地铁直流牵引供电系统的电气保护与定值

Electrical Protection and Definite Values of DC Traction Power Supply System for Metro

阐明地铁直流牵引供电系统电气保护设置与定值的重要性,着重论述地铁电气保护设置的主要原则。以北京地铁为例,介绍其直流牵引供电系统中各种电气设备和线路的保护设置及各级定值的选择计算。

The significance of electrical protection and definite value of DC traction power supply system for metro is illustrated. The primary principles on the setting of metro electrical protection are emphasized. With Beijing metro as an example, the protec-tion setting of electrical equipment and circuit, and the selection and calculation for definite values in all levels in DC traction power supply system of metro are introduced.