Stage Description
Overview
[LoOverview, 1, en_US]
Figure 6-115
Logic of the Directional Intermittent Ground-Fault Protection
Blocking of the Stage with Measuring-Voltage Failure
The stage can be blocked if a measuring-voltage failure occurs. In the event of blocking, the picked up stage
will be reset. The following blocking options are available for the stage:
•
From an internal source upon pickup of the Measuring-voltage failure detection function
•
From an external source via the binary input signal
>Open
of the function block Volt.-transf. c.
b., which links in the tripping of the voltage-transformer circuit breaker
The Blk. by meas.-volt. failure parameter can be set so that the measuring-voltage failure detection
blocks the stage or does not block it.
6.14.3
Protection and Automation Functions
6.14 Directional Intermittent Ground-Fault Protection
552 SIPROTEC 5, Overcurrent Protection, Manual
C53000-G5040-C017-8, Edition 07.2017
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