The GE Office Project is a modern office building with workspaces, meeting facilities and technical infrastructure. Devpan supplied the main distribution, sub-distribution, power factor correction and lighting boards.
Electrical Profile of the Project
- Location
- Building typeOffice building
- Installed power≈ 3,200 kVA
- Transformer configuration2 × 1,600 kVA
- Main busbar rated current2 × 2,500 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 modern office buildings the electrical load is no longer just lighting and sockets: dense IT use, server rooms, VRF and central HVAC systems, lifts and building automation push total demand considerably higher. Large numbers of electronic loads bring harmonic distortion and a risk of poor power factor. Occupiers also expect business continuity, so even short interruptions are felt as lost working time.
For an office building of this scale, a typical arrangement is a 2 × 2,500 A main distribution board with bus coupler, fed by two 1,600 kVA transformers. The MV connection is planned in the 10 – 34.5 kV range depending on the local network. Floor boards are provided by DevBox and lighting and small power by DevPower; a 1,000 kVA generator protects server rooms, lifts and life-safety loads, and detuned DevComp panels improve power quality.
Devpan Scope and Switchboard Architecture
Devpan’s scope covers low-voltage distribution from the transformer outgoing ways down to floor and tenant boards.
- Main distribution boards (DevPanel): 2 × 2,500 A, 65 kA / 1 s, Form 3b – Form 4a, with bus coupler and generator changeover.
- Sub-distribution boards (DevBox): floor boards for office levels, server rooms and plant spaces.
- Power factor correction (DevComp): detuned compensation suited to a high share of electronic loads.
- Lighting and power panels (DevPower): workspace, common-area and emergency lighting circuits.
Technical Configuration
| Installed power | ≈ 3,200 kVA |
|---|---|
| Transformer configuration | 2 × 1,600 kVA |
| Medium voltage level | 10 – 34.5 kV |
| Low voltage / frequency | 400 / 230 V, 50 Hz |
| Main busbar rated current | 2 × 2,500 A |
| Short-time withstand current (Icw) | 65 kA / 1 s |
| Form of internal separation | Form 3b – Form 4a |
| Degree of protection (IP) | IP31 – IP41 |
| Generator back-up | 1 × 1,000 kVA |
| Verification standard | IEC 61439-1, IEC 61439-2 |
Devpan Products Used in This Project
Project-Specific Engineering Topics
Harmonics and power quality
IT equipment, LED drivers and UPS units generate harmonics; detuned compensation helps prevent neutral overloading.
Floor-level flexibility
Spare ways are left in floor boards so that office layout changes need less rewiring.
Building automation integration
Main breakers and meters are connected to the building management system to track energy use.
Flexible MV connection
Transformer and protection selection can be adapted to network voltages between 10 kV and 34.5 kV.
Frequently Asked Questions
What is the installed power for the GE Office Project?
For an office building of this scale the installed power is approximately 3,200 kVA, with a typical transformer configuration of 2 × 1,600 kVA. The main busbar is planned at 2 × 2,500 A with 65 kA / 1 s withstand, the MV supply lies in the 10 – 34.5 kV range, and standby power comes from a 1 × 1,000 kVA generator.
Why do harmonics matter in office buildings?
Electronic loads produce third-harmonic currents that can overload the neutral conductor. Detuned compensation and a correctly sized neutral reduce this risk.
Which loads does the generator supply?
Server rooms, lifts, security and fire systems and emergency lighting come first. Where capacity allows, selected office floors can be reconnected in stages.
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St. Vladimir Children’s Clinical HospitalHospital · Moscow, RussiaDo 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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