CDG 61 Relay

Greetings,

When was the last time PM (preventive maintenance) service was performed on the transformer?

Could be any number of transformer related issues.

Your comment "transformer get tripped on 495 amps" indicates perhaps a dirty air filter or dirty/semi clogged injectors, bad fuel (stale)/water in fuel to name a few, if your are getting a "cloud of dark smoke' all the time and not just for a few seconds during start-up.

Perhaps now is the time to contact the manufacturers service rep to schedule PM service.

As far as "correct" words, your description was fine.

Here are a few other common descriptive words - When engine is running "stable" you can use the words "engine is running smooth" or in the case of "unstable" you can use "engine RPM is surging" or "engine is surging".

-copied As recieved