Answer for UK, Europe and countries running a 50 Hz supply service.
A voltage of 380 volts is not a standard North American voltage, it is a European system voltage. The 220 volts is the line to neutral voltage of 380 volts wye connected system. 380/1.73 = 220
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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.
Further AnswerAs the original answer says, a line voltage of 380 V would result in a phase voltage of 220 V for a delta/wye transformation, but 380 V is not a standard voltage either in North America or in Europe.
The standard nominal line voltage (i.e. line-to-line voltage) used throughout European three-phase low-voltage systems is 400 V. As European three-phase distribution Transformers are always connected delta/wye, A 400-V nominal line voltage results in a 230-V phase voltage (line-to-neutral voltage).
You can use a transformer to step down the voltage from 440 volts to 380 volts. Make sure to use a transformer that is rated for the required input and output voltage, and have a qualified electrician perform the installation for safety.
we are looking to wire up diagram for a 45kw transformer from 220 volts to 440 volts 3 phase 60 Hz <<>> The formula you are looking for is KVA = Amps x Volts x 1.73/1000 = 118 x 380 x 1.73 = 77573/1000 = 77.5 KVA transformer. Your primary amperage will be 205 amps and the secondary amperage will be 118 amps.
I know that a company named TEMco makes a 380v to 120/208 transformer. You can try contacting them for your specific application I will attach their website for you.
You can use a step-down transformer to convert three-phase 600 V to three-phase 380 V. The transformer should be rated for the desired output voltage and capable of handling three-phase connections. Make sure to consult with a professional electrician or engineer when designing and implementing this conversion.
380 volt is commonly used in industrial settings for heavy machinery, commercial buildings for air conditioning systems, and in some residential buildings for large appliances like electric stoves.
I guess you have a chiller unit suitable for 380Volts and you have a source voltage of 220V. You can step up 220Volts to 380 volts with a suitable rated step up transformer.
Only with a 3 phase transformer.
any one of the three line to neutral is 220 volts
Use a transformer.
You can use a transformer to step down the voltage from 440 volts to 380 volts. Make sure to use a transformer that is rated for the required input and output voltage, and have a qualified electrician perform the installation for safety.
If these are the exact voltages that you need you will need an auto transformer to obtain these voltages. If these voltages are nominal voltages and are of a three phase four wire configuration, the 220 voltage can be obtained from the three phase legs to the neutral (ground) connection. The equation to use is 400/1.73 = 231 volts.
No 380 volts is too wide a spread to use a 220 volt motor on.
Unless it is specifically designed to run at reduced voltage, you shouldn't connect it directly. You'll need a step up transformer from 220 to 380.
220 volt single phase from 480 volt 3 phase that one wire taken one phase and second wire connected in earth point. we get 220 v The above answer is incorrect, one phase from a three phase 480 volt system will give you 277 volts to ground. You must use a transformer to get the voltage you need.
You can get a buck / boost transformer which will step down the voltage. What will be important is phase supply.
Answer for UK and countries running a 50 Hz supply service.The voltage potential of 380 volts is not common to North America.It will probably be difficult to tap into the plug to get the voltage.If you have a three phase 380 volt supply from a source then you can obtain a single phase voltage of 220 volts from it. 220/380 is a wye voltage connection. 380 divided by 1.73 will give you 220 volts. L1 - N = 220V, L2 - N =220V, L3 - N = 220V. L1 - L2 = 380, L2 - L3=380, L3 - L1 = 380.
you could use a step down transformer if you had no other option. but the best thing to do is run a 220 feed directly from the fuse panel Step down transformers get very hot and do not last forever