Features
7
7SS52 V4 Manual
C53000-G1176-C182-1
− TRIP repetition with following unbalancing (2-stage CBF)
− Single-pole or three-pole start by external breaker failure protection and tripping
via the isolator replica
• Direct operation of the circuit breaker by the bay unit
• Direct tripping of busbar sections via binary inputs of the central unit
Figure 1-2 Pick-up characteristics of the busbar and breaker failure protection (unbalancing)
Figure 1-3 Earth fault characteristic
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