IEC
Gas-Insulated Power Transformers
Gas-insulated power transformers utilize inert gas as the insulating medium, featuring compact structure, fireproof and explosion-proof characteristics, making them particularly suitable for space-constrained installations like urban substations. These transformers offer high reliability, near maintenance-free operation, and excellent environmental adaptability.
-
Precision Quality and Proven Performance
-
Explosion-Proof and Non-Flammable
-
Compact and Durable Design
Product Highlights
Precision Quality and Proven Performance
Our products deliver reliable quality and outstanding performance. Manufactured with industry-leading specialized production and testing equipment in dedicated dust-proof, moisture-resistant, and temperature-controlled GIS transformer workshops. Standard models comply with GB 20052-2024 Class II energy efficiency requirements, while custom-designed models meeting Class I energy efficiency standards are available upon request.
Explosion-Proof and Non-Flammable
Utilizing inert gas as insulation medium, it demonstrates minimal tank pressure increase during internal faults compared to conventional oil-immersed transformers, completely eliminating tank rupture risks and ensuring absolute safety for substation equipment, achieving true explosion-proof and fire-proof performance.
Compact and Durable Design
By positioning the cooler air pumps in the lower low-temperature zone, it effectively slows lubricant and gear aging, extending pump service life by over 30%. The innovative "hot-swappable air pump" design enables safer and more convenient maintenance, reducing user maintenance frequency by 50% while significantly improving operational efficiency.
Technical Specification
Voltage Level
110kV, 220kV
Insulated Gas
SF6
Capacity
Up to 80MVA
Number of Phase
Single Phase, Three Phase
Cooling Mode
GNAN,GDAN,GDAF,GDWF
Transformer Arrangement
Integrated, Split
Neutral Insulation Level
Full, Graded






