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:
May. 31, 2011
Filed:
Nov. 21, 2005
Ulrich Höhn, Hollstadt/Junkershausen, DE;
Ulrich Höhn, Hollstadt/Junkershausen, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
The invention relates to a method for variation of a rated current which is specific of a motor by providing a rated current basic value signal () depending on a rated current basic value of the motor I, and by detecting an actual temperature T, providing a corresponding temperature signal (), determining an actual rated current Idepending on the rated current basic value signal () and the temperature signal (), and providing a corresponding rated current signal (). Additionally, the inventive method allows to determine the actual rated current depending on the speed of the motor. The invention also relates to a device for varying the rated current of a motor depending on a temperature and optionally depending on a speed of the motor. The inventive device can be used in a measuring system for determining the utilization rate and for monitoring the temperature of a motor.