发电机绝缘试验异常的分析与探讨

Analysis and discussion on the abnormal test of generator insulation test

同步发电机是电力系统的心脏,其能否可靠工作,直接影响发供电的安全和质量。发电机在制造过程中,其绝缘可能受到损伤,形成弱点,在运行过程中,它会不断受到振动、发热、电晕、化学腐蚀以及各种机械力的作用,各个部件都会逐渐老化,并随着其他部件运行情况而受到影响,直至损坏,从而影响发电机安全运行。为了及早发现发电机绝缘缺陷,对发电机进行发电机预防性试验是十分必要的。

The synchronous generator is the heart of the power system. It can work reliably and directly affects the safety and quality of the power supply. The generator in the manufacturing process, the insulation may be damaged, the formation of weakness in the operation process, will continue to suffer vibration, fever, corona, chemical corrosion and mechanical force, so the various parts of it are gradually aging, and influence with other parts of operation, until the damage. Thus it affects the safe operation of the generator. In order to find out the insulation defects of the generator, it is very necessary to carry out the generator preventive test.