发电厂厂用电系统及发变组是电力系统运行的重要基础。
Station service electrical system and generator-transformer block is of importance to the operation of power system.
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.
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.
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.
本文针对当前电力系统中大型发变组保护中的变压器保护提出了一种基于电流突变量的保护新方案。
In order to protect transformers of the large generator-transformer unit in power systems, the paper puts forward a kind of new principle of transformer protection based on break-variable of current.
介绍了发电机变压器组（以下简称发变组）监录与分析系统所采用的数据记录方式、分析软件的重要功能和设计特点。
The data record format used in the monitoring record and analysis system for generator transformer unit and the major functions and features of its analysis software are introduced.
为此以发变组差动保护为例对故障分量差动保护在WYB 0 1型保护中的应用进行分析，以求引起更多的关注和讨论。
But now there are some different opinions about its differential protection based on fault component. So this paper gives some discussions on it.
为此以发变组差动保护为例对故障分量差动保护在WYB 0 1型保护中的应用进行分析，以求引起更多的关注和讨论。
But now there are some different opinions about its differential protection based on fault component. So this paper gives some discussions on it.
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