Active High-Impedance Fault Detection Method for Resonant Grounding Distribution Networks
Zhiwei Yao,
Yang Liu,
Jian Chen
et al.
Abstract:Aimed at the high-impedance fault detection problem, this paper proposes a fault-feature enhancement method for actively detecting high-impedance faults. The essential characteristic of this method is that the fault features are actively enhanced without affecting the normal terminal voltage. The method consists of two stages, i.e., the feature-enhancement stage and the fault-detection stage. The terminal voltage difference between the fault and normal state is analyzed in the first stage. Then, the feasibilit… Show more
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