Motors

Motors

Contributors in Motors

Motors

The efficiency of a motor is the ratio of mechanical output to electrical input. It represents the effectiveness with which the motor converts electrical energy into mechanical energy. NEMA has set ...

Air pressure switch

Electrical equipment; Motors

Used on motors with blowers to measure the difference in pressure across the philtre so as to detect a clogged filter.

Electrical degree

Electrical equipment; Motors

A unit of measurement of time as applied to alternating current. One complete cycle =360 electrical degrees. One cycle in a rotating electric machine is accomplished when the rotating field moves ...

Air temperature switch

Electrical equipment; Motors

A device used in air hooded motors to detect the temperature of the exhausted air. When used in this manner an air temperature switch will detect blockage in the cooling air system or long-term motor ...

Electrical time constant (for DC motors)

Electrical equipment; Motors

The ratio of electrical inductance to armature resistance. Electrical time constant in seconds defined as Electrical where La is the armature circuit inductance in henries and la is the rated full ...

Altitude

Electrical equipment; Motors

The atmospheric altitude (height above sea level) at which the motor will be operating; NEMA standards call for an altitude not exceeding 3,300 ft. (1,000 meters). As the altitude increases above ...