Power Index: Simplified Savings for Variable Speed Drives

April 19, 2022 - Power Index for Power Drive Systems and Drives: NEEA and National Electrical Manufacturers Association (NEMA) worked together to develop the Power Index (PI) rating system, and NEMA recently published MG 10011-2022 PI Calculation Procedure. The PI metric will provide a simplified method to evaluate the reduction in power and associated energy savings by controlling equipment speed.

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