Gas-disccharge overvoltage arrester

Details Gas-disccharge overvoltage arrester Gas-disccharge overvoltage arrester

1993-09-28

1995-02-07

DeBoer, Todd E.

Electricity: electrical systems and devices

Safety and protection of systems and devices

High voltage dissipation

361124, 361119, H02H 104

Patent

active

053880234

ABSTRACT:
A gas-filled three-electrode overvoltage arrester may be developed in such a manner that it has dependable "fail-safe" and "vent-safe" behavior. For this purpose, a two-arm spring clip (10) is fastened to the center electrode (1). The ends of the two-arm spring clip (10) rest, with the interpositioning of a spacer (20, 21; 22, 23), against the ends of the end electrodes (2, 3). The end of each arm of the spring clip bears a cap (14, 15) which is provided with a flange-like edge (16, 17). One end of the connecting wire (6, 7) of each end electrode has the shape of a ring (61, 71) which is fastened at the end side to the end electrode. The ring of the connecting wire and the flange-like edge of the cap are opposite each other and are held apart by a disk-shaped fusible pellet (20, 22) and a cylindrical part (21, 23) having insulating properties. The cylindrical part consists either of a temperature-resistant insulating material or of a metal-oxide varistor.

REFERENCES:
patent: 3905006 (1975-09-01), Matsuoka et al.
patent: 4317101 (1982-02-01), Ellis et al.
patent: 4366412 (1982-12-01), Lange et al.
patent: 4912592 (1990-03-01), Flindall et al.
patent: 4984125 (1991-01-01), Uwano
patent: 5027100 (1991-06-01), Neuuirth et al.
patent: 5282109 (1994-01-01), Smith
patent: 5313183 (1994-05-01), Kasahara

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