US Patent 7675720 Motor protection using accurate slip calculations
Patent 7675720 was granted and assigned to Schweitzer Engineering Laboratories on March, 2010 by the United States Patent and Trademark Office.
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Patent abstract
An accurate slip calculation for providing monitoring and protection to an electric motor. The slip calculation is made using a minimum value of stator resistance as the initial stator resistance, where the minimum value of stator resistance is the minimum value of stator resistance calculated during an initiation period of the motor. The initiation period may be a predetermined time period or a predetermined number of cycles during the motor startup. The initiation period may start after a predetermined settling time or after a predetermined condition is met.
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Patent Inventor Names
Stanley E. Zocholl0
Subhash C. Patel0
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US Patent 07675720 Motor protection using accurate slip calculations US Patent 7675720 Motor protection using accurate slip calculations
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Patent Number
076757200
Patent Number
76757200
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Current Assignee
Patent Jurisdiction
Patent Number
076757200
Date of Patent
March 9, 2010
0Patent Application Number
122082720
Date Filed
September 10, 2008
0Official Website
Patent Primary Examiner
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US Patent 07675720 Motor protection using accurate slip calculations
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07675720
Date of patent
March 9, 2010
Patent application number
12208272
Date Filed
September 10, 2008
Patent primary examiner
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