The Haliç University campus houses teaching and lecture hall blocks together with laboratories and administrative units. On this project Devpan manufactured the campus main distribution boards, the block sub-distribution boards and the laboratory supply branches.
Electrical Profile of the Project
- LocationIstanbul, Türkiye
- Building typeUniversity campus
- Installed power≈ 4,800 kVA
- Transformer configuration3 × 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
On university campuses the problem the electrical infrastructure has to solve is that loads of very different character sit on the same backbone. Lecture halls are used intensively but for short periods; laboratories house continuous and sensitive equipment; administrative units work to office hours.
At Haliç University that difference is answered with block-based distribution. Each block is fed from its own sub-distribution board and metered independently. Laboratory blocks carry a separate protection stage to safeguard the experimental rigs and, where required, a generator-backed supply. Because lighting in the lecture theatres and conference halls is controlled to stage scenarios, the harmonic profile of those branches is addressed separately.
Devpan Scope and Switchboard Architecture
The Devpan scope reaches from campus main distribution to the block and floor panels.
- Main distribution boards (DevPanel): 2,500 A class, 65 kA / 1 s, campus main distribution with bus coupler arrangement.
- Block sub-distribution boards (DevBox): Separately metered sub-distribution for teaching, lecture hall, laboratory and administrative blocks.
- Laboratory supply branches: Separately protected supply for sensitive equipment, generator-backed where required.
- Lecture hall and conference hall panels (DevPower): Stage lighting, dimmer supply and sound system circuits.
- Power factor correction (DevComp): Detuned compensation in small steps, matched to the variable campus load.
Technical Configuration
| Installed power | ≈ 4,800 kVA |
|---|---|
| Transformer configuration | 3 × 1,600 kVA |
| Medium voltage level | 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 | 2 × 1,000 kVA |
| Verification standard | IEC 61439-1, IEC 61439-2 |
Devpan Products Used in This Project
Project-Specific Engineering Topics
Protecting laboratory equipment
Sensitive measuring instruments and experimental rigs are affected by voltage fluctuation. Laboratory branches are protected separately and critical rigs are transferred to a generator-backed supply.
Lecture hall lighting and dimmer load
Stage and lecture hall lighting is controlled by dimmer drivers; those drivers generate harmonics, so the branch is protected separately and the compensation is specified with detuned reactors.
Block-based metering and isolation
Every block is metered independently and can be switched out on its own where required; maintenance in one block does not affect the whole campus.
Escape lighting under high occupancy
Emergency lighting and wayfinding systems in the lecture halls and corridors are protected separately and collected on the branch that stays supplied in a fire scenario.
Frequently Asked Questions
How is the supply planned in university laboratories?
Laboratories are fed from a separate protection stage and critical experimental rigs are transferred to a generator-backed branch. Because sensitive measuring instruments are susceptible to voltage fluctuation, these branches are kept apart from the socket outlet and lighting circuits.
What is the installed power for the Haliç University campus?
For a campus of this scale the installed power is approximately 4,800 kVA, with a typical transformer configuration of 3 x 1,600 kVA. The main busbar rating is planned at 2 x 2,500 A with a short-time withstand current of 65 kA / 1 s.
Why does lecture hall lighting require a separate branch?
Because lecture hall lighting is controlled by dimmer drivers and those drivers generate harmonics. A separate branch both limits the spread of harmonics into other circuits and allows the stage scenarios to be controlled independently.
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Tajikistan SchoolsSchool campus · TajikistanDo you have a project of a similar scale?
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