公开(公告)号：EP4242053A1

公开(公告)日：2023-09-13

申请号：EP21888028.4

申请日：2021-03-24

申请人： CRRC Qingdao Sifang Co., Ltd.

发明人： JIANG, Xin ,  XU, Wantao ,  WANG, Tianyu ,  WU, Cong ,  HOU, Xiaoqiang

IPC分类号： B60M3/00

摘要： Embodiments of the present application provide a high-voltage system for train and a train, wherein the high-voltage system for train includes: two high-voltage power supply units and one connection power supply unit; each of the high-voltage power supply units includes a pantograph, a main circuit breaker and a first traction transformer; the pantograph is connected to the first traction transformer through the main circuit breaker; the connection power supply unit includes a first high-voltage isolation switch and a second traction transformer; wherein the first high-voltage isolation switch is a three-point high-voltage isolation switch; one port of the first high-voltage isolation switch is connected to a primary side of the second traction transformer; two other ports of the first high-voltage isolation switch are respectively connected to primary sides of the first traction transformers in the two high-voltage power supply units. By connecting the three-point high-voltage isolation switch, the ability to supply power to three transformers is provided, different high-voltage power supply units may be switched and isolated, the normal operation of the train is guaranteed, and the safety and reliability of the train's operation are improved.