750kV输变电示范工程设计特点  

Design characteristics of 750 kV transmission and transformation pilot project

作　　者：李志刚[1] 杨林[1] 项力恒[1] 张小力[1] 郎旭海[1] 

机构地区：[1]西北电力设计院电网工程设计分公司,陕西西安710032

出　　处：《中国电力》2005年第12期6-11,共6页Electric Power

摘　　要：750kV输变电示范工程是我国第1个750kV超高压输变电工程,并且具有高海拔、重污秽、多风沙的环境特点,工程设计难度大。重点介绍了750kV输变电示范工程的主要设计特点:750kV线路工程采用地质遥感技术和海拉瓦选线技术优化路径方案,采用了六分裂导线、扩径导线、大吨位绝缘子、刚性跳线和高强钢杆塔等先进技术;750kV变电工程中合理确定空气间隙,选用安全可靠、技术先进和经济合理的简化GIS设备,采用计算机监控系统和设备状态在线检测装置提高变电站自动化水平,钢管格构式变电构架结构新颖。750kV输变电示范工程是我国自主设计完成的,具有先进的技术水平。The pilot project of 750 kV transmission and transformation is the first one of EHV 750 kV transmission and transformation in China. The design for this project is very difficult in the inclement environment with higher altitude, serious defilement and sand blown by wind. The main characteristics of the project design were introduced, which included optimizing transmission line route with geologic remote sensing technique and HAILAWA technique; adopting the advanced techniques such as 6 split wires, expanded diameter ACSR, 420 kN insulator, rigid jump line and excellent steel tower; defining reasonably the air gap in 750 kV transmission and transformation project; choosing simple GIS equipment with safety and reliability, advanced technology and reasonable economy; adopting computer supervisory system and equipment condition online monitoring to improve substation automation level; adopting new structure of structural frame for power transformation. The pilot project of 750 kV transmission and transformation is the independent design completion in China, which has the advanced technology level.

关 键 词：750kV 输变电 工程 设计特点 

分 类 号：TM723[电气工程—电力系统及自动化]