YN／V平衡变压器的内部阻抗约束关系及其等值电路

THE IMPEDANCE CONSTRAINT RELATIONS OF YN/V TRANSFORMER AND ITS EQUIVALENT CIRCUIT

根据基本电路原理和多绕组变压器的理论，分析并推导出ＹＮ／Ｖ平衡变压器实现其平衡功能的阻抗约束关系，表达这种关系的阻抗都是通常意义上的变压器短路阻抗，因而其物理意义明确，易于理解和应用。在此基础上，构造了ＹＮ／Ｖ平衡变压器的等值电路，它特别方便工程应用和分析。

ased on the basic electric circuit principle and the theory of the multi-coiled transformer, the impedance constraint relations by which balance function can be realized inYN/V transformer is analyzed and derived in this paper.The impedance expressed by aboverelations has the general meaning of the transformer short-circuit impedance ,so that it iseasy to be understand and to be applied.On above basis,the author have designed the equivalent circuit of YN/V balanced transformer which is convenient for engineering applicationand analysis.