Incorrectly connecting a multi-phase motor could potentially cause a huge problem. Inside of the cover where the motor leads reside (we call them 'pigtails') is a diagram of the lead connections. They are wired for typically either 230V or 460 Volt AC operation
Answer for USA, Canada and countries running a 60 Hz supply service.
When using a three phase contactor, a three phase overload block must be used. The wiring of the contactor consists of taking L1, L2 and L3 of the supply and connecting it to L1, L2 and L3 of the contactor. The load is connected to T1, T2 and T3 on the bottom of the overload block.
If you are using a three wire control for operating the contactor the contactor must have a N.O. contact on it to seal the contactor in once the contactor coil has been energized.
The overload block has three N.C. contacts, one for each leg of L1, L2 and L3. These three contacts are wires in series to the stop - start circuit.
Years ago on old schematic diagrams these contacts used to be placed on the down stream side of the magnetic starter's coil (between the coil and the neutral). When the overloads tripped the voltage was left on the control circuit which was found to be dangerous for trouble shooting. Now the overload contacts are positioned in the beginning of the start- stop circuit so that when a overload trips, the whole stop - start circuit becomes de energized.
As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.
Before you do any work yourself,
on electrical circuits, equipment or appliances
always use a test meter to ensure the circuit is, in fact, de-energized.
IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB
SAFELY AND COMPETENTLY
REFER THIS WORK TO QUALIFIED PROFESSIONALS.
It is not advisable to run lower voltage motor on a higher voltage.
no load means the motor is acting like a coil
how to connect power capacitor with 3 phase motor
To do a motor solo run test you need to connect the motor to a power supply. Next, you observe the motor's vibration, temperature, and sounds.
Motor started will have overloads the contactor connect es line voltage.
the three phase dc motor never seen yet motor eaither 3phase m/r or dc motor.
Which starter is best for 7.5 hp 3phase motor?Read more: Which_starter_is_best_for_7.5_hp_3phase_motor
Then it is not a three phase motor.
Into units of what?
How to calculate a cable size of 3kw motor
Yes.
It is possible to run a DC motor on a 3-phase supply using a full-wave rectifier if the voltage is right.
It is not advisable to run lower voltage motor on a higher voltage.
Sir, what is the cable size for 1.5kw 3phase induction motor 400v?
100
Yes, however, the RPM will increase by 20%, if the motor is connected to a shaft or driving something that can not handle the torque, then you might run to heating issues or performance issues.