Montenegro Power Plant is an energy generation facility in Montenegro. Devpan supplied Dev24/36 medium-voltage modular switchgear together with auxiliary main distribution, MCC, power factor correction and sub-distribution panels.
Electrical Profile of the Project
- LocationMontenegro
- Building typePower plant
- Installed power≈ 2,500 kVA
- Transformer configuration2 × 1,250 kVA
- Main busbar rated current2 × 1,600 A
- Short-time withstand current (Icw)50 kA / 1 s
- Devpan scopeMedium voltage switchgear, low voltage switchboards and engineering
- Verification standardIEC 61439-1, IEC 61439-2
About the Project
A power plant’s auxiliary system supplies every load needed to keep generation running: pumps, fans, cooling and lubrication systems, the control building and ancillary facilities. An interruption here can translate directly into lost output. Montenegro’s climate, which varies between the coast and the mountains, means high humidity, condensation and a wide temperature range, while dust and water spray in the plant environment call for switchboards with a high degree of protection.
For a facility of this scale the typical solution is a 10 kV medium-voltage network built with Dev24/36 modular panels, feeding a low-voltage main board with a 2 × 1,600 A split busbar through auxiliary transformers of approximately 2 × 1,250 kVA. A 50 kA / 1 s short-circuit rating, Form 3b separation and IP54 – IP55 protection suit site conditions. Motor control centres manage the auxiliary motors, and a generator of about 800 kVA supports critical auxiliary loads if the grid is lost.
Devpan Scope and Switchboard Architecture
Devpan’s scope extends from medium-voltage modular switchgear to the auxiliary low-voltage distribution and motor control.
- MV modular switchgear (Dev24/36): 10 kV incoming, metering, transformer protection and coupler panels.
- Auxiliary main distribution board (DevPanel): 2 × 1,600 A split busbar with coupler, 50 kA / 1 s, Form 3b, generator transfer.
- Motor control centres (DevControl): Starter and drive feeders for pumps, fans and auxiliary systems, IP54 – IP55.
- Power factor correction panels (DevComp): Detuned reactive power compensation.
- Sub-distribution boards (DevBox): Distribution for the control building, workshop and ancillary facilities.
Technical Configuration
| Installed power | ≈ 2,500 kVA |
|---|---|
| Transformer configuration | 2 × 1,250 kVA |
| Medium voltage level | 10 kV (Dev24/36) |
| Low voltage / frequency | 400 / 230 V, 50 Hz |
| Main busbar rated current | 2 × 1,600 A |
| Short-time withstand current (Icw) | 50 kA / 1 s |
| Form of internal separation | Form 3b |
| Degree of protection (IP) | IP54 – IP55 |
| Generator back-up | 1 × 800 kVA |
| Verification standard | IEC 61439-1, IEC 61439-2 |
Devpan Products Used in This Project
Project-Specific Engineering Topics
Auxiliary supply continuity
Auxiliary loads are balanced across two busbar sections; if one transformer is lost, supply continues through the coupler.
Humidity and condensation
Anti-condensation heaters, thermostats and gasketed enclosures prevent condensation across a wide temperature range.
High degree of protection
IP54 – IP55 enclosures protect components against dust and water spray in the plant environment.
Protection coordination
Selectivity between MV relays and LV breakers isolates a fault at the nearest point.
Frequently Asked Questions
What is the installed power for Montenegro Power Plant?
For the auxiliary distribution of an energy facility of this scale the installed power is approximately 2,500 kVA, with a typical transformer configuration of 2 × 1,250 kVA. The main busbar is typically rated 2 × 1,600 A with 50 kA / 1 s withstand, the medium voltage is 10 kV (Dev24/36) and the generator is around 1 × 800 kVA.
Why use Dev24/36 panels on a 10 kV system?
With a 24 kV insulation level, the modular design gives a generous insulation margin at 10 kV and lets incoming, metering and protection functions be combined flexibly.
Is Form 3b sufficient for power plant switchboards?
For auxiliary systems of this scale Form 3b is a balanced solution, separating functional units so neighbouring feeders stay in service during maintenance.
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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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