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Renewable Step-Up Transformers Series Oil-Immersed Transformers
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Renewable Step-Up Transformers — Solar & Wind Farm
Renewable step-up transformers raise the low-voltage output of photovoltaic and wind generation to the medium-voltage grid connection, with low no-load and load losses for high annual energy yield. Rated 100–5000 kVA, 0.4/0.69 kV low voltage to 10–35 kV high voltage, mineral-oil or sealed construction with 65 K temperature rise. Suitable for solar farms, wind farms, and energy-storage interconnection.
Key Features
- Low-voltage 0.4/0.69 kV input to 10–35 kV medium-voltage output for grid connection
- Low no-load and load losses to maximize annual energy yield
- Double-split or standard winding configuration for inverter groups
- Sealed or conservator tank construction for outdoor farm installation
- Surge and over-voltage coordination for renewable duty cycles
Applications
- Utility-scale solar farms
- Wind farm collector systems
- Energy-storage grid interconnection
- Distributed generation substations
Selection Guide
Voltage
Match the inverter LV (0.4/0.69 kV) and the grid HV (10/20/35 kV).
Efficiency
Select low-loss grades to maximize lifetime energy yield.
Cooling
Natural oil cooling (ONAN) standard; forced cooling for higher ratings.
- Frequently Asked Questions
What voltage does a PV step-up transformer handle?
Typically 0.4 kV or 0.69 kV on the inverter side, stepped up to 10 kV, 20 kV, or 35 kV for the grid connection.
Why are low losses important for renewables?
Lower no-load and load losses directly increase the annual energy yield of the solar or wind asset over its lifetime.
Can the transformer run continuously at partial load?
Yes — renewable step-up transformers are designed for the variable, partial-load duty of solar and wind generation.
Is a sealed tank available?
Yes, sealed corrugated-tank construction is available for low-maintenance outdoor farm installation.
Instant Selection & Quote Calculator
Select your specifications to get an estimated price instantly.
| Base price (interpolation) | $2,332 |
| × Product factor | ×1.0000 |
| × Country factor | ×1.0000 |
| × Copper-linked factor | ×1.0000 |
| + Options / accessories | $0 |
Aluminum winding — no copper linkage
Reference prices are for estimation only and do not constitute a formal offer.
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