Shang Zhenqiu. The Analysis on Whether ZnO Surge Arrester Can Protect H.V. Motor from Damage Caused by Switching Overvoltage of Vacuum Circuit Breaker[J]. High voltageapparatus, 1989, (3): 3-6.
Shang Zhenqiu. The Analysis on Whether ZnO Surge Arrester Can Protect H.V. Motor from Damage Caused by Switching Overvoltage of Vacuum Circuit Breaker[J]. High voltageapparatus, 1989, (3): 3-6.DOI:
ZnO避雷器能否保护高压电动机免受真空断路器操作过电压危害的分析
摘要
通过理论分析表明
由于操作过电压主要产生在高压电动机的相与相之间
而现行的ZnO避雷器皆为星形接线
所以
它对高压电动机相对地的绝缘可起到一定的保护作用
而对相对相之间的绝缘则完全不能进行保护。
Abstract
Theoritical analysis shows that switching overvoltage mainly arises between phase and phase
so Y-scheme of ZnO surge arrester can only protect the phase-earth insulation of H.V. motor in some way but not phase -phase insulation.