Catalogue / Power transformers
Single-phase auto-transformer bank unit, Core 2 seriesSample
by Madurai 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 Core 2 range of single-phase auto-transformer bank unit by Madurai covers 4 rating options (20 MVA to 100 MVA). Highlights: oil-tight tank, vacuum withstand tested, condition monitoring sensors and on-load tap changer with AVR. Typically used for transmission utilities, grid substations and solar and wind evacuation. Designed and tested to IS 2026, IEC 60076 and CBIP Manual 317. Lead time 16-24 weeks; delivers to All India. Sample listing: illustrative data for testing BARREL Shop, not a real offer.
- Brand
- Madurai
- Model
- MAD-351 series
- Listing type
- Product
- Unit
- nos
- Minimum order
- 2 nos
- Lead time
- 16-24 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
- Corrugated box on pallet
- Delivery terms
- FOR nearest railhead
- Returns
- No returns on made-to-order items
- Other terms
- Sample data for testing; not a real offer.
Variants
| Variant | Specifications | Min. order · lead time | Price, ex GST |
|---|---|---|---|
| Rating20 MVAMAD-351-01 | Rating: 20 MVA | 2 nos · 16-24 weeks | for verified buyers |
| Rating31.5 MVAMAD-351-02 | Rating: 31.5 MVA | 2 nos · 16-24 weeks | for verified buyers |
| Rating50 MVAMAD-351-03 | Rating: 50 MVA | 2 nos · 30-40 weeks | for verified buyers |
| Rating100 MVAMAD-351-04 | Rating: 100 MVA | 2 nos · 30-40 weeks | for verified buyers |
Specifications
| Rating | 20 MVA to 100 MVA (see variants) |
|---|---|
| Voltage ratio | 33/11 kV |
| Cooling | ONAN/ONAFmade to order: ONAN/ONAF/OFAF |
| Vector group | YNyn0 d11made to order: Dyn11 / YNa0d11 |
| Tap changer | OLTC +/- 10% in 16 steps |
| Impedance | 12.5% at 100 MVAmade to order: 10% / 12.5% |
| Insulation fluid | Mineral oilmade to order: Natural ester |
| Core | CRGO M0Hmade to order: Amorphous |
| Winding material | Aluminium |
| Conservator | Air cell |
| Noise level | < 75 dB(A) |
| Terminals | Cable box |
| Monitoring | Buchholz, OTI, WTI, PRV |