Protection system for electric circuits

Details Protection system for electric circuits Protection system for electric circuits

1992-04-09

1994-06-21

Pellinen, A. D.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific quantity comparison means

361 93, 361115, H01H 7500, H02H 600

Patent

active

053232887

ABSTRACT:
This invention concerns a system for the protection of electric circuits (60, 61, 62) which permits an analysis in real time of the evolution of electric currents circulating in such electric circuits, such analysis having as its purpose not only protection but also prevention. Such protection system comprises at least one circuit breaker (64, 66) including a first coil (70, 71) associated with a magnetic circuit and bearing the main current, as well as a second coil (74, 75) likewise associated with the magnetic circuit. Such second coil carries an induced current representative of the main electric current. Such induced current is processed by an electronic circuit (80) which supplies a processed signal representative of at least one characteristic of the main current, said characteristic being used for prevention in the electric circuits.

REFERENCES:
patent: 4325041 (1982-04-01), Murai
patent: 4935715 (1990-06-01), Popeck
patent: 5019956 (1991-05-01), Nakayama
French Search Report.

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