基于户外 GIS 设备特点的330 kV 变电站主接线优化设计研究

摘要

This article analyzed the characteristics of GIS equipment's docking and pressure tests during its expansion , combined with the live example of a 330kV substation project at the northwest , carried out the optimization study of 330kV, 110kV single line diagram.The study aims to avoid the station blackout caused by the expansion of GIS equipment , significantly reduce the outage time of bus and the im-pact to 110kV-load power supply at the periphery , improve the reliability of system's power supply, and try to achieve a plan with techni-cal and economical optimization .%本文通过分析GIS设备扩建时对接和耐压试验的特点，结合西北某330 kV变电站工程实际，对330 kV、110 kV接线进行优化研究，旨在避免因GIS设备扩建造成全站停电，且减少扩建时部分母线的停电时间及其对周边110 kV负荷供电造成的影响，提高系统的供电可靠性，力求优化后的方案不仅在技术上、而且在经济性上也更优。