Catalogue / Transformer overhaul & oil filtration
Transformer oil filtration and dehydration, Max seriesSample
by Nilgiri Infra Services (Sample) · verified by BARREL
Price for verified buyers
Ordered and invoiced through BARREL — one contract, one GST invoice.
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The Max service of transformer oil filtration and dehydration by Nilgiri covers 3 transformer rating options (5 MVA to 20 MVA). Highlights: core insulation resistance checks, nitrogen or dry air purge on opening and leak testing before energisation. Typically used for captive power plants, industrial distribution transformers and solar and wind pooling substations. Delivered in line with IS 335 (Mineral Insulating Oil), IS 1866 (Oil Maintenance) and IEC 60422. Mobilisation Mobilisation in 3-5 days; serves East & North-East India. Sample listing: illustrative data for testing BARREL Shop, not a real offer.
- Brand
- Nilgiri
- Model
- NIL-792 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
- East & North-East India
- GST rate
- 18 %
- Country of origin
- India (imported sub-assemblies)
- 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 rating5 MVANIL-792-01 | Transformer rating: 5 MVA | 1 nos · Mobilisation in 3-5 days | for verified buyers |
| Transformer rating10 MVANIL-792-02 | Transformer rating: 10 MVA | 1 nos · Mobilisation in 3-5 days | for verified buyers |
| Transformer rating20 MVANIL-792-03 | Transformer rating: 20 MVA | 1 nos · Mobilisation in 3-5 days | for verified buyers |
Specifications
| Transformer rating | 5 MVA to 20 MVA (see variants) |
|---|---|
| Service | Oil reclamation |
| Filtration machine | Vacuum dehydration 6000 L/hrmade to order: Mobile 12000 L/hr |
| Oil BDV target | Above 70 kV |
| Moisture target | Below 10 ppmmade to order: Below 5 ppm |
| Testing | DGA, furan, BDV, tan deltamade to order: Full routine tests after overhaul |
| Spares | Gaskets and silica gelmade to order: Bushings and OLTC parts at cost |
| Downtime | 5-7 daysmade to order: 2-3 days / 3-4 weeks |
| Site work | Workshop repairmade to order: Hot oil circulation at site |
| Crew | Specialised overhaul team |
| Certificate | Oil test report from NABL lab |