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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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#2303590
E2141 Marathon Electric
Brand Marathon Electric
Model E2141
$637.61 Each
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#2303685
GT0420 Marathon Electric
Brand Marathon Electric
Model GT0420
$1,403.06 Each
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#2303911
W618-P Marathon Electric
Brand Marathon Electric
Model W618-P
$13,989.93 Each
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#2303888
Y1628 Marathon Electric
Brand Marathon Electric
Model Y1628
$6,013.57 Each
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#2303808
GT3229 Marathon Electric
Brand Marathon Electric
Model GT3229
$3,915.32 Each
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#2303268
Y260 Marathon Electric
Brand Marathon Electric
Model Y260
$36,513.57 Each
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#2303533
H183A Marathon Electric
Brand Marathon Electric
Model H183A
$510.62 Each
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#2303305
X273 Marathon Electric
Brand Marathon Electric
Model X273
$112.76 Each
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#2303487
GT3209 Marathon Electric
Brand Marathon Electric
Model GT3209
$644.37 Each
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#2303893
M750 Marathon Electric
Brand Marathon Electric
Model M750
$6,949.08 Each
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#2303802
GT3134 Marathon Electric
Brand Marathon Electric
Model GT3134
$2,618.50 Each
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#2303514
GT2408 Marathon Electric
Brand Marathon Electric
Model GT2408
$650.71 Each
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