摘要
Abstract
27. 5kV cable is the important power supply equipment in traction power supply system, and its performance is directly related to the effect of traction power supply system on traffic capacity. To choose the protector of cable sheath reasonably, based on analysis for application situation and grounding method of 27. 5kV cable, this paper suggests that: the actual situation of insulation levels of outer cable sheath which decline over time should be fully considered; and the interactions and constraint factors among various parameters should also be considered comprehensively in combination with the rated voltage, operating voltage, residual voltage and other key technical parameters of the protector.关键词
27.5kV电缆/护层保护器/感应电压/动作电压/残压Key words
27. 5kV cable/ protector of cable sheath/ induced voltage/ operating voltage/ residual voltage分类
交通工程
