Transient Characteristic Analysis of Single-Phase Ground Fault in Resonance Grounding System
Yao Libao1, Huang Shiyuan2
1.Ningde Power Supply Bureau of Fujian Electric Power Co., Ltd, Ningde, Fujian 352100; 2.Maintenance Branch Company of Fujian Electric Power Co., Ltd, Fuzhou 350013
Abstract Against the lack of transient characteristic analysis conclusion of single-phase ground fault in resonance grounding system, the influence of fault initial phase and ground resistance was researched from time domain, the phase-frequency characteristic of equivalent impedance of various structural lines was analyzed detailed from frequency domain, the distribution rule of transient zero-sequence capacitive current in different structure of transmission lines was revealed, the SFB of resonance ground system was determined. The correctness of conclusion was verified by large of simulation experiment.
2013, Vol. 14 
