Catalogue / Transformer overhaul & oil filtration
Bushing and OLTC replacement, Duo seriesSample
by Prakashsys Infra Services (Sample) · verified by BARREL
Price on quote
Ordered and invoiced through BARREL — one contract, one GST invoice.
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The Duo service of bushing and OLTC replacement by Prakashsys covers 3 transformer rating options (20 MVA to 100 MVA). Design: post-work tan delta and ratio tests, leak testing before energisation and nitrogen or dry air purge on opening. Suited to solar and wind pooling substations, industrial distribution transformers and state utility asset life extension. Delivered in line with IS 335 (Mineral Insulating Oil), IS 1866 (Oil Maintenance) and IEC 60422. Mobilisation Mobilisation in 3-5 days; serves All India and export (SAARC, Middle East, Africa). Sample listing: illustrative data for testing BARREL Shop, not a real offer.
- Brand
- Prakashsys
- Model
- PRA-611 series
- Listing type
- Service
- Unit
- nos
- Minimum order
- 1 nos
- Lead time
- Mobilisation in 3-5 days
- Warranty
- Oil quality guarantee 6 months
- Standards
- IS 335 (Mineral Insulating Oil), IS 1866 (Oil Maintenance), IEC 60422
- Delivers to
- All India and export (SAARC, Middle East, Africa)
- GST rate
- 18 %
- Country of origin
- India
- Delivery terms
- Site mobilisation as per work order
- Returns
- Re-work of defective scope at no cost
- Other terms
- Sample data for testing; not a real offer.
Variants
| Variant | Specifications | Min. order · lead time | Price, ex GST |
|---|---|---|---|
| Transformer rating20 MVAPRA-611-01 | Transformer rating: 20 MVA | 1 nos · Mobilisation in 3-5 days | on quote |
| Transformer rating50 MVAPRA-611-02 | Transformer rating: 50 MVA | 1 nos · Mobilisation in 3-5 days | on quote |
| Transformer rating100 MVAPRA-611-03 | Transformer rating: 100 MVA | 1 nos · Mobilisation in 3-5 days | on quote |
Specifications
| Transformer rating | 20 MVA to 100 MVA (see variants) |
|---|---|
| Service | Full overhaul with rewinding |
| Filtration machine | Vacuum dehydration 6000 L/hrmade to order: Mobile 12000 L/hr |
| Oil BDV target | Above 70 kVmade to order: Above 60 kV |
| Moisture target | Below 5 ppm |
| Testing | Full routine tests after overhaul |
| Spares | Bushings and OLTC parts at cost |
| Downtime | 5-7 days |
| Site work | Hot oil circulation at site |
| Crew | Specialised overhaul team |
| Certificate | Overhaul report with test datamade to order: Oil test report from NABL lab |