三相组合互感器检定装置研究

电力系统的不断发展,对三相组合互感器检定提出了更高的要求。传统的测试为单相电源下用单相电流和电压标准分别进行,既不符合国家相关规定,也不符合实际运行情况。本文提出一种基于DSP和CPLD的三相组合互感器检定装置,分析了装置的基本原理和系统结构,给出了三相组合互感器单相和三相检定的接线图,比较分析了实验数据,得出高压三相组合互感器检定装置能模拟实际运行状态,同时考虑了组合互感器内电压和电流互感器的相互影响造成的误差,明显优于传统检测方法。该装置能同时检测三相数据,具有体小质轻,运行可靠,能满足国家相关标准及行业的规定,能带来良好的经济和社会效益。

Three-phase combined transformer calibration device research

With the development of power system,higher requirements for the three-phase combined transformer calibration.Traditional test is the standard of single-phase current and voltage on single-phase power,this is inconsistent with state regulations and does not conform to the actual operation situation.This paper proposes an three-phase combined transformer calibration device based on DSP and CPLD,the basic principle and System architecture of device are proposed,the single-phase and three-phase wiring diagram of three-phase combined transformer calibration device and the test results are given.The test results show that three-phase combined transformer calibration device can simulate the actual running situation and think of the error of voltage and current transformers’effect.This device can detect three-phase data at the same time,it is light,portable and reliable,which meet the requirements of state regulations and can bring good economic and social benefits.