电力变压器带电检测方法综述

Review on Live Detection Methods of Power Transformer

列举了目前变压器开展的带电检测项目,并对这些项目的原理、工作方式及部分方法面临的问题进行了探讨和分析。带电检测主要包括高频局部放电检测、特高频局部放电检测、超声局部放电检测、铁芯接地电流检测、油色谱分析、红外测温及紫外电晕检测。通过比对发现,不同的检测项目都有其优越性和局限性,在现场实际应用过程中应相互配合使用,更准确地对变压器状态作出判断。

This article lists the current live detection items to carry out for the transforms,at the same time the theories,\}working methods and some methods of these projects are discussed and analyzed.The live detection methods are mainly divided into electrical and non electrical methods.The electrical methods mainly includes high frequency partial discharge detection,ultra high frequency partial discharge detection.The non electrical methods mainly includes ultrasonic partial discharge detection,grounding current detection,dissolved gas analysis of oil,infrafed imagery and ultraviolet imagery.By comparison found,different testing projects have their advantages and limitations.In the field of practical application process should be used in conjunction with each other.More accurate to determine the state of the transformer.