負荷 ふか追従 ついじゅう運転 うんてんじゃなかったです
fukatsuijūuntenjanakattadesu

Noun
Desu Copula

The polite, past negative form of 負荷追従運転

1. Wasn't load following.; Wasn't operating in load following mode.

Past/Perfective
Negative
Polite
Casual Register