Motors

Motors

Industry: Electrical equipment

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Motors

Cycles per second (hertz)

Electrical equipment; Motors

One complete reverse of flow of alternating current per rate of time. (A measure of frequency.) 60 HZ (cycles per second) A.C. power is common throughout the U.S. and 50 HZ is more common in some ...

A special end shield with holes for through bolts in the flange and is primarily used for mounting the motor on gear boxes or bulkheads. standardised for frames 143T through 445T. "D" flanges are not ...

Direct current (D.C.)

Electrical equipment; Motors

A current that flows only in one direction in an electric circuit. It may be continuous or discontinuous and it may be constant or varying.

Dc motor

Electrical equipment; Motors

A motor using either generated or rectified D.C. power (see Motor definition) . A DC motor is usually used when variable speed operation is required.

Definite purpose motor

Electrical equipment; Motors

A definite purpose motor is any motor design, listed and offered in standard ratings with standard operating characteristics with special mechanical features for use under service conditions other ...

Dimensions

Electrical equipment; Motors

NEMA has standard frame sizes and dimensions designating the height of the shaft, the distance between mounting bolt holes and various other measurements. The integral AC motor NEMA sizes run from ...