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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.
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Item
Price
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#2523970
$13.85 Each
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#2523984
$79.65 Each
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#2523995
$3.23 Each
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#2524060
Add to cart to see price
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#2524151
$93.68 Each
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#2524278
$35.03 Each
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#1847476
WWE PEWWE200-18-445/7TSBB 200HP 1800RPM 445/7TS FR 208-230/46
Brand WorldWide Electric
Model PE200-18-445/7TSBB
Obsolete
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#1847350
WWE PEWWE2-18-145T 2HP 1800RPM 145T FR 208-230/460
Brand WorldWide Electric
Model PE2-18-145T
Obsolete
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$517.25 Each
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$351.29 Each
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#223849
801052.00 20//20HP 1750//146
Brand Leeson
Model 801052.00
Obsolete
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#5058439
AURORA 46WP1HS200SE 200HP 1800RPM 460 445TP
Brand Aurora Motors
Model 46WP1HS200SE
$6,573.63 Each
Free Shipping