内桥接线备用电源自投装置的改进  

The Improvement of Inside Bridge Connection Reserve Power Source Automatic Switch Device

作　　者：薛玉兰 曹成功 

机构地区：[1]砀山供电有限责任公司,安徽砀山235300 [2]铜陵供电公司,安徽铜陵244000

出　　处：《安徽电气工程职业技术学院学报》2012年第3期68-70,共3页Journal of Anhui Electrical Engineering Professional Technique College

摘　　要：备用电源自投装置广泛应用于采用双电源的变电站,以进线开关备投较为常见。对于内桥接线变电站运行方式变化,发生故障时,可能导致对备用电源自投装置动作不正常,保护装置动作后,备用电源自投装置将电源投至故障点,使电网再次受到故障冲击。本文从内桥接线完全接线方式和不完全接线方式下备用电源自投装置在主变故障时的动作情况进行分析,对备用电源自投装置进行改进,提高动作有效性,充分发挥备用电源自投装置的作用,最大程度地提高供电可靠性。Reserve power source automatic switch device is widely used in the double power substation,and incoming breaker automatic switch is more common. When the operation mode of inside bridge con- nection substation changes and a fault happens, reserve power source automatic switch device action may be abnormal, after protection action, reserve power source automatic switch device putting the power sup- ply to the failure point makes grid suffer the fault impact again. From the completely connection mode and incomplete connection mode of inside bridge connection, the action of reserve power source automatic switch device in main transformer fault is analyzed in this paper, the device is improved to enhance the effectiveness of action, giving full play to the role of the device, and improving power supply reliability.

关 键 词：桥形接线 备自投 改进 可靠性 

分 类 号：TM712[电气工程—电力系统及自动化]