Stage Description
Description
Logic of the Stage
[lo_RPP stage, 2, en_US]
Figure 6-237
Logic Diagram of the Reverse-Power Protection Stage
Trip Command
To bridge brief power consumption during synchronization or during power swings caused by system inci-
dents, tripping (shutdown of the generator via reverse power) is delayed by a settable time (for example, 10
s).
A brief delay is enough when the quick-stop valve is closed. Couple the position of the quick-stop valve via the
binary input signal >Stop valve closed . When quick stop is tripped, the short Operate delay thus
becomes effective.
Blocking the Stage
In the event of blocking, the picked up stage will be reset. Blocking of the stage is possible externally or inter-
nally via the binary input signal >Block stage .
6.38.4
6.38.4.1
Protection and Automation Functions
6.38 Reverse-Power Protection
814 SIPROTEC 5, Overcurrent Protection, Manual
C53000-G5040-C017-8, Edition 07.2017
To Next Page
Loading...
