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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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#2303952
Y1642 Marathon Electric
Brand Marathon Electric
Model Y1642
$12,756.08 Each
Free Shipping
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#2303465
GT2405 Marathon Electric
Brand Marathon Electric
Model GT2405
$640.95 Each
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#2303769
GT3230 Marathon Electric
Brand Marathon Electric
Model GT3230
$1,773.22 Each
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#2303492
GT3210 Marathon Electric
Brand Marathon Electric
Model GT3210
$589.21 Each
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#2303707
GT3120 Marathon Electric
Brand Marathon Electric
Model GT3120
$1,997.50 Each
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#2303863
W594-P Marathon Electric
Brand Marathon Electric
Model W594-P
$6,137.16 Each
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#2303634
E2139 Marathon Electric
Brand Marathon Electric
Model E2139
$845.66 Each
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#2303386
N348 Marathon Electric
Brand Marathon Electric
Model N348
$536.32 Each
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#2303776
GT3126 Marathon Electric
Brand Marathon Electric
Model GT3126
$3,230.65 Each
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#2303513
GT0408 Marathon Electric
Brand Marathon Electric
Model GT0408
$650.71 Each
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#2303657
U638A Marathon Electric
Brand Marathon Electric
Model U638A
$996.38 Each
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#2303614
GT3418 Marathon Electric
Brand Marathon Electric
Model GT3418
$1,166.70 Each
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