High-Performance Electrical Power Substations for Global Utilities & Industry
Urja Techniques (India) Pvt. Ltd. is a globally recognized manufacturer and exporter of state-of-the-art Electrical Power Substations, Unitised Substations, and Compact Package Substations based in Mumbai, India. Established in 1991, our engineering team brings over three decades of expertise in designing and manufacturing robust electrical distribution solutions certified to ISO 9001:2015, ISO 14001:2015, and ISO 45001 quality management standards.
Our substations are custom-engineered to comply strictly with international standard frameworks including IEC 60076, IS 2026, IS 1180, and IS 14786. Every unit undergoes rigorous Quality Assurance routines and holds type-test certifications from accredited independent test laboratories such as CPRI (Central Power Research Institute) and ERDA (Electrical Research and Development Association) for short-circuit withstand performance, thermal endurance, dielectric strength, and environmental protection ratings.
Substation Product Range & Engineering Options
1. High-Voltage Electrical Power Substations (Up to 132 kV Class)
Designed for utility-scale electrical generation, high-voltage transmission, and primary industrial step-down step-up applications. Engineered with high-grade CRGO magnetic steel cores and 99.99% pure electrolytic copper windings for maximum efficiency (99.9%) and minimal dielectric loss.
- Voltage Class: Up to 132 kV / Rated capacity up to 25 MVA or customized.
- Cooling Systems: ONAN (Oil Natural Air Natural) / ONAF (Oil Natural Air Forced).
- Advanced protection relay coordination, OLTC / Off-Load tap changers.
- High mechanical short-circuit withstand capability.
2. Electrical Unitised & Compact Package Substations
Self-contained, factory-assembled outdoor substations comprising High-Voltage Switchgear (RMU/VCB), step-down distribution transformer, and Low-Voltage switchboard housed inside a weatherproof IP54/IP55 metal enclosure.
- Capacity: 100 kVA up to 2500 kVA (11 kV & 33 kV primary voltage ratings).
- Double-wound isolation copper/aluminium windings according to client specs.
- Plug-and-play factory pre-commissioning minimizing civil installation footprint and onsite cost.
- Weatherproof, anti-corrosive powder-coated sheet steel or GRP enclosure options.
Technical Specifications & Operational Parameters
The table below outlines standard technical parameters for international procurement and engineering specification reviews:
| Technical Parameter | Specification Range |
|---|---|
| Rated Power Capacity | 100 kVA up to 2500 kVA (Compact) / Up to 25 MVA (Power Substation) |
| Primary Input Voltage | 11 kV, 22 kV, 33 kV, 66 kV, up to 132 kV (50 Hz / 60 Hz) |
| Secondary Output Voltage | 415 V, 690 V, 3.3 kV, 6.6 kV, 11 kV (Custom step-up/step-down) |
| Winding Conductor Material | Electrolytic Grade Copper / High-Conductivity EC Aluminium |
| Cooling Configuration | ONAN, ONAF, Air Natural (AN for Dry Type Units) |
| Operating Efficiency | Up to 99.9% (Low Load & No-Load Losses per IEC 60076) |
| Applicable Standards | IEC 60076, IS 2026, IS 1180, IS 14786, IEEE standards |
| Third-Party Type Tests | CPRI & ERDA Certified (Short Circuit, Impulse Withstand, Temp Rise) |
| Enclosure Protection Class | IP54 / IP55 Weatherproof, Dust-proof & UV Resistant Enclosures |
| Ambient Working Temp | -20°C to +55°C (Built for extreme tropical & arid desert conditions) |
Core Engineering Advantages for Overseas Procurement
- Extreme Climate & Pollution Withstand: Treated with multi-layer epoxy powder coating and polyurethane topcoats ensuring corrosion resistance in high-salinity coastal, desert, and polluted industrial environments (C4/C5 marine grade coatings).
- Superior Electrical Safety & Reliability: Integrated arc-flash mitigation, lockable interlocks, temperature monitoring sensors, over-current/earth-fault relays, and automatic circuit breakers.
- Eco-Friendly & Low Maintenance: Optimized CRGO steel lamination design minimizes operational noise levels, thermal radiation, and lifecycle maintenance downtime.
- Global Technical Export Compliance: Fully documented with complete FAT (Factory Acceptance Test) reports, GA drawings, schematic diagrams, and operational manuals required by international EPC contractors and utility boards.
Global Application Sectors
Urja Techniques substations power essential infrastructure across more than 40 countries:
- Solar PV Plants & Renewable Wind Farm Integration
- Mining Operations, Steel Processing & Metallurgy Facilities
- Oil & Gas Refineries, Petrochemical & Chemical Complexes
- Metros, Railways, Airports & Public Infrastructure Projects
- Commercial Real Estate, High-Rise Buildings & Data Centers
- State Electricity Grids & Power Utility Distribution Networks