200kV/100kA低抖动环轨式多通道场畸变开关
200kV/100kA low jitter ring type field distortion switch
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摘要: 研制了一种200kV/100kA环轨式场畸变开关。对该开关以Ar，N2，SF6及SF6/N2，SF6/Ar 混合气为工作介质的耐压及触发性能研究结果表明：该开关耐压最大偏差小于自击穿电击的4%；欠压比大于等于自击穿电击80%时，抖动极差小于2ns，标准方差抖动小于等于1ns；实现了多通道导通，通道数大于等于3；开关工作范围极大，在欠压比大于等于自击穿电击20%时抖动极差小于2.85ns。Abstract: This paper reported the results of the investigation of a 200kV/100kA low jtter low prefire probability ring rail field distortion switch. Its jitter was less than 2 ns when its working voltage was larger than 70% of selfbreakdown voltage. When its working voltage was greater than 85% of selfbreakdown voltage its jitter was less than 1ns if the mixture of Ar, N2 and SF6N2, SF6Ar in which the percentage of SF6 was less than 50% was used as dielectric. Its maxium derivation of selfbreakdown voltage was less than 4% of selfbreakdown voltage. It is a multichannel switch and the number of discharging channel was more than 3. The results of selfbreakdown and triggering experiments working with Ar, N2, SF6 and SF6N2, SF6Ar mixtures were introduced．
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Key words:
- ring electrode /
- delay /
- jitter /
- multi-channel /
- triggering range
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