The Compact Sub Station (CSS) also known as Packaged Sub Station (PSS).
The Compact Sub Station (CSS) is a compact enclosure consisting of MV switchgear, a transformer, LV switchboard along with interconnections and auxiliary equipment to transform energy from medium to low voltage system located in three separate compartments which are segregated from each other by means of partitions in order to ensure personnel safety. Accessibility to operate or maintain the equipment is through lockable doors provided for each compartment to maximise security. Assembly of the complete substation is factory ready to minimise site installation time and cost. All equipment is of high quality and tested as a complete unit.

Medium Voltage Switchgear
The MV Switchgear compartment is Equiped with Compact Ring Main Unit (RMU) &Vaccum Circuit Breaker (VCB).

Transformer
The dry and oil type transformer can be installed inside the transformer compartment, the transformer rating for the oil type transformer is up to 2500 KVA. The transformer compartment design provide smooth air flow and natural cooling in order to meet the temperature rise requirement as per standard.

LV Switchboard
The LV Switchboard compartment contains Low Voltage distribution board which is fed from the secondary side of transformer. The LV Switchboard can be designed as per customer. Different types of switching devices, Breaker (ACB or MCCB) or fuse switches can be accommodate inside the Panel.