Total Parts Of  a Power Transformer

1. Core / No-load losses minimized by utilizing laser-scribed, super grain-oriented steel. 2. Lamination width customized to achieve a near perfect circle core cross section,  resulting in the most efficient use of materials plus a lighter, more compact,  high performance transformer. 3. Coil assembly rigidly braced in a high-strength frame that distributes clamping forces  around the full circumference of the windings. 4. Submerged-arc welding process produces deep penetration welds, virtually eliminating  leakage from welded tank joints. 5. Inside tank surfaces are painted white to facilitate internal inspections. 6. Exterior tank coated to a minimum thickness of 3 mils; this coating has superior   endurance  characteristics and meets ANSI C57.12.28 standards. 7. Galvanized radiators provide excellent corrosion resistance and require minimal  maintenance (fan guards and blades also galvanized). 8. Material-stabilized coils are pressure-fit within the core frame. 9. Patented De-Energized Tap Changer (DETC) features simple and compact in-line  contact arrangement (Patent Number 5,744,764). 10. Load Tap Changer per IEEE C57.131 and IEC 60214; Waukesha's UZD® is designed  to withstand up to a half-million operations without need for contact replacement. 11. NEMA 3R Control Box is an enclosure for customer interface with transformer  monitoring equipment, LTC and transformer cooling controls. Anti-condensation heaters, covered document box, three-point door latch and padlockable door handle are standard as is stainless steel external hardware and a large, removable bottom plate for customer  conduits and cabling