Uncertainty Analysis in Potential Transformer Calibration Using a High Voltage Capacitance Bridge

Title & Authors
Uncertainty Analysis in Potential Transformer Calibration Using a High Voltage Capacitance Bridge
Jung, Jae-Kap; Lee, Sang-Hwa; Kang, Jeon-Hong; Kwon, Sung-Won; Kim, Myung-Soo;

Abstract
Precise absolute measurement of the errors in a potential transformer (PT) can be achieved using high voltage capacitance bridge (HVCB) and capacitive divider. The uncertainty in a PT measurement using the HVCB system was evaluated by considering the overall factors affecting during the calibration of a PT. The expanded uncertainties are found to be not more than $\small{30{\times}10^{-6}}$ for ratio and $\small{30{\mu}rad}$ for phase up to the primary voltage of \$V_p
Keywords
High Voltage Capacitance Bridge;Potential Transformer;Ratio Error;Phase Displacement;Uncertainty;PT Comparator;Capacitor;
Language
English
Cited by
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