Solar Transformer price
04-21 2025 | By:
The transformer models, parameter specifications and price information commonly used in photovoltaic farms are as follows, which are compiled from multiple sources:
1. Common models and applicable scenarios
SG series three-phase dry-type isolation transformer
Model examples: SG-200KVA, SG-2500KVA
Features: Applicable to voltage levels below 0.69kV, support customized input/output voltage (such as 800V→400V, 270V→380V), F-class insulation, efficiency ≥98%.
Application scenarios: small and medium-sized photovoltaic grid-connected systems, energy storage power stations, inverter matching.
SCB series dry-type transformers
Model examples: SCB10-2000KVA, SCB13-100KVA, SCB18-2000KVA
Features: low loss, high stability, suitable for boost or buck requirements, such as 690V→380V, 400V→220V.
Application scenarios: large photovoltaic power stations, box-type substations.
Oil-immersed transformer (S13/S14 series)
Model example: S13-2500KVA, S14-1000KVA
Features: high temperature resistance, anti-interference, suitable for high load scenarios, such as 690V→400V boost.
Application scenarios: outdoor large-scale photovoltaic power stations, high-voltage grid connection.
II. Key parameter specifications
Voltage range
Input/output: 270V→380V, 400V→220V, 690V→400V, 800V→380V, etc.
Isolation voltage: primary and secondary are shielded with copper foil to effectively isolate grid harmonics.
Capacity range
Small: 30KVA~50KVA (home or small power station).
Medium and large: 200KVA~2500KVA (commercial or industrial power station).
Technical indicators
Efficiency: ≥98% (dry-type transformer).
Insulation grade: Class F (temperature resistance 155℃).
Cooling method: natural air cooling or forced air cooling.
3. Price reference (RMB)
Small transformer (30KVA~50KVA)
Price range: ￥2000~￥19,800/unit
Example:
SG-30KVA (0.8/0.38kV): ￥19,800.
Three-phase 270V→380V isolation transformer: ￥2000~￥5000.
Medium and large transformer (200KVA~2500KVA)
Price range: ￥15,000~￥118,700/unit
Example:
SG-200KVA (outdoor waterproof): ￥15,000.
SCB10-2000KVA (10kV dry type): ￥15,600.
S13-2500KVA (oil immersed): ￥118,700.
Special customized models
Price range: fluctuates according to capacity, voltage ratio, and protection level. Please contact the manufacturer for quotation.
4. Purchase suggestions
Capacity matching: Select the transformer capacity according to the power of the photovoltaic system, and reserve 20%~30% redundancy.
Environmental adaptation: Dry or waterproof type is preferred for outdoor scenes, and heat dissipation design needs to be strengthened in high temperature and high humidity environments.
Certification requirements: Confirm that the product complies with CE, UL, GB/T 6450 and other standards.
For more detailed models and prices, please contact ZTELEC Electric Technology (Zhengzhou) Co., Ltd.: WhatsApp+8615716749170 E:[email protected]
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