摘要
本文研究了多种大气污染因素对尖一板空气间隙放电电压的影响。清洁雾有助于提高空气间隙的放电电压,特别是雷电冲击放电电压;盐雾对冲击放电电压也有提高,但却使交流放电电压有所降低;固体微粒对间隙的击穿强度没有明显的影响;只要间隙中不形成连续不断的水流,高压电极上出现的水滴对闪络电压也无影响;内燃机的排气对操作波放电电压没有影响,但却使工频电压下降约20%左右。
The effects of various atmospheric contamination conditions on the breakdown voltages of rod-plane air gap were investigated. Clean fog will cause a significant increase of the breakdown voltage for AC particularly for lightning impulse voltage. Salt-water fog also cause an increase of impulse flashover voltage but a slight decrease of AC flashover voltage. No influence was observed for particle contamination in dry condition. Water drops on a H.V. electrode with various drip rates rather than a stealy flow of water do not significantly alter the flashover voltage. The exhaust fumes of internal combustion engine gave the largest reduction for AC breakdown voltage but no effect in S1 ones.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
1990年第1期37-42,共6页
High Voltage Engineering
