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11KV level dry-type transformer
Safe 11kV dry-type transformer for indoor distribution, fire resistance, low noise, and low maintenance.
11KV level dry-type transformer
The 11KV level dry-type transformer are designed as an advanced replacement for traditional oil-immersed distribution transformers. These power transformers excel in performance and are ideal for urban grids, high-rise buildings, commercial centers, theaters, hospitals, hotels, tunnels, subways, stations, docks, airports, underground power stations, laboratories, and modular power substations.
Key Features:
The 11kV epoxy resin cast dry-type transformer is manufactured using vacuum epoxy resin casting technology. It is fire-resistant, flame-retardant, explosion-proof, and pollution-free, making it suitable for direct installation in indoor areas, basements, densely populated places, and other environments with high safety requirements. With high mechanical strength, strong short-circuit resistance, moisture and dust resistance, simple maintenance, low noise, and long service life, it is a safe, environmentally friendly, and reliable distribution transformer.
Why choose a 11KV dry-type transformer
These electrical transformers are designed with advanced materials, scientific formulations, and rigorous testing, ensuring superior durability, reliability, and operational safety. The windings have excellent heat dissipation, supported by air natural cooling (AN) and optional air-forced cooling (AF) systems, enabling short-term overload capacity for safe operation. Additionally, their decentralized installation near load centers minimizes line costs and eliminates the need for costly fireproof systems or backup power sources.
Product Advantages
High Mechanical Strength: The high-voltage windings use copper wire, while low-voltage windings utilize copper wire or foil, vacuum cast with filler-free epoxy resin for a robust, tubular structure. This design ensures high mechanical strength, minimal partial discharge, and reliable performance.
Eco-Friendly and Safe: The transformer is flame-retardant, explosion-proof, and environmentally friendly. Glass fiber insulation materials have self-extinguishing properties, and the resin does not emit harmful gases under high heat.
Durable and Weather-Resistant: Moisture-resistant coils and specially protected iron core components allow the transformer to operate in 100% humidity and harsh environments without dehumidification during intermittent use.
Energy-Efficient and Compact: With low losses, high economic efficiency, and minimal maintenance, it features a compact design, reduced weight, and smaller footprint, making installation cost-effective.
Operating Conditions
Ambient Temperature: -25°C to +40°C.
Relative Humidity: Daily average ≤95%, monthly average ≤90%.
Altitude: ≤1,000 meters.
Installation: Suitable for environments free of fire hazards, explosion risks, or intense vibrations.
Application
The 11kV epoxy resin cast dry-type transformer features fireproof, flame-retardant, safe and environmentally friendly properties, as well as moisture-proof and dust-proof capabilities. It is mainly applicable to indoor areas with strict requirements for fire protection and safety, and is widely used in high-rise buildings, shopping malls, hospitals, schools, data centers, subways, airports, power plants, industrial and mining enterprises, and densely populated areas. It can be directly installed close to the load center, ensuring safe and reliable operation.
Model meaning
Technical Parameters
Overall and mounting dimensions(mm)（Reference）
Model meaning
| SCB10-XXX/11 | S: | Three-phase dry-type transformer |
| C: | Epoxy resin encapsulated insulation | |
| B: | Foil winding, strong overload resistance | |
| 10: | Performance loss level, higher number means more energy-saving | |
| XXX: | Rated capacity (kVA) | |
| 11: | Rated voltage 11kV (high-voltage side) |
Technical Parameters
| Item | Specification |
|---|---|
| Rated Voltage | HV: 11 kV; LV: 0.4 kV |
| Rated Capacity | 100–2500 kVA (standard: 400 / 500 / 630 / 800 / 1000 / 1250 / 1600 kVA) |
| Number of Phases / Frequency | Three-phase, 50 Hz |
| Vector Group | Dyn11 |
| Insulation Type | Epoxy resin vacuum cast |
| Cooling Method | AN (Air Natural) / AF (Air Forced) |
| Tap Changer | Off-circuit tap changer: ±2 × 2.5% |
| Impedance Voltage | 4%–6% |
| Winding Material | Copper winding (SCB series uses foil winding) |
| Insulation Class | Class F or Class H |
| Degree of Protection | IP20 / IP23 / IP30 / IP31 |
| Operating Environment | Indoor use, moisture-proof, dust-proof, flame-retardant, fire-resistant |
| Performance Level | SCB10, SCB13, SCB14 (low-loss types) |
Overall and mounting dimensions(mm)（Reference）
Custom 11kV Epoxy Resin Cast Dry-Type Transformer Solutions
(The values can be customized according to project requirements.)
If you have specific requirements for the parameters, structure, or configuration of the 11kV dry-type transformer, please contact us. Our team of account managers, technical engineers, and product consultants will assess your electrical system design and provide a tailored solution.
We can customize rated capacity, voltage class, winding arrangement, insulation level, connection configuration, cooling method, and enclosure protection grade to ensure reliable performance and efficient operation in your medium-voltage distribution system.
The 11kV epoxy resin cast dry-type transformer features excellent insulation performance, low noise, low loss, and maintenance-free operation, making it ideal for industrial plants, commercial facilities, high-rise buildings, data centers, renewable energy systems, and critical infrastructure applications.
By tailoring transformer specifications to your project’s specific electrical requirements and operating conditions, you ensure stable power distribution, improved energy efficiency, enhanced safety, and long-term reliability in your power network.
FAQ
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