快速切换装置在大型企业多电源供电系统中的应用

摘要

随着大型企业机组容量的不断增加以及设备对电能的敏感性不断提高,企业对电能质量的要求也越来越高,而企业电网经常会由于某些原因出现晃电等现象,造成企业负荷短时断电从而影响生产的连续性.本文首先提出了大型企业在多电源供电系统中应用快速切换装置的必要性,然后结合石化降压站供电系统进行实例仿真分析,并对重要的保护参数进行校验,最后提出了一些提高电源切换成功率的措施.%With large enterprise unit capacity increased and equipment for electric power more sensitivity, the enterprise loads to the electric power quality request become higher, and enterprise grid often for some reason appears electricity dazzling phenomenon, cause enterprise loads short time to lose electric so as to affect the continuity of production. This paper first puts forward the large enterprise in power supply system in the necessity of application of rapid switching device, then combining with the power supply system of Tianjin petrochemical the paper does the simulation analysis, and checks the important protection parameters, and finally puts forward some measures to improve the power switching success rate.