Motors

Motors

Contributors in Motors

Motors

A totally enclosed enclosure which is constructed to withstand an explosion of a specified gas, vapor or dust which may occur within it. Should such an explosion occur, the enclosure will prevent the ...

BRUSH

Electrical equipment; Motors

A piece of current conducting material (usually carbon or graphite) which rides directly on the commutator of a commutated motor and conducts current from the power supply to the armature windings.

C flange

Electrical equipment; Motors

A type of flange used with close coupled pumps, speed reducers, and similar applications where the mounting holes in the f flange are threaded to receive bolts. Normally the "C" Flange is used where ...

constant H.P.

Electrical equipment; Motors

A designation for variable or adjustable speed motors used for loads requiring the same amount of H.P. regardless of their motor speed during normal operation.

design A, B, C, D - for AC motors

Electrical equipment; Motors

NEMA has standard NEMA motor designs of various torque characteristics to meet the various requirements posed by different application loads. The design "B" is the most common design.

I2R

Electrical equipment; Motors

Losses due to current flowing in a conductor caused by resistance (equals the current squared times the resistance.

J seconds (DC motors)

Electrical equipment; Motors

J is the per unit moment of inertia. It is defined as the time in seconds to accelerate the motor armature to rated base speed using rated full load torque.