关于变压器局放试验若干问题的探讨

A Discussion on Several Problems of Transformer Partial Discharge Test

变压器现场局部放电试验受到各种因素的影响,本文探讨了局放的试验原理及试验中主变等效电容的计算问题,分析了分接开关档位设置问题,以及现场干扰对局放试验的影响,并针对这些问题提出具体解决方案。现场试验结果证明了方案的可行性。

Partial discharge test in transformer field is affected by various factors.This paper discusses the test principle of PD and the calculation of equivalent capacitance of main transformer in the test,analyzes the setting of gear position of tap changer and the nifluence of interference,also proposes the specific solutions to these problems.The feasibility of the scheme is proved by field test results.