Maximum Power Rating	Up to 180MVA
Primary Voltage	Up to 220kV
Teamperature Rise	60-65℃
Trasnformer Core	High quality grain-oriented cold rolled siliconsteel of high magnetic conductivity
Cooling	ONAN ONAF
Insulation Level	11/12/75/28kV、22/24/125/50kV、33/36/170/70kV
Vector Group	Dyn11，Yyn0 or customer specified           Reference standards for design, manufacturingand test: 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.