Cause Analysis of Transverse Leakage Reactance of Power Transformer

pole mounted transformer In concentric windings, for many reasons, such as voltage regulation or design, etc., may cause the actual height of the low or high voltage windings to return, specifically, whether low or high voltage or medium voltage Windings, their different levels of voltage required by the insulation level will be different, in order to ensure that the transformer in all aspects to achieve the best condition, we must be local conditions, targeted design and production, so to ensure its accuracy. Therefore, in practice, the transformer is generally not possible at the same height on the different voltage transformer winding turns are equal, then the excess number of turns to produce transverse flux, and these transverse flux in the concentric winding In the formation of lateral leakage reactance. Transverse leakage reactance is different from the Amorphous Metal Distribution Transformer winding corresponding to the number of ampere turns of the difference, that is, unbalanced ampere turns produced, the smaller the number of unbalanced turns, then the lateral leakage reactance is also smaller, if the number of turns To achieve a fully balanced state, then no lateral leakage reactance will be produced. Finally, we calculated by the formula, you can get all the short-circuit transformer reactance value, we can according to the results obtained to determine the transformer reactance value is not in line with national standards or international standards.