Transcription of Module 4 : Overcurrent Protection : Earth Fault …
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Module 4 : Overcurrent Protection : Earth Fault …
Module 4 : Overcurrent ProtectionLecture 17 : Earth Fault Protection using Overcurrent Relays Objectives In this lecture, we will learnOvercurrent Protection against Earth coordination for Earth Fault for adaptive Relays Earth - Fault relay is used toprotect feeder against faultsinvolving ground. Typically, earthfaults are single line to groundand double line to ground the purpose of setting andcoordination, only single line toground faults are considered. Consider a radial system asshown in fig For a faultnear the source, the maximumfault current for a-g Fault is givenby.
Module 4 : Overcurrent Protection Lecture 17: Earth Fault Protection using Overcurrent Relays Objectives In this lecture, we will learn Overcurrent protection against earth faults. Relay coordination for earth fault relays.
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