Electric motor repair has the potential to impact future motor life, energy efficiency and the environmental impact of the machine (electric motor, to be used interchangeably in this paper) even when meeting modern motor repair standards. In this paper we shall outline the impact of repair following repair standards versus traditional repair and relate both scenarios to Precision Motor Repair (PMR), or Reliability-Centered Motor Repair Practices (RCMRP). The outline of impacts will be based upon the allowable limits by standards, observations following traditional practices, the impacts measured through PMR, based upon three similar machines in which an IEEE 112 Method B (segregated loss) was performed. These evaluations will be based upon expectations of impact to new core steels in premium and energy efficient machines.
For more information, download the complete paper at http://www.motordiagnostics.com in the paper archives.
Sunday, June 13, 2010
Free Infraspection Institute Electrical and Motor Standard
Jim Seffrin of the Infraspection Institute has provided us the latest version of the “Standard for Infrared Inspection of Electrical Systems and Rotating Equipment,” with permission for SUCCESS by DESIGN to make available through the archive section of http://www.motordiagnostics.com (a $25 value).
For those wishing to purchase a copy of this standard or others published by the Infraspection Institute, the link is – http://store03.prostores.com/servlet/infraspectionstore/the-Infraspection-Standards/Categories
For those wishing to purchase a copy of this standard or others published by the Infraspection Institute, the link is – http://store03.prostores.com/servlet/infraspectionstore/the-Infraspection-Standards/Categories
Comparing IEEE 112 Method B to MotorMaster Plus
Abstract: The present version of the US Department of Energy’s MotorMaster Plus (MMPlus) software was released in 1995 with modifications related to reliability funded by Dreisilker Electric Motors, Inc., ALL-TEST Pro, and Pruftechnic, in 2000. In 1999, a study by the Washington State Energy Extension Center determined that the efficiency results from MMPlus were roughly equivalent to IEEE Std 112 Method B testing, the requirement by the Energy Policy Act of 1992 (EPAct ’92). In this paper we will compare the findings of three of the same model number and manufacturer motors via IEEE Std 112 Method B to the findings of MMPlus and our independent observations.
For more information, download the complete paper at http://www.motordiagnostics.com in the paper archives.
For more information, download the complete paper at http://www.motordiagnostics.com in the paper archives.
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