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Electrical equipment
Any equipment that involves the controlled conduction of electrons.
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Electrical equipment > Motors 
breakaway torque
Electrical equipment; Motors
The value of torque that is required to begin motion of an armature or rotor that is de-energized and has been at rest.
breakdown torque
Electrical equipment; Motors
The maximum torque developed by an induction motor at rated voltage and frequency without an abrupt drop in speed.
brush resistance (Rb)
Electrical equipment; Motors
Circuit resistance created by the brushes and the brush film in a brush type motor (universal, PM, wound field) adding to other power losses in a motor.
cogging
Electrical equipment; Motors
A cyclical torque variation superimposed on the D.C. motor torque caused by permeance variations as the armature teeth or rotor magnets pass stator pole tips.
commutation
Electrical equipment; Motors
In D.C. motors the switching (either mechanically or electronically) of the direction of the current in a coil or group of coils to cause a change of magnetic polarity.
commutation angle
Electrical equipment; Motors
In a brush type D.C. motor, the angle in electrical degrees that a coil or group of coils on an armature rotate while being commutated. In a brushless D.C. motor, the angular ...
dielectric strength
Electrical equipment; Motors
A high voltage test of the motor’s insulation ability to withstand an A.C. voltage. The test criterion limits the leakage current to a specified maximum at the test voltage of ...
Sub-categories
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- Circuit breakers (3555)
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- Generators (4046)
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- Measuring Devices (69)
- Motors (5148)
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- Power supplies (1507)
- Transformers (146)
- Xerox (0)