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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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#5739298
WEG 1311017191 3HP 4P 230/460 100LFF
Brand WEG
Model 1311017191
$974.26 Each
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#5739391
WEG .5509EP3WAL90S/L-W22 0.55KW 900 60//50 460
Brand WEG
Model .5509EP3WAL90S/L-W22
$362.27 Each
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#5740547
WEG E16018EP3YAX315SMF3W 160KW 1500 50//60 38
Brand WEG
Model E16018EP3YAX315SMF3W
$18,761.98 Each
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#5783519
WWE HHI1-18-143TCRD 1HP 1800RPM 143TC FR 208-230/460
Brand Hyundai
Model HHI1-18-143TCRD
$244.49 Each
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#2303851
E321 Marathon Electric
Brand Marathon Electric
Model E321
$3,726.97 Each
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#2303719
E206-P Marathon Electric
Brand Marathon Electric
Model E206-P
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#2303643
W547 Marathon Electric
Brand Marathon Electric
Model W547
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#2303312
G135 Marathon Electric
Brand Marathon Electric
Model G135
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#2304466
GT3102 Marathon Electric
Brand Marathon Electric
Model GT3102
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#2303309
K152 Marathon Electric
Brand Marathon Electric
Model K152
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#2303877
Y1627 Marathon Electric
Brand Marathon Electric
Model Y1627
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#2303314
G514 Marathon Electric
Brand Marathon Electric
Model G514
$183.55 Each
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