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Combined transformer for photovoltaic power generation

1. Voltage Rating (Customizable upon request): Low Voltage: 0.4kV, 0.69kV, 1.14kV High Voltage: 10kV, 35kV 2. Capacity Range: 500kVA~3150kVA (Mainstream for Photovoltaics) 3. Number of Phases: Three-phase 4. Connection Group: Dyn11, Yyn0, Yd11 5. Voltage Regulation Method: Off-load voltage regulation ±2×2.5% or on-load voltage regulation OLTC 6. Cooling Method: ONAN oil-immersed self-cooling 7. Protection Rating: IP67 (Fully Sealed) 8. Operating Environment: Outdoor, High-altitude, Desert, Saline-alkali Land 9. Short-Circuit Impedance: Customized according to national standards/photovoltaic power station requirements

Product Description

Combined Transformer for Photovoltaic Power Generation 

Our Combined transformer for photovoltaic power generation delivers enterprise-grade performance in a compact package. The ZGS11-ZG series integrates transformer, load switch, and high-voltage fuses into one sealed unit, reducing installation space by 67% compared to traditional European-style substations. With capacity ranging from 500kVA to 3150kVA and voltage ratings up to 35kV, this solution handles demanding solar applications. Its IP67-rated fully sealed design withstands extreme environments—deserts, high-altitude regions, and saline-alkali lands—while maintaining maintenance-free operation for years.

transformer for photovoltaic power generation

Why Choose Our Solar Transformer Solution?

Space-Saving Design

You'll appreciate how our coordinates approach spares important genuine domain. The combined unit involves fair one-third the impression of ordinary hardware. This implies lower arrive costs and quicker location planning for your photovoltaic installation.

Built for Unforgiving Environments

Solar ranches frequently work in challenging areas. Our transformer's galvanized or stainless steel outside experiences shot impacting, pickling, and phosphating treatment. Different coating layers give predominant erosion resistance and UV assurance. Whether you're building in coastal zones or dusty forsake districts, this gear stands strong.

Maintenance-Free Operation

Time is cash in renewable vitality ventures. The completely fixed structure disposes of schedule support needs. Oil-immersed self-cooling (ONAN) keeps components at ideal temperatures without outside mediation. You can center on vitality generation, not hardware upkeep.

Complete Protection System

Safety matters in high-voltage applications. Our combined transformer for photovoltaic power generation features full-range high-voltage fuse protection. The integrated load switch enables convenient operation. Short-circuit resistance ensures your investment stays protected during grid disturbances.

transformer for photovoltaic power generation

Technical Specifications

Parameter Specification
Voltage Rating (High Voltage) 10kV, 35kV
Voltage Rating (Low Voltage) 0.4kV, 0.69kV, 1.14kV
Capacity Range 500kVA ~ 3150kVA
Number of Phases Three-phase
Connection Group Dyn11, Yyn0, Yd11
Voltage Regulation Off-load ±2×2.5% or OLTC
Cooling Method ONAN (Oil Natural Air Natural)
Protection Rating IP67 (Fully Sealed)
Operating Environment Outdoor, High-altitude, Desert, Saline-alkali
Short-Circuit Impedance Customizable per standards

Key Advantages

Compact & Lightweight

Installation gets to be less difficult with decreased weight and measurements. Your team spends less time situating and interfacing equipment.

Low Misfortune, Moo Noise

Energy effectiveness things in sun powered operations. Our transformers minimize control misfortune amid change. Calm operation keeps your office neighbor-friendly.

Flexible Configuration

Every sun powered extend has one of a kind necessities. We customize voltage evaluations, capacity, and impedance to coordinate your determinations. Generation ordinarily takes 6-30 days depending on complexity.

Global Benchmarks Compliance

Quality you can believe comes certified. Our items meet ISO 9001:2015, CE, UL, and IEC guidelines. Vitality proficiency carries CQC and PCCC certification.

Why Partner with Lijie Electric?

Our two fabricating bases in Xuzhou and Nantong span 500,000 square meters. Over 160 engineers with progressed degrees drive advancement. Yearly deals surpassing 5 billion RMB illustrate advertise confidence.

We've provided sun oriented ventures over Australia, Modern Zealand, India, Vietnam, Malaysia, Indonesia, Kazakhstan, Egypt, and Kenya. Each establishment benefits from comprehensive specialized documentation, establishment direction, and responsive after-sales bolster.

Frequently Asked Questions

Q: What makes this transformer appropriate for photovoltaic applications?

A: The plan particularly addresses sun powered control requirements—handling variable loads, withstanding open air conditions, and giving compact integration that diminishes balance-of-system costs.

Q: Can you customize the transformer for uncommon voltage requirements?

A: Completely. We tailor voltage evaluations, association bunches, and impedance to your extend details. Fair give your specialized requirements.

Q: How does the fixed plan advantage long-term operation?

A: The IP67-rated walled in area avoids dampness, tidy, and contaminants from entering. This kills debasement of protection liquid and inside components, guaranteeing decades of solid service.

Q: What around establishment in extraordinary climates?

A: Our item works dependably in temperatures from forsake warm to high-altitude cold. The specialized coating stands up to sand disintegration and coastal salt shower.

Q: Do you provide technical support after purchase?

A: Yes. We supply complete drawings, operation manuals, test reports, spare parts, and installation guidance. Our team remains available for technical consultation throughout your transformer's service life.

Ready to Power Your Solar Project?

Contact our technical team at lijieelectrical@gmail.com to discuss your Combined transformer for photovoltaic power generation specific requirements and receive a customized solution.

Customer reviews background image

Here are some reviews from our users:

April 27, 2025

With a tight project schedule, the manufacturer delivered on time, and on-site technical personnel provided guidance throughout the entire installation and commissioning process; the collaboration was highly efficient and hassle-free.

July 2, 2025

During the preliminary phase, a selection plan was custom-tailored based on the actual site load requirements, resulting in a high degree of parameter compatibility. After-sales support responds within two hours, and ongoing technical support for operation and maintenance is comprehensive; we feel completely confident in a long-term partnership.

November 18, 2025

Deployed as a supporting component for a 35kV grid-connection project at a photovoltaic power station, the equipment operates for an average of 16 hours daily. It demonstrates excellent control over no-load losses, ensures smooth power generation and grid integration, and effectively reduces the station's overall energy consumption.

January 30, 2026

Under the continuous, high-load operating conditions of a factory production line, the equipment maintains stable electrical parameters and exhibits strong overload resistance, thereby guaranteeing an uninterrupted power supply for industrial production.

April 3, 2026

Integrated as a supporting component for a new energy photovoltaic grid-connection system, the manufacturer provided professional technical coordination and timely after-sales support, ensuring seamless adaptation to the specific electrical operating conditions required for grid integration.

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