Polarization index
Polarization index
(OP)
Dear all,
I have this transformer 6000 kva , primer 11.000 v , sec 245 v, teh dga result was indicating high h2, i am planning to do polarization index, is it save to inject 500v dc to secunder for 10 minutes for pi test the secunder? (twice the nominal rating of the secundr)From the standard bellow 600 v i think it would be 1000 v?
Thank you
Marten
I have this transformer 6000 kva , primer 11.000 v , sec 245 v, teh dga result was indicating high h2, i am planning to do polarization index, is it save to inject 500v dc to secunder for 10 minutes for pi test the secunder? (twice the nominal rating of the secundr)From the standard bellow 600 v i think it would be 1000 v?
Thank you
Marten






RE: Polarization index
Not sure what a PI test will tell you about hydrogen production. This is typically cause by partial discharge or hydrolysis.
RE: Polarization index