Pembekal Komponen Elektronik | Transformers, Induktor, Penyongsang
Neglected photovoltaic core equipment
With the continuous explosive growth of global photovoltaic installed capacity in 2026, tumpuan industri selalunya pada modul dan penyongsang, 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
| Komponen | Fungsi |
|---|---|
| PV Panels | Generate DC electricity |
| Inverter | Converts DC → AC |
| Pengubah Langkah Naik | Raises voltage for grid |
| Switchgear | Controls and protects system |
| Grid Connection | Power distribution |
The main types of photovoltaic transformers
1.Transformer terendam minyak
- Suitable for large ground power stations
- Prestasi pelesapan haba yang sangat baik
- strong carrying capacity
2.Dry type transformer
- Commonly used in industrial and commercial rooftop photovoltaics
- High safety (oil-free)
- Low maintenance cost
3.Box type transformer (pre installed)
- integrated design
- Pemasangan yang mudah
Comparison Table
| taip | Kecekapan | Penyelenggaraan | Permohonan |
|---|---|---|---|
| Direndam Minyak | ★★★★★ | Medium | Large solar farms |
| Jenis Kering | ★★★★ | 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 | Penerangan |
|---|---|
| Kuasa Dinilai (kVA/VAT) | Capacity of transformer |
| Nisbah Voltan | Input vs output voltage |
| Kumpulan Vektor | Phase displacement (cth., Dyn11) |
| Kaedah Penyejukan | ONAN, HIDUP MATI, dll. |
| 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 |
|---|---|
| Kapasiti | 100 MW |
| Jenis Transformer | Oil-immersed |
| Voltan | 0.8kV → 132kV |
| Menyejukkan | ONAN/ONAF |
| Kecekapan | >99% |
How to choose a suitable photovoltaic transformer?
Suggest evaluating from the following dimensions:
- Project scale (kW/MW)
- Installation environment
- Grid connection requirements
- kaedah penyejukan
- Full lifecycle cost
Luoyang Datang Energy Technology Co., Ltd. ialah perusahaan berteknologi tinggi yang menyepadukan R&D, pembuatan dan pembekalan peralatan kuasa seperti transformer, komponen tenaga baharu, kabinet pengedaran dan penyongsang. Dengan inovasi teknologi sebagai teras, kami memberi tumpuan kepada mencipta penyelesaian kuasa yang boleh dipercayai dan berprestasi tinggi untuk memberi perkhidmatan kepada pelanggan global. Dengan sistem kawalan kualiti yang ketat dan pensijilan standard antarabangsa, kami terus mengeluarkan produk cemerlang dan membolehkan pelanggan membina sistem kuasa yang selamat dan stabil.







