一起主变差动保护动作的原因分析及处理

Cause analysis and treatment of a main transformer differential protection action

分析了由于检修工艺不到位而遗留的隐患所造成的主变引线短路故障的问题。指出检修质量对设备安全运行至关重要。

Analyzes the problem of hidden trouble of absent examining and repairing technics resulting in the short circuit failure of main transformation down-lead. Points out the significance of repairing quality for the safe operation of equipment.