Energy-saving three-phase dry transformer
1. Higher energy efficiency: Energy efficiency class 2, with lower loss than SCB13, which can save more energy in long-term use.
2. Safety and fire resistance: Oil-free epoxy casting, fireproof and explosion-proof, can be installed in indoor switchboards.
3. Stability and reliability: high short-circuit resistance, small partial discharge and good insulation performance.
4. Ultra-low noise: Optimized iron core, lower noise, suitable for sensitive places.
5. Weather resistance and maintenance-free: moisture-proof, dust-proof, pollution-proof, no lubrication required, long service life.
Technical characteristics of dry-type transformer with epoxy coating, operating at 35 kV.
I. Product Overview
The 35kV SCB dry type transformer made of epoxy resin is a high performance, ultra low loss, highly reliable upgraded model for the mass market of medium and high voltage distribution systems.
It features oil-free structure, vacuum epoxy casting and foil winding, and outstanding performance in fireproof, explosion-proof, moisture-proof, dust-proof, short-circuit-proof and maintenance-free.
It is widely used in power grids, industrial and mining enterprises, data centers, airports, subways, hospitals, chemical plants, power plants and other places with strict requirements for safety and energy efficiency.
II. Key technical parameters (customizable)
Rated voltage: 35 kV (tap from circuit ±2×2.5%) / 0.4 kV
Rated power: 50 kVA-63000 kVA
Connection group: Dyn11 (standard)
Thermal insulation class: class F (155℃)
Cooling modes: AN (natural cooling) / AF (forced air cooling)
III. Structural and technological features
Key Component - Ultra-Low Loss and Ultra-Low Noise
Highly permeable grain oriented silicon steel, thickness 0.27 mm.
Multi-stage step connection to create a uniform magnetic circuit, reduce magnetic resistance and vibration.
Full epoxy coating for protection against moisture, rust and corrosion.
The high-strength non-magnetic mount ensures a rigid structure, eliminating loosening or extraneous noise during transport and operation.
Winding - high strength, high insulation, high short circuit resistance.
Low voltage foil winding: Made of oxygen-free copper foil, it provides uniform current distribution and low eddy current losses.
High voltage multilayer cylindrical winding: balanced ampere-turns, excellent short-circuit resistance.
Vacuum cast epoxy with fiberglass reinforcement: no bubbles, no voids, no weak points.
High insulation strength, impact resistance, moisture resistance, dirt resistance, non-cracking.
Fire resistance class FV0: smokeless, non-toxic, self-extinguishing.
IV. Typical areas of application
Power grid systems: 35 kV substations, urban distribution networks, step-down substations in industrial parks, energy-saving reconstruction.
Luxury public buildings: airports, metro stations, high-speed rail stations, hospitals, schools, shopping malls, office buildings, high-rise buildings.
Data centers and new energy sources: data centers, cloud computing centers, photovoltaic power plants, wind farm collector stations, energy storage systems.
Hazardous industrial environments: chemical, oil, coal, pharmaceutical, metallurgical enterprises, as well as enterprises working with flammable and explosive substances.
Harsh environmental conditions: coastal areas with high salt fog, high humidity, severe air pollution, plateaus and areas with low temperatures.
