TY - GEN
T1 - Study on the saturation phenomena of discharge channel number of a gas spark switch gap under nanosecond trigger pulses
AU - Chang, J.
AU - Wang, H.
AU - Zhang, Q.
AU - Qiu, A.
PY - 2011
Y1 - 2011
N2 - Experimental work was carried out to study the variation of nanosecond trigger pulse amplitude on discharge channel numbers in a self-designed coaxial field distortion gas spark switch gap in N 2, SF 6-N 2 or SF 6-Ar gas mixtures. The results show that channel numbers in a unit of length of the edge of trigger electrode make a great difference among three kinds of gases (i.e. N2, SF 6-N 2 mixtures, and SF 6-Ar mixtures). In each kind of gases under a certain pressure, the difference of channel numbers in a unit of length among different mixture ratios is smaller compared with that among different kinds of gases. In view of this, one fitting curve was got based on data of channel numbers in a unit of length varying with overvoltage multiple for each kind of gases under a certain pressure despite of the difference among mixture ratios. It can be seen from these fitting curves that the channel number in a unit of length does not increase evidently and tends to saturation when applied overvoltage multiple across the switch gap exceeds 3 for N 2 and 2.5 for SF 6-N 2. However, the saturation phenomena of channel numbers in SF 6-Ar are not obvious in these experiments.
AB - Experimental work was carried out to study the variation of nanosecond trigger pulse amplitude on discharge channel numbers in a self-designed coaxial field distortion gas spark switch gap in N 2, SF 6-N 2 or SF 6-Ar gas mixtures. The results show that channel numbers in a unit of length of the edge of trigger electrode make a great difference among three kinds of gases (i.e. N2, SF 6-N 2 mixtures, and SF 6-Ar mixtures). In each kind of gases under a certain pressure, the difference of channel numbers in a unit of length among different mixture ratios is smaller compared with that among different kinds of gases. In view of this, one fitting curve was got based on data of channel numbers in a unit of length varying with overvoltage multiple for each kind of gases under a certain pressure despite of the difference among mixture ratios. It can be seen from these fitting curves that the channel number in a unit of length does not increase evidently and tends to saturation when applied overvoltage multiple across the switch gap exceeds 3 for N 2 and 2.5 for SF 6-N 2. However, the saturation phenomena of channel numbers in SF 6-Ar are not obvious in these experiments.
UR - https://www.scopus.com/pages/publications/84861412623
U2 - 10.1109/PPC.2011.6191637
DO - 10.1109/PPC.2011.6191637
M3 - 会议稿件
AN - SCOPUS:84861412623
SN - 9781457706295
T3 - Digest of Technical Papers-IEEE International Pulsed Power Conference
SP - 1032
EP - 1035
BT - IEEE Conference Record - PPC 2011, Pulsed Power Conference 2011
T2 - 18th IEEE International Pulsed Power Conference, PPC 2011
Y2 - 19 June 2011 through 23 June 2011
ER -