負荷 ふか追従 ついじゅう運転 うんてんではありませんでした
fukatsuijūuntendewārimasendeshita

Noun
Desu Copula

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

1. Was not load following operation.; Was not operating in load following mode.

Past/Perfective
Negative
Polite
Formal Register