西北750 kV输变电示范工程设计中新技术的应用

重点介绍了750 kV输变电示范工程设计中采用的新技术:750 kV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6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。

Application of Novel Technology in Design of 750 kV Transmission and Transformation Demonstration Project

The demonstration project of 750 kV transmission and transformation is the first EHV 750 kV project in China.The design for this project is difficult in the inclement environment with higher altitude,serious defilement and sand blown by wind.The novel technology applied in the project design is introduced,which includes optimized transmission line route with geologic remote sensing technique and HAILAWA technique,adopting the advanced technology such as 6 split wires,expended diameter ACSR,420 kN insulator,rigid jump line and high strength steel tower,defining reasonably the air gap in 750 kV transformation project,choosing simple GIS equipment with safety and reliability,advanced technology and reasonable economy;adopting computer supervision system and equipment condition online monitoring system to improve substation automation level,adopting new structure frame for power transformation.The demonstration project of 750 kV transmission and transformation is the independent design completion in China,which has the advanced technology level.