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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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#2303731
GT2523 Marathon Electric
Brand Marathon Electric
Model GT2523
$1,847.83 Each
Free Shipping
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#2304476
M723 Marathon Electric
Brand Marathon Electric
Model M723
$3,585.20 Each
Free Shipping
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#2303740
GT3527 Marathon Electric
Brand Marathon Electric
Model GT3527
$1,695.64 Each
Free Shipping
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#2303699
GT3124 Marathon Electric
Brand Marathon Electric
Model GT3124
$1,484.84 Each
Free Shipping
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#2303425
U988A Marathon Electric
Brand Marathon Electric
Model U988A
$696.84 Each
Free Shipping
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#2303746
GT3423 Marathon Electric
Brand Marathon Electric
Model GT3423
$2,650.97 Each
Free Shipping
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#2303785
E564-P Marathon Electric
Brand Marathon Electric
Model E564-P
$2,349.89 Each
Free Shipping
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#2303478
U410A Marathon Electric
Brand Marathon Electric
Model U410A
$447.28 Each
Free Shipping
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#2303706
GT3525 Marathon Electric
Brand Marathon Electric
Model GT3525
$1,734.00 Each
Free Shipping
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#2303771
GT3530 Marathon Electric
Brand Marathon Electric
Model GT3530
$1,773.22 Each
Free Shipping
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#2303664
GT3222 Marathon Electric
Brand Marathon Electric
Model GT3222
$1,527.84 Each
Free Shipping
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#2303701
GT3424 Marathon Electric
Brand Marathon Electric
Model GT3424
$1,402.22 Each
Free Shipping