励磁涌流引起主变差动保护动作原因分析及防范措施

Cause Analysis and Preventive Measures of Differential Protection for Main Transformer Caused by Magnetizing Inrush Current

本文对变压器空载充电过程中差动保护动作情况进行分析,经过相关的录波报告阐述了励磁涌流出现的原因及特征,并提出了一些预防措施。

This article analyzes the differential protection action in the process of transformer no-load charging. It expounds the causes and characteristics of magnetizing inrush current through relevant record report, and puts forward some prevention measures.