一、概述目前，我国电气化铁路发展越来越迅速，电力机车运行交路已跨越不同分局、不同供电段，而目前使用的电力机车电度表不能分别计量出各段用电量，从而造成各供电段用电量难以合理计算。为了进一步完善供电管理，并提高司机对机车的操纵水平，需要研制一种新型分段计量电 I. Overview At present, the development of electrified railway in our country is more and more rapid. The operation of electric locomotive has crossed different branches and different power supply sections. However, the electric locomotive meters currently used can not separately measure the electricity consumption of each section, resulting in Power segment is difficult to calculate the amount of electricity. In order to further improve the power supply management, and improve the driver’s level of operation of the locomotive, the need to develop a new type of sub-metering electricity