Hello everyone.
We have a new 70MVA (34.5/1.0kV)transformer suppliying an EAF (Electric Arc Furnace). We took 2 oil samples within 4 days and I don't really understand the results:
GAS-----Feb-08-------Feb-12
H2-------3.79---------2.36
O2-------4,636--------2,492
N2-------14,704------8,123...
Hi,
We recently energized a 166MVA power transformer (230kV / 34.5kV --Grounded Wye / Grounded Wye thru resistance). We recorded currents on the primary and secondary side. The primary currents were as spected (~2000Amps) but I was surprised to see current on the secondary side, these currents...