Compact Substation (C.S.S.)
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Power Generator Company in India
As one of the leading compact substation manufacturers in india, we specialize in providing safe, reliable, and space-saving power distribution solutions through our range of UniPack compact secondary substations (CSS) up to 36 kV. Our product range includes 11kV and 33kV compact substations, as well as ABB compact substations, which are available in our ABB compact substation catalog. We also offer compact package substations and compact secondary substations to cater to the diverse needs of our customers.
Our compact substation solutions offer numerous advantages, including lower installation and maintenance costs, reduced footprint, and improved safety. Our compact substation price in India is highly competitive, and we are committed to delivering high-quality products and exceptional customer service. Whether you’re looking for 11kV 433v 1250 kVA compact secondary substation (CSS) or 15kVA compact substation solutions, we have got you covered.
As one of the leading compact substation suppliers in the country, we take pride in delivering high-quality products and services that meet the unique needs of our customers. Contact us to learn more about our compact substation solutions and how we can help you optimize your power distribution system.
Technology Advantage
CSS is a prefabricated substation, factory-designed, tested and ready-to-install and is fully compliant with IEC 62271-202 (IEC 61330). Our compact substations are engineered to the highest possible standards for personnel safety and aesthetics, designed to help solve problems of footprint and space limitations experienced within dense urban load centers. ABB’s CSS has the highest installation base in India as well as around the world.
Salient Features
- Modular construction of enclosure provides high degree of flexibility to meet specific site requirements
- Fully compartmentalized construction for MV switchgear, transformer and LV switchgear
- Specially designed ventilation system to suit local climatic conditions
- Appealing aesthetics
- Safety ensured for operator, public and environment
- Low life-cycle cost
Product Portfolio
Outdoor CSS for secondary distribution up to 36kV configuration
- MV switchgear
- Step-down distribution transformer
- LV switchgear
Outdoor CSS for wind power evacuation at 36kV configuration
- LV switchgear
- Step-up distribution transformer
- MV switchgear
Indoor frame mounted CSS for secondary distribution up to 24kV configuration
- MV switchgear
- Step-down dry type distribution transformer
- LV switchgear
- Transformer enclosure type-tested for IP2X and enclosure class k10
- Customized design to suit site conditions
- Factory-designed and tested interconnections
Advanced construction for CSS enclosure
The enclosure of the outdoor CSS is manufactured using high quality pre-galvanized sheet steel.This provides high resistance to corrosion, which is paramount in outdoor applications. CSS is typically divided into three compartments for – medium voltage switchgear, low voltage switchboard and distribution transformer. The detachable roof with ventilation opening is beam supported and secured at each corner with bolts.
Modular construction
The enclosure’s wall units, roof and doors are constructed using standard modules. Its limiting dimensions are 3830 x 2330 x 2415 mm (L x W x H)
Advantages:
- High mechanical strength
- Flexibility in design, different layout possible.
- Appealing aesthetics
Clinching technology
Self-interlocking modules are inter-connected using clinching technology. All load bearing members are of 2 mm thickness and non-load bearing members are 1.5 mm thick.
Bolting is used only for the base frame and lifting fittings.
Advantages:
- New-age technology, free from rivets and screws
- Piercing of sheet metal is eliminated
- Enhances mechanical strength of CSS enclosure
- Water and air-tight joints
Painting
Enclosure is painted with polyurethane paint.
Advantages:
- Aesthetic, glossy finish.
- Outdoor durability.
- Resistant to corrosion.
- Resistant to chemicals and stains.
- Abrasion resistant.
Ventilation
Ventilation is achieved by means of natural air circulation from the louvers of wall/door to the top of the roof using thermo siphon effect. Sufficient cooling of distribution transformers is achieved by means of ventilation openings in the transformer compartment, which is designed taking into consideration the transformer rating, losses and climatic conditions. A standard CSS is classified and type-tested in accordance with enclosure class requirement.
Doors and locking system
All compartment doors are fixed with stainless steel hinges, which provide high mechanical strength. Press-fit type gaskets ensure IP protection. Locks are equipped with concealed shooting bolt arrangement and complete with a magnetic flap. A padlock is also provided to protect against vandalism.
Flexible electrical composition
Medium voltage switchgear
The MV compartment can be equipped with SF6 insulated compact Switchgear Type Safe Ring upto 36kV.
For 36kV Compact Secondary Substation, air insulated switchgear with vacuum circuit breaker can also be offeredAdvanced
Distribution transformer
Oil-type transformer
Oil-insulated transformer can be provided with CSS up to 36kV. Fully hermetically sealed transformer with low losses and low temperature rise are used in CSS.
- Corrugated-wall type design without conservator.
- Leak-proof design due to elimination of conservator.
- Eliminates routine maintenance activities such as breatherchecking, periodical oil-testing and filtration.
- High efficiency design with low loss and low temperature rise.
![Power Generator Company in India](https://goelpower.in/wp-content/uploads/2023/01/Compact-Substitutions-13-300x300.png)
![Compact-Substitutions-12.png Compact-Substitutions](https://goelpower.in/wp-content/uploads/elementor/thumbs/Compact-Substitutions-12-q8wjbl25qbb7g1u1qpbm50246hf887vtcl3txvbzno.png)
Dry-type transformer
Dry-type transformers can be provided with CSS up to 24kV
Advantages:
- Resin is used as the insulating medium for longer life.
- Maintenance-free.
- No fire hazards.
- Enhanced safety.
- Environment-friendly.
Low voltage switchboard
A fully customized solution type-tested as per IS/IEC standards is provided as per customer requirements. The low voltage switchboard can be designed in different arrangements and configurations in order to suit a specific application with required equipment such as:
- Air circuit-breaker (ACB)
- Moulded case circuit-breaker (MCCB)
- LV fuse switches / fuse ways.
- Automatic transfer schemes (ATS).
- Street lighting systems.
![Compact-Substitutions](https://goelpower.in/wp-content/uploads/2023/01/Compact-Substitutions-14-300x300.png)
Internal earthing
The earthing of the CSS is made by 50 x 6 mm GI strip. The continuity of earth system is ensured taking into account the thermal and mechanical stresses.
Connection between equipment
Personnel and equipment safety is the major concern. In order to ensure complete safety of equipment used in a CSS, especially the transformer bushings, the connection between the transformer and the RMU is made with XLPE insulated cables. The connection between the transformer and LVDB is made with cable / busbar.
![Power Generator Company in India Power Generator Company in India](https://goelpower.in/wp-content/uploads/elementor/thumbs/Compact-Substitutions-15-q8wjbl25qbb7g1u1qpbm50246hf887vtcl3txvbzno.png)
Optional features
- Tariff metering for MV in a separate compartment.
- Automatic Power Factor Correction Panel on LV side.
- Smoke detector and fire alarm system for transformer compartment
- Motor operation of LV and MV equipment for SCADA connectivity
- Special enclosure colour options for outdoor CSS
- Touch-proof plug-in MV terminations for transformers.