采用了从一次系统加试验电压的方法进行发变组保护TA、TV回路试验的方法；

The method of adding voltage to the equipment is applied to test the circuit of the TA and TV.

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探讨了发变组保护与发电机励磁系统的一些相关问题，提出了这两个系统协调工作的方法。

This article discussed some relative problems between the generator-transformer protection and the excitation system, and provided the coordination methods of the tow system.

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运行多年的300 MW火力机组，其发变组保护设备落后、老化、校验复杂、保护灵敏度低。

After more than 10 years of operation, the generator-transformer protection of the 300 MW thermoelectric units became technologically behind, aging, too complicated in checking, and less sensitive.

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