BUTENKO'S METHOD FOR VERIFICATION OF SCALING VOLTAGE TRANSFORMER

摘要

The invention is related to the area of electrical-measuring technique and can be used for verification of scaling transformers of electric voltage. A method for verification of scaling voltage transformer consists in comparison of scaling transformer being verified at high voltage to supplementary one with use of a measuring device that is connected to the leads of those scaling transformers. Preliminarily one connects the sources of high voltage to each scaling transformer. Then one carries out comparison through measurement of voltage between the low-voltage leads of scaling transformers, at that the measurement is carried out at equality of voltage on the high-voltage lead of scaling transformer being verified to voltage on the high-voltage lead of the supplementary scaling transformer. After that one compares low voltages of scaling transformers, and additionally comparison is carried out through measurement of voltage between the low voltage leads of scaling transformers. At that additionally at equality of high voltages of scaling transformers one measures voltage on the low voltage lead of supplementary scaling transformer, and at equality of low voltages of scaling transformers one measures second voltage on the low voltage lead of supplementary scaling transformer. Then one determines scaling transformation coefficient of scaling transformer being verified. The technical result of the invention is in exclusion of effect of change of voltage value on the high-voltage lead of supplementary scaling transformer on result of determination of scaling transformation coefficient of scaling transformer being verified.