Catalogue / Inverter duty transformers
Three-winding 33 kV solar transformer, Ultra seriesSample
by Bundel Transformers (Sample) · verified by BARREL
Price for verified buyers
Ordered and invoiced through BARREL — one contract, one GST invoice.
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Bundel Ultra three-winding 33 kV solar transformer, offered in 5 rating options from 3.15 MVA to 10 MVA. Key features: withstands inverter harmonic currents, electrostatic shield between windings and low-loss CRGO core. Typically used for utility solar plants, hybrid solar and storage and agri solar feeders. Designed and tested to IS 2026, IS 1180 and IEC 60076-16. Lead time 10-14 weeks; delivers to All India and export (SAARC, Middle East, Africa). Sample listing: illustrative data for testing BARREL Shop, not a real offer.
- Brand
- Bundel
- Model
- BUN-7B8 series
- Listing type
- Product
- Unit
- nos
- Minimum order
- 5 nos
- Lead time
- 10-14 weeks
- Warranty
- 36 months from supply
- Standards
- IS 2026, IS 1180, IEC 60076-16
- Delivers to
- All India and export (SAARC, Middle East, Africa)
- GST rate
- 18 %
- Country of origin
- India
- Packaging
- Wooden crate, seaworthy
- Delivery terms
- Door delivery in metro cities
- 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 |
|---|---|---|---|
| Rating3.15 MVABUN-7B8-01 | Rating: 3.15 MVA | 5 nos · 10-14 weeks | for verified buyers |
| Rating4 MVABUN-7B8-02 | Rating: 4 MVA | 5 nos · 10-14 weeks | for verified buyers |
| Rating5 MVABUN-7B8-03 | Rating: 5 MVA | 5 nos · 10-14 weeks | for verified buyers |
| Rating6.3 MVABUN-7B8-04 | Rating: 6.3 MVA | 5 nos · 10-14 weeks | for verified buyers |
| Rating10 MVABUN-7B8-05 | Rating: 10 MVA | 5 nos · 10-14 weeks | for verified buyers |
Specifications
| Rating | 3.15 MVA to 10 MVA (see variants) |
|---|---|
| Voltage ratio | 22/0.69 kVmade to order: 33/0.69 kV / 33/0.8 kV / 33/0.69/0.69 kV |
| Windings | Twomade to order: Three (split LV) |
| Vector group | Dyn11made to order: Dy11y11 |
| Cooling | ONAN |
| Impedance | 8% |
| Tap changer | OLTC |
| Insulation fluid | Mineral oilmade to order: Natural ester |
| Harmonic duty | K-factor 4 / 6th harmonic |
| Electrostatic shield | Provided between HV and LV |
| HV termination | Air bushing |
| Protection | Buchholz, OTI, WTI, PRD |
| Losses | Level 2 / Level 1 |