Method and apparatus for the protection of electrical equipment

Details Method and apparatus for the protection of electrical equipment Method and apparatus for the protection of electrical equipment

1979-12-28

1982-05-04

Salce, Patrick R.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Load shunting by fault responsive means

361 91, 361111, 361334, 174 52R, H02H 904

Patent

active

043285236

ABSTRACT:
This invention provides a high voltage transient protection unit comprising a recoverable spark gap, an L-C filter, and a voltage variable resistor; and a method of protecting electrical equipment from damage due to a high voltage transient comprising directing any transient above a predetermined minimum voltage level through a recoverable spark gap to ground; delaying said transient for a sufficient time to allow said spark gap to fire and filtering out to ground that portion of a transient below said predetermined minimum level and above a predetermined maximum voltage level.

REFERENCES:
patent: 3129396 (1964-04-01), Germain et al.
patent: 3332000 (1967-07-01), Greening et al.
patent: 3518489 (1970-06-01), Musham
patent: 3538382 (1970-11-01), Smith, Jr.
patent: 3564386 (1971-02-01), Leonard
patent: 3660719 (1972-05-01), Grenier
patent: 3793535 (1974-02-01), Chowdhuri
patent: 4105007 (1978-08-01), Mochimaru

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