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

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.

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

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

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

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

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

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.

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

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