Lightning Transient Simulation and Analysis of EGLA under Single-Ended Circuit Breaker Open System

摘要：

The lightning strike overvoltage is the main reason which causes the overhead transmission application of externally gapped line surge arrester (EGLA).When single-ended gas circuit breaker (GCB) is required by system power flow with normal open.However, under the normal open conditions, when a lightning overvoltage strikes overhead transmission lines at the export of substation, flashover may occurs from the arc horn of post insulation of air-break switch (ABS) or even burning accident of GCB occurs.This paper presents the study of lightning surges performance transient overvoltage in a 69kV circuit breaker normally open system.Then, major criteria suggested by IEEE and IEC standards are used to assess the level of insulation coordination of a 69kV circuit breaker normally open system.

关键词： externally gapped line surge arrester lightning surges insulation coordination

作者: M. T. Chen S. J. Hsiao

作者单位: Department of Electrical Engineering,National Kaohsiung University of Applied Sciences Kaohsiung, Ta National Kaohsiung University of Applied Sciences, Kaohsiung,Taiwan

会议类型: 国际会议

会议名称: 第七届亚太防雷国际会议

会议地点: 成都

会议语种:英文

页码: 1-4

在线出版日期: 2011-11-01（万方平台首次上网日期，不代表论文的发表时间）