The Skopje Multi-Purpose Development Project is an urban development in Skopje, the capital of North Macedonia, bringing several uses together. Devpan supplied the main distribution, area and floor boards, power factor correction and lighting panels.
Electrical Profile of the Project
- LocationSkopje, North Macedonia
- Building typeMixed use
- Installed power≈ 6,400 kVA
- Transformer configuration4 × 1,600 kVA
- Main busbar rated current2 × 3,200 A
- Short-time withstand current (Icw)65 kA / 1 s
- Devpan scopeLow voltage switchboards, engineering and site coordination
- Verification standardIEC 61439-1, IEC 61439-2
About the Project
In a mixed-use development, retail, offices, housing and public spaces share one electrical infrastructure, yet each has its own operating hours, load character and tolerance to interruption. Skopje’s continental climate produces two separate peak seasons: heating in winter and cooling in summer. The region is also seismically active, so switchboard enclosures and busbar systems must be installed with earthquake loads in mind. Tenant metering and a clear split of operational responsibilities are further key design inputs.
For a project of this scale, the typical architecture uses four 1,600 kVA transformers fed at 10 kV and two independent 3,200 A main busbar sections. Each use is grouped on its own outgoing section, and a coupler breaker allows load transfer during maintenance or a transformer fault. Generators of approximately 2 × 1,250 kVA pick up life-safety and priority shared loads. Form 4a – 4b segregation lets different operators work independently, while DevComp panels balance reactive power.
Devpan Scope and Switchboard Architecture
Devpan’s scope runs from the substations to the distribution boards of each use and the external public-realm lighting.
- Main distribution boards (DevPanel): typically 2 × 3,200 A, 65 kA / 1 s, Form 4a – Form 4b, with coupler and generator changeover.
- Area and floor boards (DevBox): separately metered sub-distribution for retail, office and residential areas.
- Power factor correction (DevComp): automatic stepped compensation adapted to seasonal heating and cooling loads.
- Lighting and power panels (DevPower): time and scene control for plaza, walkway, façade and car park lighting.
- Life-safety supplies: fire, smoke extraction and emergency lighting circuits backed by approximately 2 × 1,250 kVA of generation.
Technical Configuration
| Installed power | ≈ 6,400 kVA |
|---|---|
| Transformer configuration | 4 × 1,600 kVA |
| Medium voltage level | 10 kV |
| Low voltage / frequency | 400 / 230 V, 50 Hz |
| Main busbar rated current | 2 × 3,200 A |
| Short-time withstand current (Icw) | 65 kA / 1 s |
| Form of internal separation | Form 4a – Form 4b |
| Degree of protection (IP) | IP31 – IP41 |
| Generator back-up | 2 × 1,250 kVA |
| Verification standard | IEC 61439-1, IEC 61439-2 |
Devpan Products Used in This Project
Project-Specific Engineering Topics
Separation by use
Retail, office and residential loads are grouped on separate busbar sections or feeder groups, simplifying metering and fault management.
Seasonal peaks
Winter heating and summer cooling peaks are analysed separately, and transformer capacity is checked against both scenarios.
Seismic installation
Enclosures are anchored to floor and wall, and busbar and cable connections use flexible elements to absorb earthquake movement.
Public-realm lighting
Plaza and pedestrian lighting runs on astronomical clocks and scenes to save energy.
Frequently Asked Questions
What is the installed power of the Skopje Multi-Purpose Development?
For a mixed-use development of this scale the installed power is approximately 6,400 kVA, with a typical transformer configuration of 4 × 1,600 kVA. The main busbars are typically planned at 2 × 3,200 A and 65 kA / 1 s, with 10 kV medium voltage and around 2 × 1,250 kVA of standby generation.
Why is Form 4 segregation preferred in mixed-use schemes?
Each user’s outgoing units sit in separate compartments, so maintenance or alterations for one tenant do not interrupt supply to the others.
What matters for switchboards in seismic regions?
Proper anchoring of enclosures, secure fixing of internal equipment and flexibility in busbar or cable links that cross building expansion joints.
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SKP Daho ProjectMixed use · UzbekistanDo you have a project of a similar scale?
Send us your single-line diagram, your transformer rating or simply your load list. Our engineering team runs the short-circuit and discrimination study and defines the form of separation and busbar cross-section with you.
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