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)
This three-phase oil-immersed transformer is rated at 40 MVA and steps 66 kV down to 15 or 20 kV, built with pure-copper windings for solar-PV plant grid…
| Parameter | Value |
|---|---|
| Product Type | Three-Phase Oil-Immersed Power Transformer |
| Rated Capacity | 40 MVA |
| Input Voltage (HV) | 66 kV |
| Output Voltage (LV) | 15 / 20 kV |
| Frequency | 50 / 60 Hz |
| Phase | Three |
| Winding Material | Pure Copper |
| 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.
This three-phase oil-immersed transformer is rated at 40 MVA and steps 66 kV down to 15 or 20 kV, built with pure-copper windings for solar-PV plant grid connection and utility substation service. Made to IEC 60076 with a sealed steel tank, radiator cooling and a conservator oil-expansion system, it delivers low-loss, dependable transformation for renewable-energy projects.
High-voltage porcelain bushings mount on the sealed tank alongside a top conservator for oil expansion, side radiator banks, and a cabinet for monitoring and protective devices. The pure-copper windings cut losses, while the oil-immersed construction keeps cooling efficient and insulation stable for solar-PV grid service.
Suits solar-PV and other renewable-energy plants, utility and industrial substations, and transmission/distribution networks needing 66-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 40 MVA, with an input voltage of 66 kV. Other ratings in the same series are quoted on request.
Pure-copper windings minimize loss and maximize efficiency; 40 MVA rating fits the 66 kV solar-PV grid-connection class; Sealed oil-immersed tank with radiator cooling and conservator.
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.