Electricity: electrical systems and devices – Safety and protection of systems and devices – Transient responsive
Patent
1981-07-06
1983-12-06
Salce, Patrick R.
Electricity: electrical systems and devices
Safety and protection of systems and devices
Transient responsive
361 56, 361 91, 333 12, H02H 320
Patent
active
044197110
ABSTRACT:
This invention provides a high voltage transient protection unit comprising a recoverable spark gap, an L-C filter, a voltage variable resistor and provision for specified ground connection of these elements; 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 a first grounding circuit; delaying said transient for a sufficient time to allow said spark gap to fire and filtering out through a separate grounding circuit 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: 3824431 (1974-07-01), Schlicke
patent: 4105007 (1978-08-01), Mochimaru
patent: 4242712 (1980-12-01), Doll
patent: 4328523 (1982-05-01), Seguin
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