dry type power transformer
1.Top-level energy efficiency: National standard Class 2 energy efficiency, no-load loss is 6%~18% lower than that of SCB13, resulting in more savings on electricity bills during long-term operation.
2.Ultra-low noise: The iron core and structure are deeply optimized, with noise 3~7dB lower than that of SCB13, making it more suitable for hospitals, schools, and data centers.
3.Safe and reliable: Oil-free, epoxy cast, fireproof and explosion-proof; resistant to short circuits, with small partial discharge, moisture-proof and pollution-resistant, and longer service life.
4.Maintenance-free + intelligent: Oil-free, no need for oil replacement, equipped with intelligent temperature control and remote monitoring, making installation, operation and maintenance more worry-free.
5.Harmonic-friendly: Optional harmonic suppression, suitable for new energy scenarios such as photovoltaics and charging piles.
Product Details of 10kV SCB14 Epoxy Resin Cast Dry-Type Transformer
1. Product Overview
The 10kV SCB14 epoxy resin cast dry-type transformer is a top-level energy-saving power transformer designed in accordance with the national Level 2 energy efficiency standard. As the flagship model of the SCB series, it is fully and ultra-optimized on the basis of SCB13. It adopts higher-purity electromagnetic materials, more precise vacuum casting technology and optimized magnetic circuit structure. Its core loss indicators fully surpass the previous three generations and reach the industry-leading level.
The product fully complies with GB/T 1094.1-2013, GB/T 1094.3-2017 and the strict requirements of Level 2 energy efficiency specified in GB/T 6451 Technical Parameters and Requirements of Three-Phase Oil-Immersed Power Transformers.
With ultra-high energy saving, ultra-low noise and extremely high reliability, it has become the preferred solution for large data centers, high-end commercial complexes, new energy power grids and projects with extremely strict requirements on energy consumption and environment.
2. Model Definition
S: Three-phase Transformer
C: Cast Resin Insulation, adopting high flame-retardant and high heat-resistant epoxy resin
B: Foil Winding, made of high-precision copper/ aluminum foil instead of traditional round wire
14: Performance level code, corresponding to national Level 2 energy efficiency, with further lower loss than SCB13
Rated Voltage: 10kV class, HV rated voltage 10kV, LV default 0.4kV, supporting multi-tap voltage regulation
3. Core Product Advantages
Ultra-High Energy Saving, Leader in Level 2 Energy Efficiency
It strictly implements the national Level 2 energy efficiency standard. Compared with SCB13, no-load loss is further reduced by 6%–18% on average, and load loss by 5%–10% on average.
It delivers remarkable power-saving benefits in long-term continuous operation, especially suitable for large-capacity hub substations and data centers, minimizing the long-term operation cost over its life cycle (30+ years).
Ultra-Low Noise, Eco-Friendly
Adopting high-permeability grain-oriented silicon steel sheets and refined core lamination technology, with optimized clamping structure, it effectively suppresses magnetic noise and mechanical vibration.
Operating noise is 3–7 dB(A) lower than SCB13, controlled at 42–50 dB(A) for conventional capacities, almost equal to quiet indoor environment. It is ideal for noise-sensitive places such as hospitals, schools and high-grade office buildings.
Safe, Explosion-Proof & Upgraded Fire Resistance
Oil-free and fully sealed structure, equipped with special Class H high flame-retardant epoxy resin, providing stronger flame resistance and arc resistance.
It has passed third-party flame retardant and fire resistance tests, and can maintain critical power supply in case of fire, ensuring personnel evacuation and equipment safety.
Strong Vibration & Harmonic Resistance, Stable Operation
Foil winding features compact structure, high mechanical strength and excellent ability to withstand sudden short circuit.
Harmonic suppression winding or filtering device can be optional to effectively offset high-frequency harmonics generated by PV, wind power, inverters, etc., prevent insulation aging and extend service life, especially suitable for new energy grid connection.
Intelligent Interconnection, Maintenance-Free Operation
Equipped with high-end intelligent temperature control system as standard, supporting over-temperature alarm, tripping, automatic fan control and fault pre-warning.
RS485 / Ethernet communication module is optional, which can be connected to building automation system or remote operation & maintenance cloud platform for real-time monitoring, data collection and remote diagnosis, realizing truly unmanned operation.
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4. Main Technical Parameters（customizable）
| Item | Standard Parameter / Range | Notes |
Rated Voltage (HV) | 10kV (±5% / ±2×2.5%) | 12kV, 15kV and other special voltages customizable |
Rated Voltage (LV) | 0.4kV / 0.69kV / 1.14kV | Three-phase four-wire; multi-voltage output customizable |
Rated Capacity | 30kVA – 2500kVA | Common: 100kVA ~ 1600kVA |
Connection Group | Dyn11 (default), Yyn0 | Other connections customizable |
No-load Loss | Complies with Level 2 energy efficiency (GB/T 6451) | Much lower than SCB13 |
Load Loss (120℃) | Complies with Level 2 energy efficiency (GB/T 6451) | Low-resistance conductor, less heat generation |
No-load Current | ≤1.5% (≥100kVA) | Extremely low reactive loss |
Short-circuit Impedance | 4%, 6% (default), customizable | Adapt to different system short-circuit capacities |
Insulation Class | Class H standard (permissible temperature rise 150K) | Strong thermal shock resistance, good overload capacity |
Noise Level | ≤42–50 dB(A) | Top silent level in the industry |
Protection Degree | IP20 / IP30 / IP54 | Adapt to humidity, dust, salt fog and harsh environments |
Service Life | ≥30 years | Optimal life-cycle cost under normal working conditions |
5. Application Fields
As a top energy-saving power device, it is especially suitable for high-end fields with extremely high requirements for energy consumption, noise and reliability:
Data Centers & Cloud Computing: large IDC rooms, supercomputing centers requiring ultra-high energy saving and zero-failure operation.
New Energy Grids: PV power stations, wind farm booster stations, energy storage stations needing harmonic resistance and high stability.
High-End Commerce & Medical Treatment: five-star hotels, shopping malls, Class III hospitals (ICU/operating rooms).
Rail Transit & Hubs: subways, high-speed rail stations, airport terminals.
Precision Industry: chip manufacturing, semiconductor packaging, biopharmaceutical production lines.
6. Operation & Maintenance Key Points
Installation Environment: Ensure good ventilation and sufficient heat dissipation space; ambient temperature shall be within -25℃ ~ +55℃.
Pre-Commissioning Inspection: Test winding insulation resistance, absorption ratio or polarization index; confirm correct wiring and valid temperature controller settings.
Routine Maintenance:
Clean dust on winding surface regularly (once per year recommended) to avoid heat accumulation.
Check temperature controller and communication module to ensure normal remote monitoring.
Test insulation before restart after long-term shutdown; no drying treatment required.
Fault Handling: In case of over-temperature alarm or tripping, check overload, ventilation blockage or temperature controller fault first. Do not reset blindly.
