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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
Big_card_vertical
$16,447.05 Each
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Big_card_vertical
#726895
Leeson LM13848
Brand Leeson
Model LM13848
Obsolete
Big_card_vertical
#727038
Leeson LM19719
Brand Leeson
Model LM19719
Obsolete
Big_card_vertical
#727172
Leeson LM24693
Brand Leeson
Model LM24693
Obsolete
Big_card_vertical
#727311
Leeson LM28226
Brand Leeson
Model LM28226
Obsolete
Big_card_vertical
Big_card_vertical
$234.32 Each
Free Shipping
Big_card_vertical
$1,122.06 Each
Free Shipping
Big_card_vertical
$460.67 Each
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Big_card_vertical
$623.81 Each
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Big_card_vertical
$10,463.31 Each
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Big_card_vertical
$798.88 Each
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