Parallel MOV surge arrester

Details Parallel MOV surge arrester Parallel MOV surge arrester

1994-07-08

1996-05-21

DeBoer, Todd

Electricity: electrical systems and devices

Safety and protection of systems and devices

High voltage dissipation

361 56, 338 21, H02H 904

Patent

active

055195644

ABSTRACT:
The invention is a MOV based surge arrester that uses MOVs manufactured from a recently patented process. These new technology MOVs are significantly more uniform in their composition, resulting in more uniform performance. The uniform performance characteristics allow MOVs to be utilized parallel more successfully, eliminating many of the previous problems encountered. Instead of attaching wires to each MOV, the MOVs are packaged by placing them between a pair of contact plates, preferably manufactured from aluminum. The pair of plates are connected together and tensioned using non-conductive nuts and bolts. This packaging significantly increases the surface area between the contact plates and the MOVs. Wiring is minimized. Also, the use of the metal plates increases the ability of a surge suppresser to remove the heat generated in severe over-voltage situations. Additional plates can be utilized to increase surge arrestor surge current capability.

REFERENCES:
patent: 4326232 (1982-04-01), Nishiwaki et al.
patent: 4875137 (1989-10-01), Rozanski et al.
patent: 5039452 (1992-08-01), Thompson et al.
patent: 5218508 (1983-06-01), Doone
patent: 5402100 (1995-03-01), Urbanek et al.

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