Electrical transmission or interconnection systems – Plural supply circuits or sources – Substitute or emergency source
Reexamination Certificate
2006-10-31
2006-10-31
Deberadinis, Robert L. (Department: 2836)
Electrical transmission or interconnection systems
Plural supply circuits or sources
Substitute or emergency source
Reexamination Certificate
active
07129599
ABSTRACT:
Dual feed power supply system provides high reliability of a dual utility feed, with minimal interruptions in power supplied to critical loads during switching, and compensation for voltage sags occurring on the primary power feed. AC input buses are connected through a transfer switching apparatus to phase lines of a distribution bus. The transfer switching apparatus has a first input terminal connected to one of the phase lines of the first input bus and a second input terminal connected to one of the phase lines of the second input bus, and an output terminal connected to one of the phase lines of the distribution bus. Input switches allow switching from one or the other of the AC input buses to the distribution bus, with a fast transfer switch used to interrupt the supply of power from the input buses to the distribution bus during switching of the input switches.
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Deepak Divan, “Power Quality and 9s.” The Huber Mills Digital Power Report. Apr. 2001. Gilder Publishing LLC.
Divan Deepakraj M.
Kranz William
Schneider Robert
Deberadinis Robert L.
Foley & Lardner LLP
Parries Dru
Soft Switching Technologies Corporation
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