现场变压器局放试验干扰排除方法研究

Study on the Method of Eliminating Interference in Partial Discharge Test of Field Transformer

变压器是整个电力系统中的重要设备,其运行情况直接影响到整个电力系统的有效运行,一旦发生故障将给企业造成极大的损失。而变压器在经过一系列的运输、安装、处理等过程后其绝缘水平有发生变化的可能,因此,在投入使用前一定要进行现场局部放电试验。文章主要结合实例,对变压器现场局放试验的干扰类型及特点进行了分析,并提出了相应的排除方法。

Transformer is an important equipment in the whole power system,its operation will directly affect the effective operation of the whole power system,once the failure will cause great losses to the enterprise.After a series of transportation,installation and treatment,the insulation level of the transformer may change.Therefore,the on-site partial discharge test must be carried out before the transformer is put into use.In this paper,the interference types and characteristics of transformer local discharge test are analyzed,and the corresponding elimination methods are put forward.