How do you convert 415V 3 phase to 230V 3 phase?

Answer 1

An auto transformer will do this job very nicely.

Answer 2

To convert 415 volts to 220 volts, you use a stepdown transformer of an appropriate rating. Since this is a three phase circuit, you need a three phase transformer, or three one phase Transformers.

Answer 3

Use a transformer.

Answer

A three-phase, four-wire, system with a line voltage of 415 V has a phase voltage of 240 V. 240 V is well within the UK's legal voltage-variation allowance of 230 V (+10%/-6%). So, you don't need to 'convert' anything. If the line voltage (line-to-line) is 415 V, then the phase voltage (line-to-neutral) is already 240 V which is close enough to 230 V for your appliances to operate normally. So, you DON'T need to use a transformer!

Answer 4

If you only have 415V 3 phase available you will need a step down transformer to step the voltage down to 230V.

Answer

If you are asking how you can connect a 230-V load from a 415-V three-phase supply, then the answer is straightforward.

415-V is the nominal line voltage for a star (wye) connected three-phase supply in the UK (strictly, its now labelled 400 V to harmonise with EU regulations, but it's still actually 415 V!), which means its phase voltages are a nominal 240 V (again, officially labelled 230 V for harmonisation with EU regulations).

So, you simply need to connect your three-phase load between of the supply's line and neutral conductors (i.e. A-N, B-N, and C-N). A transformer is unnecessary.

Answer 5

Voltages are converted by the use of a transformer. The two voltages 208 (North American) and 415 (UK, European) are not a standard transformer configuration. The transformer would have to be specially wound to achieve this transformation.

Answer 6

An auto transformer will do this job very nicely.

Answer 7

by using step transformer