Contact maker-breaker

Details Contact maker-breaker Contact maker-breaker

1991-05-03

1992-10-06

Stephan, Steven L.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Superconductor protective circuits

361141, 307245, 174 154, H02H 700, H03K 1792

Patent

active

051538032

ABSTRACT:
A contact maker-breaker is disclosed in which the power contacts are associated in series with a superconducting element which is controlled by a heating element and which is structured so as to have a very high resistance following its controlled transition from the superconducting state to the normal state in response to a closing or opening order or following its intrinsic transition from the superconducting state to the normal state in response to a fault current, so that closing and opening of the power contacts takes place on the same leak current of a very low value.

REFERENCES:
patent: 3270247 (1966-08-01), Rosner
patent: 4486800 (1984-12-01), Franksen
patent: 4807084 (1989-02-01), Takechi
patent: 4910626 (1990-03-01), Collet et al.

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