Power Transformers (up to 110 kV)
This large three-phase oil-immersed power transformer serves extra-high-voltage transmission and distribution networks, stepping 220 kV or 230 kV down to 35…
| Parameter | Value |
|---|---|
| Product Type | Oil-Immersed Power Transformer |
| Rated Capacity | 31500 kVA – 420000 kVA |
| Input Voltage | 220 kV / 230 kV |
| Output Voltage | 35 kV / 66 kV |
| Frequency | 50 / 60 Hz |
| Phase | Three |
| Coil Number | Multi Winding |
| Coil Structure | Fully Sealed Construction |
| Winding Material | Copper / Aluminium |
| Vector Group | Dyn11 / Yyn0 |
| Application | Power Distribution System |
| Standard | IEC / GB |
| Certification | IEC, CE, ISO9001, ISO14001, ISO45001, CQC, GOST, EAC |
| Service Life | 20 Years |
| Packing | Wooden Case |
| Package Size | 280 × 200 × 250 cm |
| Gross Weight | 5400 kg |
Figures shown reflect the supplied product data. Exact dimensions, materials, finish and packaging are confirmed at sample approval and order confirmation.
Designed and tested to IEC / GB. Millenium production is certified to ISO 9001, ISO 14001 and ISO 45001; the product family carries CE (ECM), UDEM attestation and an EAC declaration of conformity. Every unit passes routine factory tests before dispatch.
This large three-phase oil-immersed power transformer serves extra-high-voltage transmission and distribution networks, stepping 220 kV or 230 kV down to 35 kV or 66 kV. It spans a wide capacity range from 31500 kVA to 420000 kVA, using copper or aluminium windings inside a fully sealed tank with a top-mounted conservator and dense radiator banks for stable thermal performance under sustained heavy load at 50/60 Hz.
Fits 220/230 kV transmission substations, regional grid interconnection, large industrial power supply, and utility-scale power distribution projects.
Capacity, voltage ratio, vector group, cooling method, tap changer and certification can be tailored to project specification, with copper or aluminium winding material available on request.
Confirm the rated capacity, primary/secondary voltage, frequency, vector group and applicable standard (IEC/GB) before placing an order.
The rated capacity is 31500 kVA – 420000 kVA, with an input voltage of 220 kV / 230 kV. Other ratings in the same series are quoted on request.
Converts 220 kV / 230 kV primary voltage to 35 kV / 66 kV secondary; Broad capacity span from 31500 kVA up to 420000 kVA; Fully sealed, multi-winding construction.
Capacity, voltage ratio, vector group, cooling method, tap changer and certification can be tailored to project specification, with copper or aluminium winding material available on request.
Designed and tested to IEC / GB. Millenium production is certified to ISO 9001, ISO 14001 and ISO 45001, and the product family carries CE (ECM), UDEM attestation and an EAC declaration of conformity.
Quotation
Tell us the rating, voltages, frequency, quantity and destination. An engineer replies with a technical proposal, usually within one working day.
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