Gas-filled, three-electrode overvoltage surge arrester for large

Details Gas-filled, three-electrode overvoltage surge arrester for large Gas-filled, three-electrode overvoltage surge arrester for large

1995-10-13

1997-05-27

Gaffin, Jeffrey A.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Capacitor protection

361120, H02H 100

Patent

active

056337779

ABSTRACT:
To adapt a three-electrode arrester having copper electrodes to high switching capacities (200 Amp a.c. current per discharge gap simultaneously for 11 cycles at 60 Hz), the following measures are provided: The cylindrical end electrodes have a volume of at least 60 mm.sup.3, given a ratio of length (L.sub.2) to diameter (D.sub.2) of less than 2.5; the middle electrode has the shape of a hollow cylinder with end regions of a reduced wall thickness; the middle electrode and the hollow cylindrical insulators are soldered to one another at the front ends.

REFERENCES:
patent: 3254179 (1966-05-01), Howard
patent: 3289027 (1966-11-01), Jones
patent: 3885203 (1975-05-01), Baker et al.
patent: 4062054 (1977-12-01), Simokat
patent: 4212047 (1980-07-01), Napiorkowski
patent: 4433354 (1984-02-01), Lange et al.
patent: 4769736 (1988-09-01), Boy

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