[lohand3p-101210-01.tif, 3, en_US]
Figure 5-30 Logic for Manual Closure Detection
External Manual Closure
An external manual closure is communicated to the device via the input signal >Input. The input signal can
also be connected directly to the control circuit of the circuit-breaker closing coil. Detection via the input
signal >Input is also blocked if the circuit breaker is closed or if a protection trip is active.
Internal Manual Closure
Manual closure is detected in all cases if a close command is transmitted by the internal control function of
the device. This is possible because the control carries out plausibility checks itself and is also subject to inter-
locking.
Application and Setting Notes
Input Signals: >Input, >Blocking of Manual Closure
In practice, the input signal >Input is connected directly to the control circuit of the circuit-breaker closing
coil (see following figure).
[losteuer-150113-01.tif, 1, en_US]
Figure 5-31 Connection of the Input Signal to the Control Circuit of the Circuit-Breaker Closing Coil
Every closure of the circuit breaker is recorded in the process.
5.5.9.2
Function-Group Types
5.5 Function-Group Type Circuit Breaker, 3-Pole
SIPROTEC 5, High-Voltage Bay Controller, Manual 225
C53000-G5040-C015-9, Edition 11.2017
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