Switching Devices
General Overview
The following switching devices can be found in the DIGSI 5 library in the Circuit-breaker and Switching-
devices function groups (see the following images).
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Figure 8-2 Selecting the Circuit-Breaker Switching Device Using the DIGSI Circuit-Breaker Function Group
Menu
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Figure 8-3 Selecting the Remaining Switching Devices Using the DIGSI Switching-Devices Menu
Switching Device Circuit Breaker
Structure of the Circuit-Breaker Switching Device
This chapter describes the control properties of the Circuit-breaker switching device.
The Circuit-breaker switching device contains the following function blocks that are needed for control:
•
Function block Circuit breaker
•
Function block Control
•
Function block Interlocking
This corresponds to the logical nodes XCBR, CSWI, and CILO in IEC 61850.
In the case of protection devices or combined protection and control devices, additional functions can be
contained in the circuit-breaker switching device, for example, synchrocheck, the automatic reclosing
(AREC), the trip logic or manual On function. However, these are not relevant for the control function. The
description of these functions is in the chapter Protection and Automatic Functions..
8.2
8.2.1
8.2.2
8.2.2.1
Control Functions
8.2 Switching Devices
SIPROTEC 5, Overcurrent Protection, Manual 1077
C53000-G5040-C017-8, Edition 07.2017
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