Common neutral for load-side separately-derived transfer switch

Details Common neutral for load-side separately-derived transfer switch Common neutral for load-side separately-derived transfer switch

2008-03-28

2010-06-15

DeBeradinis, Robert L. (Department: 2836)

Electrical transmission or interconnection systems

Plural supply circuits or sources

Substitute or emergency source

Reexamination Certificate

active

07737579

ABSTRACT:
A separately-derived, load-side transfer switch connected to the neutral leads of a load center in a single and switchable connection, which allows for connection and disconnection of the load center neutrals to a primary or an auxiliary power source in a single manual operation.

REFERENCES:
patent: 3936782 (1976-02-01), Moakler et al.
patent: 4021678 (1977-05-01), Moakler et al.
patent: 5070252 (1991-12-01), Castenschiold et al.
patent: 7462791 (2008-12-01), Flegel
patent: 2006/0138868 (2006-06-01), Wareham et al.

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