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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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#2303744
GT3528 Marathon Electric
Brand Marathon Electric
Model GT3528
$1,854.16 Each
Free Shipping
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#2303661
GT3421 Marathon Electric
Brand Marathon Electric
Model GT3421
$1,189.31 Each
Free Shipping
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#2303354
R430A Marathon Electric
Brand Marathon Electric
Model R430A
$910.42 Each
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#2303727
Y1612 Marathon Electric
Brand Marathon Electric
Model Y1612
$2,016.89 Each
Free Shipping
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#2303741
GT3128 Marathon Electric
Brand Marathon Electric
Model GT3128
$1,854.16 Each
Free Shipping
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#2303752
Y1613 Marathon Electric
Brand Marathon Electric
Model Y1613
$1,603.31 Each
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#2303953
Y1648 Marathon Electric
Brand Marathon Electric
Model Y1648
$16,060.93 Each
Free Shipping
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#2303910
E316A Marathon Electric
Brand Marathon Electric
Model E316A
$7,173.18 Each
Free Shipping
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#2303464
GT0405 Marathon Electric
Brand Marathon Electric
Model GT0405
$640.95 Each
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#2303728
GT0423 Marathon Electric
Brand Marathon Electric
Model GT0423
$1,847.83 Each
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#2303866
W593A Marathon Electric
Brand Marathon Electric
Model W593A
$5,633.07 Each
Free Shipping
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#2303563
GT2511 Marathon Electric
Brand Marathon Electric
Model GT2511
$845.49 Each
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