TESTING OF 800 AND 1200 kV CLASS CIRCUIT BREAKERS

摘要：

The most critical transient a circuit breaker has to endure during its operation is the transient recovery voltage (TRY), initiated by the electric power system as a natural reaction on current interruption. For circuit breakers intended to operate in ultra-high voltage systems (with rated voltage above 800 kV), the realization of realistic transient recovery voltages in testing of these circuit breakers becomes a real challenge. In this contribution a new and proven method is described of creating adequate TRVs by a double stage synthetic test circuit. Due to the extremely high voltages to be applied immediately after interruption of very high fault current, a two-stage approach is necessary. This is the only way to perform full-pole testing, the realistic laboratory simulation of service conditions during fault current interruption.

作者: R.P.P.Smeets S.Kuivenhoven A.B.Hofstee

作者单位: KEMA Testing Inspections & Certification, Utrechtseweg 310,6812 AR Arnhem, the Netherlands

会议类型: 国际会议

会议名称: 2011 1st International Conference on Electric Power Equipment-Switching Technology(第一届电力设备开断技术国际会议 ICEPE)

会议地点: 西安

会议语种:英文

页码: 17-21

在线出版日期: 2011-10-23（万方平台首次上网日期，不代表论文的发表时间）