Compact Substation Manufacturer :- Thus CSS is all in one compact substation which has all the necessary devices. CSS are ranges from 250 KVA to 5000 KVA of 3.3, 6.6, 11, 22 & 33 KV voltages class. This transformer can be installed in various field of operation such as Casting industries, Textile industries, Residential areas, Solar farms, Wind farms, etc. CSS consist of all the necessary equipment such as VCB, DRY TYPE TRANSFORMER, LBS, RMU, PROTECTIVE RELAYS etc. This CSS is easily transferable and can be taken into work within a limited period of time. All you have to do is to give H.V side and L.V side connections and your CSS is ready for use which is safe and reliable.