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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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$24.23 Each
Free Shipping
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#1847207
WWE AT1.5-18-56 1.5HP 1800RPM 56 FR 208-230/460
Brand WorldWide Electric
Model AT1.5-18-56
Obsolete
Big_card_vertical
#1847532
WWE PEWWE10-36-575-215T 10HP 3600RPM 215T FR 575
Brand WorldWide Electric
Model PE10-36-575-215T
Obsolete
Big_card_vertical
#1847492
WWE PEWWE125-12-445T-F2 125HP 1200RPM 445T FR 208-230/460
Brand WorldWide Electric
Model PE125-12-445T-F2
Obsolete
Big_card_vertical
#1847611
WWE PEWWE25-18-284TSC 25HP 1800RPM 284TSC FR 208-230/460
Brand WorldWide Electric
Model PE25-18-284TSC
Obsolete
Big_card_vertical
#1847398
WWE PEWWE60-18-364T 60HP 1800RPM 364T FR 208-230/460
Brand WorldWide Electric
Model PE60-18-364T
Obsolete
Big_card_vertical
#5058416
AURORA 4WP1HS075PEE 75HP 1800RPM 230/460 365TP
Brand Aurora Motors
Model 4WP1HS075PEE
$3,453.29 Each
Free Shipping
Big_card_vertical
#697378
Obsolete
Big_card_vertical
#1378781
Obsolete
Big_card_vertical
Obsolete
Big_card_vertical
Obsolete
Big_card_vertical
#39544
BOSTON 61345 BUUTF-B 30H 230/460V3FT AC MOTOR
Brand Boston Gear
Model BUUTF-B
$1,515.34 Each
Free Shipping