GE IAC77B Manual page 53

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A-C BUS
TRIP
D-C BUS
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5t H
51-2 51-1
a
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A
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FIG. 14 (0246A6966-0 EXTERNAL CONNECTIONS OF FOUR IAC77A RELAYS USED FOR MULTI-PHASE A ND P�ASE TO
TO GROIJND FAULT PROTECTION O F A 3-PHASE CIRCUIT
27