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Table Of Contents - Siemens SIPROTEC 7SS52 Operation Manual

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Chapter Index17

Data For Selection And Ordering18

Product Description21

Scope Of Functions22

Busbar Protection22

Circuit-Breaker Failure Protection23

Isolator Replica24

Trip Output/Reset25

Fault Recording25

Binary Inputs, Trip Outputs, Re-Assignable Alarm Relays And Led's25

Measuring And Testing Functions25

Operational And Fault Events26

Self-Monitoring26

Fitting Of The Modules29

Device Connections30

Technical Data37

General Device Data37

Standards And Guidelines39

Electrical Tests39

Service Conditions41

Inter-Change Ability41

Ancillary Functions43

Mode Of Operation45

Operation Of Complete Unit45

Application Functions47

Basic Principle48

Stabilization49

Separate Evaluation Of Half-Cycles51

Weighted Evaluation Of The Initial Values53

Response Threshold, Pick Up54

Summary Of The Measuring Method54

Special Treatment Of The Stabilizing Current For The Check Zone56

Isolator Mimic57

Processing Of The Isolator Running Status57

Preferential Treatment During Busbar Coupling Via Isolators57

Isolator Treatment During Auxiliary Voltage Supply Failure57

Treatment Of The Isolator States In The Event Of Wire Breakage58

Bypass Transfer-Busbar Operation58

Feeder And Bus Coupler On Different Busbars59

Feeder And Bus Coupler On The Same Busbar Section60

Status Of The Feeder Isolator61

Trip Repetition With Current Sensor63

Initiation By External Breaker Failure Protection68

Circuit-Breaker Failure Protection For Busbar Faults68

Overcurrent Controlled Trip Command70

Feeder-Selective Trip Release70

Bay Out Of Service74

Event Logging75

Operation And Indication75

Alarm Relays And Indications75

Harware Monitoring76

Monitoring Functions76

Software Monitoring77

Isolator Supervision79

Current-Controlled Reset Of The Trip Command80

Installation Instructions83

Unpacking And Repacking83

Connection Of The Bay Units In The Bus Coupler Bay84

Installation And Connection84

Version For Panel Surface Mounting (Fe, Ze)84

Subrack Version Of The Master Unit85

Bay Unit For Panel Or Cubicle Flush Mounting85

Cubicle Version Of The Master Unit85

Check Of The Nominal Data86

Matching Of The Control Voltage For The Binary Inputs86

Coding Of The Zps Modules89

Checking The Connections90

Configuring Examples91

Marshalling Possibilities94

Operating Instructions95

Setting The Master Unit95

Integrated Keypad/Display Panel95

Operating Pre-Requisites96

Communication Software Digsi96

Setting The Protection97

Initial Displays - Blocks 00 And 0198

Station Lay-Out Data98

Reading Out Of Design Data98

Changing Of Station Data98

Common Data Station Configuration - Block 54102

Configuration Of The Busbar - Block 49103

Settings For The Busbar Differential Protection106

Settings For The Pick-Up Characteristics - Block 61106

Settings For The Differential Current Supervision - Block 63108

Settings For The Supervisory Functions - Block 63111

Settings For Breaker Failure Protection Supervision111

Settings For Isolator Supervision112

Settings For Linearized Current Transformers112

Operational Control Features114

Binary Inputs114

Taking Bays Out Of Service - Block 64115

Test And Control Functions115

Marshalling Of Binary Outputs And Led-Indications119

Operational Event Recording - Block 71122

Fault Events - Block 72126

Operating The Bay Unit127

Keypad/Display127

Prerequisite And Language For Operation128

Device Settings130

Setting Via The Integrated Operation - Block 71130

Marshalling Of Binary Inputs, Binary Outputs And Led Indications131

Marshalling Of The Binary Inputs - Block 61131

Marshalling Of The Alarm Relay - Block 62134

Marshalling Of The Led Indications - Block 63135

Marshalling Of The Command Relays - Block 64137

Test And Control Function - Block 40139

Read Out Of Operational Measured Values - Block 57140

Testing And Comissioning142

Bus-Zone Specific Protection143

Comissioning With Primary Values153

Checking The Alarms And Trip Signals154

Switching The Protection Into Service154

Maintenance Recommendations155

Fault Analysis156

Analysis Of Operational Events156

Checking The Auxiliary Voltage Supply157

Replacement Of Fuses157

Check Of The Leds On The Modules159

Fault Indication And Analysis Of The Fault Buffer160

Status Events162

Analysis Of Failures In The Communication Ze-Fe164

Event Records - Block 71 To 76 And 78/Ze - Examples171

Available Operational And Fault Events173

Basis For Selection Of The Stabilization Factor K181

Connection Diagrams182

Connection Diagram Bay Unit182

Connection Diagram Master Unit183

Pre-Setting Of Binary Inputs And Outputs187

Table Of Direct Addresses - Master Unit (Overview)192

System And Configuration Data192

Commands/Tests198

Table Of Direct Addresses - Bay Unit (Overview)199

Reference Table For Configuration Parameters - Bay Unit200

Abbreviations202

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