below 60VTS I. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 353
VTS conditions met, the alarm output is raised and the VTS status is latched and will not reset for reset of current conditions. Reset of voltage conditions at any time will reset the VTS function element. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
The complete serial protocol information list containing the DNP3, IEC 60870-5-103, and Modbus RTU data information for the configured device can be generated using the Export Report feature in the Reydisp Manager 2 tool, Serial Comms & Events. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
CB close supply an output is given after a time delay. The use of 1 or 2 binary inputs mapped to the same close‑circuit supervision element (e.g. 74CCS-n) allows the user to realize several alternative monitoring schemes. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
A separate setting is provided for each element. These settings can be used to select the number of elements required e.g. for circuit‑breakers with phase segregated or 1 common close coil. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 357
Scheme 1 provides full trip supervision with the circuit‑breaker Open or Closed. Where a Hand Reset Trip Contact is used, measures must be taken to inhibit alarm indications after a CB trip. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
The complete serial protocol information list containing the DNP3, IEC 60870-5-103, and Modbus RTU data information for the configured device can be generated using the Export Report feature in the Reydisp Manager 2 tool, Serial Comms & Events. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
CB trip supply an output is given after a time delay. The use of 1 or 2 binary inputs mapped to the same trip‑circuit supervision element (e.g. 74TCS-n) allows the user to realize several alternative monitoring schemes. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
A separate setting is provided for each element. These settings can be used to select the number of elements required e.g. for circuit‑breakers with phase segregated or 1 common trip coil. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 362
Scheme 1 provides full trip supervision with the circuit‑breaker Open or Closed. Where a Hand Reset Trip Contact is used, measures must be taken to inhibit alarm indications after a CB trip. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
The complete serial protocol information list containing the DNP3, IEC 60870-5-103, and Modbus RTU data information for the configured device can be generated using the Export Report feature in the Reydisp Manager 2 tool, Serial Comms & Events. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
This setting is used to allow the element to be switched on and off if it is not required. A separate setting is provided for each element. These setting can be used to select the number of elements required. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 366
The ratio of the ‘square root of the sum of the squares of all second harmonics’ is compared to each funda- mental frequency component individually. Individual phase outputs are given when the ratio exceeds setting on the relevant phase. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
The complete serial protocol information list containing the DNP3, IEC 60870-5-103, and Modbus RTU data information for the configured device can be generated using the Export Report feature in the Reydisp Manager 2 tool, Serial Comms & Events. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
To support the control of additional user configured items the device provides a number of control elements that can be used in the user logic, mimic diagram and communication interface configuration. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 371
Control Mode menu. The Right arrow is used to enter the Control Mode menu. [sc_7SR5_ControlModeMenu, 1, --_--] Figure 7-1 Control Mode Menu The following items are available as preconfigured controllable items located in the Control Mode menu: • CB Open/Close • EF In/Out Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 372
To clear any latched LED’s or binary output relays the Right arrow must be held for 3 seconds when the Home Screen is visible. NOTE This can be carried out without entering a User ID. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
. The t value is the time between CB contacts separation when an arc is formed, Separa- tion Time, and the CB Clearance time. The I t value can also triggered and reset from a binary input or command. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Control Functions 7.2 52 Circuit-Breaker Control Logic of the Function 7.2.3 [lo_7SR5_52CBStatuslogicdiagram, 1, en_US] Figure 7-2 Logic Diagram: 52 Circuit-Breaker Control Status Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Logic Diagram: 52 Circuit-Breaker Control Counters [lo_7SR5_52I2tlogicdiagram, 1, en_US] Figure 7-4 Logic Diagram: 52 Circuit-Breaker Control I t Counters Application and Setting Notes 7.2.4 Parameter: CB-n > Close CB Pulse • Default setting: 2 s Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 384
• Default setting: 1 s The CB Open and CB Closed binary inputs are continually monitored to track the CB Status. The CB should only ever be in 3 states: Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 385
This allows for the internal delays caused by the relay, especially the delay before a binary input operates, to be subtracted from the measured CB trip time. This gives a more accurate measurement of the time it took for the CB to actually trip. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 386
