摘要
针对同相供电设备继电保护的需要,研究同相供电设备继电保护方案。同相供电系统是在异相牵引供电系统结构上引入同相供电设备构成的。由于同相供电设备的存在,牵引变电所主接线结构将发生变化,现有的保护对同相供电系统是否适用,以及如何实现同相供电设备的保护需要分析和研究。本文介绍同相供电系统试运行方案,讨论同相供电设备接入对原有变压器保护和馈线保护的影响,提出针对同相供电设备的保护方案,并讨论整定计算原则和需要注意的问题。本文提出的保护方案于2010年10月已在成昆线某变电所投入试运行,投运前的试验和投运后2年多的试运行结果证明了所提方案的正确性。
The relaying protection scheme for cophase supply equipment was studied in view of the related rela- ying protection requirements. The cophase power supply system was constructed by introducing cophase supply equipment into the outphase power supply system structure. Integration of the cophase supply equipment changed the structure of the main wiring of traction substation. Compatibility of pre-existing protective relays and realization of protection of the cophase supply equipment were analyzed. The test run scheme of the cophase power supply system was introduced. The influence of the eophase supply equipment on pre-existing feeder re- lays and transformer relays was discussed. A set of protection schemes for the cophase supply equipment were put forward. The principles of setting calculation and issues needing to be noticed were described. The proposed protection scheme was put into trial use in a traction substation of the Chengdu-Kunming Line. The results of commissioning tests and post operation show the validity of the proposed protection scheme.
出处
《铁道学报》
EI
CAS
CSCD
北大核心
2013年第2期21-25,共5页
Journal of the China Railway Society
基金
国家自然科学基金(50907055)
铁道部重点课题(20115023-c)
四川省科技支撑计划(2011GZ0079)
中央高校基本科研业务费专项资金(SWJTU12CX028)
关键词
同相供电系统
同相供电设备
保护方案
馈线保护
变压器保护
cophase power supply system
eophase supply equipment
protection scheme
feeder relaying
transformer relaying
