500kV智能变电站扩建间隔取消合并单元实践  

The practice of expansion bays in 500kV smart substation without merging units

作　　者：饶威 Rao Wei(Maintenance Branch of Jiangsu Electric Power Co.,Ltd,Changzhou,Jiangsu 213000)

机构地区：[1]江苏省电力有限公司检修分公司

出　　处：《电气技术》2019年第10期86-88,106,共4页Electrical Engineering

摘　　要：针对500kV常规互感器采样的智能变电站合并单元使用中出现的弊端,国网公司拟取消合并单元而采用直接电缆采样模式。在取消合并单元项目落地前,进行相关间隔的扩建,则直接采用取消合并单元模式。本文对这种过渡期间的混合采样模式进行了探讨,并提出了相应的运维要点。With regard to the disadvantages appeared in the operating of 500kV smart substation with conventional transformers and merging units,the State Grid Corporation of China intends to remove the merging units and plans to adopt the mode of the cable directly sampling.Before the removing merging units project is carried out,the pattern that expanding bays without merging units directly is adopted.In this paper,the mixed sampling mode during this transition period is discussed,and the corresponding operation and maintenance points are proposed.

关 键 词：智能变电站 常规互感器 直接采样 合并单元 

分 类 号：TM7[电气工程—电力系统及自动化]