Catalogue / Power transformers
Grid substation transformer with OLTC, Eco 6 seriesSample
by Coromandel Transformer Works (Sample) · verified by BARREL
Price for verified buyers
Ordered and invoiced through BARREL — one contract, one GST invoice.
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The Eco 6 range of grid substation transformer with OLTC by Coromandel covers 5 rating options (20 MVA to 160 MVA). Key features: oil-tight tank, vacuum withstand tested, CRGO core with step-lap joints and condition monitoring sensors. Used by transmission utilities, industrial plants and solar and wind evacuation. Designed and tested to IS 2026, IEC 60076 and CBIP Manual 317. Lead time 30-40 weeks; delivers to West India. Sample listing: illustrative data for testing BARREL Shop, not a real offer.
- Brand
- Coromandel
- Model
- COR-274 series
- Listing type
- Product
- Unit
- nos
- Minimum order
- 1 nos
- Lead time
- 30-40 weeks
- Warranty
- 36 months from supply
- Standards
- IS 2026, IEC 60076, CBIP Manual 317
- Delivers to
- West India
- GST rate
- 18 %
- Country of origin
- India
- Packaging
- As per item, transit-safe
- Delivery terms
- FOR nearest railhead
- 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 MVACOR-274-01 | Rating: 20 MVA | 1 nos · 30-40 weeks | for verified buyers |
| Rating31.5 MVACOR-274-02 | Rating: 31.5 MVA | 1 nos · 30-40 weeks | for verified buyers |
| Rating50 MVACOR-274-03 | Rating: 50 MVA | 1 nos · 30-40 weeks | for verified buyers |
| Rating100 MVACOR-274-04 | Rating: 100 MVA | 1 nos · 30-40 weeks | for verified buyers |
| Rating160 MVACOR-274-05 | Rating: 160 MVA | 1 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 | Dyn11made to order: YNyn0 d11 / YNa0d11 |
| Tap changer | OLTC 1.25% steps |
| Impedance | 12.5% at 100 MVAmade to order: 10% / 12.5% |
| Insulation fluid | Mineral oil |
| Core | Amorphousmade to order: CRGO M0H |
| Winding material | Coppermade to order: Aluminium |
| Conservator | Plainmade to order: Air cell |
| Noise level | < 75 dB(A) |
| Terminals | Oil-to-air bushings |
| Monitoring | Buchholz, OTI, WTI, PRV |