3-Phase UPS

[abcd]

How can i troubleshoot a 3-phase Uinterruptable Power Supply (UPS)? Whats the technical data behind the device?

 

[ron]

You have asked a huge question.
Without really detailed information about your problem and an equipment manual, there is no way anyone can help.

 

[dereckbc]

You start by operating the bybpass switch taking the UPS out of service. Like Ron said no way to answer this question without a whole lot of details.