📘 Introduction to 1000 kVA Compact Substation Size
A 1000 kVA compact substation is a prefabricated, fully integrated solution that combines high-voltage switchgear, transformer, and low-voltage switchgear into one enclosure. One of the most critical aspects of planning for such a substation is understanding its physical size, footprint, layout, and space requirements.
In this guide, we provide a detailed overview of the dimensions of a 1000 kVA compact substation, layout variations, installation clearance standards, and planning considerations. All data is aligned with international best practices and PINEELE’s engineering expertise.
Standard Dimensions of 1000 kVA Compact Substation
A typical 1000 kVA compact substation has the following overall dimensions:
| Section | Length (mm) | Width (mm) | Height (mm) |
|---|---|---|---|
| HV Compartment | 1200–1600 | 1200 | 2200–2500 |
| Transformer Comp. | 2200–2800 | 1500–1800 | 2000–2300 |
| LV Compartment | 1200–1600 | 1200–1400 | 2000–2300 |
| Total Size | 4500–6000 | 1800–2200 | 2200–2500 |
Note: Actual sizes vary based on transformer cooling type (oil/dry), protection devices, access doors, and enclosure design.
Enclosure Options and Impact on Size
The outer enclosure or housing of the compact substation plays a key role in determining the total size:
1. Metal Sheet Enclosure (Mild Steel/GI Painted)
- Compact and cost-effective
- Suitable for moderate environments
- Approximate size: 4.5m x 2.0m x 2.3m
2. Stainless Steel or Galvanized Housing
- Designed for harsh or coastal environments
- Anti-corrosion
- Slightly thicker walls increase footprint
3. Concrete Housing (Prefabricated Kiosk)
- Best for vandal-prone or fire-sensitive areas
- Bulkier and heavier
- Approximate size: 6.0m x 2.2m x 2.5m
📏 Transformer Size Within the Substation
The 1000 kVA transformer is the heaviest and largest internal component. Its size impacts the transformer compartment:
| Transformer Type | Length x Width x Height (mm) | Weight (Approx.) |
| Oil-Immersed | 2200 x 1500 x 1800 | 2000–2500 kg |
| Dry-Type Cast Resin | 1800 x 1300 x 1700 | 1800–2200 kg |
🗺️ Layout Configurations
There are three common layout configurations for a 1000 kVA compact substation:
🔹 Inline Layout
HV → Transformer → LV in a straight line (popular, narrow footprint)
🔹 L-Shape Layout
Transformer in the corner, HV and LV on perpendicular sides (space optimization)
🔹 U-Shape Layout
HV and LV panels on each end, transformer in center (ideal for 3-door access)
📦 Foundation and Installation Space Requirements
While the compact substation is pre-fabricated, it still requires:
- A flat concrete plinth 200–300 mm above ground
- Clearance of 1.2–1.5 meters around doors for maintenance
- Cable trenches beneath or beside the unit
- Space for ventilation and oil containment (for oil-immersed units)
Typical site area needed: 8 to 12 square meters (minimum)
🔐 Clearance Standards & Safety Zones
To comply with IEC/IEEE/GB safety regulations:
| Area | Minimum Clearance |
| Front of Access Doors | 1500 mm |
| Rear and Side Panels | 1000 mm |
| HV Incoming Cable Termination | 1200 mm |
| Air Flow / Ventilation Zone | 1000 mm |
Design Tips from PINEELE
- Use modular design to save space in urban zones
- Opt for dry-type transformers for indoor or fire-sensitive areas
- Select side-entry cable routing to reduce trench requirements
- Confirm transport size restrictions for delivery access
- Allow for future expansion space if growth is expected
Application Areas Where Size Matters
- City centers and urban infrastructure
- Underground or rooftop substations
- Renewable energy systems (solar/wind)
- Industrial parks with space limitations
- Temporary or mobile power setups
Why PINEELE?
PINEELE specializes in:
- Standard and custom compact substation designs
- Precise layout drawings (DWG/PDF)
- Turnkey delivery, installation, and testing
- Full IEC, ANSI, and GB compliance
- Remote monitoring integration and SCADA-ready units
📧 Contact: [email protected]
📞 Phone: +86-18968823915
💬 Chat with us on WhatsApp
❓ Frequently Asked Questions (FAQs)
Q1: Can a 1000 kVA compact substation fit in a 5×3 meter area?
A: Yes, standard metal enclosures with inline layout can be installed in such space, with minor clearance adjustments.
Q2: Is it possible to install this substation indoors?
A: Yes, especially with dry-type transformers and adequate ventilation. PINEELE offers indoor-rated enclosures.
Q3: What is the weight of a fully assembled 1000 kVA substation?
A: Approximately 4.5 to 6 tons, depending on transformer type and materials used.
✅ Conclusion
Understanding the physical size and layout of a 1000 kVA compact substation is essential for site planning, installation, and long-term maintenance. PINEELE provides highly optimized, space-efficient, and standards-compliant solutions to meet a wide range of application needs.
“Engineered to Fit — Built to Power: PINEELE Compact Substations.”
