supply, installation, testing and commissioning of 1000kva, 11-6.6/0.415kv, dual ratio, oil cooled,step down indoor distribution transformer, 3 phase, 50hz, double wound copper oil immersed, natural cooledcomplete with all accessories and safety devices as per cee/kkks specification no. cee(139). specification oftransformer attached in annexure.the essential spares like hv bushing with metal parts and wti of 01 no. eachwill be supplied. (make: eastern transformer, automatic electro gear, ae, century transformer). details inannexure and annexure-a .