35 KV Dry-type Transformer
1. Safety and reliability: oil-free, made of epoxy resin, fire and explosion-proof, can be installed indoors and in distribution panels.
2. Moderate losses: energy-efficient Type 9 design, stable operation, high cost-effectiveness.
3. High short-circuit resistance: good insulation, high mechanical strength, suitable for operation in 35 kV power transmission networks.
4. Weather and moisture resistance: dust-proof, moisture-proof, pollution-resistant, high environmental adaptability.
5. Easy maintenance: equipped with intelligent temperature control, no lubrication required, long service life.
I. Product Definition and Standards
It has Class F insulation (155℃), a fully sealed vacuum epoxy cast structure, oil-free, fire-resistant, and explosion-proof. It is an ideal replacement for traditional oil-immersed transformers in areas with high requirements for noise, fire safety, and the environment.
II. Key Technical Parameters (Customizable)
Element |
Standard Specification |
Energy Efficiency Class |
High-Efficiency and Energy-Saving Transformer |
Rated capacity |
Standard Power: 50 kVA-63000 kVA |
Connection Group |
Dyn11 |
Cooling Mode |
AN (Natural Air Cooling) / AF (Forced Air Cooling) Continuous overload for AN is 120%, for AF up to 150%. |
Insulation class |
Class F (155℃) |
Protection degree |
IP20 (standard); IP30 / IP40 optional |
III. Main performance advantages
Safe and environmentally friendly
Oil-free, sealed, fire-resistant, explosion-proof, does not pollute the environment with oil.
Can be installed directly in consumption centers (hospitals, airports, high-rise buildings, residential areas, chemical zones) without oil separation pits or fire barriers.
Low losses and energy savings
Meets Type 9 loss standards. Optimized core and winding design reduces both no-load and load losses, significantly lowering long-term electricity costs.
Energy efficiency surpasses that of older dry-type and oil-filled transformers.
Weather and pollution resistance
Fully sealed design: moisture-proof, dust-proof, anti-condensation, and resistant to pollution.
Stable operation in high humidity, coastal, and heavily polluted areas. No pre-drying required before restart after prolonged shutdown.
Low noise level and stable operation
Low-noise silicon steel and reduction of structural noise; noise level is generally below national standards.
High mechanical strength allows it to withstand grid surges and short-circuit currents.
IV. Typical Application Areas
Power grids: 35 kV distribution substations, urban/rural grid upgrades, step-down substations for industrial and mining enterprises.
Key buildings: shopping malls, subways, airports, hospitals, data centers.
Harsh environmental conditions: high-humidity coastal areas, chemical zones, flammable and explosive facilities (mines, refineries).
Noise- and environmentally sensitive areas: residential areas, schools.
