Sahara Transformers designs and manufactures robust, self-contained Compact Substations (CSS) rated up to 1000 kVA and 33kV class. Engineered for high-density urban environments, industrial facilities, and remote renewable energy projects, our packaged substations integrate medium voltage switchgear, distribution transformer, and low voltage distribution panel within a single weatherproof enclosure.
Saves up to 70% floor space compared to conventional civil substations.
100% factory pre-wired, assembled, and tested prior to site dispatch.
Internal arc tested enclosure with independent lockable compartments.
Galvanized steel / GI enclosure coated with polyurethane weather-proof paint.
Each Compact Substation (CSS) is constructed with metal-segregated compartments to ensure operational reliability and maximum safety during routine inspections.
Houses gas-insulated SF6 Ring Main Units (RMU) or Vacuum Circuit Breakers (VCB) rated up to 33kV. Equipped with earth switches, fault passage indicators, and high-rupturing capacity (HRC) fuses for instant protection.
Fitted with oil-immersed or dry-type cast resin (CRT) distribution transformers (up to 1000 kVA). Designed with natural convection cooling vents, oil temperature indicators, and pressure relief valves.
Contains Air Circuit Breakers (ACB), MCCBs, multifunction energy meters, surge protection devices (SPD), and optional automatic power factor correction (APFC) panels tailored to site loads.
Standard electrical parameters for Sahara Transformers' range of Compact Substation units.
| Specification Parameter | Standard Range / Technical Configuration |
|---|---|
| Rated Output Capacity | 100 kVA, 250 kVA, 400 kVA, 500 kVA, 630 kVA, 800 kVA, 1000 kVA (Custom sizes up to 2500 kVA) |
| Primary System Voltage | 11 kV, 22 kV, 33 kV (3-Phase, 50 Hz / 60 Hz) |
| Secondary Voltage Class | 415 V, 433 V, 690 V (Custom industrial voltage available) |
| Insulation & Dielectric Medium | Mineral Oil-immersed (ONAN) / Dry Type Cast Resin (AN) |
| Enclosure Construction Material | Pre-galvanized Sheet Steel / Electro-galvanized GI / Aluminum Alloy / Stainless Steel |
| Enclosure Protection Degree | Transformer Room: IP23/IP34 | HV & LV Compartments: IP54 / IP55 |
| Ambient Operating Range | -25°C to +50°C (Designed for extreme tropical and high-humidity climates) |
| Safety & Compliance Standards | IEC 62271-202, IS 14728, IS 1180, ANSI C37.74, BS EN 62271 |
Sahara CSS units are optimized for rapid commissioning across critical power infrastructure projects worldwide.
Public parks, residential townships, metro transit stations, airports, and urban commercial developments.
Heavy manufacturing facilities, automotive assembly lines, textile units, and chemical processing plants.
Solar PV park pooling stations, wind turbine power collection, and battery energy storage system (BESS) grid ties.
Temporary site power, fast-track commercial buildings, data centers, and mining utility substations.
Looking for a tailored Compact Substation solution? Contact our engineering team for customized GA drawings, technical datasheets, and competitive export quotations.
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