冶金动力Issue(3)：53-56,4.
直流接地引发高压电机跳闸事故的分析处理
Analysis and Handling of a High-Voltage Motor Trip Accident Caused by DC Grounding
张帅 1马华明 1常新海1
作者信息
- 1. 酒钢(集团)宏晟电热公司,甘肃 嘉峪关 735100
- 折叠
摘要
Abstract
An analysis of a high-voltage motor trip accident caused by two-point DC ground-ing revealed that steam infiltration into the motor's emergency button box led to condensation in win-ter,forming two grounding points of different polarities,which triggered the trip and load reduction.Further analysis confirmed that the mismatch between DC grounding resistance and the anti-jump relay setting was the root cause.Solutions such as sealing steam leakage points,adjusting the anti-jump relay setting,and strengthening insulation supervision were proposed.This case provides prac-tical insights for preventing DC system faults.关键词
直流接地/防跳继电器/绝缘监督Key words
DC grounding/anti-jump relay/insulation supervision分类
信息技术与安全科学引用本文复制引用
张帅,马华明,常新海..直流接地引发高压电机跳闸事故的分析处理[J].冶金动力,2025,(3):53-56,4.
