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GDVA-405 Automatic CT PT Analyzer is used to analysis the characteristics of current transformer (CT) and potential transformer(PT).It can carry all the test items for CT PT.Functions and Applications:CT turns ratio detection, ratio error and angle error calibration, polarity test and excitation cha
The measurement error of the transformer is related to the impedance of the secondary circuit. The increase of the impedance will increase the error, and the accuracy will decrease. Therefore, the external impedance is a key factor in determining the exact level at which the current transformer oper