主变复压闭锁过流保护复合电压压板的运行分析

Operation Analysis of the Compound Voltage Clamp of the Compound Voltage Over Current Blocking for Main Transformer

针对目前各主变保护在复合电压功能、二次接线、压板名称定义等存在差异的问题,分析了镇江地区部分常用主变复压闭锁过流保护的原理及复压压板的运行要点,提炼了复压压板操作的重点、难点,为设备安全运维提供参考。

Aiming at the difference problem of the function of composite voltage,secondary wiring and the name definition of the clamp in main transformer protection,the principle of compound voltage over current blocking and the operation characteristics of the compound voltage clamp of the commonly used main transformers in Zhenjiang were analyzed.The key points of operation and maintenance of the compound voltage clamp were summarized.The references for the safety operation and maintenance of equipment were provided.