630-8000kVA Photovoltaic Distribution Transformer 35kv-13.2kv Three Phase Output 220V380V110V

As global demand for renewable energy continues to rise, photovoltaic (PV) distribution transformers have become a critical component in solar power stations. ZTelec Electric, a professional transformer manufacturer with over 60 years of engineering experience, provides 630–8000 kVA PV distribution transformers designed for high efficiency, grid compatibility, and long-term reliability.

These transformers are available in 35 kV, 13.2 kV, and custom voltage combinations with three-phase low-voltage outputs such as 220V, 380V, and 110V. Both oil-immersed and dry-type configurations are available, and full customization is supported.

Common Specifications (Standard & Custom Options)

All models can be fully customized according to PV plant capacity, grid code, installation environment, and project requirements.

Key Application Scenarios

ZTelec Electric PV transformers are widely used in:

1. Utility-Scale Solar Farms

Used between central inverters and the grid to boost LV to MV.

2. Commercial & Industrial PV Plants

Reliable for factories, industrial parks, and energy-intensive facilities.

3. Distributed Rooftop Solar

Compact pad-mounted versions available for tight installation spaces.

4. Energy Storage + PV Hybrid Systems

Supports bidirectional operation and integrated BESS connections.

5. Desert, Plateau, and Coastal Solar Projects

Special anti-corrosion and high-altitude configurations available.

Advantages of ZTelec Electric Photovoltaic Transformers

1. High Efficiency & Low Loss

• Optimized magnetic core design

• Meets IEC & DOE energy efficiency requirements

• Reduces long-term operating costs

2. Excellent Temperature Control

• Oil-immersed or dry-type cooling

• Suitable for hot climates and 24-hour continuous operation

3. Strong Short-Circuit Resistance

• High-strength winding structure

• Ensures stable performance under high current surges

4. Long Service Life

• Premium insulation materials (DMD, NOMEX, densified wood)

• Moisture-resistant and thermally stable design

5. Flexible Voltage Customization

• 35 kV, 13.2 kV, 11 kV, 10 kV, 33 kV, etc.

• Multi-output LV for special equipment

6. Complete Factory Testing

• Partial discharge

• Heat run test

• Induced voltage withstand

• Ratio test, impedance test, and more

7. Manufacturer Advantage – ZTelec Electric

• Over 60+ years of production experience

• ISO9001, IEC, CE certified

• Strong R&D and OEM/ODM customization capability

• Global supply to Europe, USA, Australia, Southeast Asia, Middle East

Example Project Cases

 Case 1 – 20 MW Solar Farm, Queensland, Australia

• Transformer used: 2500 kVA 35 kV oil-immersed PV transformer

• Cooling: ONAN

• Special features: High-corrosion-resistant paint due to coastal environment

• Result: Stable grid connection with 99.1% operational availability after 18 months

 Case 2 – 50 MW PV + ESS Hybrid Plant, Telangana, India

• Transformer used: 6300 kVA 33 kV dry-type PV transformer

• Customizations: Low-temperature rise, high-humidity protection

• Result: Excellent performance under high ambient temperatures (48°C)

Why Choose ZTelec Electric?

• Direct manufacturer — factory price, fast delivery

• Complete ISO-certified production line

• Experienced engineering team for PV project design

• Global after-sales service and technical support

• 100% pre-shipment testing

• Customized packaging and installation guidance

Conclusion

The 630–8000 kVA photovoltaic distribution transformer from ZTelec Electric is engineered to meet the demanding requirements of modern solar power systems. With wide voltage options, high efficiency, strong reliability, and full customization capability, it is an ideal solution for utility-scale, commercial, and industrial PV projects.

If you need a transformer for your next solar project, ZTelec Electric provides professional design + manufacturing + testing + export services.