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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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Obsolete
Big_card_vertical
$1,045.14 Each
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Big_card_vertical
$1,480.21 Each
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Obsolete
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Obsolete
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#2549076
Baldor MVM10032D-AP M3AA 100 LB 2P B5 3265W
Brand Baldor
Model MVM10032D-AP
Obsolete
Big_card_vertical
#39691
BOSTON 66121 ER-B 1/3H 115/230V1 AC MOTOR
Brand Boston Gear
Model ER-B
$242.44 Each
Free Shipping
Big_card_vertical
#1756234
$406.63 Each
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Big_card_vertical
$574.13 Each
Free Shipping
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#2275910
Browning CTIFB .75 575V 56C 100 C-FACE ATO BRAKEMOTORS-900
Brand Browning
Model CTIFB .75 575V 56C 100
$933.62 Each
Free Shipping
Big_card_vertical
$2,428.80 Each
Free Shipping
Big_card_vertical
$369.28 Each
Free Shipping