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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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#1847548
WWE PEWWE40-18-575-324T 40HP 1800RPM 324T FR 575
Brand WorldWide Electric
Model PE40-18-575-324T
Obsolete
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#1847450
WWE WWE350-12-586/7UZ 350HP 1200RPM 586/7UZ FR 460
Brand WorldWide Electric
Model 350-12-586/7UZ
Obsolete
Big_card_vertical
#1847458
WWE WWE450-12-586/7 450HP 1200RPM 586/7 FR 460
Brand WorldWide Electric
Model 450-12-586/7
Obsolete
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#1847739
WWE XPEWWE3-18-182TC 3HP 1800RPM 182TC FR 208-230/460
Brand WorldWide Electric
Model XPE3-18-182TC
Obsolete
Big_card_vertical
#726547
$94.73 Each
Free Shipping
Big_card_vertical
#699785
Obsolete
Big_card_vertical
Obsolete
Big_card_vertical
#702209
Big_card_vertical
Big_card_vertical
Big_card_vertical
$19,944.53 Each
Free Shipping
Big_card_vertical
#5762977
$186.10 Each
Free Shipping