Electrical transmission or interconnection systems – Plural supply circuits or sources
Reexamination Certificate
2006-08-15
2006-08-15
Sircus, Brian (Department: 2836)
Electrical transmission or interconnection systems
Plural supply circuits or sources
Reexamination Certificate
active
07091631
ABSTRACT:
A device for intrinsically safe, redundant current-voltage supply for electric loads in an explosion-proof area. The device includes at least two supply circuits for making available the current/voltage supply and a protective device for intrinsically safe current and voltage limitation of the power supplied by the supply circuits to the load in the explosion-proof area. The supply circuits are connected in parallel to one another and the protective device has at least one resistive current limiting device for intrinsic safety in parallel-active supply circuits.
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Cavallari Daniel
Jacobson & Holman PLLC
Pepperl & Fuchs GmbH
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