GIS设备在高海拔环境应用的适应性研究

Study on Adaptability of GIS Equipment in High Altitude Environment

随着西部地区、特别是西藏地区的开发,高海拔输电成为解决能源问题的关键因素。本文分析了高原地区与低海拔地区的环境特点,结合低海拔地区GIS设备应用情况,对高海拔地区GIS应用要点进行研究。本文主要研究了绝缘、温升以及紫外线防护几部分。由于随着海拔的增高大气压压力也将降低,气压的降低将会对空气绝缘产生影响,结合现有GIS外绝缘情况,完成高海拔套管及二次元件的设计,并通过了相关试验。通过对空气密度降低及环境温度变化的理论分析,得到了海拔升高对设备温升影响较小的结论。考虑高海拔地区的高紫外线情况,通过对面漆分子构成情况的分析,选取了氟碳漆对高海拔地区GIS表面进行防护,并组织了相关试验,确认了氟碳漆的抗紫外线性能。本文通过对这些课题的研讨,为今后GIS设备在高海拔工况下的安全运行提供了设计经验。

With the development of the western region,especially in Tibet,high-altitude power transmission has become a key factor to solve the energy problem.This paper analyzes the environmental characteristics of plateau and low altitude areas,and studies the key points of GIS application in high altitude areas based on the application of GIS equipment in low altitude areas.This paper mainly studies the insulation,temperature rise and ultraviolet protection.As the altitude increases,the atmospheric pressure will also decrease,which will have an impact on the air insulation.Combined with the existing GIS external insulation situation,the design of high-altitude casing and secondary components is completed,and the relevant tests have been passed.Through the theoretical analysis of air density decrease and environmental temperature change,it is concluded that the elevation increase has little effect on the temperature rise of equipment.Considering the high ultraviolet radiation in the high altitude area,fluorocarbon paint was selected to protect the GIS surface in the high altitude area through the analysis of the molecular composition of the surface paint,and relevant tests were organized to confirm the anti-ultraviolet performance of fluorocarbon paint.Through the discussion of these topics,this paper provides design experience for the safe operation of GIS equipment at high altitude in the future.