30kVA 10kV Double-winding Non-excited Voltage Regulating Distribution Transformer
Capacity: 30kVA
Delivery Year: 2025
Country: India
Key Advantages:
Customized Voltage Regulation: The Double-winding Non-excited Voltage Regulating Distribution Transformer enables flexible voltage adjustment via a non-excited tap changer during power outages, addressing India’s fluctuating grid conditions.
Energy Efficiency: This 3 Phase Oil-immersed Power Transformer uses high-purity oil immersion, reducing no-load losses by 25% to enhance energy performance.
Harsh Climate Adaptability: The Non-excited Voltage Regulating Distribution Transformer’s fully sealed oil-immersed design and reinforced insulation ensure stable operation in India’s high-temperature, high-humidity environments.
Have questions? GNEE sales representatives are available for live chat now
Send E-mail: sales@gneeelectric.com
Tel: +8615824687445
Henan GNEE Electric Co., Ltd. is one of the most reliable manufacturers and suppliers of 30kva 10kv double-winding non-excited voltage regulating distribution transformer in China. If you're going to buy customized 30kva 10kv double-winding non-excited voltage regulating distribution transformer made in China, welcome to get quotation from our factory. Quality products and reasonable price are available.
Features and Advantages of Double-Winding Non-excited Voltage Regulation Technology
Features:
• Independent Dual-Winding Design: The Double-winding Non-excited Voltage Regulating Distribution Transformer uses separate primary and secondary windings, with a non-excited tap-changer for safe, de-energized switching to eliminate live-operation risks.
• Precision Voltage Adjustment: Supports ±5% no-load voltage regulation with 0.5% tap-switching accuracy, ideal for grids with frequent voltage fluctuations.
• High Reliability: The windings of this 3 Phase Oil-immersed Power Transformer are processed via vacuum impregnation and oil-sealed technology, effectively suppressing partial discharges and ensuring stable voltage regulation.
Advantages:
• Safety and Efficiency: Non-excited voltage regulation eliminates live operations, reducing short-circuit risks, especially in remote or unmanned environments.
• Energy Savings: Compared to traditional models, this Non-excited Voltage Regulating Distribution Transformer reduces no-load losses by 20%, significantly lowering annual operating costs.
• Environmental Resilience: The dual-winding design combined with oil-immersed cooling allows stable operation in temperatures ranging from -30°C to +50°C, making it ideal for industrial and grid upgrades.
Production Process
The manufacturing of the Double-winding Non-excited Voltage Regulating Distribution Transformer strictly follows ISO 9001 standards and includes four core stages:
Winding Fabrication: Copper foil winding and Vacuum Pressure Impregnation (VPI) ensure uniform insulation layers on dual windings, minimizing eddy current losses.
Voltage Regulation System Assembly: Non-excited tap-changers are precisely installed via automated equipment and undergo 10kV power-frequency withstand voltage tests to guarantee reliability.
Oil Immersion and Sealing: Core components of this 3 Phase Oil-immersed Power Transformer are immersed in high-purity transformer oil and sealed with nitrogen to prevent air and moisture ingress.
Final Inspection: Twelve tests, including load loss, temperature rise, and partial discharge, are conducted to comply with IEC 60076 standards, ensuring zero-defect delivery.
Products parameter
| 30kva~2500kva 3-phase duplex winding non-excited tap-changing distribution transformer |
| Rated Capacity (kVA) | Voltage Combination and Tap range | Vector Group Symbo | No-load Loss(kW) | Load Loss(kW) | No-load current(%) | Short-circult Impedance Voitage(%) | ||
| HV(kV) | HVTap Range | LV(KV) | ||||||
| 30 | 20 | ±5 | 0.4 | Dyn11 Yzn11 Yyn0 |
0.10 | 0.69/0.66 | 2.1 | 5.5 |
| 50 | 0.13 | 1.01/0.96 | 2.0 | |||||
| 63 | 0.15 | 1.20/1.15 | 1.9 | |||||
| 80 | 0.18 | 1.44/1.37 | 1.8 | |||||
| 100 | 0.20 | 1.73/1.65 | 1.6 | |||||
| 125 | 0.24 | 2.08/1.98 | 1.5 | |||||
| 160 | 0.29 | 2.54/2.42 | 1.4 | |||||
| 200 | 0.34 | 3.00/2.86 | 1.3 | |||||
| 250 | 0.40 | 3.52/3.35 | 1.2 | |||||
| 315 | 0.48 | 4.21/4.01 | 1.1 | |||||
| 400 | 0.57 | 4.97/4.73 | 1.0 | |||||
| 500 | 0.68 | 5.94/5.66 | 1.0 | |||||
| 630 | 0.81 | 6.82 | 0.9 | 6.0 | ||||
| 800 | 0.98 | 8.25 | 0.8 | |||||
| 1000 | 1.15 | 11.33 | 0.7 | |||||
| 1250 | 1.38 | 13.20 | 0.7 | |||||
| 1600 | 1.66 | 15.95 | 0.6 | |||||
| 2000 | 1.95 | 19.14 | 0.6 | |||||
| 2500 | 2.34 | 22.22 | 0.5 | |||||
Applicable Environments of Non-excited Voltage Regulation Technology
• Industrial Applications: The dual-winding design of this 3 Phase Oil-immersed Power Transformer enables precise 10kV-to-0.4kV voltage conversion, ideal for factories and logistics centers requiring stable power.
• Energy Infrastructure: As a Non-excited Voltage Regulating Distribution Transformer, its 10kV high-voltage tolerance makes it suitable for wind and solar grid integration, ensuring reliable renewable energy connections.
• Harsh Conditions: The fully sealed oil-immersed structure of the Double-winding Non-excited Voltage Regulating Distribution Transformer resists high altitudes (up to 4,000m), salt spray, and dust, perfect for remote or coastal grids.
• Urban Power Supply: With low noise (≤60dB) and high reliability, it seamlessly integrates into critical 24/7 facilities like data centers and hospitals, delivering uninterrupted power.
basic structure
Why choose us?
SGS certification certificate
Packing and Delivery
Hot Tags: 30kva 10kv double-winding non-excited voltage regulating distribution transformer, China 30kva 10kv double-winding non-excited voltage regulating distribution transformer manufacturers, suppliers, factory, 2000kVA Oil Transformer, transformer waterproofing, transformer environmental protection, transformer safety inspection, Three Phase Outdoor Oil Immersed Transformer, 2000kVA 10kv Transformer
You Might Also Like
Send Inquiry