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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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#2303780
Y1615 Marathon Electric
Brand Marathon Electric
Model Y1615
$2,025.32 Each
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#2303805
GT3534 Marathon Electric
Brand Marathon Electric
Model GT3534
$2,618.50 Each
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#2303613
GT3218 Marathon Electric
Brand Marathon Electric
Model GT3218
$1,166.70 Each
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#2303770
GT3430 Marathon Electric
Brand Marathon Electric
Model GT3430
$1,773.22 Each
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$330.08 Each
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#5788865
BALDOR EMM08754-AP M3AA 80ME 4P B3 0.75kW
Brand Baldor
Model EMM08754-AP
$308.00 Each
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#5788919
BALDOR EMVM13036D-AP M3AA 132MC 6P B5 3kW
Brand Baldor
Model EMVM13036D-AP
$915.43 Each
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$1,692.01 Each
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$447.75 Each
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$8,268.78 Each
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#5789250
$72,736.57 Each
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