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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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$3.23 Each
Free Shipping orders over $20
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#2524108
WEG SMB-184TA2 SLIDING BASE Integrals
Brand WEG
Model SMB-184TA2
$68.12 Each
Free Shipping
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#2524246
$275.34 Each
Free Shipping
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#1847270
WWE AT13-18-575-56CB 1/3 HP 1800RPM 56C FR 575
Brand WorldWide Electric
Model AT13-18-575-56CB
Obsolete
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#1847534
WWE PEWWE10-12-575-256T 10HP 1200RPM 256T FR 575
Brand WorldWide Electric
Model PE10-12-575-256T
Obsolete
Big_card_vertical
#1847517
WWE PEWWE1-18-575-143T 1HP 1800RPM 143T FR 575
Brand WorldWide Electric
Model PE1-18-575-143T
Obsolete
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#1847563
WWE PEWWE125-36-575-444TS 125HP 3600RPM 444TS FR 575
Brand WorldWide Electric
Model PE125-36-575-444TS
Obsolete
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#1847621
WWE PEWWE60-12-404TC 60HP 1200RPM 404TC FR 208-230/460
Brand WorldWide Electric
Model PE60-12-404TC
Obsolete
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#1847469
WWE PEWWE75-18-365TS 75HP 1800RPM 365TS FR 208-230/460
Brand WorldWide Electric
Model PE75-18-365TS
Obsolete
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#1847498
WWE WWE250-12-449T-F2 250HP 1200RPM 449T FR 460
Brand WorldWide Electric
Model 250-12-449T-F2
Obsolete
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$25,966.74 Each
Free Shipping
Big_card_vertical
$2,752.27 Each
Free Shipping