Y,y_(n0)型与D,y_(n11)型配电变压器零序电流比较分析

Comparative analysis on zero-sequence current of Y,y_(no) and D,y_(n11) transformers

通过对Y ,yn0 型和D ,yn11型变压器内零序电流造成不同影响的比较分析 ,阐述了D ,yn11接线变压器供电质量高 ,承担负载能力强 ,有利于切断单相接地短路故障的特点 ,并呼吁建筑设计施工中推广使用D 。

Based upon comparative analysis on the different influences caused by Y,y no connection and D,y n11 connection the advantages of D,y n11 connection symbol are introduced, which can provide high quality for power supply with high load capacity and is superior in dealing with single-phase ground fault. In the end author appeal the D,y n11 transformer be popularized in the future building design and construction.