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2.27
Breaker Control
A control command function is integrated in the SIPROTEC 4 7SC80 device to coordinate the switching opera-
tions in the substation.
Control commands can originate from four command sources:
•
Operation using the Web Monitor
•
Operation using DIGSI
•
Remote control via a substation control system (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 available binary inputs and outputs. Interlocking checks ensure high security
against maloperation, and a multitude of switchgear types and operating modes are available.
Control Device
2.27.1
Switchgear can also be controlled via the Web Monitor or via a connection to the substation control system.
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
2.27.1.1
Description
Operation via the Optional Operation Panel of the Web Monitor
The Web Monitor features two keys below the LED displays for the control.
Password and security prompts prevent unintended switching operations. The entries are confirmed using
ENTER.
Cancellation is possible at any time before the control command is issued or during switch selection via the
ESC key.
Command end, feedback, or any violation of the interlocking conditions are indicated.
For further information on the device operation, please refer to Section
Operation Using DIGSI
When using DIGSI, switchgear can be controlled via the USB interface. The procedure for that is described in
the SIPROTEC 4 System Description (Control of Switchgear).
Operation Using an Interface
Switchgear can also be controlled using a connection to the substation control system. For that, the required
periphery must exist in the device and in the substation. Furthermore, certain settings for the interface need
to be made in the device (see SIPROTEC 4 System Description).
SIPROTEC Compact, 7SC80, Manual
E50417-G1140-C486-A8, Edition 07.2017
2.27 Breaker Control
2.28 Notes on Device
Operation.
Functions
383
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