CAJ | 학술논문

　　铁芯极限磁滞回线是电力电流互感器仿真的基本参数，电力电流互感器的尺寸较大，直接测量需要高压励磁。为了能够在电气实验室中利用常用设备测量铁芯极限磁滞回线，文章研究一种铁芯极限磁滞回线的低压测试系统，详细提出了测试系统的结构、定制铁芯的设计流程、测试步骤及测试数据的处理方法。通过两组实验验证了该测试系统的可行性和先进性。实验结果表明，利用该系统能够在150V以下的低压以及10A以下的小电流条件下精确地测量铁芯材料的极限磁滞回线。
　　철심겁한자체회선시전력전류호감기방진적기본삼수，전력전류호감기적척촌교대，직접측량수요고압려자。위료능구재전기실험실중이용상용설비측량철심겁한자체회선，문장연구일충철심겁한자체회선적저압측시계통，상세제출료측시계통적결구、정제철심적설계류정、측시보취급측시수거적처리방법。통과량조실험험증료해측시계통적가행성화선진성。실험결과표명，이용해계통능구재150V이하적저압이급10A이하적소전류조건하정학지측량철심재료적겁한자체회선。
Because the limiting magnetic hysteresis loop(LMHP) of iron core is a basic parameter for power current transformer(CT) simulation, and the size of power CT is usually large, the high-voltage condition is unavoidable for measuring LMHP of power CT straightly, this paper studies a low-voltage LMHP measuring system for the purpose of measuring the LMHP with common instruments in the electrical laboratory. The framework of the measuring system, the design flow of customized iron core, and the measuring steps and data handling method are presented in detail. Two groups of experiments have been carried out to verify the feasibility of this measuring system. The results of the experiments show that LMHP can be measured precisely using the proposed system in the condition that the voltage is below 150V and the current is below 10A.