CAJ | 학술논문

在校准指针式三相功率表时,由于一次侧和二次侧存在变比,往往三相功率的额定值由计算获得.单纯的认为在特定功率因数下,功率值为电流和电压乘积的方式,可能会带来较大的测量误差,甚至会对校准结果产生误判断. 本文将详细介绍这种互感器方式接入的三相功率表的校准方法,并进行理论分析.
재교준지침식삼상공솔표시,유우일차측화이차측존재변비,왕왕삼상공솔적액정치유계산획득.단순적인위재특정공솔인수하,공솔치위전류화전압승적적방식,가능회대래교대적측량오차,심지회대교준결과산생오판단. 본문장상세개소저충호감기방식접입적삼상공솔표적교준방법,병진행이론분석.
As the pointer type three-phase power meter with one side and two side ratio, the nomi-nal of three phase power is usually obtained by calculation. Aging voltage and aging current. In the sim-ple case, the power value is the product of voltage and current in a specific power factor, which may lead to a large error. And even a false judgement of the calibration results. In this paper, we will give a de-scription of the calibration method of the three phase power meter which is connected to the transformer, and theoretical analysis.