静止励磁轴电压滤波回路对发电机转子接地保护装置的影响

华电技术 ›› 2015, Vol. 37 ›› Issue (12): 7-9.

静止励磁轴电压滤波回路对发电机转子接地保护装置的影响

西安热工研究院有限责任公司，西安７１００３２

出版日期:2015-12-25

Effects of static excitation voltage filter circuit of generator rotor grounding protection devices

Xi’an Thermal Power Research Institute Company Limited，Xi’an 710032，China

Published:2015-12-25

摘要/Abstract

摘要：

摘要：阐述了发电机转子注入方波电源式接地保护、乒乓式接地保护及励磁轴电压滤波器的工作原理，指出注入方波电源式接地保护和乒乓式接地保护受励磁轴电压滤波器参数影响较大的特点。结合工程实例，分析了励磁轴电压滤波器对注入方波电源式接地保护、乒乓式接地保护的影响。结果显示，励磁轴电压滤波器会导致注入方波电源式接地保护和乒乓式接地保护的接地测量值不能正确反映发电机转子绕组的接地阻值，提出了参数调整。

关键词: 关键词：转子接地, 轴电压滤波器, 励磁轴电压, 参数选择

Abstract:

Abstract:The theory of the injection square wave ground protection,PingPang ground protection,and excitation voltage filter for generator rotor were analyzed.The injection wave ground protection and PingPang ground protection were easily affected by the parameters of the excitation voltages. Based on the engineering projections,the effects of the.

Key words: ">Keywords:">generator, rotor ground, ground protection, excitation shaft voltage filter, parameter selection

李毅，张文斌，李洲,王智高. 静止励磁轴电压滤波回路对发电机转子接地保护装置的影响[J]. 华电技术, 2015, 37(12): 7-9.

LI Yi, ZHANG Wenbin, LI Zhou, WANG Zhigao. Effects of static excitation voltage filter circuit of generator rotor grounding protection devices[J]. Huadian Technology, 2015, 37(12): 7-9.