ADVANCED GENERATOR GROUND FAULT PROTECTIONS IN PULP AND PAPER MILL APPLICATIONS

BABU. S

Abstract


Ground faults in generator stator and field/rotor circuits are serious events that can lead to damage, costly repair, extended outage and loss of revenue. This paper explores advances in field/rotor circuit ground fault and stator ground fault protection. These advanced protection strategies employ AC injection, ground differential protection and the use of hybrid grounding to reduce both internal generator ground fault levels and facility ground levels in utility-paralleled operating modes.


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