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US 8,138,634 B2Granted
Transfer switch with arc suppression
AssigneeServer Technology, Inc.
InventorsCarrel W. Ewing, Andrew J. Cleveland, James P. Maskaly, Dennis W. McGlumphy
Life of this patent
Estimating the term…
Abstract
An automatic transfer switch for a power system receiving multiple alternating current sources and delivering multiple alternating current output is described. A transfer switch control circuit can sense a power loss in one or both AC sources. Each power supply can deliver current to drive a load but, if one of the power supplies fails, the other can supply power to drive both loads.
Claims8
An automatic transfer switch, comprising:
- a transfer switch housing;
- at least two automatic transfer switch circuits mounted in the transfer switch housing;
- a first power input penetrating the transfer switch housing and being in power supply communication with a first one of the automatic transfer switch circuits and therethrough initially a first power outlet mounted in association with the transfer switch housing, the first power outlet being power supplying connectable to a first separate electronic device;
- and
- a second power input penetrating the transfer switch housing and being in power supply communication with a second one of the automatic transfer switch circuits and therethrough initially a second power outlet mounted in association with the transfer switch housing, the second power outlet being power supplying connectable to a second separate electronic device;
- the first one of the automatic transfer switch circuits comprising:
- at least a first relay in alternately switchable power supply communication with the first power input and second power input;
- and
- a first power input sensor in power determining communication with the first power input and in relay activation communication with the first relay;
- and
- the second one of the automatic transfer switch circuits comprising:
- at least a second relay in alternately switchable power supply communication with the second power input and first power input;
- and
- a second power input sensor in power determining communication with the second power input and in relay activation communication with the second relay.
11 more elements
Dependencies are inferred from the claim text.