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The primary disadvantage of the three phase induction motor is that speed control is a challenge. But new technology in the form of VFDs (variable speed drives) is now rectifying this situation very effectively. Another disadvantage is that single phase power is common while three phase power is less commonly available.
Wiki User
∙ 13y ago
Wiki User
∙ 10y agoThe main drawback is that two-phase systems are archaic, and you are unlikely to find one with which to supply a two-phase motor.
Wiki User
∙ 11y agoWithout describing the symptoms it is hard to diagnose a problem with a three phase induction motor.
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Is 3 phase induction motor is self starting?
Yes, that is one of the major advantages of a three-phase induction motor.
Do you need starter for 0.5HP three phase induction motor?
You never need a starter for a three-phase motor.
Is three phase induction motor used for hoisting device?
ya three phase squirrel cage induction motor used to hoist travel application in industrial cranes
Why three phase induction motor has uniform torque?
The 3-phase currents in the 3 coils of an induction motor will produce a steady rotating magnetic field.
How three phase induction motor works without stator?
with 3 phase the rotating field is already set up when power is supplied with single phase you use a capacitor and a second winding to set up the rotating field
Disadvantages of 3 phase induction motor?
One of the disadvantages of the 3 phase induction motor is that it requires a three wire supply. The other disadvantage is that the 3 phase induction motors have poor starting torque and high have in the rush currents.
Theory for brake test on three phase induction motor?
why three phase induction motor is delta connected
Is 3 phase induction motor is self starting?
Yes, that is one of the major advantages of a three-phase induction motor.
Do you need starter for 0.5HP three phase induction motor?
You never need a starter for a three-phase motor.
How do you start three phase induction motor?
Three Phase Induction Motor is self starting motor so you can start it by conneting to power lines directly if the power line capacity is sufficient.
Is a three phase induction motor self starting?
A three-phase motor has a steady rotating magnetic field generated by the stator coil, and the rotor just follows the field.
Is three phase induction motor used for hoisting device?
ya three phase squirrel cage induction motor used to hoist travel application in industrial cranes
Is three phase induction motor continue running when any of the two phase is disconnected?
This question doesn't really make any sense - any of the two phase? A three phase induction motor requires 3 phases to start - if a single phase is lost while the motor is already running then yes the motor will continue to run. A three phase motor will not start if it is missing a phase.
Applications of induction motor?
A single phase induction motor is mainly used in fans.It is capacitor start capacitor run induction motor.In three phase induction motor squirrel cage induction motor is mainly used in elevators,lifts,cranes.slip ring induction motor is mainly used in electrically driven ships.
Full form of scim and srim in three phase induction motor?
Slip Ring Induction Motor and Squirrel Cage Indution Motor
How is slip in three phase induction motor different from slip in single phase induction motor?
They are the same thing: (Nsync - N)/Nsync, or 1 - N/Nsync
How do you wire a three phase motor with capacitor start?
I have never come across a three phase capacitor start motor. Any three phase motors I have worked on are induction start.
