Catalogue / Power transformers
Single-phase auto-transformer bank unit, Plus 4 seriesSample
by Coorgswarna Transformers (Sample) · verified by BARREL
Price for verified buyers
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Coorgswarna Plus 4 single-phase auto-transformer bank unit, offered in 5 rating options from 20 MVA to 160 MVA. Key features: on-load tap changer with AVR, oil-tight tank, vacuum withstand tested and CRGO core with step-lap joints. Typically used for industrial plants, grid substations and solar and wind evacuation. Designed and tested to IS 2026, IEC 60076 and CBIP Manual 317. Lead time 30-40 weeks; delivers to All India. Sample listing: illustrative data for testing BARREL Shop, not a real offer.
- Brand
- Coorgswarna
- Model
- COO-353 series
- Listing type
- Product
- Unit
- nos
- Minimum order
- 10 nos
- Lead time
- 30-40 weeks
- Warranty
- 24 months from commissioning
- Standards
- IS 2026, IEC 60076, CBIP Manual 317
- Delivers to
- All India
- GST rate
- 18 %
- Country of origin
- India
- Packaging
- As per item, transit-safe
- Delivery terms
- Door delivery in metro cities
- Returns
- Returns within 15 days if unused, in original packing
- Other terms
- Sample data for testing; not a real offer.
Variants
| Variant | Specifications | Min. order · lead time | Price, ex GST |
|---|---|---|---|
| Rating20 MVACOO-353-01 | Rating: 20 MVA | 10 nos · 30-40 weeks | for verified buyers |
| Rating31.5 MVACOO-353-02 | Rating: 31.5 MVA | 10 nos · 30-40 weeks | for verified buyers |
| Rating50 MVACOO-353-03 | Rating: 50 MVA | 10 nos · 30-40 weeks | for verified buyers |
| Rating100 MVACOO-353-04 | Rating: 100 MVA | 10 nos · 30-40 weeks | for verified buyers |
| Rating160 MVACOO-353-05 | Rating: 160 MVA | 10 nos · 30-40 weeks | for verified buyers |
Specifications
| Rating | 20 MVA to 160 MVA (see variants) |
|---|---|
| Voltage ratio | 33/11 kV |
| Cooling | ONAN/ONAF/OFAFmade to order: ONAN/ONAF |
| Vector group | Dyn11made to order: YNyn0 d11 / YNa0d11 |
| Tap changer | OLTC 1.25% steps |
| Impedance | 12.5%made to order: 10% / 12.5% at 100 MVA |
| Insulation fluid | Natural estermade to order: Mineral oil |
| Core | Amorphousmade to order: CRGO M0H |
| Winding material | Aluminium |
| Conservator | Air cellmade to order: Plain |
| Noise level | < 75 dB(A) |
| Terminals | Oil-to-air bushingsmade to order: Cable box |
| Monitoring | Buchholz, OTI, WTI, PRV |