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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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$1,016.78 Each
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$308.13 Each
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#2303605
GT2514 Marathon Electric
Brand Marathon Electric
Model GT2514
$1,042.22 Each
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#2303668
GT3417 Marathon Electric
Brand Marathon Electric
Model GT3417
$1,634.93 Each
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#2303747
GT3223 Marathon Electric
Brand Marathon Electric
Model GT3223
$2,650.97 Each
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#2303713
E2145 Marathon Electric
Brand Marathon Electric
Model E2145
$1,185.34 Each
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#2303498
GT3505 Marathon Electric
Brand Marathon Electric
Model GT3505
$743.95 Each
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#2303371
E2201-P Marathon Electric
Brand Marathon Electric
Model E2201-P
$434.87 Each
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#2303536
GT3412 Marathon Electric
Brand Marathon Electric
Model GT3412
$830.36 Each
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#2303844
Y1621 Marathon Electric
Brand Marathon Electric
Model Y1621
$2,703.24 Each
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#2303508
C174 Marathon Electric
Brand Marathon Electric
Model C174
$454.47 Each
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#2303757
GT0426 Marathon Electric
Brand Marathon Electric
Model GT0426
$2,252.14 Each
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