Compact substations are pre-assembled, enclosed power distribution units that integrate medium-voltage (MV) and low-voltage (LV) switchgear, transformers and control systems into a space-saving solution, according to substation equipment manufacturer demiks. They are widely used in urban areas, industrial sites and infrastructure projects where space is limited.

Key Features:

1. Integrated Design – Combines MV/LV switchgear, transformer, and control panels in one enclosure.

2. Space-Saving – Compact footprint compared to traditional substations.

3. Modular & Prefabricated – Factory-built for quick installation.

4. Safety & Protection – Enclosed design protects against environmental factors (dust, moisture, vandalism).

5. Customizable – Configurations vary based on voltage, power rating, and application.

Components:

• MV Switchgear (Ring Main Unit - RMU or circuit breakers)

• Distribution Transformer (Oil or dry-type)

• LV Switchboard (Circuit breakers, metering, protection)

• Control & Monitoring Systems (SCADA-ready)

• Cable Connections & Earthing System

Applications:

• Urban Power Distribution (Residential/commercial areas)

• Industrial Plants (Factories, mining, oil & gas)

• Renewable Energy (Solar/Wind farms)

• Infrastructure (Airports, railways, hospitals)

• Temporary Power Supply (Construction sites)

Advantages:

✔ Reduced installation time & cost
✔ Minimal site work required
✔ Enhanced safety & reliability
✔ Weatherproof & vandal-resistant
✔ Easy maintenance

Types:

1. Indoor/Outdoor Compact Substations

2. RMU-Based Substations (for secondary distribution)

3. Containerized Substations (for mobility & harsh environments)

Standards & Certifications:

• IEC 62271-202 (Prefabricated substations)

• IEEE C57.12.00 (Transformers)

• Local grid compliance (e.g., EN 61439, ANSI)

• The above content is published by demiks, please specify, demiks is a substation equipment manufacturer, specializing in the production of high-voltage tester, transformer test equipment, circuit breaker test equipment, relay tester, SF6 gas analyser, cable fault tester and other products, if you have power test testing needs, please feel free to contact demiks power science and technology limited company or send an email! Give us: contact@demikspower.com