The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 01, 2005
Filed:
Apr. 19, 2002
Todd M. Lathrop, Freedom, PA (US);
Bert Popovich, Carnegie, PA (US);
Ronald D. Hartzel, Butler, PA (US);
David N. Alchier, Bakerstown, PA (US);
Nathan J. Weister, Beaver Falls, PA (US);
Todd M. Lathrop, Freedom, PA (US);
Bert Popovich, Carnegie, PA (US);
Ronald D. Hartzel, Butler, PA (US);
David N. Alchier, Bakerstown, PA (US);
Nathan J. Weister, Beaver Falls, PA (US);
Eaton Corporation, Cleveland, OH (US);
Abstract
A multi-mode transfer switch selectively operates in a first operating mode in which the utility source alone is connected to the load bus, a second operating mode in which only the microturbine is connected to the load bus, and a third operating mode in which both sources are connected to the load bus in parallel. The microturbine is commanded to operate in a voltage mode when connected alone to the load bus and in a current mode when connected in parallel with the utility source. If the utility source fails while operating in parallel with the microturbine, the utility source is disconnected from the load bus and the microturbine is reconfigured in a voltage mode. The transfer controller sends a wake-up signal to the microturbine upon loss of power for starting and providing power to the load bus.