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Analysis on causes for burning of winding of asynchronous motor underground coal mine;

煤矿井下异步电动机绕组烧毁原因分析

The major factors caused the burning of DC electromotors are higher temperature of environment,improper ventilation,sparks causing short circuit burning badly between two pieces,heat emiting capacity of motor interior coil,ration problem of motor and the solder melting point being increased by high contents of Sn and Pb,etc.

5 k W)直流电机的故障原因进行总结 ,认为环境温度过高、通风效果不理想、火花严重造成片间短路击穿烧毁、电机内部绕组的散热能力影响电机寿命、电机的定额问题、焊接升高片时所用锡剂中的Sn、Pb含量影响焊剂的熔点等是造成直流电机现场烧毁的主要因素。

The burn of circuit breaker closing coils and contactors is a common problem in the switchyard operates.

断路器控制回路的合闸线圈和接触器烧毁现象是变电运行工作中经常遇到的普遍问题。

It consequently leads to motor misoperation or malprotection,resulting in motor to be burned.

但在生产实践过程中,笔者发现由于热继电器主双金属片受热膨胀的热惯性及动作机构传递信号的惰性原因,导致其缺相保护动作不够灵敏,对故障电流响应慢,往往导致电动机误操作,或不起保护作用,造成电动机烧毁。

This paper provides some measures for avoiding burn of neutral-line by analysing the causes of one example of burn of neutral-line.

中性线烧毁是低压配电系统中经常出现的故障,但大多是对地短路。

Burnout Fault Reason Analysis of 110kV Substation s High-voltage Switch Cabinet;

110kV变电站高压开关柜烧毁事故原因分析

The paper analyzes reasons of a motor burnout and propose how to solve these problem methods.

介绍了电动机烧毁的原因,提出了解决这些问题的办法。

Aiming at the reason of distributing transformer burnout and power consumption state of Laxiwa hydropower station,the paper stresses transformer burnout reason of over voltage,overloaded and artificially damaged problems,and makes an analysis according to the character of burnout transformer.

文章针对拉西瓦水电站配电变压器烧毁的原因和施工区的用电现状,重点提出了过电压、过负荷、人为损坏烧毁配电变压器的主要原因,并根据烧毁变压器的特征进行了分析。

This paper introduces the fault that water and electricity adaptor of the 600 MW generator stator was burned out that it occured 2 times.

介绍了一台600 MW发电机定子水电接头连续两次烧毁的事故,分析了故障原因及其处理过程,提出了改造措施。

Among the complex causes of transformer burn out, the overvoltage, overcurrent and manual damage are emphasized and their characteristics are analyzed.

针对配电变压器烧毁原因的复杂性 ,重点提出了过电压、过负荷、人为损坏原因烧毁配电变压器问题 ,并根据烧毁变压器的特征进行了分析。