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Functions
2.21 Command Processing
2.21
Command Processing
A control command function is integrated in the SIPROTEC 4 7SK80 to coordinate the operation of circuit
breakers and other equipment in the power system.
Control commands can originate from four command sources:
• Local control at the device's operator panel
• Operation using DIGSI
• Remote control via network control center or substation controller (e.g. SICAM)
• Automatic functions (e.g., via binary input)
Switchgear with single and multiple busbars are supported. The number of switchgear devices to be controlled
is limited only by the number of binary inputs and outputs. Interlocking checks ensure high security against ma-
loperation and a multitude of switchgear types and operating modes are available.
2.21.1
Control Device
Switchgear can also be controlled via the device's operator panel, DIGSI or a connection to the substation
control equipment.
Applications
• Switchgear with single and double busbars
Prerequisites
The number of switchgear devices to be controlled is limited by the
– existing binary inputs
– existing binary outputs.
2.21.1.1 Description
Operation Using the Device's Operator Panel
For controlling the device, there are two independent colored keys located below the graphic display. If you are
somewhere in the menu system outside the control submenu, you can return to the control mode via one of
these keys.
Then, select the switchgear to be operated with the help of the navigation keys. The switching direction is de-
termined by operating the I or O pushbutton. The selected switching direction is displayed flashing in the
bottom line of the following security prompt.
Password and security prompts prevent unintended switching operations. With E
Cancellation is possible at any time before the control command is issued or during switch selection via the E
key.
Command end, feedback or any violation of the interlocking conditions are indicated.
For further information on the device operation, please refer to Chapter 2.22.
286
NTER
the entries are confirmed.
SIPROTEC, 7SK80, Manual
E50417-G1140-C344-A5, Release date 11.2012
SC
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