Study of Earth-Fault Location Method for Distribution Network Based on Transient Signal
According to the generating process and propagation characteristics of earth-fault transient signal, an earth-fault location method for distribution network based on transient signal is presented. In the method, in order to change line characteristic impedance, a resonant filter circuit is paralleled in line segment border, so that it could cause transient current energy differences in feature frequency band on both sides of detection device. The location method achieves earth-fault area location through comparing transient current energy and energy attenuation coefficient in feature frequency band. The simulation test result shows that the method isnt influenced by distribution system grounded style, operation style and other factors and which could detect the earth-fault area rapidly and reliably in distribution network and has a high project application value.
Distribution network Transient signal Earth-fault Fault location Energy
Zhi Chao Huang Yi Zhong Cai Lin Li Mu Liu Sheng Zhen Yang
Guilin University of Electronic Technology,Guilin,Guangxi,541004,China
国际会议
上海
英文
742-746
2011-10-21（万方平台首次上网日期，不代表论文的发表时间）