500kV紧凑型输电线路技术应用研究

Research on application of 500 kV compact power transmission lines technology

紧凑型输电技术是我国近十几年迅速发展和应用的一项新技术,500k V紧凑型输电线路与常规线路相比,提高自然输送功率34%,压缩线路走廊宽度17.0m,线路下超过场强4k V/m的宽度减少了2/3,并具有常规线路相同的绝缘强度和导线表面电场强度,可带电作业。同时介绍了紧凑型输电技术的研究历程,推广应用的经济效益、社会效益和近期我国500k V紧凑型输电线路建设的基本概况。

The compact power transmission technology is a new technology, which has been developed and rapidly applied in our country in recent ten years. Compared with the conventional line, the 500 k V compact transmission line can improve the natural transmission power up to 34%, can compress the line corridor width up to 17.0 m, can reduce the width under the line with field intensity over 4 k V/m up to two-thirds, and it has the same insulation strength and the same lead surface electric field intensity as the conventional line, and also can be charged operation. The research course, the popularization and application, the economic benefit and the social benefit of the compact transmission technology as well as the recent basic situation of the 500 k V compact transmission line construction in China are presented.