500 kV地下变电站主变压器扩容工程新老设备衔接工作难点分析

Analysis of Difficulties in Connecting the Old and New Equipments in the Main Transformer Expansion Project of 5o0 kV Underground Substation

与常规变电站相比,500 kV全地下变电站主变压器扩容改造时所面临的问题更为复杂。某500 kV变电站在3号、6号主变压器扩建工程中遇到多项新老设备、系统衔接问题,重点对改造时对接工作中相关安全措施和运维方法进行了分析,保证了已投运设备安全运行的同时高质量地完成了新设备的接入。

Compared with the conventional substation,the problems faced by the expansion and transformation of the main transformer in 500 kV underground substation were more complex.A lot of new and old equipment and system connection difficulties were encountered in the expansion project of No.3 and No.6 main transformer of a 500 kV substation.This research focused on the analysis of relevant safety measures and operation and maintenance methods in the connection work during the transformation,to ensure the safe operation of the equipment and thehigh-quality access of the new equipment.