Catalogue / Power transformers
Power transformer 3-phase oil-immersed ONAN/ONAF, Duo seriesSample
by Ajantajyoti Transformers (Sample) · verified by BARREL
Price on quote
Ordered and invoiced through BARREL — one contract, one GST invoice.
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Ajantajyoti Duo power transformer 3-phase oil-immersed ONAN/ONAF, offered in 4 rating options from 20 MVA to 100 MVA. Key features: CRGO core with step-lap joints, condition monitoring sensors and short-circuit tested design. Used by generator step-up, solar and wind evacuation and transmission utilities. Designed and tested to IS 2026, IEC 60076 and CBIP Manual 317. Lead time 30-40 weeks; delivers to East & North-East India. Sample listing: illustrative data for testing BARREL Shop, not a real offer.
- Brand
- Ajantajyoti
- Model
- AJA-F74 series
- Listing type
- Product
- Unit
- nos
- Minimum order
- 10 nos
- Lead time
- 30-40 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
- Wooden crate, seaworthy
- 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 MVAAJA-F74-01 | Rating: 20 MVA | 10 nos · 30-40 weeks | on quote |
| Rating31.5 MVAAJA-F74-02 | Rating: 31.5 MVA | 10 nos · 30-40 weeks | on quote |
| Rating50 MVAAJA-F74-03 | Rating: 50 MVA | 10 nos · 30-40 weeks | on quote |
| Rating100 MVAAJA-F74-04 | Rating: 100 MVA | 10 nos · 30-40 weeks | on quote |
Specifications
| Rating | 20 MVA to 100 MVA (see variants) |
|---|---|
| Voltage ratio | 220/132 kVmade to order: 33/11 kV / 66/11 kV / 132/33 kV |
| Cooling | ONAN/ONAF |
| Vector group | YNyn0 d11 |
| Tap changer | OLTC +/- 10% in 16 steps |
| Impedance | 10% |
| Insulation fluid | Natural ester |
| Core | Amorphous |
| Winding material | Copper |
| Conservator | Air cellmade to order: Plain |
| Noise level | < 75 dB(A) |
| Terminals | Oil-to-air bushings |
| Monitoring | Buchholz, OTI, WTI, PRV |