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Tyler Voss Membership & Communications Specialist+1 314 993 2220tvoss@easa.com
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For information about ANSI/EASA AR100 or questions about the work on this standard, contact:
Mike Howell, PE EASA Technical Support Specialist +1 314 993 2220 mhowell@easa.com
Matthew Conville, MBA, PE Especialista de Soporte Técnico de EASA
En la economía global actual, es posible adquirir motores eléctricos fabricados en todo el mundo. Esto nos ofrece muchas opciones para seleccionar un motor eléctrico. La mayoría de los motores eléctricos de 500 HP (373 kW) o menos se ajustarán a una de las dos normas básicas de fabricación; NEMA o IEC. Ambas normas tienen cláusulas específicas que definen los límites de sobretensión a la que se pueden someter las máquinas de inducción en aplicaciones que funcionan con variadores de frecuencia (VFD)/ convertidores. La intención de este artículo es centrarse en las normas IEC para gestionar la sobre tensión en aplicaciones con VFD en lo que respecta a los devanados del motor. Si se necesitan más detalles sobre las aplicaciones NEMA, consulte NEMA MG-1 Parte 31.
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Have you ever wondered how a lightning rod works? That small rod atop a large building extends less than a yard (meter) above the building. Yet the lightning is attracted to that sacrificial rod rather than to the building. If you have not wondered about lightning rods, Iʼll bet you are curious about what lightning rods could possibly have to do with electric motors. The common denominator between electrical windings and lightning rods is geometry.
The Effect of Repair/Rewinding on Premium Efficiency/IE3 Motors Tests prove Premium Efficiency/IE3 Motors can be rewound without degrading efficiency.
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Good Practice Guide to Maintain Motor Efficiency Based on the 2019 and 2003 Rewind Studies of premium efficiency, energy efficient, IE2 (formerly EF1) and IE3 motors
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