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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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$534.46 Each
Free Shipping
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Obsolete
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#2840515
BALDOR EMVM28904D-PP M3BP 280SMC 4P B5 90KW :
Brand Baldor
Model EMVM28904D-PP
$10,786.29 Each
Free Shipping
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Obsolete
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#699626
BALDOR P14H7237 P14H7237
Brand Baldor
Model P14H7237
$782.05 Each
Free Shipping
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$651.70 Each
Free Shipping
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#39618
BOSTON 65239 EU-W AC MOTOR
Brand Boston Gear
Model EU-W
$163.93 Each
Free Shipping
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#39621
BOSTON 65246 HU-5/8-W AC MOTOR
Brand Boston Gear
Model HU-5/8-W
$249.53 Each
Free Shipping
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#39704
BOSTON 66174 NU-B 71/2H230/460V3 AC MOTOR
Brand Boston Gear
Model NU-B
$1,335.52 Each
Free Shipping
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#39817
$340.00 Each
Free Shipping
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#2275898
Browning CTFB 3.0 2/4V 182TC 100 C-FACE ATO BRAKEMOTORS-900
Brand Browning
Model CTFB 3.0 2/4V 182TC 10
$1,713.12 Each
Free Shipping