Impedance Matching and Winding Manufacturing of 110kV Balance Traction Transformer for Intercity Railway
In the traction power supply system of electrified railways,V/V connected trac-tion transformers require six traction substations to achieve symmetrical commutation,which is suitable for medium and long-distance electrified railway power supply sys-tems.The three-phase side of the balanced traction transformer is completely symmetri-cal,without the need for commutation,and the negative sequence component is smaller.This article introduces and verifies the magnetic potential and impedance matching rela-tionship of each winding of the YnA type balanced traction transformer,as well as the cross winding connection scheme of the B-phase extended side coil.It develops an ef-ficient and energy-saving YnA type balanced traction transformer suitable for intercity railways.
YnA type balanced traction transformer for intercity railwayImpedance matching relationshipCross winding structure
万方数据
维普
