Supply · Bihar
Distribution Transformers in Bihar
16 kVA – 1000 kVA. Delivery across Bihar about 5 days by road, built to the specification your utility or project issues.
Finished distribution transformers in the dispatch yard
Logistics and network
Supplying Bihar.
Deliveries across Bihar start at about 1200 km by road, which puts the nearer cities (Muzaffarpur, Patna, Gaya) within 5 days of dispatch. The state's demand centres on Patna and Hajipur industrial areas, Begusarai refinery and fertiliser, Muzaffarpur and Bhagalpur textiles.
Distribution in Bihar is handled by NBPDCL and SBPDCL; BSPTCL runs the transmission network. Programmes now in execution include RDSS, Har Ghar Bijli, and each is tendered against a technical specification that we quote and manufacture to.
Distribution transformers are the highest-volume line on the campus — around 900 jobs a month across the full IS 1180 rating ladder, from 16 kVA agricultural units to 1000 kVA industrial supply.
Standard build is Dyn11, ONAN, 11/0.433 kV or 33/0.433 kV, with off-circuit tapping. But almost nothing here is fixed: vector group, impedance, tapping range, winding material, fittings and efficiency level are all specified by the purchaser, and we build to that schedule rather than asking you to accept ours.
| Parameter | Specification |
|---|---|
| Rated capacity | 16 kVA to 1000 kVA (1 MVA) |
| Phases | Three-phase and single-phase |
| Type | Oil-immersed, outdoor — sealed corrugated-tank or conservator type; dry type (AN) for indoor duty |
| Voltage class | 11 kV, 22 kV and 33 kV systems |
| Standard voltage ratios | 11 / 0.433 kV · 22 / 0.433 kV · 33 / 0.433 kV · 11 / 0.25 kV single-phase |
| Frequency | 50 Hz standard; 60 Hz for export |
Specifying
What changes for Bihar.
- Design ambient 50 °C; seismic classification Zone V for structures and foundations.
- Inland exposure: standard epoxy-polyurethane exterior finish and hot-dip galvanized steel parts.
- Temperature rise 45 K winding and 40 K top oil over the stated ambient, or 55 K / 50 K where NBPDCL and SBPDCL specifications allow; losses, impedance and tapping to the utility schedule or IS 1180 level.
Questions
Frequently asked.
How long does delivery of Distribution Transformers to Bihar take?
Can you build to the NBPDCL and SBPDCL specification?
Do you supply private buyers and contractors across Bihar, not only utilities?
Send us your Distribution Transformers schedule for Bihar.
Ratings, quantities, the specification you are buying against and the delivery point. We return a quotation with a firm delivery programme.