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alancdavis
Member

Join Date: Jan 2011
Posts: 5

Phaseing out

03/18/2011 7:56 AM

Am I correct in my understanding of this

If phase is correct thenbetween panels r to r will = 0 volts

y to y and b to b will also be 0

If phases are crosed then in essence i am measuring across phases and as such will indicate a voltage presance

eg - r to y - volts,,,,r to b = volts ,,,b to y = volts etc etc

thanks
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RDGRNR
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Engineering Fields - Instrumentation Engineering - New Member

Join Date: Dec 2009
Location: San Antonio, TX USA
Posts: 844
Good Answers: 29
#1

Re: Phaseing out

03/18/2011 8:55 AM

Yes.

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alancdavis
Member

Join Date: Jan 2011
Posts: 5
#2

Re: Phaseing out

03/18/2011 9:41 AM

Thanks,,,,some time you know how to test things but just need a bit od reassurance

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jk
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Netherlands - Member - New Member Canada - Member - New Member

Join Date: Oct 2010
Location: Canada
Posts: 41
Good Answers: 2
#3

Re: Phaseing out

03/18/2011 4:54 PM

If both panels are fed from the same transformer/supply

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adnanzlfqr
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Join Date: Mar 2011
Posts: 2
#4

Re: Phaseing out

03/18/2011 5:23 PM

yes buddy you think right
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alancdavis
Member

Join Date: Jan 2011
Posts: 5
#5
In reply to #4

Re: Phaseing out

03/18/2011 5:30 PM

Thanks Gents
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Plugg
Member

Join Date: Jul 2010
Posts: 9
#6

Re: Phaseing out

03/21/2011 4:20 AM

This is only true when using low voltage test equipment, HV testers have built in safety to ensure the HV potential is not available across the two test probes, which results in a higher voltage indication across the in-phase pair being tested.
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Users who posted comments:

adnanzlfqr (1); alancdavis (2); jk (1); Plugg (1); RDGRNR (1)

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