NEMA MG 10011-2024

Power Index Calculation Procedure—Standard Rating Methodology for Motors, Power Drive Systems, and Complete Drive Modules

National Electrical Manufacturers Association , 03/26/2024

Publisher: NEMA

File Format: PDF

$45.00$90.00


This standard establishes the calculation procedure for the Motor Coalition Metric. provides a means to compare the relative energy savings of motors (both fixed and variable speed) to a standard baseline motor. For polyphase equipment, this is a premium efficient direct-on-line motor (i.e., IE3 equivalent). This metric represents weighted-average power consumption relative to a fixed speed motor similar to NEMA’s Power Index. This metric provides a rank ordering and a conservative estimate of energy savings relative to a single speed baseline product.

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