电容换位法检定高压电容电桥的固有偏差分析

Analysis of inherent deviation of high voltage capacitor bridge by capacitance transposition method

高压电容电桥是测量高压电容量和介质损耗因数的常用仪器,电容换位法是检定高压电容电桥的比值误差主要方法之一,本文阐述电容换位法检定的比值误差的工作原理,互换的高压电容器电容量选取要求,并提出电容换位法检定过程中其它注意的问题。

High voltage capacitor bridge is a common instrument for measuring high voltage electric capacity and dielectric loss factor.Capacitance transposition method is one of the main methods to verify the ratio error of high voltage capacitor bridge.This paper expounds the working principle of ratio error verified by capacitance transposition method,the selection requirements of exchanged high voltage capacitor capacitance,and puts forward other problems needing attention in the verification process of capacitance transposition method.