Transformer Factory Acceptance Testing (FAT): Routine Tests, Type Tests and How to Witness Them
Guide to IEC 60076 transformer FAT: routine and type tests, acceptance tolerances, documentation, and how to arrange witness testing.
· 9 min readPower Transformers (up to 110 kV)
Rated at 50 MVA, this three-phase oil-immersed transformer steps 110–230 kV down to 20, 35 or 66 kV, purpose-built as a step-up/step-down unit for large…
| Parameter | Value |
|---|---|
| Product Type | Three-Phase Oil-Immersed Power Transformer |
| Rated Capacity | 50 MVA |
| Input Voltage (HV) | 110 / 230 kV |
| Output Voltage (LV) | 20 / 35 / 66 kV |
| Frequency | 50 / 60 Hz |
| Phase | Three |
| Winding Material | Copper / Aluminium |
| Vector Group | Dyn11 / Yyn0 |
| Cooling | ONAN / ONAF (oil-immersed, radiator) |
| Standard | IEC 60076 / GB |
| Certification | IEC 60076, ISO9001, ISO14001, CE, CQC |
| Packing | Wooden Case |
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 60076 / 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.
Rated at 50 MVA, this three-phase oil-immersed transformer steps 110–230 kV down to 20, 35 or 66 kV, purpose-built as a step-up/step-down unit for large solar-PV plants and utility substations. Manufactured to IEC 60076 with a sealed steel tank, radiator cooling and a conservator oil-expansion system, it provides efficient and dependable transformation for connecting renewable generation to the grid. Windings are offered in copper or aluminium.
The tank carries high-voltage porcelain bushings, a top-mounted conservator for oil expansion, side radiator banks, and a cabinet for monitoring and protective equipment. Purpose-built for solar-PV interconnection, the oil-immersed design maintains efficient cooling and stable insulation for dependable transmission-class performance.
Fits solar-PV and other renewable-energy plants, utility and industrial substations, and transmission/distribution networks needing 110–230-kV-class transformation.
Capacity, HV/LV voltage, vector group, tap-changer type, cooling class and fittings can be matched to a project's single-line requirements.
The rated capacity is 50 MVA, with an input voltage of 110 / 230 kV. Other ratings in the same series are quoted on request.
50 MVA rating spans the 110–230 kV transmission class for solar grid connection; Sealed oil-immersed tank with radiator cooling and conservator; Dyn11 / Yyn0 vector groups fit substation single-line diagrams.
Capacity, HV/LV voltage, vector group, tap-changer type, cooling class and fittings can be matched to a project's single-line requirements.
Designed and tested to IEC 60076 / 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.