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Kuncoro
Associate

Join Date: Aug 2008
Posts: 31

Transformer Wye Connection

11/02/2008 8:50 PM

All,

I have distriution transformer 13.8/0.22-0.11kV with configuration delta-wye. On LV side (wye) I have problem an In current was shown very high until 100Amp. But in reality condition there was no a significant unbalance load at LV.

What it may probably cause? And what happen if this event has been taking place for along time?

Thanks,

-kg
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V.I.Abraham
Guru
Safety - ESD - New Member India - Member - New Member Engineering Fields - Energy Engineering - New Member

Join Date: May 2007
Location: Pune , India
Posts: 875
Good Answers: 42
#1

Re: Transformer Wye Connection

11/03/2008 3:04 AM

Dear friend,

Your question is not clear to give any reply . Please explain your problem with more details.
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Kuncoro
Associate

Join Date: Aug 2008
Posts: 31
#2
In reply to #1

Re: Transformer Wye Connection

11/03/2008 5:42 PM

Ideally in wye configuration Ia+Ib+Ic=In=0. But in our distribution transformer In was shown very high current until 100 Amp.What it may probably cause?

But three phase load still balancing

Thanks

-kg
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ashuashi
Associate

Join Date: Aug 2007
Location: New Delhi, India
Posts: 33
#3
In reply to #2

Re: Transformer Wye Connection

11/04/2008 2:15 AM

How are you measuring the current value? Try it using meters.

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 Ashish Gupta
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Kuncoro
Associate

Join Date: Aug 2008
Posts: 31
#4
In reply to #3

Re: Transformer Wye Connection

03/15/2009 7:53 PM

Yes by am meter record
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ashuashi (1); Kuncoro (2); V.I.Abraham (1)

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