截波引起的变压器绕组内部谐振问题

The Problem of Internal Resonance in Transformer Windings Caused by Wave-Chopping

本文从一台变压器A相中压绕组及调压线圈被损坏的事故,分析和证实了变压器绕组在截波激励下产生的内部谐振现象,并提出了对策与建议。

This article dissusses the damage of transformer A phase medium-voltage winding and regulating-voltage windings. The phenomenon of internal resonance in transformer windings, in which excitation resulted from choppdwave, is confirmed, and some recommendations are proposed.