Electrical equipment protective apparatus with energy balancing

Details Electrical equipment protective apparatus with energy balancing Electrical equipment protective apparatus with energy balancing

1981-06-03

1982-08-31

Eisenzopf, Reinhard J.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Capacitor protection

361 9, H02H 716

Patent

active

043475396

ABSTRACT:
Electrical equipment protection apparatus is provided comprising a plurality of varistor devices connected mutually in parallel, each of which exhibits a non-linear characteristic with an inherent differential in such characteristics, in combination with current sharing elements comprising a plurality of positive temperature coefficient resistors respectively associated with each of the non-linear resistors to ensure substantially equal current sharing among the plurality of varistors.

REFERENCES:
patent: 3246206 (1966-04-01), Chowdhuri
patent: 3254290 (1966-05-01), Miller et al.
patent: 3518489 (1970-06-01), Musham
patent: 3566197 (1971-02-01), Nilsson
patent: 3662250 (1972-05-01), Piccone
patent: 3894274 (1975-07-01), Rosenberry, Jr.
patent: 3947726 (1976-03-01), DeCecco et al.
patent: 4023071 (1977-05-01), Fussell
patent: 4051545 (1977-09-01), Kloss
patent: 4068281 (1978-01-01), Harnden, Jr.
patent: 4152743 (1979-05-01), Comstock

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