The plant engineer asked you to walk out to the small MCC near the plant’s paper making machine. There, he pointed to an open cubicle with a floor fan blowing into it.
“That’s the motor starter for the main drive motor under the machine. The operators put that fan there to keep the overloads from blowing. I want you to put a lock on that door and figure out why the overloads blow.”
Where do you start?
After you put a lock