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commandor
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Join Date: May 2008
Posts: 2

details for power transformer deffrential stability test

05/18/2008 1:24 AM

i need full details for power transformer deffrential stability test three winding 220kv primary two secondary 66kv and 11 kv
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Anonymous Poster
#1

Re: details for power transformer deffrential stability test

05/19/2008 7:57 AM

Do you want fries with that?
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marcot
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Canada - Member - Specialized in power electronics

Join Date: Feb 2008
Location: Montreal, Canada.
Posts: 1372
Good Answers: 80
#2
In reply to #1

Re: details for power transformer deffrential stability test

05/19/2008 11:18 AM

Hurry up! Commandor has ordered you to get this info. He has netter things to do than looking up for it himself. Make sure that you are not missing any details...

Commander, could you "please" take the time to add a few more details to this dry question? Your slaves are not too bright this morning. Thank you.

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 Experienced is earned, common sense is taught, both are rare essentials of life.
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Anonymous Poster
#3

Re: details for power transformer deffrential stability test

08/06/2008 4:12 AM

please reply in full detail of explanation regarding transformer stability test
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Anonymous Poster
#4

Re: details for power transformer deffrential stability test

05/21/2009 11:41 PM

Your trafo is 220Kv/ 66KV- 11kV. For differential stability test u need to create an In-zone fault. For that, ByPass CT of any 1 phase on primary side and short the differential CT at the secondary of transformer with other phase CT on secondary. See whether the Differential relay opreates and Breaker trips on this condition or not. if it trips then the system is stable.
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