Connection symbol : yyn0 or dyn11 as customers requirement 联结组别： yyn0或dyn11或按用户要求
2.
Connection symbol : yyno or dyn11 as customers requirement 联结组标号: yyn0或dyn11或按用户要求
3.
The simulation models of balance traction transformer with two connection symbols are established . the operating state of transformer with symmetric and unsymmetric loads in secondary side is analyzed 摘要构建了两种联结平衡牵引变压器的仿真模型，分析了二次侧对称和非对称负载时变压器的运行状态。
