750kV敞开式配电装置导线选型研究

针对750 kV敞开式配电装置导线选型的适应性和经济性问题,综合分析了载流量、电晕、无线电干扰、可听噪声以及导线对配电装置的影响,从节约工程投资角度考虑,提出了既满足电气性能又具有良好经济性的选型方案。分析结果表明:750 kV敞开式配电装置安装在海拔1 000 m及以下时,宜选用双分裂导线;安装在海拔1 000 m以上时,可选用四分裂导线。

Conductor type selection of 750 kV air insulated switchgear

Aiming at the problems of adaptability and economy for conductor type selection of 750 kVair insulated switchgear, analyzes synthetically influence of current carrying capacity, corona, radiointerference, audible noise and conductor on air insulated switchgear, from point of view of savingproject investment, puts forward the conductor type selection scheme which both satisfies electricalperformance and has better economy. The analysis result shows that either altitude 1 000 m below,may select twin bundle conductor, or altitude 1 000 m above, may select quad bundle conductor for750 kV air insulated switchgear.