Voltage surge arrester with capacitive grading and improved spar

Details Voltage surge arrester with capacitive grading and improved spar Voltage surge arrester with capacitive grading and improved spar

1975-03-17

1977-01-18

Shoop, William M.

317 68, H02H 322

Patent

active

040041930

ABSTRACT:
The arrester includes a plurality of gap units and nonlinear resistance valve units connected in series between the line voltage and ground. A series line of capacitors across the gap units provides capacitive grading for fast high frequency impulses. A series line of resistors across the gap units provides resistive grading for slow, low frequency impulses. The gap units comprise control gap units for controlling the initial sparkover of the arrester and cascade gap units. The control gap units all have substantially equal sparkover voltages for slow impulses. The improvement comrises that there is connected across at least one of the control gap units and in series with the series line of capacitors, a linear upset resistor having a resistance chosen so that the time constant of the resistor and capacitive grading line is about 0.25 microseconds.

REFERENCES:
patent: 3348100 (1967-10-01), Kresge
patent: 3418530 (1968-12-01), Cheever
patent: 3510726 (1970-05-01), Harder
patent: 3518492 (1970-06-01), Kresge et al.
patent: 3611044 (1971-10-01), Osterhout et al.
patent: 3683234 (1972-08-01), Rodewald

Affiliated with

Also associated with

Rating

Voltage surge arrester with capacitive grading and improved spar does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Voltage surge arrester with capacitive grading and improved spar, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Voltage surge arrester with capacitive grading and improved spar will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-74655