इलेक्ट्रॉनिक घटक आपूर्तिकर्ता | ट्रान्सफ़ॉर्मर, कुचालक, इन्वर्टर
Neglected photovoltaic core equipment
With the continuous explosive growth of global photovoltaic installed capacity in 2026, उद्योग का ध्यान अक्सर मॉड्यूल और इनवर्टर पर होता है, but a key equipment is often overlooked – solar transformers.
In modern photovoltaic systems, transformers not only undertake the basic function of voltage conversion, but also gradually evolve into intelligent, digital, and monitored key node devices, playing a core role in improving grid stability, system efficiency, and energy dispatch capabilities.



What is a photovoltaic transformer?
Photovoltaic transformers are mainly used for:
- Step up the low-voltage AC power (usually 400V-800V) output by the inverter
- Realize long-distance power transmission (such as 10kV-220kV)
- Ensure grid connection safety and electrical isolation
| अवयव | समारोह |
|---|---|
| PV Panels | Generate DC electricity |
| Inverter | Converts DC → AC |
| स्टेप-अप ट्रांसफार्मर | Raises voltage for grid |
| Switchgear | Controls and protects system |
| Grid Connection | Power distribution |
The main types of photovoltaic transformers
1.तेल में डूबा ट्रांसफार्मर
- Suitable for large ground power stations
- उत्कृष्ट ताप अपव्यय प्रदर्शन
- strong carrying capacity
2.शुष्क प्रकार का ट्रांसफार्मर
- Commonly used in industrial and commercial rooftop photovoltaics
- High safety (oil-free)
- Low maintenance cost
3.Box type transformer (pre installed)
- integrated design
- आसान स्थापना
Comparison Table
| प्रकार | क्षमता | Maintenance | आवेदन |
|---|---|---|---|
| Oil-Immersed | ★★★★★ | मध्यम | Large solar farms |
| Dry-Type | ★★★★ | Low | Buildings |
| Pad-Mounted | ★★★★ | Low | Distributed PV |
Analysis of Key Technical Parameters
When choosing a photovoltaic transformer, it is important to pay attention to:
| Parameter | विवरण |
|---|---|
| मूल्यांकित शक्ति (kVA/MVA) | Capacity of transformer |
| Voltage Ratio | Input vs output voltage |
| वेक्टर समूह | Phase displacement (जैसे, Dyn11) |
| Cooling Method | ओनान, बंद, वगैरह. |
| Impedance | Impacts fault current |
2026 Technology Trends: Intelligent Transformers
1.AI predictive maintenance
- Real time monitoring of temperature, oil quality, and load
- Early warning of faults to reduce downtime risks
2.Integration of smart grid
- Realize dynamic load adjustment
- Automatic voltage optimization
3.Digital twin technology
- Building a virtual model
- Optimize operation and maintenance strategies



Design Challenges in Photovoltaic Applications
1.Strong output volatility
- Load instability caused by changes in lighting conditions
- High adaptability design is required
2.High temperature environment
- Regions such as the Middle East and Africa have extremely high temperatures
- Strict requirements for cooling system
3.Harmonic problems
- Inverter generates harmonics
- Affects the lifespan of transformers
Case analysis: 100MW photovoltaic power station
| Parameter | Value |
|---|---|
| क्षमता | 100 MW |
| Transformer Type | Oil-immersed |
| वोल्टेज | 0.8kV → 132kV |
| Cooling | ONAN/ONAF |
| क्षमता | >99% |
How to choose a suitable photovoltaic transformer?
Suggest evaluating from the following dimensions:
- Project scale (kW/MW)
- Installation environment
- Grid connection requirements
- cooling method
- Full lifecycle cost
Luoyang Datang Energy Technology Co., Ltd. आर को एकीकृत करने वाला एक उच्च तकनीक उद्यम है&डी, ट्रांसफार्मर जैसे बिजली उपकरणों का निर्माण और आपूर्ति, नये ऊर्जा घटक, वितरण अलमारियाँ और इनवर्टर. तकनीकी नवाचार को मूल में रखते हुए, हम वैश्विक ग्राहकों की सेवा के लिए उच्च-विश्वसनीयता और उच्च-प्रदर्शन वाले पावर समाधान बनाने पर ध्यान केंद्रित करते हैं. सख्त गुणवत्ता नियंत्रण प्रणाली और अंतरराष्ट्रीय मानक प्रमाणीकरण के साथ, हम उत्कृष्ट उत्पादों का उत्पादन जारी रखते हैं और ग्राहकों को सुरक्षित और स्थिर बिजली प्रणाली बनाने में सक्षम बनाते हैं.






