电流互感器、电压互感器二次参数选择问题研究

Research on selection of secondary parameter of current transformer and voltage transformer

电流互感器(TA)、电压互感器(TV)作为电力系统一次和二次设备之间的连接环节,其各项性能指标直接影响着整个电力系统的安全可靠运行,合理选择电流互感器和电压互感器是一个非常重要的问题。在国家电网公司输变电工程通用设计变电站二次系统部分电流互感器、电压互感器二次参数选择章节基础上,就其中一些"宜"、"或"问题加以阐述分析,提出推荐意见,以供参考。

A reasonable selection of current transformer and voltage transformer is very important since current transformer （ TA ） and voltage transformer （TV） is the link between the primary and the secondary power system equipment, which has the direct impact on safe and reliable operation of power system. Based on the selection of secondary parameter of current transformer and voltage transformer in substation in Universal design for power transmission and transformation project of State Grid Corporation, some problems with ＂should be＂ and ＂or＂ topics in the above were analyzed and the recommendations were given for reference.