负荷箱校准装置的校准方法  

Research on calibration method of load box calibration device

作　　者：江鹏[1] 宋均正[1] 谢文 刘剑 Jiang Peng;Song Junzheng;Xie Wen;Liu Jian(Guangdong Institute of Metrology)

机构地区：[1]广东省计量科学研究院

出　　处：《上海计量测试》2021年第2期38-40,共3页Shanghai Measurement and Testing

摘　　要：分析了该类测试仪的工作原理与基本特点,并结合工作实践,基于工频比率电源和标准功率源两类试验设备,介绍了两种校准方法并进行比较,为相关仪器校准提供了一种思路。The load box calibration device is used to calibrate the load value of the current or voltage transformer load box in the transformer verification circuit,including quadrature component and in-phase component,and needs to be calibrated regularly to ensure its accuracy.At present,most of the load box calibration devices on the market work on the principle of voltammetry,that is,to measure the load value by sampling the voltage signal and current signal.This article analyzes the working principle and basic characteristics of this type of device,combined with work practice,based on two types of test equipment of power frequency ratio power supply and standard power source,introduces and compares two calibration methods,and provides ideas for calibration of related instruments.

关 键 词：负荷箱校准装置 工频比率电源 标准功率源 校准 

分 类 号：TH70[机械工程—仪器科学与技术]