特高压站用变压力释放动作异常分析

Analysis of Pressure Release Action Abnormal of UHV Station Transformer

针对某交流特高压变电站在站用变内部未发生实际故障的情况下,监控后台报"#1高压站用变非电量保护装置开关压力释放跳闸动作"告警信号的异常事件,阐述异常分段检查及处理方法,最终判断出现异常的主要原因是电缆或压力释放动作接点间的绝缘存在问题。

The monitoring system reported an alarm signal“The switch pressure release alarm action of the non-electricity protection device for the#1 high-voltage station transformer”while there was no actual fault within the station transformer.In view of this situation,segment checking and treatment of abnormity were introduced.Finally,the main reason for the abnormality was the insulation problem between the cable or the contact point of the pressure release action.