Substations & Bus Ducts
Bus Duct / Rising Mains
Aluminium or copper bus ducts and rising mains rated from 100 A to 6000 A.
View details: Bus Duct / Rising MainsSubstations & Bus Ducts
Compact Substation (CSS)
Factory-assembled MV switchgear, transformer and LV panel in one enclosure: 11 kV / 33 kV, up to 4000 kVA.
Overview
A Compact Substation (CSS) is a factory-assembled, self-contained electrical substation that transforms and distributes medium-voltage (MV) power to low-voltage (LV) networks in a safer, space-saving and efficient way.
It is commonly used in residential complexes, commercial buildings, industries, infrastructure projects and renewable energy plants.
Key features
- High performance
- Reliable and durable
- Customised solutions
- Cleaner environment
| Factory-assembled unit | MV switchgear + distribution transformer + LV panel |
|---|---|
| Voltage class | 11 kV / 33 kV |
| Frequency | 50 Hz |
| Rating | Up to 4000 kVA |
| Transformer | IEC 60076 / IS 1180 (Dyn11, ONAN, tapping) |
| MV switchgear | IEC 62271-200, short circuit 16-25 kA / 3 s |
| LV panel | IEC 61439-1 & 2 / IEC 60439, busbar up to 8000 A, 50 kA / 65 kA withstand |
| Complete CSS assembly | IEC 62271-202 / IS 14786 |
| Degree of protection | IP23 / IP54 (IEC 60529) |
| Enclosure | CRCA sheet, powder coated, 60-80 microns |
| Testing | Routine and type tested as per IEC standards |
| Earthing | Separate body and neutral earthing, less than 1 ohm (site requirement) |
Applications
- Renewable energy
- Industries & plants
- Transportation & metro
- Commercial buildings & smart cities
- Power generation & distribution
- Infrastructure projects
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