一起变压器近区短路故障的原因分析与改进措施

Cause Analysis and Improvement Measures of a Near-Circuit Short-Circuit Fault of a Transformer

摘要: 变压器担负着电能转换和传输的重要作用，变压器近区短路引发的线路跳闸及设备损坏将导致严重损失。结合某110 kV主变变低短路跳闸案例，分析母线绝缘破损的原因，并提出针对性的防范处理措施，为预防变压器近区短路提供了借鉴和应用范例。

Abstract: Transformer plays an important role in power conversion and transmission. Line trips and equipment dam-age caused by short-circuit in the near-field of the transformer will cause serious losses.This paper combines a 110 kV main transformer to low short circuit trip case,analyzes the causes of busbar insulation damage and proposes targeted prevention and treatment measures,provides reference and application cases for preventing short-circuit of transformer near area.