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Technical Article

 

800 kVA Dry‑Type Step‑up Transformer for Solar Plants

10-28 2025 | By:

Small-to-medium PV plants require compact yet reliable transformers. ZTelec’s 800 kVA dry-type step-up transformer provides excellent efficiency and low maintenance for rooftop and distributed solar installations.

Specifications Table

Parameter Value
Rated Capacity 800 kVA
Primary Voltage 0.69 kV / 1 kV
Secondary Voltage 10 kV
Cooling Method AN (Air Natural)
Insulation Class F class resin
Impedance 4–6 %
Noise Level ≤ 60 dB
Mounting Type Indoor / Semi‑outdoor

PV Applications

  • Step-up transformer at inverter output for community or industrial rooftop PV.

  • Easy installation near inverters with minimal footprint.

  • Ideal for regions with moderate ambient temperatures.

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Top Purchasing Tips

  1. Confirm capacity aligns with solar inverter output.

  2. Ensure impedance and short-circuit withstand meets grid code.

  3. Verify environmental suitability: indoor vs. semi-outdoor.

  4. Ask for customization options including branded switchgear integration.

ZTelec Advantage

  • Certified PV transformer manufacturer with direct factory supply.

  • Fast delivery and worldwide export experience.

  • Custom voltage, tap changers, and accessories integration (ABB/Schneider).











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