电气制动对负序过负荷保护的影响分析

华电技术 ›› 2014, Vol. 36 ›› Issue (8): 55-56.

电气制动对负序过负荷保护的影响分析

(浙江华电乌溪江水力发电厂，浙江衢州〓324000)

出版日期:2014-08-25 发布日期:2014-10-11

Analysis on influence of electric braking on negative sequence overload protection

(Zhejiang Huadian Wuxijiang Hydropower Plant, Quzhou 324000, China)

Online:2014-08-25 Published:2014-10-11

摘要/Abstract

摘要： 摘要：从发电机负序过负荷保护原理、电气制动原理、保护装置采样原理等多角度入手，分析了一起水轮发电机负序过负荷保护功能误发信事件的原因，总结了发电机电气制动对发电机负序过负荷保护运行的影响。

关键词: 关键词：电气制动, 负序过负荷, 负序滤波, 继电保护整定

Abstract: Abstract:When the electric braking device is used to stop the hydrogenerator, the negative overload protection tripped incorrectly and gave relevant signal. Starting from multiple angles, which include the principle of negative sequence overload protection of generator, the principle of electric braking and the sampling principle of protection devices, the reason of the false trip accident was analyzed. The influence of the generator electric braking on the negative overload protection operation of the generator was summarized.

Key words: Keywords:electric braking, negative sequence overload, negative sequence filtering, relay protection setting

吴朝波，冯心. 电气制动对负序过负荷保护的影响分析[J]. 华电技术, 2014, 36(8): 55-56.

WU Chaobo, FENG Xin. Analysis on influence of electric braking on negative sequence overload protection[J]. Huadian Technology, 2014, 36(8): 55-56.