universal motor

[¦yü·nə¦vər·səl ′mōd·ər] (electricity) 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.

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

universal motor

A motor capable of operating either on alternating current or on direct current.

单词	universal motor
释义	universal motor universal motor n (Electrical Engineering) an electric motor capable of working on either direct current or single-phase alternating current at approximately the same speed and output universal motor universal motor [¦yü·nə¦vər·səl ′mōd·ər] (electricity) 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. 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 universal motor A motor capable of operating either on alternating current or on direct current. ThesaurusSeeelectric motor
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