摘要
分析了白山发电厂发电机励磁功率整流装置尖峰过电压过高的问题,采用氧化锌压敏电阻和阻容保护相结合的保护方式,通过压敏电阻降低过电压的幅值,同时由阻容保护降低过电压的陡度,解决了尖峰过电压过高的问题。
The problem of exorbitant peak overvoltage of the excitation system of the Baishan Hydropower Plant units is analyzed, The protection mode of combination of ZnO piezo-resistance and RC protection is adopted to solve the problem. The value of overvoltage is reduced with piezo-resistance, and the gradient of overvoltage is debased with RC protection,
出处
《水电自动化与大坝监测》
2008年第2期21-23,共3页
HYDROPOWER AUTOMATION AND DAM MONITORING
关键词
换相过电压
自并励
尖峰过电压
阻容保护
氧化锌压敏电阻
phase conversion overvoltage
self-excitation
peak overvoltage
RC protection
ZnO piezo-resistance
