400v to 230v transformer wiring diagram

How to Wire Combo of 3 & 1-Φ, 400V/230V Distribution.. The secondary of the distribution transformer is wires in Y or Star connection. This way, the stepped-down voltage (from 11kV to 400 & 230V) can be achieved as follows. Voltage between Phase (or any Line) to Neutral = 230V AC Single Phase. Voltage between Three Phases (Lines) = 400V AC Three Phase.

How to Wire Combo of 3 & 1-Φ, 400V/230V Distribution.
How to Wire Combo of 3 & 1-Φ, 400V/230V Distribution. from cdn.yesss.co.uk

IEC Wiring Color Codes for 400V, 3-Phase, 4/5-Wire System. Brown = Phase 1 or Line. Black = Phase 2 or Line 2. Gray = Phase 3 or Line 3. Blue = Neutral. Green or Green with Yellow.

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