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Description: Most industrial motors require AC (alternating current) voltage whose polarity oscillates 60 times a second (for a frequency of 60 Hertz) between positive and negative. Single phase AC motors have brushes just like DC motors. Most of them have capacitors to assist starting and to establish the direction of rotation. Changing direction implies changes in the capacitors’ connection. Speed is directly proportional to the applied voltage (just like DC motors). Usage is restricted to low-power uses (home appliances like vacuum cleaners, washing machines, coffee grinders, or power tools like rotary hammers etc.). For higher power requirements, three-phase AC motors are used. These do not have carbon brushes to wear out, their rotors (called squirrel cages) have no electrical connections, thus making them extremely robust and long-lived. Only the stator windings are connected to the power line. They just keep turning as long as their ball bearings are OK. Changing direction requires swapping any two of the three phase lines. Speed control is done by modifying the frequency of the AC delivered to the motor; this can be done using complex devices called AC drives.
Item ID
Item
Price
Quantity
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#1314275
$601.44 Each
Free Shipping
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#2853638
$813.54 Each
Free Shipping
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#2521568
$463.77 Each
Free Shipping
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#2521622
$35.80 Each
Free Shipping
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#2521656
WEG DRCV-BOLT-0343.0227 DRIP COVER BOLT PARTS
Brand WEG
Model DRCV-BOLT-0343.0227
$0.82 Each
Free Shipping orders over $20
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#1847507
WWE PEWWE100-18-460-PWS-405T 100HP 1800RPM 405T FR 460
Brand WorldWide Electric
Model PE100-18-460-PWS-405T
Obsolete
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$4,365.45 Each
Free Shipping
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#5058357
AURORA 4WP1HS07.5SE 7.5HP 1800RPM 230/460 213TP
Brand Aurora Motors
Model 4WP1HS07.5SE
$898.19 Each
Free Shipping
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Obsolete
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Obsolete
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#699156
Obsolete
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Obsolete