对广东某电厂发电机的100%定子接地保护改造情况进行了讨论分析。
The reconstruction of100%stator grounding protection for the generator of a power plant is discussed.
本文介绍了利用微机和数字滤波对发电机定子绕组进行100%接地保护的装置。
This paper introduces a device of 100% grounding fault protection for stator windings of generator by microcomputer and digital filter technique.
指出了现有中小型发电机定子接地保护原理的不足。
The drawbacks of present stator ground fault protection principle for the small and medium sized generators are pointed out.
并据此对传统发电机基波零序电压型定子接地保护的原理提出了改进意见。
Improvement of traditional protection of generator stator grounding based on 3U 0 is presented.
发电机定子接地保护及转子接地保护是发电机的继电保护系统中的一项重要内容。
Hence, the stator and rotor ground fault protection play an important role in the protection system of generator.
通过发电机定子接地保护之间的相互配合，在整个发电机定子绕组范围内发生单相接地故障时，发电机定子接地保护均能灵敏地动作。
Through cooperating each other between the generator stator ground protection, it can operate sensitively when single phase ground fault in whole range of generator stator winding occurs.
分析了轴电压吸收回路以及接地碳刷与大轴间接触电阻对发电机转子接地保护的影响，并分别提出了相应的对策和注意事项。
This paper analyzes the influences of shaft voltage absorbing circuit and brush touching resistance on the performance of generator rotor earth fault protection.
通过对发电机滑环的处理及对转子一点接地保护程序的修改，有效地避免了发电机转子一点接地保护动作的再次发生。
Via slip ring disposal and modifying program of rotor one point ground protection, rotor one point ground protection operation again is effectively avoided.
文章在分析100%定子接地保护动作方式的基础上，对其提出了可行的改进方案。研究结果表明，改进方案能更好地保证发电机安全并有利于电力系统稳定。
In this paper, the operation style of the 100% stator ground protection based on twice frequency separation is analysed, and the feasible improving scheme is put forward.
介绍了漫湾电厂发电机3ω定子接地保护原理、调试方法及发电机定子三次谐波电压的测试。
The principle, testing of generator stator ground protection based on the third harmonics, measurement of the third harmonics on generator stator are introduced.
介绍了漫湾电厂发电机3ω定子接地保护原理、调试方法及发电机定子三次谐波电压的测试。
The principle, testing of generator stator ground protection based on the third harmonics, measurement of the third harmonics on generator stator are introduced.
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