When you want to expand your solar business, you need equipment that works well and is reliable. With an efficiency rating of over 98.5% and a proven protection rating of IP54 for use in harsh outdoor settings, our Combined Transformer for Photovoltaic Power Generation is an enterprise-level option. We've successfully completed major projects like the GCL Photovoltaic Industrial Park and XCMG Group factory upgrades with the help of our team of 15 senior engineers and over 120 sets of advanced production equipment, such as CNC automatic winding machines and microcomputer-controlled gradient curing furnaces. Our integrated design cuts down on mounting space by up to 40% and can handle power blocks from 500kVA to 5MVA. We have 18 patents and use strict ISO9001 quality control at every stage of production.

You probably already know how hard it can be to turn solar energy into power that can be used on the grid. A combined transformer combines several tasks into a single, small machine. It does step-up change, electrical separation, and power conditioning all at the same time.
The device raises the low-voltage AC output from your transformers to a level that can connect to the power grid. This level is usually between 10kV and 35kV. With this combination, you don't need separate low-voltage cabinets or a lot of wires on-site.
Space optimization: The way things are usually set up takes up valuable land. Our integrated design saves you up to 40% of installation room, which is very important for projects where every square meter is important, like roof installs.
Harmonic Management: It is possible for photovoltaic systems to damage normal transformers by producing high-frequency harmonic distortion. Our units have strong harmonic resistance that was designed to work with PV systems.
Environmental Resilience: The IP54 protection grade makes sure that your equipment keeps working even if you put it in a desert, near the coast, or at a high elevation.
Grid Stability: Power factor correction and safety methods built in keep the power quality stable, which is one of the biggest problems with solar operations.

Equipment is pushed to its limits in deserts. Changes in temperature can hit 55°C, and sand can get into motor parts and damage them.
Our fully sealed structure keeps sand out and handles high heat without losing its shape. We've made special cooling systems that work well even when the temperature outside is very high.
In dry areas, projects have shown that they can keep running even during dust storms that make it impossible to see more than 50 meters ahead.
Normal equipment breaks down in months when exposed to salt air. You need safety for the sea.
Our units have improved moisture-sealing technology and special coats that keep them from rusting. They have worked well in places with high salt levels and humidity levels above 90%.
The small size is great for floating PV systems that need to make the best use of room and weight distribution.
Your business clients need options that work well with the building systems that are already in place. There is never enough space.
The transformers we sell can change 480V to 4160V and are small enough to fit in small areas. They work successfully in industrial areas with ten times the amount of electromagnetic interference that is allowed in homes.
Facilities that make things and data centres gain the most from the stable power quality and lower upkeep needs.
Agricultural photovoltaic projects require equipment that doesn't interfere with farming operations. The space between crop rows is limited.
Our pre-wired, plug-and-play design reduces on-site commissioning time by up to 60%. You can install between crop rows or on platforms without extensive civil engineering work.
This streamlined installation process means less disruption to ongoing agricultural activities.
| Parameter | Specification | Your Benefit |
|---|---|---|
| Power Capacity | 500kVA to 5MVA | Scalable for projects of any size |
| Voltage Rating | 480V to 35kV step-up | Grid-compatible output |
| Efficiency | 98.5% - 99.2% | Minimized power losses |
| Protection Rating | IP54 or higher | Outdoor harsh environment operation |
| Operating Temperature | -40°C to +45°C | Wide climate adaptability |
| Altitude Capability | ≤ 300m (standard) | Customizable for high-altitude projects |
| Impedance | 6-8% | Optimized grid integration |
| Temperature Rise | ≤65K (oil-filled) | Extended equipment lifespan |
| Noise Level | <65dB at 1m | Minimal environmental impact |
| Service Life | 30+ years | Long-term investment protection |
You should install our transformers in locations meeting these environmental parameters:
If your project conditions exceed these parameters, we'll work with you to develop customized solutions.
Solar power is naturally sporadic and changes over time. Normal transformers have trouble with these changes.
We made sure that our Combined transformer for photovoltaic power generation units can handle sudden peaks in power when clouds pass and production goes up. The harmonic resistance stops the warping that comes from using an amplifier.
Every dollar that goes into the project is being watched. Our unified style really saves you money.
You can save money on both tools and installation by getting rid of the need for separate low-voltage boxes. Because the size is small, there is less civil engineering work to do and the supports are smaller.
The pre-wired setup cuts starting time by a large amount, which means you can start making money faster.
Grid repair shouldn't put people in danger. Our built-in high-voltage load switch has break places that are easy to see.
This stops PV power from going back into the grid while repair work is being done. Make sure your team and the service workers are safe.
We don't just make tools; we've also provided full answers for big projects in many different fields.
As an example of our work, we designed the Xuzhou Rail Transit Network Control Centre with two separate power supplies to make sure it was completely safe. The GCL Photovoltaic Industrial Park was finished ahead of time and to very high standards.
With over 120 sets of advanced machinery and a technical team holding 18 patents, we bring deep expertise to every project.

Every transformer undergoes comprehensive quality control from raw material procurement through final delivery.
We implement strict monitoring at each production stage:
Our "zero defects" philosophy means no unqualified product leaves our facility. We operate under ISO9001 quality management system standards.
Your projects require certified equipment. Our products meet international standards with:

Our quality inspection laboratory uses advanced testing equipment to verify every specification. We don't rely on third-party testing alone—we control quality at the source.
Q: What's the typical lifespan of your combined transformers?
A: Our units are engineered for 30+ years of service life under normal operating conditions. The advanced cooling systems and high-quality materials we use ensure long-term reliability. Regular maintenance according to our guidelines maximizes this lifespan.
Q: Can you customize transformers for extreme environments?
A: Absolutely. We've delivered solutions for desert installations with temperatures exceeding 60°C, coastal projects with high salt content, and high-altitude locations above standard specifications. Our engineering team will assess your specific conditions and develop appropriate modifications.
Q: How quickly can you deliver after order confirmation?
A: Delivery timelines vary based on specifications and customization requirements. Standard configurations typically ship within 8-12 weeks. We've demonstrated the ability to complete major projects ahead of schedule—like the GCL Photovoltaic Industrial Park—without compromising quality.
Q: What maintenance does a product require?
A: Maintenance requirements are significantly reduced compared to traditional separate systems. Regular inspections should include oil level and quality checks (for oil-filled units), connection point inspections, and cooling system verification. We provide detailed maintenance schedules and can arrange service contracts.
Q: Do you provide installation support and training?
A: Yes. We offer comprehensive support including installation guidance, on-site commissioning assistance, and operator training. Our philosophy of "service paramount" means we're with you throughout the entire project lifecycle.
Q: How do your transformers handle grid fluctuations common in developing regions?
A: Our units incorporate built-in surge protection withstanding lightning strikes up to 200kA and operate reliably in areas with frequent voltage fluctuations. We've successfully deployed equipment in regions with unstable grid conditions, maintaining stable operation throughout.
Q: Can these transformers integrate with existing monitoring systems?
A: Yes. Our product can integrate with standard SCADA systems and remote monitoring platforms. We can customize communication protocols to match your existing infrastructure.
Q: What sets your transformers apart from imported alternatives?
A: You get equivalent or superior technical specifications at competitive pricing, plus the advantage of working directly with the manufacturer. Our 20+ years of experience, 18 patents, and proven project track record demonstrate our capability. We also provide faster response times and better understand regional requirements compared to distant international suppliers.
Ready to Optimize Your Combined transformer for photovoltaic power generation Solar Project? Get in touch with our technical team to discuss your specific requirements. Email us at tuojie@electricinchina.com for detailed specifications and customized solutions.
