一起励磁变超温引起的发电机组跳闸事故分析
摘要：介绍一起因Unitrol 5000励磁系统励磁变超温造成的发电机组跳闸事故,根据保护动作情况和录波数据,通过全面检查,得出事故发生的根本原因系励磁变测温元件采样失真,间接原因为励磁变温度保护配置欠合理。
Abstract:An accident of generator trip caused by over temperature of excitation transformer which run through the UNITROL 5000 excitation system had been in-troduced in this paper.According to the protection action and the recorded data, through the comprehensive inspec-tion, it is concluded that the fundamental cause of the acci-dent is the sampling distortion of the temperature measure-ment element in the excitation transformer, and the indirect reason is that the temperature protection configuration of the excitation transformer is not reasonable.
标题：一起励磁变超温引起的发电机组跳闸事故分析
title:Analysis of One Generator-tripping Accident Caused by Over Temperature of Excitation Transformer
作者：王永强, 毛庆波, 刘世富, 巩秀中, 张超
authors:WANG Yongqiang, MAO Qingbo, LIU Shifu, GONG Xiuzhong, ZHANG Chao
关键词：励磁变,超温,温度保护,
keywords:excitation transformer,over temperature,temperature protection,
发表日期：2017-10-30
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