外施电流法对互感器伏安特性测试仪的校准分析

Calibration analysis of transformers voltage-ampere characteristic testers by external impressed current

互感器伏安特性测试仪主要是对互感器的伏安特性进行试验的专用仪器,是继电保护测试和高压绝缘测试的专业检测仪器[1]。此类仪器,各个厂家的名称不同、参数不一,但是,测试伏安特性作为其基本功能,是此类仪器的标准配置。为此,本文从电磁计量专业出发,选取其中电流部分功能进行校准分析,从而达到量值溯源的目的。

Transformer voltage-ampere characteristic testers are dedicated devices to test volt-ampere characteristic on transformers,which is a professional tester for relay protection testing and high-voltage insulation testing.This kind of device has different names in every factory,since they have different parameters.However,voltage-ampere characteristic is its basic function,which it the standard configuration.Therefore,this paper started from the major of calculating electric magmatic,selected several functions of current to calibration analysis,in order to trace the quantity.