ResiTec Unitised Sub Station(USS) consists of a cast resin air cooled transformer. 12KV load break switch panel and proision on LV side for MCCB or ACB. The Whole assembly is mounted on to a rigid base and enclosed in a power coated and vetilated enclosure. The USS has to be mounted on a concreate foundation. The USS can also be given with dry type OLTC upto a capacity of 2000KVA.