Description

Abb css unit – compact secondary substations CSS ABB MV Products

ABB Compact Secondary Substation , 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 Compact Secondary Substation 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

To explore the comprehensive range of ABB medium voltage products, click here!