电力系统保护与控制Issue(23)：143-148,6.
220 kV智能变电站检修二次安措优化研究
Study of optimization of secondary safety measures of 220 kV smart substation maintenance
摘要
Abstract
The present secondary safety measure in smart substation has low reliability due to the low safety and frequent protection blocking. On this basis, a safety measure based on interval interruption maintenance is proposed by analyzing the new function features of secondary equipment, as well as the advantage and disadvantage of the basic safety measures. The optimal scheme corresponding to the first maintenance and periodic maintenance is also determined. The secondary circuit will be cut off by disconnecting the terminal connecting piece or the cable conductor. Then the first defense line will be established by turning off the soft pressing board and breaking the digital channel. The second defense line is formed after pulling out the fiber or starting the smart substation maintenance mechanism. The first maintenances of 220 kV Sha-Ba substation and 220 kV Zha-Wo substation in Sichuan show that this scheme is simple, safe and available, which is of certain reference value for secondary safety measures in the smart substation maintenance.关键词
智能变电站/停电检修/二次系统/安全措施/数字通道/检修机制Key words
smart substation/interruption maintenance/secondary system/safety measures/digital channel/maintenance mechanism分类
信息技术与安全科学引用本文复制引用
彭少博,郑永康,周波,李小鹏..220 kV智能变电站检修二次安措优化研究[J].电力系统保护与控制,2014,(23):143-148,6.基金项目
国网四川省电力公司2014年科技项目 （）
