Previous in Forum: Neutral Currents in UPS Output   Next in Forum: Cable Separation
Close

Comments Format:






Change Mode
Close

Subscribe to Discussion:

CR4 allows you to "subscribe" to a discussion
so that you can be notified of new comments to
the discussion via email.

Close

Rating Vote:







Add Vote
4 comments
Rate Comments: Nested
GURUMOORTHY
Active Contributor

Join Date: Sep 2011
Posts: 14
Good Answers: 1

UPS Neutral Floating Voltage

03/09/2012 7:40 AM

what is the voltage level in ups (l1 to earth, l2 to earth and l1 and l2) during earthed condition, if it is floting neutral what ìs the voltage above said codition.
Register to Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.
cuba_pete
Guru

Join Date: Dec 2010
Posts: 1895
Good Answers: 44
#1

Re: UPS Neutral Floating Voltage

03/09/2012 11:09 AM

Whatever the difference of potential is.

Why are you floating the neutral in an UPS? Are you really *floating* the neutral? Do you mean that the neutral is not bonded *in* the UPS? It should be bonded at the service. Is the UPS a separately derived service? Can you explain what you mean by floating?

What is the voltage into the UPS i.e., 480/277, 208/120, etc...?
Register to Reply
GURUMOORTHY
Active Contributor

Join Date: Sep 2011
Posts: 14
Good Answers: 1
#4
In reply to #1

Re: UPS Neutral Floating Voltage

03/15/2012 5:45 PM

Yes. No neutral. Transformer is 440/110 (Ph-Ph) Volts. The company spec. purposively called such type. I want to know the reason.
Register to Reply
wareagle
Guru
United States - Member - New Member

Join Date: Jun 2008
Location: Alabama
Posts: 1604
Good Answers: 63
#2

Re: UPS Neutral Floating Voltage

03/09/2012 3:11 PM

Your post has provide exactly zero information with which to answer your questrion.
Register to Reply
Crabtree
Guru

Join Date: Jul 2007
Location: Commissariat de Police, Nouvions, occupied France, 1942.
Posts: 2599
Good Answers: 77
#3

Re: UPS Neutral Floating Voltage

03/10/2012 4:39 PM

If the neutral isn't bonded to earth at the source, then the voltage to earth could be anything, Guv.

__________________
 Good moaning!
Register to Reply
Register to Reply
Have a Different Question?
4 comments
Copy to Clipboard

Users who posted comments:

Crabtree (1); cuba_pete (1); GURUMOORTHY (1); wareagle (1)

Previous in Forum: Neutral Currents in UPS Output   Next in Forum: Cable Separation

Advertisement

Got Something to Say?
Ask a Question
Start a Discussion

Search this Forum
Electrical Engineering:
Go

CR4 Sections
Aerospace
BioMech & BioMed
Chemical & Material Science
Civil Engineering
Communications & Electronics
Education and Engineering Careers
Electrical Engineering
General Discussion
Instrumentation
Manufacturing
Mechanical Engineering
New Technologies & Research
Software & Programming
Sustainable Engineering
Transportation

Site Directories
Forum Directory
Blog Directory
User Group Directory
RSS Feeds

CR4 Rules of Conduct
CR4 FAQ
Site Glossary

Who's Online (83 right now)
Show Members
Advertisement