The user set value for the clearance time is the time between issue of the trip command and interruption (clearance) of the fault current. This can be obtained from CB test and operational records. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
60870-5-1 Close CB Close CB Input Block CB Close Block CB Close Input CB Closed CB Closed Input Input CB Open CB Open Input Input Open CB Open CB Input Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 392
The complete serial protocol information list containing the DNP3, IEC 60870-5-103, and Modbus RTU data information for the configured device can be generated using the Export Report feature in the Reydisp Manager 2 tool, Serial Comms & Events. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
The energy storage meters can be reset from a binary input and have a user selectable setting for their meas- urement in the Configuration > Data Storage menu. See section 3.6 Data Storage Counter instruments can be rest by pressing the ▶ key when the instrument is displayed. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
⋅ S rated Q (3P) S Phase: A, B, C ⋅ S rated S (3P) Energy Active Energy Export X10kWh Active Energy Import Reactive Energy Export X10kWh Reactive Energy Import Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 396
Time hh:mm:ss Waveform Recs Fault Recs Event Recs Data Log Recs Setting Group General Alarms General Alarm n 16 x alpha-numeric characters. Configuration > Binary Inputs > General Alarms Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 397
Q 3P Demand: Max, Min, Mean S 3P Demand: Max, Min, Mean PF 3P Demand: Max, Min, Mean p.u. Binary Inputs BI1 to BIn Binary Output BO1 to BOn Virtual to V rated Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 398
Shows the number of telegrams received and transmitted. This counter is not reset and signals that the interface is working correctly. Ethernet Rx/TxErr= Meter 9 The telegram errors found are counted. Ethernet Rx/Tx10s= Meter 10 Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 399
Meter 20 Displayed as set in Reydisp Manager. Ethernet R/RS1=A/DR/RS2=R/F Meter 21 Interface status in the RSTP ring. The role and the status (R/Sx=) are displayed for both channels (ports). Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 400
Normal status In our example, port 1 shows the role alternate and the status designated, which means that this port does neither accept nor transmit telegrams from and to the device. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 401
We can conclude from the information displayed that this device is the logical separating point in the optical ring. Ethernet Internal data Meter 22 to 26 Quick Logic to V rated Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
The screen itself depends on the module type and is available only in English. NOTE Ethernet meters 15 to 26 are not available for Line, PRP and HSR. The Ethernet meters are only available in English. Instrument: Demand • 3.6 Data Storage Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Ensure that any essential services that share supplies are not interrupted. Disconnect communications ports or configure control systems to prepare for the tests. Carry out injection tests for each relay function as required as described in this document. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 405
The device is designed with no user serviceable parts and if a device reports a failure it can be returned to Siemens for investigation and repair. Contact and return details will be provided by the local Siemens office. Necessary precautions such as isolating the equipment, power supply and connections should be applied before investigating further, particularly with respect to safety earthing.
Protection Healthy signal in the Output Matrix, as this signal is perma- nently energized the mapped relay will be held energized, normally open contacts will be closed and normally closed contacts will be opened. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 407
Ensure that the correct instrument displays the applied signal within limits of the Technical Data. Applied Current…………………… Applied Voltage…………. Toler- Tolerance ance G/GS Secondary Primary Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Rotation does not correspond to the supplied signals and connections. If this parameter is incorrect this will invert the forward and reverse directions of directional protection as well as affecting any function that utilizes sequence component values. Voltage Current Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
If the values are not as expected, it may be due to the current transformer star point direction error or a polarity reversal at the voltage connection. The convention direction can be reversed by configuration of device settings but this setting should not be used to disguise a wiring error. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
The direction of the load flow is from the line towards the busbar. • The ground-current connection is incorrect. • The voltage connection is incorrect. • The device directional settings are incorrect. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 411
The primary test is used to provide a definitive evaluation of the correct polarity of the transformer connections for the determination of the earth fault direction. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 412
• Apply safety earths • Remove the test short circuit. • Remove the safety earths. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
9.6 Circuit‑Breaker Test Circuit‑Breaker Test NOTE Siemens recommends isolating the circuit‑breaker of the tested feeder at both ends before starting the tests. Line disconnector switches and busbar disconnector switches must be open so that the circuit‑breaker can be operated without risk.
