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:
Nov. 03, 2015
Filed:
Jul. 21, 2010
James Donaldson, Oxford, GB;
Sarah Surrall, Oxford, GB;
Alexander Matthews, Oxford, GB;
Malcolm Mcculloch, Oxford, GB;
James Donaldson, Oxford, GB;
Sarah Surrall, Oxford, GB;
Alexander Matthews, Oxford, GB;
Malcolm McCulloch, Oxford, GB;
INTELLIGENT SUSTAINABLE ENERGY LIMITED, Oxford, GB;
Abstract
A method of identifying the operation of an electrical appliance comprising an induction motor is described. The method comprises identifying the operation of an electrical appliance including an induction motor when a path traced by real power values against corresponding reactive power values over a time period of interest comprises one or more substantially circular arcs. The real power values are related to the total real power supplied to one or more electrical appliances as a function of time, and the reactive power values are related to the total reactive power supplied to the one or more electrical appliances as a function of time. There is also described a related method of identifying the operation of a specified type of appliance, in which the operation of said specified type of appliance is dependent on a supply of at least one utility such as electricity, natural gas or water.