二滩电厂发电机转子一点接地保护原理探讨及改进措施

Discussion and improvement on principle of rotor one point to earth protection for generator in Ertan Power Station

详细论述了二滩电厂发电机转子一点接地保护装置工作原理 ,剖析其死区存在之机理和灵敏度不对称而导致的严重后果 ,并提出了改进措施和进一步的研究设想。

The principle of rotor one point to earth protection device for generator in Ertan Power Station is presented in detail in this paper. The cause of dead zone and the serious result of the asymmetrical sensitivity are analyzed as well. Improvement and further study are proposed.