3D render of a Sieyuan Gas-Insulated Power Transformer.
3D render of a Sieyuan Gas-Insulated Power Transformer.
3D render of a Sieyuan Gas-Insulated Power Transformer.

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

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

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

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