电子式电流互感器采样电路的计算与测试

Calculation and test of sampling circuit of electronic current transformer

电力系统中一个非常重要的高压设备就是电流互感器,在测量电流与继电保护中经常需要使用到电流互感器。传统的电磁式电流互感器虽然具有较高的可靠性、稳定性、丰富的运行经验且原理简单,可是,伴随着电力系统电压等级的不断提高,人们对大容量、远距离互联电网及输电线路也提出了越来越高的要求,电磁式电流互感器已经无法满足人们的需求,此时电子式电流互感器便应运而生了。本文对电子式电流互感器采样电路的计算与测试进行了探讨,可供参考。

The power system in a high voltage equipment is very important in current transformer, current measurement and relay protection often need to use the current transformer. The traditional electromagnetic current transformer while reliability, higher stability, rich operating experience and has the advantages of simple principle, but with the voltage level of the power system continue to improve, people on the large capacity, long-distance interconnection and transmission line is also put forward higher requirements, electromagnetic current transformer has been unable to meet the needs of the people, the electronic current transformer is presented. The sampling calculation and test circuit of electronic current transformer in this paper It has been discussed for reference