长昆客运专线牵引变电所的主接线与变压器设计

Main Wiring and Transformer Design for Traction Substation of Changsha-Kunming Passenger Dedicated Line

介绍了长昆客运专线牵引变电所的主接线方式,牵引变压器的选择并对其容量进行了计算,确定并校验了牵引变压器设备;设计了220 kV侧主接线和55 kV馈线侧主接线;最后选择并校验断路器、隔离开关、互感器和导线等电气设备。本文确定的主接线方式、变压器结构和供电形式,能有效提高长昆客运专线供电的稳定性和安全性。

This paper introduces the main connection mode and the selection of traction transformer for Changsha-Kunming passenger dedicated line, calculates the transformer capacity and checks the traction transformer equipment. Then it designs the main connection of 220 kV section and 55 kV feeder line section. Finally, it selects and checks electrical equipment such as circuit breaker, disconnecting switch, mutual inductor and wire. The main connection mode, transformer structure and pow- er supply mode can effectively improve the stability and security of power supply.