关于浇注干式变压器局部放电测量的几点意见

Some Opinions on PD Measurement of Resin Cast Dry Type Transformer

对三相干式电力变压器的局部放电试验线路、方法进行了论述。提出了符合标准要求的测试线路,并对三相变压器局部放电测量时单相和三相供电各有关部位电压进行比较,证明三相变压器局部放电测量不能用单相电源供电。

The circuit and method of PD test of three phase dry type power transformer are expounded. The test circuit which is accorded with the standand is given. The voltage on single phase and three phase power supply parts is compared when the PD of three phase transformer is measured. It is proved that the single phase power supply can't be used in PD measurement of three phase transformer. According to the standard, the three phase power supply should be used in PD mesurement.