变压器差动保护CT接线的判别

变压器主保护差动保护的接线至今没有一个可靠的方法检查,经常发生接错线的情况。本文对变压器本体和差动保护回路进行理论分析,并结合现场实际的试验方法,提出可靠的检查方法,有效防止了现场接线出错的情况,保证了电力系统正常运行。

Distinguish the Connection of Tramsformer Differential Protection CT

There is not a reliable method to check on the connection of transformer main protection-differential protection at present in setting substations, so that the mistakes of connection occurred often. In this paper, the analysis on transformer boby and differential protection circuit has been done theoretically, and a reliable checkyng method has been presented to prevent effectively from the connection mistakes in site, and to prove normal operation of power system.