Maximum Power Rating	Up to 180MVA
Primary Voltage	11kV 22kV 33kV 66kV 110kV 138kV 220kV
Transformer Winding	High quality copper wire or Aluminum wire
Transformer Core	High quality grain-oriented cold rolled siliconsteel of high magnetic conductivity
Transformer Oil	Mineral oil/ Vegetable oil/Silicon oil
Optional Components	On-load tap changer, winding thermometer, Oil thermometer, Oil level gauge,           Cable box, Terminal Box, Gas relay, Pressure Relief Valve,
Vector Group	Dyn11，Yyn0 or customer specified
Reference standards for design, manufacturing and teste	IEC 60076

⦁ Constructed with premium grain-oriented cold-rolled silicon steel for high permeability
⦁ 45° full-step staggered lamination reduces no-load loss by 20% - cutting energy costs effectively

⦁ Precision-engineered with high-purity copper foil/wire and balanced ampere-turns
⦁ 15% reduced stray losses with oil-duct cooling lowering temperature by 10°C - extending service life by 3-5 years
⦁ Overload capacity improved to 150% rated current - minimizing downtime during peak demand

⦁ HV winding is manufactured with high quality copper wire and excellent design structure.
⦁ It improves the distribution of electric field. With lightning impulse analysis, the ability of anti-lighting impulse has been improved - preventing $50k+ lightning damage annually

⦁ Class A oil-impregnated insulation features concentric HV/LV coil alignment with precision-engineered oil-paper barriers
⦁ The minimized oil clearance design enhances dielectric strength while maintaining operating temperature at full load - ensuring 99.9% power availability

⦁ Renewable energy installations such as wind farms and solar parks require step-up transformers to raise generator voltages to medium-voltage levels for grid integration.
⦁ Pearl Electric's oil-immersed high voltage transformers feature low losses, robust ONAN/ONAF cooling, and high moisture resistance, ensuring efficient and stable operation even in harsh conditions.
⦁ Supporting capacities from 50 kVA to 180 MVA and fully compliant with IEC 60076 international standards, these transformers are tailored for wind and solar power applications.

⦁ High-voltage transmission networks demand transformers with precise voltage regulation, strong short-circuit withstand capability, and minimal energy losses.
⦁ Pearl Electric’s oil-immersed transformers offer voltage classes from 11 kV to 230 kV and impedance options between 4% and 12%, flexibly matching long-distance transmission requirements.
⦁ Advanced 3D CAD modeling, high-frequency welding, and hydraulic compaction techniques enhance structural integrity and ensure compliance with IEC 60076 standards.

⦁ Oil & gas installations, such as offshore platforms and gas-fired power stations, require reliable operation in flammable and corrosive environments.
⦁ Pearl Electric delivered 2500 kVA oil-immersed distribution transformers for a Myanmar gas power station, featuring oil-leak-proof design and flame-retardant insulation to maximize safety.
⦁ Optional accessories such as pressure relief devices and explosion vents ensure compliance with the highest industry safety standards.

⦁ Nuclear power plants impose the highest demands on transformer insulation, fire safety, and seismic resilience.
⦁ Our oil-immersed high voltage transformers use Class A insulation materials, rubber gasket sealing, and core hydraulic compaction to achieve superior insulation levels and seismic strength.
⦁ All units undergo type tests and special tests in independent laboratories, fully complying with IEC 60076 and IAEA safety guidelines.