Surge voltage arrester with ventsafe feature

Details Surge voltage arrester with ventsafe feature Surge voltage arrester with ventsafe feature

1979-01-29

1980-12-23

Salce, Patrick R.

Electricity: electrical systems and devices

Safety and protection of systems and devices

High voltage dissipation

337 32, 337 34, 361119, 361120, H02H 322, H02H 906

Patent

active

042413745

ABSTRACT:
A surge voltage arrester assembly comprises a primary gas tube surge arrester and an air gap secondary arrester that provides surge protection should the gas tube become vented to atmosphere. The secondary arrester has the air gap defined by a rim of one of the gas tube electrodes and a metallic cup into which the gas tube is positioned. In a three element version of the invention wherein the gas tube has two line electrodes and a ground electrode, metallic cups are provided at opposite ends of the gas tube to cooperate with the ground electrode for forming secondary air gaps for each line electrodes. An O-ring and a sealing compound seals each secondary air gap against the entrance of contaminants.

REFERENCES:
patent: 3254179 (1966-05-01), Howard
patent: 3254181 (1966-05-01), Lemieux
patent: 3569786 (1971-03-01), Kunugi
patent: 3651440 (1972-03-01), Bahr et al.
patent: 3755715 (1973-08-01), Klayum et al.
patent: 3803524 (1974-04-01), Schmalz et al.
patent: 4002952 (1977-01-01), Menninga
patent: 4056840 (1977-11-01), Lundsgaard et al.
patent: 4062054 (1977-12-01), Simokat

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