铁道标准设计2016，Vol.60Issue(5)：144-148,5.DOI:10.13238/j.issn.1004-2954.2016.05.032
铁路电力与信号设备供电匹配性分析
Matching Analysis of Railway Power Supply and Signal Equipments
摘要
Abstract
Because of the switch current setting mismatching between signal power panel and power distribution box, circuit breaker override trip happens when accident occurs. The analysis of the signal load characteristics and the load current calculation processes employed by signal and electric power specialties indicates the differences in standard and coefficient value used by the two specialties. The calculation result from the electric power specialty is closer to the reality, while that from the signal specialty is comparatively larger, which may lead to current setting mismatch. With the analysis of switch protection characteristics, a new power distribution method is proposed. If the signal load is a lower proportion to the capacity of the transformer, the switch of power distribution box is of isolation type, and selective protection is used for power panel inlet switch and substation switch. If the signal load is a higher proportion to the capacity of the transformer, remote control is engaged for power supply to allow rapid recovery from power failure. This method is already adopted in many projects.关键词
铁路信号/供电/信号电源屏/开关电流/匹配Key words
Railway signal/Power supply/Signal power panel/Switch current/Matching分类
交通工程引用本文复制引用
徐凯..铁路电力与信号设备供电匹配性分析[J].铁道标准设计,2016,60(5):144-148,5.基金项目
铁道第三勘察设计院集团有限公司科研项目(740928) （740928）
