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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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#726826
Leeson LM03536
Brand Leeson
Model LM03536
Obsolete
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#726863
Leeson LM13585
Brand Leeson
Model LM13585
Obsolete
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#727068
Leeson LM20058
Brand Leeson
Model LM20058
Obsolete
Big_card_vertical
#727082
Leeson LM21207
Brand Leeson
Model LM21207
Obsolete
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#727147
Leeson LM22829
Brand Leeson
Model LM22829
Obsolete
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#727380
Leeson LM30732
Brand Leeson
Model LM30732
Obsolete
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#224649
Big_card_vertical
$25,120.42 Each
Free Shipping
Big_card_vertical
$275.87 Each
Free Shipping
Big_card_vertical
$194.08 Each
Free Shipping
Big_card_vertical
$278.08 Each
Free Shipping
Big_card_vertical
$10,764.82 Each
Free Shipping