Surge arrester with overvoltage sensitive grounding switch

Details Surge arrester with overvoltage sensitive grounding switch Surge arrester with overvoltage sensitive grounding switch

1994-11-10

1996-12-10

Gaffin, Jeffrey A.

Electricity: electrical systems and devices

Safety and protection of systems and devices

High voltage dissipation

361 56, 361 91, 361111, 337190, H02H 100

Patent

active

055837344

ABSTRACT:
A surge arrester for protecting power distribution equipment from overvoltages has a varistor as the active surge-arresting element. In the event of a persistent overvoltage, an amorphous conductor electrically in series with the varistor heats up to or above a critical temperature at which its tensile strength substantially decreases. The amorphous metal conductor breaks, triggering a series of events including the closing of a switch creating a permanent short to ground, operating the network overcurrent protection to de-energize the arrester and associated protected equipment, and protecting the electrical network equipment from insulation damage and/or failure because of a sustained or permanent power frequency overvoltage condition.

REFERENCES:
patent: 3496512 (1970-02-01), Matsuoka et al.
patent: 3856513 (1974-12-01), Chen et al.
patent: 3889222 (1975-06-01), Takano et al.
patent: 4015228 (1977-03-01), Eda et al.
patent: 4142571 (1979-03-01), Narasimhan
patent: 4184984 (1980-01-01), Levinson
patent: 4263573 (1981-04-01), Melton et al.
patent: 4288833 (1981-04-01), Howell
patent: 4328523 (1982-05-01), Seguin
patent: 4370692 (1983-01-01), Wellman et al.
patent: 4414519 (1983-11-01), Anderson et al.
patent: 4434411 (1984-02-01), Anderson et al.
patent: 4551268 (1985-11-01), Eda et al.
patent: 4652964 (1987-03-01), Ziegenbein
patent: 4710847 (1987-12-01), Kortschinski et al.
patent: 4720760 (1988-01-01), Starr et al.
patent: 4739436 (1988-04-01), Stefani et al.
patent: 4740859 (1988-04-01), Little
patent: 4907119 (1990-03-01), Allina
patent: 4912589 (1990-03-01), Stolarczyk
patent: 4928199 (1990-05-01), Diaz et al.
patent: 4930039 (1990-05-01), Woodworth et al.
patent: 4973931 (1990-11-01), Herbert
patent: 5039452 (1991-08-01), Thompson et al.
patent: 5105178 (1992-04-01), Krumme
patent: 5128099 (1992-07-01), Strand et al.
patent: 5142429 (1992-08-01), Jaki
patent: 5299088 (1994-03-01), Honi et al.
patent: 5325087 (1994-06-01), Mikii
"Metglas Amorphous Magnetic Alloys," brochure by Allied Signal, Parsippany, New Jersey. No Date.
Wu et al. Philisophical Magazine B, 1990, vol. 61, No. 4, pp. 739-750.
Patent Abstracts of Japan, vol. 016, No. 567 (E-1296) (Dec. 1992) (abstract of Matsushita Electric, JP 4-217813 (Aug. 1992).
Patent Abstract of Japan, vol. 013, No. 459 (E-832) (Oct 1989) (abstract of Okaya Electric, JP 1-179,301 (Jul. 1989).
Derwent Abstract 94-360957/45 (Abstract of JP 6-282778 (1994).

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