Trasformer internal fault
Trasformer internal fault
(OP)
Hi Guru,
we found on transformer 2500 kVA 11kV/0.4 kV,Seal Type,ONAN
Insulation test between secondary with Earth is failed(Reading near zero)but another test such Ratio, DC Resistanceand insulation in primary side are O.K., So what happening with our transformer.
Thanks
Young Engineer
we found on transformer 2500 kVA 11kV/0.4 kV,Seal Type,ONAN
Insulation test between secondary with Earth is failed(Reading near zero)but another test such Ratio, DC Resistanceand insulation in primary side are O.K., So what happening with our transformer.
Thanks
Young Engineer






RE: Trasformer internal fault
Regards
Marmite
RE: Trasformer internal fault
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If it is broken, fix it. If it isn't broken, I'll soon fix that.
RE: Trasformer internal fault
"Throughout space there is energy. Is this energy static or kinetic! If static our hopes are in vain; if kinetic — and this we know it is, for certain — then it is a mere question of time when men will succeed in attaching their machinery to the very wheelwork of nature". – Nikola Tesla
RE: Trasformer internal fault
If not sure, disconnect all the cable or busbar of the 3 phase + neutral directly on the secondary of the transformer before testing it.
RE: Trasformer internal fault