Electricity: circuit makers and breakers – Liquid contact – Time delay
Patent
1982-06-07
1984-02-28
Goldberg, E. A.
Electricity: circuit makers and breakers
Liquid contact
Time delay
200148A, 200148D, H01H 3316
Patent
active
044343337
ABSTRACT:
A circuit breaker having main contacts in parallel with resistive contacts. Upon closing, the resistive contacts close before the main contacts to suppress switching overvoltages. A resistor is positioned between the resistive contacts so that heat may be easily dissipated, thus reducing the criticality of the value and capacitor of the resistor.
REFERENCES:
patent: 2965735 (1960-12-01), Baker
patent: 2977446 (1961-03-01), Baker
patent: 3267241 (1966-08-01), Wilson
patent: 3538276 (1970-11-01), Leeds
patent: 3538277 (1970-11-01), Phillips
patent: 3538278 (1970-11-01), Rathbun
patent: 3763340 (1973-10-01), Noack
patent: 4009458 (1977-02-01), Kishi et al.
patent: 4068108 (1978-01-01), Berneryd et al.
patent: 4263490 (1981-04-01), Pham Van
patent: 4293749 (1981-10-01), Kishi et al.
Ginsburg Morris
Goldberg E. A.
Tokyo Shibaura Denki Kabushiki Kaisha
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