自動 じどう電圧 でんあつ切替 きりかえではありませんでした
jidōden'atsukirikaedewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 自動電圧切替

1. Was not automatic voltage switching.; Was not an automatic voltage switch.

Past/Perfective
Negative
Polite
Formal Register
Computing