Steve Ruffing, Vice Chair of the Technical Committee of the NEMA 1MG Section and Senior Design Engineer at Nidec Motor Corp, discussed the changes to NEMA MG 1. "These enhancements deal with a wide range of topics, including new requirements that promote durability of definite purpose inverter-fed polyphase motors rated 600 volts or less, guidance for procedures to utilize during efficiency and temperature rise testing, and clarification on nameplate marking requirements and on tolerances that can be observed for performance characteristics."
Common examples of motors that rely on MG 1 include those that power production machinery in manufacturing plants, oil field exploration and recovery, heating and air conditioning, and essential components of portable water and fire protection pumping systems.
NEMA MG 1-2016 is available in hard copy or as an electronic download for $448 on the NEMA website.
The National Electrical Manufacturers Association (NEMA) represents nearly 400 electrical, medical imaging, and radiation therapy manufacturers at the forefront of electrical safety, reliability, resilience, efficiency, and energy security. Our combined industries account for more than 400,000 American jobs and more than 7,000 facilities across the United States. Domestic production exceeds $117 billion per year.
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SOURCE National Electrical Manufacturers Association