universal motor

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Related to universal motor: Induction motor

universal motor

[¦yü·nə¦vər·səl ′mōd·ər]
A motor that may be operated at approximately the same speed and output on either direct current or single-phase alternating current. Also known as ac/dc motor.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

Universal motor

A series motor built to operate on either alternating current (ac) or direct current (dc). It is normally designed for capacities less than 1 hp (0.75 kW). It is usually operated at high speed, 3500 revolutions per minutes (rpm) loaded and 8000 to 10,000 revolutions per minute unloaded. For lower speeds, reduction gears are often employed, as in the case of electric hand drills or food mixers. As in all series motors, the rotor speed increases as the load decreases and the no-load speed is limited only by friction and windage. See Alternating-current motor, Direct-current motor

McGraw-Hill Concise Encyclopedia of Engineering. © 2002 by The McGraw-Hill Companies, Inc.

universal motor

A motor capable of operating either on alternating current or on direct current.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
A similar numerical approach has been used for the study of brush body resistance for universal motors where carbon brushes are employed [10-19].
The carbon brushes of a universal motor eventually wear out, and the commutator gets pitted and worn from the constant sparking as the two break contact.
This paper proposes that premiums for basic limits of uninsured motorists coverage be collected by a small universal motor fuel surcharge.
KIRKLEES Council has received the following planning applications: S Bohran, change of use from car parts shop to |hot food takeaway and building of external flue, Universal Motor Spares, 2 Bradford Road, Fartown.
Other than a single mention of the name of the firm in research material, no information is available about the One Wheel Truck Co., and the Universal Motor Truck Traction Engine Co.
Stephen Lee, Vice President of Porsche's Taiwanese agent Universal Motor Traders (UMT), stated that Porsche sales in Taiwan has grown so much in the past years, and UMT is the second biggest independent Porsche importer in the world.
* Applications ranging from exercise equipment to conveyors, driven by a versatile universal motor that can be run from 115 VAC or VDC and which can be speed controlled with a rheostat or a simple "light dimmer" triac electronic control.
Zilog announced its Z8F083A series flash microcontroller (MCU) for fan control and universal motor control applications.
L'EQUIP Model 110.5 Mini Pulp Ejector Juicer features a heavy-duty universal motor that provides the most power and the highest efficiency of any other juicer in its class.
5, 2011 (CENS) -- Over 1,000 Porsches were sold in the first nine months in Taiwan to set a record, according to the local dealer Universal Motor Traders (UMT), which delivered 1,074 Porsches from January to October, a 167% year-on-year (YoY) increase, or an increase of 671 units compared to the same period of a year earlier.
Despite its compact design at just 11.5" high, it features a heavy duty universal motor, providing the most power and highest efficiency of any other juicer in its class.

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