PENG Xiang-yang1, ZHONG Ding-zhu1, LI Kai-man2. Analysis of Insulation Breakdown of Two Sides Breaker in 220 kV Transmission Line Caused by Multiple Lightning Strikes[J]. High voltageapparatus, 2009, 45(5): 146-148.
PENG Xiang-yang1, ZHONG Ding-zhu1, LI Kai-man2. Analysis of Insulation Breakdown of Two Sides Breaker in 220 kV Transmission Line Caused by Multiple Lightning Strikes[J]. High voltageapparatus, 2009, 45(5): 146-148.DOI:
This paper introduces lightning strike fault of 220 kV line
substation equipments damage of two sides and inside trouble discovery of breaker;analysis line fault examination
lightning parameters
overvoltage and time relay protection
and confirms damage causation at the same time of two breakers;indicates that breakers strikes out because of multiple lightning strikes of short line and addition process of lightning intruding waves and its reflect waves.Then the paper suggests to carry out the combined voltage tests of lightning impulse and anti-polarity power frequency voltage test
and adding substation lightning arresters on terminal of 110 kV
220 kV overhead transmission line of strong lightning area.