Measurement of Ratio Error/Phase Angle Error of Potential Transformer using High Voltage Capacitance Bridge and Uncertainty Analysis

고전압 전기용량 브리지를 이용한 전압변성기의 비오차와 위상각 오차의 측정과 불확도 분석

  • Published : 2006.03.01

Abstract

A potential transformer(PT) has ratio error and phase angle error. Precise measurement of the errors of PT can be achieved using high voltage capacitance bridge, high voltage capacitor and low voltage capacitor. The uncertainty for this method is evaluated and found to be $20{\times}10^{-6}$ in both ratio error and phase angle error. The values measured for PT using the method are well consistent with the those measured for same PT in NMIA(National Measurement Institute of Australia) within the corresponding uncertainty.

Keywords

References

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