Let me explain.
I got a work order stating that a computer that links to the outside that is on a UPS goes down when the power blips.
I did some crawling around, there is a UPS machine rated for 15 amps (big one) with two critical computers on it. One of them went down, they said.
Did more crawling around, found out that there was a real small ups plugged into a power strip in series with the big one that was also plugged into the computer that was going down.
Not knowing what else to do I unplugged the small ups, tossed it aside and plugged it directly into the big one.
Did a smoke test. That means I shut the breaker off feeding the big and only UPS.
Everything worked fine.
I do not know how or why that little one was there, my question is would having two of them in series cause a problem?
