Applying adjustable speed drives (ASD`s) to 3 phase induction NEMA frame motors
The availability, price, and flexibility of ASD`s for use with three phase induction motors (referred to simply as motors in the rest of this article) has made ASD`s very common items in many applications where AC and DC motors have been applied in the past. Mating the ASD to the motor and the load requirements is the responsibility of a system integrator. In some projects the system integrator may be the equipment supplier. In others, it may be the ASD supplier. In still others, it may be the Engineer in the mill who integrates the system. Regardless of who integrates the system, if any of the parts do not function properly, the plant engineer has the frustration of plant down time while trying to get the system running. It is the intention of the author in writing this paper to first explain why the motor gets hotter on ASD power than it does on sine wave power. Second, he will explain how to determine the derating if any required on standard motors when applied to ASD`s. There are other areas of concern in mating a motor to an ASD including noise, vibration, and insulation related issues. These will not be included in this paper and could easily be the subject of another paper in the future.
- OSTI ID:
- 54740
- Report Number(s):
- CONF-941218-; TRN: 95:003625-0048
- Resource Relation:
- Conference: 17. world energy engineering congress and the 4th environmental technology congress and expo, Atlanta, GA (United States), 7-9 Dec 1994; Other Information: PBD: 1995; Related Information: Is Part Of Competitive energy management and environmental technologies: Proceedings; PB: 640 p.
- Country of Publication:
- United States
- Language:
- English
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