Device for supplying an electronic protection device to be...

Details Device for supplying an electronic protection device to be... Device for supplying an electronic protection device to be...

2006-12-05

2006-12-05

Barrera, Ramon M. (Department: 2832)

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Tripping means

C335S006000, C335S008000, C335S018000, C335S172000

Reexamination Certificate

active

07145421

ABSTRACT:
A supply device (1) for an electronic protection device to be used in a low-voltage circuit breaker. The supply device basically comprises a primary conductor (11), a secondary winding (12), a first magnetic circuit (10), and at least one second magnetic circuit (20). The first magnetic circuit (10) is such as to surround said primary conductor (11), which is related to a phase protected by the protection device; at the same time, the first magnetic circuit (10) constitutes the core of said secondary winding (12) that is used for supply of the protection device. The second magnetic circuit (20) is structurally separated from the first magnetic circuit (10), but is operatively connected thereto for subtracting part of the first magnetic flux generated within it by the current circulating in the primary conductor (11).

REFERENCES:
patent: 4037183 (1977-07-01), Gaskill
patent: 5382896 (1995-01-01), Schueller et al.
patent: 6801421 (2004-10-01), Sasse et al.
patent: 2003/0030528 (2003-02-01), Attarian et al.
patent: 2004/0136125 (2004-07-01), Nemir et al.

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