Configuration - ABB RELION REB500 Operation Manual

Section 6
Additional protection options
IEC18000336 V2 EN-US
Figure 10: Block diagram of BFP (logic type 1)
6.1.2

Configuration

BFP has two adjustable timers. At the end of time t1, a second attempt is made to trip the
breaker that has failed to trip; at the end of time t2 the surrounding breakers are tripped. A
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Distributed busbar protection REB500
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