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Type of transformer

Answer

■Single-phase(1Φ) transformer
A single-phase transformer is a transformer that receives single-phase power by itself.

■Three-phase(3Φ) transformer
A three-phase transformer is a transformer that independently receives three-phase power.

■Three-phase / Two-phase : Scott connection(3/2Φ)transformer
This is a transformer that converts three-phase power into two single-phase circuits.
The balance of a three-phase power supply can only be obtained if the load on the secondary side is split into two circuits of equal capacity.

■Three-phase / Single-phase : Reverse-V ( 3/1Φ) transformer
This is a transformer that converts three-phase power into a single-phase single circuit.
It is used when the secondary load cannot be divided into two circuits.
However, the three-phase power supply is unbalanced. (The primary U-phase current is twice the rated current of the three-phase)