Key Features

Three-phase oil-immersed design — 10kV/0.4kV step-down for industrial, urban and mining grids.
Low-loss silicon steel core — Grain-oriented steel with step-lap construction cuts no-load losses and improves operating efficiency.
Copper windings — High mechanical strength and excellent short-circuit withstand for long-term reliability.
Natural oil circulation cooling (ONAN) — Corrugated fin radiator design ensures stable temperature rise without forced cooling.
Sealed, maintenance-free tank — Corrugated or conservator-type tank keeps moisture out and extends service life.
Quiet operation — Low noise and low temperature rise make it suitable for urban and residential installations.

Typical Applications

Industrial plants and manufacturing workshops
Urban 20kV distribution networks and city power supply
Mining sites, infrastructure and construction projects
Small substations and prefabricated (box-type) substations
Commercial buildings, shopping malls, and hotels
Renewable energy step-down / step-up stations (PV / wind auxiliary supply)

Standards & Certifications
Products:CE certificates
Design Standards: IEC60076 Standard
Quality System: ISO 9001
Factory certificates:ISO14001,ISO45001