火电厂启备变带负荷检验的一种新方法

A new load test method of start-up and standby transformer in thermal power plant

为解决空载或轻载变压器投入系统后,难于进行母差保护带负荷检验的问题,本文设计出一种新的试验万法,通过变压器的励磁涌流来实现差动电流极性的检查。

When an unloaded or light load transformer was put into operation in power grid, in order to solve the problem which it＇s hard to take the bus-bar differential protection load test, this paper designed a new test method. The magnetizing inrush current of transformer was used to take the differential current polarity examine.