800kVA Miniature Substation

800 kVA Miniature Substation – High-Capacity Power Distribution in a Compact Footprint

The 800 kVA mini substation is a fully enclosed, factory-assembled unit that provides seamless voltage transformation from 11,000V to 415V. Designed to meet the needs of high-demand environments such as industrial plants, shopping centres, hospitals, and large-scale residential developments, this substation offers efficient, reliable, and space-saving power distribution.

Built with a durable enclosure and premium components, the 800 kVA substation includes a high-performance oil-cooled transformer, medium-voltage switchgear (RMU), and low-voltage distribution panel—all within a compact footprint suitable for limited-space or high-density locations.

🔍 Key Features:

• Transformer Rating: 800 kVA, 11000V/415V, 50Hz, Dyn11 vector group

• Cooling System: ONAN (Oil Natural Air Natural)

• Construction: Welded cover with aluminum windings, corrosion-resistant finish

• HT Switchgear: ABB, Schneider, or Actom RMUs – available in oil, SF6, air, or vacuum types

• LV Panel Includes:

  • 1000A MCCB

  • Earth and neutral busbars

  • Ammeters with CTs

  • Voltmeter with selector switch

  • Optional: MD kWh meter and cable feeder MCCBs

• Enclosure Finish: Avocado Green or other SANS-approved colors

• Protection: Rating plate, oil gauge, thermometer pocket, optional EFI+CT

✅ Benefits:

• Compact High Power: Ideal for heavy-duty electrical loads in areas with limited installation space

• All-in-One Design: Integrates transformer, switchgear, and control components in one enclosure

• Quick Setup: Delivered preassembled and tested to reduce on-site construction time

• Durability: Engineered for inland and industrial environments with minimal maintenance

• Custom Options Available: Tailor configuration to project-specific voltage, protection, and layout requirements

Whether for new infrastructure or upgrades to existing systems, the Retrolex 800 kVA miniature substation offers dependable power distribution with high efficiency and a small footprint.