UPS and neutral connection

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UPS and neutral connection

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adromedo

New member
I have a circuit where i need to install a UPS. It will be feed by a system with Tansfer automatic switch, it is mean the neutral will be break during transfer . I know that the best solution to avoid the break of the neutral is to install a isolation transformer for the UPS but what is the problem if just i connect the neutral to earth after the main circuit breaker that feed the UPS.
 

brian john

Senior Member
Location
Leesburg, VA
If you are concerned about the neutral an ATS with an over lapping neutral are available

What is the input voltage to the UPS 3 phase 4 wire or 3 phase 3 wire?

Is the bypass 3 phase 3 or 4 wire?
 
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