Breaker status signals route to SEL 351 and SEL 751 protection relays utilizing auxiliary contact states 52a and 52b. Terminal points 13 through 62 interface with the control circuits to monitor breaker position. The schematic details the wiring paths and contact configurations for digital relay inputs.
BKR STATUS TO SEL 351 BKR STATUS TO SEL 751 61 57 53 13 59 55 51 15 52a 52a 52a 52a 52b 52b 52b 52b 16 52 56 60 14 54 58 62
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