Performance of Novel Neutral Admittance Criterion in MV-Feeder Earth-Fault Protection

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Published 21 October 2009 | By ABB

This paper describes the fundamentals of the neutral admittance based earth-fault protection and suggests improvements to the traditional measuring principle and operation characteristics. The performance is also evaluated and compared with traditional earth-fault protection schemes. The results show that the neutral admittance criterion has potential to become a standard and widely used earth-fault protection function in high impedance earthed networks.

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