Title :
Research on circuit breaker lightning failure of open-ring point in 220kV electromagnetic loop network
Author :
Manling Dong ; Huan Ren ; Shuai Yao
Author_Institution :
State Grid Henan Electr. Power Res. Inst., Zhengzhou, China
Abstract :
A typical circuit breaker lightning fault of open-ring point in 220kV electromagnetic loop network is analyzed. The lightning intruding into the fracture of circuit breaker causes total internal reflection. And it´s the main reason causing the damage of circuit breakers in recent years. Through the analysis, the installation of MOA, in the overhead line entrance of open-ring point in vulnerable area, is the most effective and safe method for prevention of circuit breaker damage events.
Keywords :
arresters; circuit breakers; fracture; lightning protection; reflection; MOA installation; circuit breaker damage prevention; circuit breaker fracture; circuit breaker lightning failure; electromagnetic loop network; metal oxide arrester; open-ring point; overhead line; total internal reflection; voltage 220 kV; Insulators; Lightning; Switches; Voltage control; circuit breaker; lightning overvoltage; open-ring point; protective measures;
Conference_Titel :
Lightning Protection (ICLP), 2014 International Conference o
Conference_Location :
Shanghai
DOI :
10.1109/ICLP.2014.6973134
