Any furnace that uses voltage other than standard commercial power needs a transformer. Whether for home or industrial furnaces, the transformer changes the voltage of the input power to a different voltage for use within the furnace.
Transformers are designed for induction furnace, arc furnace & submerged arc furnace application.
Magnetic circuit – lamination CRGO M3 to M5 type
Transformer dry type or oil cooled
Electric circuit – electrolytic grade 99.9% pure copper with transposition in LV coil for current sharing in parallel conductors
Dielectric circuits – electric grade press paper, boards and mineral oil
Thermal circuit – adequate cooling ducts are provided radically & axially for the smooth flow of oil internally. Radiators cooling banks are provided for natural air cooling ONAN & additional fans for ONAF cooling. High current transformers are provided with OFW cooling
On load tap changer to provide +5% to -15% taps in steps of 1.25% as standard range and also custom built for any other ranges. OL.TC will be internally/externally mounted as per the requirement
Class A, uniform/non-uniform insulated
Vector group Dyn11, YNd11, DdOy11
Continuous duty, double copper wound
Painting as per IS/IEC standards
Both HV & LV side outdoor bushings/ cable box/bus ducts/bus bar risers
