Catalogue / Power transformers
Power transformer 3-phase oil-immersed ONAN/ONAF, Eco seriesSample
by Brahmaputra Transformers (Sample) · verified by BARREL
Price for verified buyers
Ordered and invoiced through BARREL — one contract, one GST invoice.
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Power transformer 3-phase oil-immersed ONAN/ONAF from Brahmaputra, Eco series: 5 rating options between 20 MVA and 160 MVA. Highlights: CRGO core with step-lap joints, short-circuit tested design and routine, type and special tests. Typically used for transmission utilities, industrial plants and generator step-up. Designed and tested to IS 2026, IEC 60076 and CBIP Manual 317. Lead time 16-24 weeks; delivers to East & North-East India. Sample listing: illustrative data for testing BARREL Shop, not a real offer.
- Brand
- Brahmaputra
- Model
- BRA-F73 series
- Listing type
- Product
- Unit
- nos
- Minimum order
- 5 nos
- Lead time
- 16-24 weeks
- Warranty
- 36 months from supply
- Standards
- IS 2026, IEC 60076, CBIP Manual 317
- Delivers to
- East & North-East India
- GST rate
- 18 %
- Country of origin
- India
- Packaging
- Corrugated box on pallet
- Delivery terms
- FOR site, freight included
- Returns
- Replacement of items damaged in transit within 7 days
- Other terms
- Sample data for testing; not a real offer.
Variants
| Variant | Specifications | Min. order · lead time | Price, ex GST |
|---|---|---|---|
| Rating20 MVABRA-F73-01 | Rating: 20 MVA | 5 nos · 16-24 weeks | for verified buyers |
| Rating31.5 MVABRA-F73-02 | Rating: 31.5 MVA | 5 nos · 16-24 weeks | for verified buyers |
| Rating50 MVABRA-F73-03 | Rating: 50 MVA | 5 nos · 16-24 weeks | for verified buyers |
| Rating100 MVABRA-F73-04 | Rating: 100 MVA | 5 nos · 30-40 weeks | for verified buyers |
| Rating160 MVABRA-F73-05 | Rating: 160 MVA | 5 nos · 30-40 weeks | for verified buyers |
Specifications
| Rating | 20 MVA to 160 MVA (see variants) |
|---|---|
| Voltage ratio | 220/132 kVmade to order: 33/11 kV / 66/11 kV / 132/33 kV |
| Cooling | ONAN/ONAFmade to order: ONAN/ONAF/OFAF |
| Vector group | YNyn0 d11 |
| Tap changer | OLTC +/- 10% in 16 stepsmade to order: OLTC 1.25% steps |
| Impedance | 12.5% |
| Insulation fluid | Mineral oilmade to order: Natural ester |
| Core | Amorphous |
| Winding material | Aluminiummade to order: Copper |
| Conservator | Plainmade to order: Air cell |
| Noise level | < 75 dB(A) |
| Terminals | Cable box |
| Monitoring | Buchholz, OTI, WTI, PRV |