Fully Sealed High-Capacity Oil-Immersed Distribution Transformer 10 kVA–2500 kVA

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Cooling method	Oil-immersed self-cooling
Delivery Time	15 work days
Payment Terms	Western Union,T/T,D/P,D/A,L/C
Rated capacity	10 KVA — 2500 KVA
Impedance voltage	4% - 6%
Frequency	50 Hz / 60 Hz
Loss grade	S11/S13/S20/S22
Connection group	Dyn11 / Yyn0
Model Number	S11 / S13 / S20 / S22
Brand Name	HuaDian
Certification	CE ISO9001 CCC
Place of Origin	Xi'An in China

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Cooling method	Oil-immersed self-cooling	Delivery Time	15 work days
Payment Terms	Western Union,T/T,D/P,D/A,L/C	Rated capacity	10 KVA — 2500 KVA
Impedance voltage	4% - 6%	Frequency	50 Hz / 60 Hz
Loss grade	S11/S13/S20/S22	Connection group	Dyn11 / Yyn0
Model Number	S11 / S13 / S20 / S22	Brand Name	HuaDian
Certification	CE ISO9001 CCC	Place of Origin	Xi'An in China

Fully Sealed Oil-Immersed Distribution Transformer

This fully sealed oil-immersed distribution transformer is engineered for outdoor power distribution applications across a broad capacity range from 10 kVA to 2500 kVA. Featuring a hermetically sealed corrugated tank construction, the transformer completely isolates the internal insulating oil from atmospheric exposure, effectively preventing oil oxidation, moisture ingress, and contamination. The maintenance-free design eliminates the need for routine oil sampling, filtering, or refilling, significantly reducing lifecycle operational overhead. With advanced low-loss core materials, excellent heat dissipation through corrugated fins, and robust short-circuit withstand capability, this transformer delivers reliable, efficient, and long-term performance in diverse outdoor environments including urban distribution networks, industrial facilities, commercial buildings, and renewable energy installations