Three-phase Transformer (6-35kV)

Three-phase transformers (6-35kV) are static electromagnetic devices designed for voltage transformation and power distribution within medium-voltage networks. They operate on three-phase alternating current systems, utilizing electromagnetic induction to transfer electrical energy between circuits while maintaining system frequency. These transformers feature a core construction of laminated silicon steel and windings configured in delta or wye connections. They accommodate voltage ratios from 6 kV to 35 kV, with power ratings ranging from hundreds to several thousand kVA. Applications include industrial facilities, utility substations, and commercial buildings requiring three-phase power conversion. Cooling methods include oil-immersed self-cooling or forced-air circulation. Insulation systems comply with IEC and IEEE standards for dielectric strength and thermal endurance.