大型变压器投用故障实例分析

Analysis of faults of large transformers during switching-on tests

介绍某电厂1 000 MW超超临界机组主变冲击过程中的放电情况,对其放电原因进行了分析,并对大型变压器冲击放电的防范措施提出了建议。

The discharge fault occurred in a main transformer of a 1 000 MW ultra-supercritical unit in a power plant during the switching-on test is presented. Causes are analyzed and countermeasures are proposed.