HE Liping1,LI Chunliang1,HUANG Zuwei1,CAI Zhaoyu1,ZHOU Zhiqin2,YIN Hao2. Abstract:To guarantee the stability and operation safety of power grid,on load test of new equipment shall be carried out before put into operation.After test on capacitor,electric reactor,cable and transformer,angle of attack charter of voltage,current and load flow value was drafted.After analyzing test results,the causes of change of current,voltage and phase was indicated.[J]. Huadian Technology, 2016, 38(2): 55-58.