节能防腐型低风压导线在大风区输电线路的应用探讨

Application Discussion on Energy-Saving and Anti-corrosion Type Low Wind-PressureConductor in The Transmission Lines in Strong Wind Areas

大风区输电线路常选用节能防腐型低风压导线,以确保输电线路安全稳定运行,降低输电线路电能损耗。以位于内蒙古大风区的满洲里至海北500 kV工程为例,针对导线的电气性能、机械性能、经济性等,对同规格钢芯铝绞线、节能防腐型低风压导线进行比较和分析。研究发现,节能防腐型低风压导线具有优异的输送能力和节能效果,在大风条件下,可有效降低线路风压、杆塔荷载,具有优异的耐腐蚀性能,经济效益较高。

The use of energy-saving anticorrosive conductor is a solution that can guarantee the safe and stable operation of transmission line in high wind area and reduce the power loss of transmission line.Taking Manzhouli-Haibei 500 kV transmission line project in the strong wind area in Nei Monggol Autonomous Region as an example,the comparison and analysis of aluminum conductor steel reinforced and energy-saving anticorrosive low wind-pressure conductor with the same specifications were carried out in the aspects of electrical performance,mechanical performance and economy.It showed that the use of energy-saving anticorrosive low wind-pressure conductor improved transmission capacity and energy saving effect.In strong wind condition,it can effectively reduce the wind pressure and tower load of the line and improve corrosion resistance.The annual cost of the project is lower and the economic benefit is obvious.