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。
His house burnt down last week.
他家房子上星期烧毁了。
A number of houses were burnt down in the fire.
好些房子给烧毁了。
The books were destroyed.
这些书都被烧毁了。
The factory was gutted by flames.
那家工厂被烧毁了。
The factory burned to the ground.
工厂被彻底烧毁了。
The gas tank was hit and went up in flames.
油库中弹起火被烧毁了。
The cottage was a casualty of the forest fire.
那小屋被森林大火烧毁.
The village went up in flames.
那村庄被大火烧毁了。
Part of the building was destroyed in the fire.
建筑物有一部分已烧毁.
because the basement is becoming burnt
因为地下室被烧毁了。
The barn full of hay went up in smoke.
堆满干草的粮仓烧毁了。
Fire gutted the house.
大火烧毁了房子的内部
Have all the rooms burnt down?
所有的房间都烧毁了吗?
The burntout airliner was completely written off,it could no longer be considered to have any value.
烧毁的飞机完全无用了。
He burnt all his papers.
他烧毁了（他）所有的文件。
He amassed his papers for burning.
他把文件集拢来烧毁。
A fire burnt the house down.
一场火将房子烧毁了。
the carcass of a burned-out building.
烧毁建筑物的基本构架.
