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Definitions (54)
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breakdown torque
The maximum torque that an ac motor will develop with rated voltage applied at rated frequency without an abrupt drop in speed. Also termed pull-out torque or maximum torque.
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alternator
A synchronous machine used to convert mechanical power into alternating current electric power.
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ambient temperature
The temperature of the surrounding cooling medium. Commonly known as mom temperature when the air is the cooling medium in contact with the equipment.
Meaning awaits approval from a moderator |
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amperes
Measure of current flow in electrical circuit.
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base lin
E - A vibration reading taken when a machine is in good operating condition that is used as a reference for monitoring and analysis.
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bearings
Supports, guides, and reduces the friction of motion between fixed and moving machine parts.Sleeve: Preferred where low noise is important as on fan and blower motors.Ball: Used where high shaft load [..]
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code letter
A letter which appears on the nameplates of ac motors to show their locked-rotor kilovolt amperes per horsepower at rated voltage and frequency.
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constant horsepower motor
A term used to describe a multi-speed motor in which the rated horsepower is the same for all operating speeds. When applied to a solid state drive unit, it refers to the ability to deliver constant h [..]
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constant torque motor
A multi-speed motor for which the rated horse power varies in direct ratio to the synchronous speeds. The output torque is essentially the same at all speeds.
Meaning awaits approval from a moderator |
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delta connection
A three-phase winding connection in which the phases are connected in series to form a closed circuit-
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