Yd11接线变压器单相缺相故障分析

Analysis of Single-phase-missing Fault of Yd11 Connection Transformer

利用对称分量法,对Yd11接线变压器单相缺相进行了理想情况下的理论推导,得出了单相缺相故障时变压器一、二次侧线电压的理论值,并通过搭建MATLABSimulink仿真电路,进一步验证了理论推导的正确性,为Yd11接线变压器单相缺相故障判断提供了一定的参考依据。

Using the symmetrical component method,the theoretical derivation of the single-phase-mission fault of the Yd11 connection transformer under ideal conditions was carried out,and the theoretical value of the voltage on the primary and secondary sides of the transformer in the single-phase-mission fault was obtained.By building a MATLABSimulink simulation circuit,the correctness of the theoretical derivation was further verified,and a certain reference basis was provided for the judgment of the single-phase-mission fault of the Yd11 wiring transformer.