This 20kV three‑phase dry‑type transformer features copper windings with epoxy resin casting. The oil‑free construction prevents leakage and fire hazards, performing well in humid and dusty indoor conditions. It is commonly installed in indoor park substations, supporting wind and solar power projects, large manufacturing plants, urban commercial complexes and underground power rooms, where fire safety is critical and oil‑storage facilities cannot be arranged. Temperature control and forced air cooling can be fitted. Packed in wooden crates, it can be put into service after simple on‑site commissioning with low‑maintenance demand.
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