Gas tube surge protector with interacting varistors

Details Gas tube surge protector with interacting varistors Gas tube surge protector with interacting varistors

1997-06-24

1999-03-09

Gaffin, Jeffrey

Electricity: electrical systems and devices

Safety and protection of systems and devices

High voltage dissipation

361 56, 361120, 361127, H02H 100

Patent

active

058809198

ABSTRACT:
A surge protector is provided that has a gas tube and at least one MOV that is coordinated with the gas tube such that the MOV interacts with the gas tube to lower the impulse breakdown voltage of a gas tube of a type that has a wide range of DC breakdown voltages across a population of the gas tubes. The gas tube is a generally cylindrical three element gas tube and the MOVs are disposed at opposite ends of the gas with fusible elements maintained in position by a clip. A population of the gas tubes has a range of breakdown voltages and the clamping voltage of the MOVs is set within this range such that the MOV will interact with any gas tube with a breakdown voltage in the population range to divert a surge to ground.

REFERENCES:
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patent: 4584622 (1986-04-01), Crosby et al.
patent: 4628394 (1986-12-01), Crosby et al.
patent: 4876713 (1989-10-01), Crosby et al.
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patent: 4944003 (1990-07-01), Meyerhoefer et al.
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patent: 5383085 (1995-01-01), Boy et al.
patent: 5388023 (1995-02-01), Boy et al.
patent: 5410596 (1995-04-01), Shannon et al.
patent: 5500782 (1996-03-01), Oertel et al.

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