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20-35KV Dry-Type Transformer
The 20-35KV Epoxy Resin Dry Type Transformer is apower supply cutting-edge solution designed for use in critical infrastructure such as urban power grids, high-rise buildings, commercial centers, schools, hospitals, tunnels, airports, railway stations, subways, ports, underground power stations, and shipsImportant places. This innovative product is characterized by its advanced technology and exceptional performance in demanding environments.
Product Detail
General Introduction
The SCB Series Epoxy Resin Dry-Type Transformer is designed for medium-voltage power distribution systems ranging from 20kV to 35kV. It utilizes epoxy resin casting technology to encapsulate the windings, providing superior electrical insulation, moisture resistance, and mechanical stability. Widely used in industrial plants, commercial buildings, renewable energy projects, and urban infrastructure, this transformer offers reliable power conversion with minimal maintenance requirements.
Applications:
- Industrial power distribution
- Commercial complexes
- Wind/solar power generation
- Urban subway/railway systems
- Mining and petrochemical facilities
Technical Parameters
| Parameter | Specification |
|---|---|
| Voltage Rating | 20kV, 25kV, 30kV, 35kV (customizable) |
| Power Rating | 500kVA – 2500kVA (standard models) |
| Frequency | 50Hz/60Hz |
| Efficiency | ≥99% at rated load |
| Insulation Class | F/H (temperature rise ≤100K/125K) |
| Cooling Method | AN (natural air) or AF (forced air) |
| Noise Level | ≤65dB (under full load) |
| Protection Level | IP20/IP23 (customizable) |
| Temperature Monitoring | PT100 sensors (optional) |
| Impulse Withstand Voltage | 75kV–170kV (depending on voltage class) |
|
额定容量 rated capacity KVA |
电压组合及分接范围 Voltage combination and tap range | 联结组标号Connection Group Symbol | 空载损耗 No-load Loss (W) | 负载损耗 Load Loss (W) | 空载电流No-load Current (%) | 短路阻抗Short Circuit Impedance (%) | ||
|
高压 high voltage (KV) |
分接范围 Tap Range | 低压 low voltage(KV) | ||||||
| 50 | 20 22 24 |
±5 ±2×2.5% | 0.4 | Yyn0 Dyn11 | 340 | 1230 | 2.2 | 6 |
| 100 | 540 | 1990 | 2.0 | 6 | ||||
| 160 | 675 | 2470 | 1.6 | 6 | ||||
| 200 | 740 | 2940 | 1.6 | 6 | ||||
| 250 | 840 | 3420 | 1.4 | 6 | ||||
| 315 | 970 | 4080 | 1.4 | 6 | ||||
| 400 | 1150 | 4840 | 1.2 | 6 | ||||
| 500 | 1350 | 5790 | 1.2 | 6 | ||||
| 630 | 1530 | 6840 | 1.0 | 6 | ||||
| 800 | 1750 | 8260 | 1.0 | 6 | ||||
| 1000 | 2070 | 9780 | 0.8 | 6 | ||||
| 1250 | 2380 | 11540 | 0.8 | 6 | ||||
| 1600 | 2790 | 13870 | 0.8 | 6 | ||||
| 2000 | 3240 | 16380 | 0.6 | 6 | ||||
| 2500 | 3870 | 19380 | 0.6 | 6 | ||||
Key Features
-
Epoxy Resin Encapsulation
- Provides excellent resistance to moisture, dust, and chemical corrosion.
- Ensures long-term reliability in harsh environments.
-
High Safety Standards
- Fire-resistant and non-toxic materials, meeting IEC 60076-11 standards.
- No risk of oil leakage or explosion, suitable for indoor installations.
-
Energy Efficiency
- Low no-load and load losses, reducing operating costs.
- Complies with international energy efficiency regulations (e.g., EU CoC Tier 2).
-
Compact Design
- Space-saving structure for easy installation in confined spaces.
- Lightweight compared to oil-immersed transformers.
-
Thermal Stability
- Advanced heat dissipation design for continuous operation at high temperatures.
- Built-in thermal protection system to prevent overheating.
-
Low Noise Operation
- Optimized core and winding design to minimize electromagnetic noise.
- Suitable for noise-sensitive environments (e.g., hospitals, schools).
-
Easy Maintenance
- No oil filtration or replacement required.
- Visual inspection ports for quick condition assessment.
-
Customization Options
- Available with various tap changers, protection levels, and monitoring systems.
- Customizable for special applications (e.g., renewable energy integration).












