about motors

You must use a 380:220, 3 phase transformer. You cannot connect it directly to the 380 volt line.

A transformer should work fine if frequency is the same. A transformer may be more expensive than a variable frequency drive (VFD). Check availability and pricing in your area. The VFD will allow precise control of the frequency, voltage, and current fed to your motor.

If only - by chance - the motor has 6 leads in its box and its windings are connected in delta, then you can reconnect them into star and use the motor in a 380V supply (if also frequency of the motor and the supply coincide).

guest; look in the terminal box on the motor where the wires enter, are there 6 brass screws? if so you should be able to reconnect for 380 volts, it may have wires instead, they are usually numbered or lettered, 9 or 12 wires coming out of the motor would be reconnectable for different voltage, this way you will not burn out your 220 volt motor.

perry

I believe this man has got it right. I worked with a number of motors over many years, working as an electrician in industry and have always found that unless you are overloading the motor severely, that it is possible to reconnect in either star or delta configuration to alter the current. Of courrse you will alter the torque and output power as well. As he has said, you need to look at the internal connections. If you can find an electrician to check, you may find any number of leads terminated in the connection box, but it is not normally a job that a person without experience should attempt with any guarantee of success. I am in Australia and I had the job of connecting a Hydraulic pump and motor that came from the USA. It had 9 leads and I was able to connect it in a combined star and delta configuration to run the machinary successfully. Most motors will tollerate a full 10% overvoltage. Might run a little hot, but then the life would depend on the insulation rating

No the motor will burn out generally 10 % overvoltage is maximum. Check to see if motor is connected Delta or Wye and consult with manufacturer if higher voltage is possible by reconnection.

no u cant use

What is the insulation of the motor? If it is for 220V, then you cannot connect it directly to 380V. It will kill the motor in no time.

Check the motor plate. If you see a triangle near "220V" printing AND you have access to SIX connection points in cable box then yes you can (changing to star connection) Depending on it's power range you may also need a starter cirquitry