Catalogue / Earthing & auxiliary transformers
Zig-zag earthing transformer, Core seriesSample
by Coorgswarna Transformers (Sample) · verified by BARREL
Price for verified buyers
Ordered and invoiced through BARREL — one contract, one GST invoice.
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Zig-zag earthing transformer from Coorgswarna, Core series: 4 rating options between 315 kVA and 1600 kVA. Highlights: limits fault current to relay-set value, short-time rated for fault duty and provides earth reference to ungrounded systems. Suited to wind farm collector systems, power plant station service and substation auxiliary supply. Designed and tested to IS 1180, IS 2026 and IEC 60076. Lead time 3-5 weeks; delivers to All India. Sample listing: illustrative data for testing BARREL Shop, not a real offer.
- Brand
- Coorgswarna
- Model
- COO-F33 series
- Listing type
- Product
- Unit
- nos
- Minimum order
- 1 nos
- Lead time
- 3-5 weeks
- Warranty
- 24 months
- Standards
- IS 1180, IS 2026, IEC 60076
- Delivers to
- All India
- GST rate
- 18 %
- Country of origin
- India
- Packaging
- Corrugated box on pallet
- 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 |
|---|---|---|---|
| Rating315 kVACOO-F33-01 | Rating: 315 kVA | 1 nos · 3-5 weeks | for verified buyers |
| Rating630 kVACOO-F33-02 | Rating: 630 kVA | 1 nos · 3-5 weeks | for verified buyers |
| Rating1000 kVACOO-F33-03 | Rating: 1000 kVA | 1 nos · 8-10 weeks | for verified buyers |
| Rating1600 kVACOO-F33-04 | Rating: 1600 kVA | 1 nos · 8-10 weeks | for verified buyers |
Specifications
| Rating | 315 kVA to 1600 kVA (see variants) |
|---|---|
| Type | Station service |
| Primary voltage | 11 kVmade to order: 33 kV / 132 kV |
| Secondary voltage | 3.3 kVmade to order: 0.433 kV |
| Short-time rating | 30 smade to order: 10 s |
| Neutral current | 400 A |
| Cooling | ONAN |
| Vector group | ZNyn11made to order: Dyn11 |
| Impedance | 5%made to order: 4% / Low zero-sequence |
| Tap changer | Off-circuit +/- 5% |
| Termination | Cable box |
| Mounting | Plinthmade to order: Skid |
| Neutral protection | CT on neutral |