50 



BELL SYSTEM TECHNICAL JOURNAL 





 +100 



ID 20 



MICROSECONDS 



UJ 2 - 

 a. 



< 2 



4 



10 20 



MICROSECONDS 



Fig. 5 — Initial opening and reclosure — 

 "B" transient (voltage). 



Fig. 6 — ^Initial opening and reclosure- 

 "B" transient (current). 



-300 



2 3 4 5 



MICROSECONDS 



Fig. 7 — Initial opening and reclosure — -"B" transient (voltage) rapid sweep. 



4 6 



MICROSECONDS 



Fig. 8 — Initial opening and reclosure — "B" transient (current) rapid sweep. 



+ 200 



10 20 



MICROSECONDS 



Fig. 9 — Evidence of point discharge, voltage. 



