open CT-circuit alarm relay CT断线报警继电器
There are two different points of view on whether current relay operates correctly or not, when CT saturates.
电流互感器（CT）饱和时，电流继电器能不能正确动作，一直存在二种载然不同的观点。
This article presents a new method to detect CT and PT wire break. This method can be used on generator micrcomputer based relay protection device against internal short circuit fault.
本文提出了一种有效的单片机发电机内部短路保护中电流互感器CT和电压互感器PT的断线判别方法。
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