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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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#1847411
WWE PEWWE125-36-444TS 125HP 3600RPM 444TS FR 208-230/460
Brand WorldWide Electric
Model PE125-36-444TS
Obsolete
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#1847467
WWE PEWWE50-18-326TS 50HP 1800RPM 326TS FR 208-230/460
Brand WorldWide Electric
Model PE50-18-326TS
Obsolete
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#1847756
WWE SS40-12-365T 40HP 1200RPM 365T FR 208-230/460
Brand WorldWide Electric
Model SS40-12-365T
Obsolete
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#1847505
WWE WWE500-18-586/7-F2 500HP 1800RPM 586/7 FR 460
Brand WorldWide Electric
Model 500-18-586/7-F2
Obsolete
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$5,378.35 Each
Free Shipping
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$483.71 Each
Free Shipping
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#5058281
Baldor 14C051X993G1 40HP,1000,364T,TEFC
Brand Baldor
Model 14C051X993G1
$6,314.78 Each
Free Shipping
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Obsolete
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$292.06 Each
Free Shipping
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$872.57 Each
Free Shipping
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Obsolete