■Both  motive and illumination power transformer / Dependent system of lamp load and power (3+1Φ)
It is a three-phase transformer that can simultaneously supply a three-phase load and a single-phase load.
You can save space by changing the three-phase transformer and the single-phase transformer into one transformer.

2022.1.21：【案内動画】何をつくってる？ 変圧器事業