Completion of Testing • All temporary measures taken for testing must be undone, such as special switch positions, interrupted trip commands, changes to setting values, or individually switched off protection functions. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
For 1-phase testing, the current values also depend on the treatment of the winding neutral point and the processing of the neutral point current. For a Y-Y configuration Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 416
3 phases to those of the first winding. Repeat for the third winding if applicable. Relay currents should be equal and in opposite phase direction. Line currents should be different by the angle appropriate to the Vector Group. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 417
Failure to comply with the safety notes, can result in death, severe injury or considerable material damage. Primary tests may be performed only on dead and earthed system parts! ² Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 418
Measurement of Residual Current on a Star-Delta Transformer – Without Neutral-Point Current Measurement [lo_7SR5_FunctionalTestsLogicDiagram4, 1, en_US] Figure 9-4 Residual Current Measurement on a Star-Delta Transformer [lo_7SR5_FunctionalTestsLogicDiagram5, 1, en_US] Figure 9-5 Residual-Current Measurement on a Star-Delta Transformer with Stabilizing Winding Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 419
Residual-Current Measurement on an Auto Transformer with Stabilizing Winding [lo_7SR5_FunctionalTestsLogicDiagram7, 1, en_US] Figure 9-7 Residual-Current Measurement on a Zigzag Winding [lo_7SR5_FunctionalTestsLogicDiagram8, 1, en_US] Figure 9-8 Residual-Current Measurement on a Delta Winding with Earthing Transformer Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
The REF spill current should be measured at the relay and should be an order of magnitude less than the relay setting. [lo_7SR5_FunctionalTestsLogicDiagram9, 1, en_US] Figure 9-9 Test with High-Current Test Equipment Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Angle -ve setting. The Load Blinder FWD signal will reset when the angle is above the setting plus 3° hysteresis and will pickup again when the angle is reduced to below the Angle -ve setting. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
If DTL is large apply 0.95 times setting, check for no operation, apply 1.05 times setting, check operation. Apply 0.9 times voltage, increase to 1.1 times setting and record operating time. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
DTL (sec) P.U. Current Tolerence Op. Time 0.5 ⋅ Tolerance Amps CT1(I CT2(I CT3(I Element Blocking The undercurrent elements can be blocked by Binary Input Inhibit. This functionality should be checked. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
NPS overcurrent can be tested using a normal 3P balanced source. 2 phase current connections should be reversed so that the applied balanced 3P current is negative phase sequence. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 427
Tm is defined by the operating characteristic. Curve Fully Operated to Reset with Zero Current Applied & Tm = 1 s ANSI-MI 4.85 ANSI-VI 21.6 ANSI-EI 29.1 Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Pickup LED reset if no other element is operated (this includes any undervoltage element which is not UV guarded). Phase Setting (Volts) Tolerence V Element Used Blocked Volts Notes for Test Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Voltage inputs may not be required for this function if the Phase Overcurrent functions are not directional but it may be advantageous to apply balanced 3 phase nominal rated voltage to the VT inputs during testing Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 431
The phase overcurrent elements can be blocked by Binary Input Inhibit, VT Supervision and Inrush Detector operation, as well as 79 Delayed Inhibit setting. 79 inst elements are often config- Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 432
(xTm), c) 2 times setting for a time to ensure element operation. Check that the second operation (c) is similar to the first (a) and in line with the expected operate time for the element at this current level. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Gradually increase current until Pickup LED operates. Apply 2 times setting current and record operating time. Apply 5 times setting current and record operating time. Compare to calculated values for operating times. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 434
The reset curve characteristic type and Tm is defined by the operating characteristic. Curve Fully Operated to Reset with Zero Current Applied & Tm = 1 (s) ANSI-MI 4.85 ANSI-VI 21.6 ANSI-EI 29.1 Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
If any of these elements are defined as directional the correct voltage phase direction will be required to produce an operation of those elements. Directional Polarity (67N) 10 Technical Data for testing details. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 436
1.69 ANSI-VI 7.03 1.31 ANSI-EI 9.52 Note that the operate time may be subject to the Minimum Op Time setting for the element and/or may have a follower DTL applied. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 437
