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 readOil-Immersed Distribution Transformers
Built for outdoor substation duty, this three-phase oil-immersed power transformer is available at 1250 kVA and 1600 kVA within a broader 15 kVA–31500 kVA…
| Parameter | Value |
|---|---|
| Product Type | Three-Phase Oil-Immersed Distribution Transformer |
| Rated Capacity | 1250 kVA & 1600 kVA (range 15 kVA–31500 kVA) |
| Input Voltage | 33 / 35 kV |
| Output Voltage | 400 / 415 V |
| Frequency | 50 / 60 Hz |
| Phase | Three |
| Winding Material | Copper / Aluminium |
| Coil Structure | Fully Sealed Construction |
| Vector Group | Dyn11 / Yyn0 / Yd11 / YNd11 / Dyn5 |
| Service Life | 20–30 Years |
| Standard | IEC / GB |
| Certification | IEC, CE, ISO9001, ISO14001, ISO45001, CQC, GOST, EAC |
| Packing | Wooden Case |
| Package Size | 280 × 200 × 250 cm |
| Gross Weight | 5400 kg |
These specifications reflect the product data supplied. Final dimensions, materials, colors, and packaging are confirmed at the sample and order stage.
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.
Built for outdoor substation duty, this three-phase oil-immersed power transformer is available at 1250 kVA and 1600 kVA within a broader 15 kVA–31500 kVA lineup, converting 33/35 kV down to 400/415 V. A sealed tank with corrugated fins keeps the oil free from oxidation and removes the need for topping-up, which supports a 20 to 30 year service life outdoors. Windings are offered in copper or aluminium, manufactured to IEC and GB standards.
The steel tank is hermetically sealed and wrapped in corrugated cooling fins, keeping the transformer oil shielded from outside air so it resists oxidation and moisture while still shedding heat effectively. HV porcelain bushings and LV terminals sit on the tank cover, and pressure-relief plus oil-level protection are built into the structure. Together, this gives stable, low-loss performance with minimal upkeep.
This transformer suits outdoor and indoor distribution work for utilities, industrial plants, mining sites, oil fields, commercial complexes, and rural electrification projects that need dependable step-down from medium voltage.
Capacity, voltage ratio, vector group, winding material (copper or aluminium), tap changer type (off-load or on-load), and bushing configuration can all be adjusted to match project needs.
The rated capacity is 1250 kVA & 1600 kVA (range 15 kVA–31500 kVA), with an input voltage of 33 / 35 kV. Other ratings in the same series are quoted on request.
A fully sealed, corrugated-fin tank that keeps oil from oxidizing, requires no breathing, and cuts maintenance down; High efficiency delivered through low no-load loss and a low operating temperature; Rated for 20 to 30 years of service, holding up well in tough outdoor conditions.
Capacity, voltage ratio, vector group, winding material (copper or aluminium), tap changer type (off-load or on-load), and bushing configuration can all be adjusted to match project needs.
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.