Cahors Medium Voltage division’s Compact Secondary Substation (CSS) is a type tested assembly for applications where power is transformed from MV (medium voltage) to LV (low voltage) systems. It comprises an enclosure containing all the required MV switchgear, distribution transformer, LV switchboard, connections and auxiliary equipments
Tested according to the latest IEC 62271-202 specifications
Internal arc fault Type AB tested at 20 kA, 1 second
High level of safety for equipment and staff
All equipment inside the CSS is type tested according to IEC standard.
Footprint engineered to meet required clearance standards
Can be lifted with transformer installed
Engineered for smooth air flow and natural cooling
Locking system for all doors to prevent unauthorized entry of staff
Stainless steel hinges for corrosion resistance
No access to live parts
Possibility of container transportation.
Transformer – CSS is designed and manufactured to oil filled or dry type transformers.
Medium Voltage Switchgears (11, 22, 33 kV)-CSS can be provided with different options of MV switchgear from Cahors Medium Voltage Division’s portfolio of SF6
insulated modular secondary switchgear/VCB.
GIS Medium voltage switchgear is also available.
Remote control interface for load break switch.
Low Voltage – Fuse or breaker protection mounted between the transformer and LV side.
Various numbers and ratings of outgoing feeders can be provided depending on transformer size and customer needs.