(xTm), c) 2 times setting for a time to ensure element operation. Check that the second operation (c) is similar to the first (a) and in line with the expected operate time for the element at Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
1.69 ANSI-VI 7.03 1.31 ANSI-EI 9.52 Note that the operate time may be subject to the Minimum Op Time setting for the element and/or may have a Follower DTL applied. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 439
First test (c) Second Test (c) Element Blocking The 51CL overcurrent elements can be blocked by Binary Input Inhibit. This functionality should be checked. Element BI Inhibits 51CL Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
VTS condition. Increase 3P current until the element operates at its full setting, i.e. 51V settings are not used. Element VTS Action 51-1 51-2 51-3 51-4 Check correct indication, trip output, alarm contacts. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Characteristic Angle, but reducing the current phase angle to record the directional boundaries in the opposite (lag) direction. The recorded angle should be the angle at which the phase current leads the phase- Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 444
Note that non-directional Phase Overcurrent and non-direction Earth Fault elements may operate unless disabled. Repeat the test with phase A current as above but also with equal current in the B phase at 180° to that in the A phase. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
The high value of setting resistance R will often prevent secondary current injection when using a digital test set. It is normal practice in these cases to short out the series resistor to allow testing, the shorting link should be removed after testing. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 449
An alternative method is to apply 415 LVAC to one side of the transformer with a short circuit applied to the other side. The external Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 450
It should be noted that checking of Vector Grouping by phase alignment between W1 and W2 by 3 phase primary injection or on-load will highlight phase cross-over or connection polarity but will not show incorrect application of zero sequence filters. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
60CTS-I CT Supervision – Current Reference Apply 3 Phase balanced current to the relay, reduce the current in any 1 or 2 phases to a level below 60CTS-I setting. Measure the delay to operation. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
If the VTS can be started from a status input fed from an external source, this functionality should be tested. Ext_Trig 60VTS Operation Not Applicable Element Blocking The VT Supervision can be blocked by Binary Input Inhibit. This functionality should be checked. Element BI Inhibits 60VTS Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
0.25 ⋅ rated current 2nd harmonic if 1.0 ⋅ rated current fundamental is injected i.e. [fo_function81HB2FunctionalTests, 1, en_US] Current Expected Measured 1 ⋅ I rated Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
The function of the Quick Logic equations should be tested conjunctively with connected plant or by simulation to assess suitability and check for correct operation on an individual basis with tests specifically devised to suit the particular application. Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
± 1 % or ± 200 ms basic delay Repeatability ± 1 % Disengaging time < 250 ms Inverse Time Element (24IT) 10.3.3 Reference Parameter Value Reset setting 0 to 1000 s, Δ 1 s reset Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 460
Element basic operate time 500 ms ± 300 ms basic Operate time following delay ± 1 % or ± 2 s basic delay Repeatability ± 1 % Disengaging time < 250 ms Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
: 63 ms ± 10 ms basic Operate time following delay ± 1 % or ± 10 ms basic delay Repeatability ± 1 % or ± 10 ms Overshoot time Disengaging time < 80 ms Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
: 63 ms ± 10 ms basic Operate time following delay ± 1 % or ± 10 ms basic delay Repeatability ± 1 % or ± 10 ms Overshoot time Disengaging time < 80 ms Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Operate time following delay ± 1 % or ± 10 ms basic delay Repeatability ± 1 % or ± 10 ms Overshoot time < 40 ms Disengaging time < 60 ms Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Operate time following delay ± 1 % or ± 10 ms basic delay Repeatability ± 1 % or ± 10 ms Overshoot time < 40 ms Disengaging time < 60 ms Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
0.05 to 2.5 ⋅ I rated Applied current (for operate time) IDMTL 0 to 2 ⋅ I (switched) Delay setting 0 to 20 s delay Reset setting ANSI Decaying, 0 to 60 s reset Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 466
ANSI-EI: R = 29.1 ± 1 % or ± 20 ms reset reset Repeatability ± 1 % or ± 20 ms Overshoot time < 40 ms Disengaging time < 60 ms Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
40 ms ± 10 ms basic Operate time following delay ± 1 % or ± 20 ms basic delay Repeatability ± 1 % or ± 20 ms Disengaging time < 80 ms Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
1.5 ⋅ V : 80 ms ± 20 ms basic 10 ⋅ V : 55 ms ± 20 ms Operate time following delay ± 2 % or ± 20 ms basic delay Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 469
