Transweld uses round enameled copper wire and triple paper covered rectangular copper strips to make HV / LV coils as required by the design. Latest HV and LV winding machines are used to wound coils. Special care is taken
not to damage insulation of wires while
wounding the coils.
DRYING & TRANSFORMER OIL FILLING
The core-coil assembly are placed in an oven to improve insulation resistance and remove accumulated moisture. The dried core-coil assembly are tanked and filled with high quality, clean, dry and tested oil. (IEC 296 standard)
TANK FABRICATION & PAINTING
The tanks are fabricated from mild steel electrically welded suitable bracing and stiffeners are provided for robust construction. Enough cooling radiators made from corrugated fins are provided to maintain the temperature rise within specified limits. The inside walls are painted with primer and varnished while outer surface is painted with epoxy based zinc chromate primer and coats of enamel paint of dark grey shade. All tanks are pressure tested before leaving the
fabrication shop of factory.