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Title:
UNINTERRUPTIBLE TRANSFER SWITCH
Document Type and Number:
WIPO Patent Application WO2003023799
Kind Code:
A3
Abstract:
An uninterruptible transfer switch (10) coupled to two or more power sources and a load (120), said UTS including switches and an inverter, powered through one of several sources routed through rectifiers, capable of sensing power quality of two or more power sources and automatically switching sources when the primary power source is degraded to a predetermined limit and the switching of sources occurring without appreciable power loss on the load side of the UTS.

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Inventors:
FLEMING DAVID
YARPEZESHKAN HASSAN
Application Number:
PCT/US2002/028768
Publication Date:
August 14, 2003
Filing Date:
September 09, 2002
Export Citation:
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Assignee:
QUALMAG INC (US)
International Classes:
H02J3/00; H02J9/06; (IPC1-7): H02J7/00
Foreign References:
US6051893A2000-04-18
US5801937A1998-09-01
US6023152A2000-02-08
US5642002A1997-06-24
US5343079A1994-08-30
US4743999A1988-05-10
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