Technical Data 10.10 47 Sequence Overvoltage Protection Attribute Value Repeatability ± 1 % or ± 20 ms Overshoot time < 40 ms Disengaging time < 90 ms Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Operate time following delay ± 1 % or ± 10 ms basic delay Repeatability ± 1 % or ± 10 ms Overshoot time < 40 ms Disengaging time < 50 ms Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Pickup time, in the case of an external start < 5 ms Dropout time for unbalancing operating mode Approx. 2 ms Typical dropout time < 15 ms Dropout time via circuit‑breaker auxiliary contact < 5 ms criterion Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Auxiliary contacts are required for circuit‑breaker failure protection in cases where the current flow is absent or too low for tripping (for example with a transformer or a Buchholz protection). Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 476
> 80 Hz Tolerances Threshold values, dropout thresholds 2 % of the setting value or 1 % of the rated current Times 1 % of the setting value or 10 ms Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
± 1 % or ± 10 ms basic delay Repeatability ± 1 % or ± 10 ms Overshoot time < 40 ms Disengaging time < 50 ms Requires VT inputs Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
± 1 % or ± 10 ms basic delay Repeatability ± 1 % or ± 10 ms Overshoot time < 40 ms Disengaging time < 50 ms Requires VT inputs Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 480
IEC-LTI: R = 80 , ± 1 % or ± 20 ms reset reset Repeatability ± 1 % or ± 20 ms Overshoot time < 40 ms Disengaging time < 50 ms Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
: ± 4% or ± 1 % I rated Reset level ≥ 95 % I Repeatability ± 1 % Variation IEC -10 °C to +55 °C ≤ 5 % 60255-1 ± 5 % ≤ 5 % rated Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 482
IEC-LTI: R = 80 , ± 1 % or ± 20 ms reset reset Repeatability ± 1 % or ± 20 ms Overshoot time < 40 ms Disengaging time < 50 ms Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
: ± 4% or ± 1 % I rated Reset level ≥ 95 % I Repeatability ± 1 % Variation IEC -10 °C to +55 °C ≤ 5 % 60255-1 ± 5 % ≤ 5 % rated Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 484
IEC-LTI: R = 80 , ± 1 % or ± 20 ms reset reset Repeatability ± 1 % or ± 20 ms Overshoot time < 40 ms Disengaging time < 50 ms Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
± 1 % or ± 20 ms Overshoot time < 80 ms Disengaging time < 100 ms Inverse Time Element (59NIT) 10.20.3 Reference Parameter Value Time multiplier setting 0.1 to 140 Setting 1 to 100 V Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Page 487
= DTL ± 1 % or ± 40 ms reset Repeatability ± 1 % or ± 20 ms Overshoot time < 70 ms Disengaging time < 100 ms Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
: 63 ms ± 10 ms Operate time following delay ± 1 % or ± 10 ms basic delay Repeatability ± 1 % or ± 10 ms Overshoot time Disengaging time < 80 ms Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Element basic operate time 30 ms ± 20 ms basic Operate time following delay ± 1 % or ± 20 ms basic delay Repeatability ± 1 % or ± 20 ms Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
0 V to 2 ⋅ V 32 ms ± 10 ms basic operate time Operate time ± 1 % or ± 10 ms basic Repeatability ± 1 % or ± 10 ms Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Operate and Reset Time Attribute Value Operate time Typically 32 ms < 40 ms at characteristic angle + 50/51 element operate time Reset time Typically < 65 ms at characteristic angle reset Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Operate and Reset Time Attribute Value Operate time Typically 32 ms < 40 ms at characteristic angle + 50/51 element operate time Reset time Typically < 65 ms at characteristic angle reset Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Operate and Reset Time Attribute Value Operate time Typically 32 ms < 40 ms at characteristic angle + 50/51 element operate time Reset time Typically < 65 ms at characteristic angle reset Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Operate and Reset Time Attribute Value Operate time Typically 32 ms < 40 ms at characteristic angle + 50/51 element operate time Reset time Typically < 65 ms at characteristic angle reset Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Maximum < 150 ms Operate time following delay ± 1 % or ± 10 ms basic delay Repeatability ± 1 % or ± 10 ms Disengaging time < 100 ms Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Operate and Reset Time Attribute Value Operate time 0.5 ⋅ I : ?? ms ± ?? ms Repeatability ± 1 % or ± 10 ms Disengaging time < ?? ms Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Operate time following delay ± 1 % or ± 10 ms basic delay Repeatability ± 1 % or ± 10 ms Overshoot time < 40 ms Disengaging time < 50 ms Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Value Element basic operate time (Inrush action: 3 ⋅ I , < 30 ms basic Enabled) Operate time following delay + DTL, ± 1 % or ± 10 ms basic Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Operate Time Attribute Value Element basic operate time 1.5 ⋅ I : < 25 ms basic Operate time following delay ± 1 % or ± 10 ms basic delay Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...
Order No. 7SR5 Spares and Accessories F.O. data comms port inserts (7SR5) Terminal plug for RS485 wiring (3-way) Captive screws for fascia levers (7SR5) Hinged cover for fascia LED label (7SR5) Reyrolle 7SR5, Transformer Protection Device, Device Manual C53000-G7040-C015-1, Edition 11.2019...