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Purpose of Stator Earthfault Relay: Type-PVMM |
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Answer» A 100% stator earthfault protection is designed to detect earthfault occurring in the regions of machine winding close to the neutral end. This relay is a composite modular relay that gives 100% stator earthfault protection for machines, whose neutral are not directly earthed. It works on the principle involving monitoring of the neutral side and line-side components of the third harmonic voltages produced by AC generators in service. |
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