noun
pole-mounted transformer; distribution transformer
Technical term used in electrical engineering and utility contexts. Refers to a transformer mounted on a utility pole that steps down voltage for distribution to consumers.
柱上変圧器は電柱の上に設置されている。
The pole-mounted transformer is installed on top of the utility pole.
この地域では、柱上変圧器が各家庭に電気を供給している。
In this area, pole-mounted transformers supply electricity to each household.
Compound of 柱上 (ちゅうじょう, 'on a pole') and 変圧器 (へんあつき, 'transformer').