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变压器常见的问题有局部过热、局部放电、绝缘老化和铁心多点接地等,也有绕组变形、有载调压开关失灵等机械方面产生的问题。此外介质损耗和油流带电等诸多问题也影响变压器的安全运行。1 变压器局部放电在线监测 变压器局部放电信号十分微弱,去除干扰的技术往往决定了变压器局放在线监测系统的成败。有一定规律性的
Transformer common problems are local overheating, partial discharge, insulation aging and core multi-point grounding, etc., but also the deformation of the winding, on-load tap changer failure and other mechanical problems. In addition, dielectric loss and oil flow and many other issues also affect the safe operation of the transformer. 1 transformer partial discharge online monitoring transformer partial discharge signal is very weak, remove the interference of the technology often determines the success of the transformer PD online monitoring system. A certain regularity