High-Efficiency Power & Service Distribution Transformers
Urja Techniques (India) Pvt. Ltd. is an established manufacturer and global exporter of high-reliability distribution transformers engineered for regional utilities, industrial estates, renewable energy substations, and critical commercial complexes.
Our distribution transformer range covers ratings from 100 kVA, 250 kVA, 500 kVA, and custom high-capacity configurations up to 33 kV. Built using precision prime-grade CRGO (Cold Rolled Grain Oriented) silicon steel cores, our units are engineered for minimal no-load losses, high operational efficiency, and prolonged insulation lifespan under continuous extreme operating conditions.
Every transformer undergoes rigorous routine and type testing at recognized independent laboratories, including CPRI and ERDA, verifying short-circuit withstand integrity and impulse surge compliance for utility tenders worldwide.
Engineered For Global Utility & Industrial Grids
Custom-built solutions meeting standard tender specifications across the Middle East, Africa, Southeast Asia, and India.
Pole & Pad Mounted
Compact footprints engineered for overhead pole installations or ground-level tamper-proof pad mounted substations for urban underground networks.
Copper & Aluminum Windings
Electrolytic high-purity copper windings for maximum thermal efficiency and compact dimensions, or high-grade EC aluminum for economical municipal electrification.
Low Loss CRGO Core
Step-lap core construction using high-permeability, low-loss grain-oriented silicon steel ensuring low magnetizing current and whisper-quiet operation.
Advanced Cooling (ONAN / ONAF)
Optimized corrugated fins and pressed radiator panels designed to facilitate exceptional oil circulation and thermal dissipation in ambient temperatures up to 50°C.
Standard Compliance
Strictly compliant with IS 1180 (Part 1): 2014 Level 2, IS 2026, IEC 60076, and ANSI standards, ensuring rapid approvals with international project consultants.
Verified Export Track Record
Robust field operation in major global utilities and turnkey industrial projects across Kenya, Nigeria, Saudi Arabia, UAE, Tanzania, and Indonesia.
Comprehensive Engineering Parameters
Standard and customizable design criteria for project bidding, utility evaluation, and procurement.
| Parameter | Standard Industrial Specification | Custom Engineered Options |
|---|---|---|
| Standard Power Ratings | 100 kVA, 160 kVA, 250 kVA, 315 kVA, 500 kVA, 630 kVA, 1000 kVA, 1600 kVA, 2500 kVA | Specialized ratings engineered per EPC single-line diagrams |
| Voltage Class (Primary / Secondary) | 11 kV, 22 kV, 33 kV / 433 V, 415 V, 400 V, 240 V | Dual primary voltages, intermediate ratios upon request |
| Frequency & Phase | 50 Hz / 60 Hz — Three-Phase / Single-Phase | Custom operational frequency requirements |
| Vector Group | Dyn11 (Standard distribution), Dyn5, Ynd11 | Configurable per grid grounding architecture |
| Cooling Method | ONAN (Oil Natural Air Natural) | ONAF (Forced Air) or KNAN (Synthetic Ester Fluids) |
| Tapping Arrangement | Off-Circuit Tap Changer (+/- 2.5% to +/- 5% in steps of 2.5%) | On-Load Tap Changer (OLTC) with RTCC and AVR panel |
| Core & Conductor Material | Prime CRGO Silicon Steel • Electrolytic Grade Copper / Aluminum | Ultra-low-loss amorphous core alternatives |
| Applicable Standards | IS 1180 (Part 1) Level 2, IS 2026, IEC 60076, BS 171, ANSI C57 | Utility-specific country norms and DISCOM criteria |
| Standard Accessories | Oil Level Indicator, Pressure Relief Device (PRD), Breather, Drain Valve, Bi-directional Rollers | Buchholz Relay, Magnetic Oil Gauge, Winding & Oil Temperature Indicators (OTI/WTI) |
Quality Assurance & Certified Testing Protocols
Every transformer unit fabricated at our MIDC Rabale works undergoes 100% in-house routine testing according to IEC 60076 & IS 2026 protocols prior to dispatch. We verify insulation resistance, winding resistance, voltage ratio, phase displacement, no-load loss, load loss, impedance, and separate-source dielectric withstand. In-house impulse voltage generators ensure lightning surge withstand integrity for grid deployment.
Distribution Transformer Typology
Explore specialized engineering classes manufactured to address distinctive regional and environmental installations.
- Pole-Mounted Transformers Engineered with compact lift lugs and surge brackets for rural and overhead grid electrification.
- Pad-Mounted Substation Units Tamper-resistant, locked enclosure transformers suited for commercial plazas and residential layouts.
- Hermetically Sealed Distribution Zero-breather units preventing atmospheric moisture penetration, ideal for humid, coastal, or remote sites.
- Dry-Type Cast Resin / VPI Oil-free, flame-retardant distribution alternatives engineered for healthcare facilities, towers, and underground transit.
Request Technical Specifications & Commercial Quotation
Submit your single-line diagram, kVA capacity, primary/secondary voltage ratios, and project schedule. Our design engineers will prepare a comprehensive engineering proposal with guaranteed loss parameters and delivery timelines.
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