10.5MW空压机微机正序保护动作跳车事故分析

The Malfunction Analyse about the Movement of Microcomputer's Positive Phase Protection when 10.5 MW Air Computer Working

本文介绍分析了珠海万力达MMPR-20H-T1微机正序保护动作的原理与整定,并通过空压机三次跳测车事故分析,即空压机正常运行时,MMPR-20H-T1微机三次正序保护动作分析,发现是保护装置中的正序保护延时定值有些问题,造成微机正序保护动作,空压机跳车。

This paper introduce the principle and fixed match of Zhuhai Wanlida MMPR-20H-T1 microcomputer's positive phase protection . Through the shutdowns of the air compressor in continual three times, discover that there is some problem in the relay-time of microcomputer's, and then cause the movement of microcomputer's Positive phase protection.