Thermally stabilized metal oxide varistors

Details Thermally stabilized metal oxide varistors Thermally stabilized metal oxide varistors

1978-02-06

1979-05-08

Albritton, C. L.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Transformer protection

338 21, 361 38, H02H 704

Patent

active

041539214

ABSTRACT:
Zinc oxide varistor protective devices for vapor cooled transformers are integrally located in contact with the transformer coolant liquid to provide cooling capacity to the zinc oxide materials. The zinc oxide varistors are prevented from becoming electrically unstable by keeping the varistor operating temperature at or below the boiling point of the coolant.

REFERENCES:
patent: 2399502 (1946-04-01), Olsen
patent: 3035209 (1962-05-01), Smith, Jr.
patent: 3096496 (1963-07-01), Burrage et al.
patent: 3227983 (1966-01-01), Braun
patent: 3304529 (1907-02-01), Forwald
patent: 3313983 (1967-04-01), Mallett et al.
patent: 3450945 (1969-06-01), Wurdack

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