tender for work for rewinding & overhauling of cooling fans of transformers, replacement of gaskets in marshalling boxes alongwith other associated worksat132 kv substation colonelganj under electricity trans. division gonda sl. no. item description 1 rewinding of 3 phase 440 volt, 0.5 hp capacity cooling fans of power transformers. the work includes dismantling of cooling fans from the transformers, its carriage to repair workshop & back after due rewinding. replacement of defective ball bearings oiling, greasing etc and finally mounting of cooling fans on the transformers with proper electrical connection for satisfactory running as per details given below: 2 40 mva t/f- i, ii and iii at 132 kv substation colonelganj. 3 overhauling & servicing of 3 phase, 440 volt, o.5 hp capacity cooling fans of power transformers. the work includes dismantling of the cooling fan from the transformers its carriage to repair workshop & back after due replacement of defective ball bearing, oiling, greasing etc and finally mounting of the coolng fans on the transformers with proper electrical connection for satisfactory running as per details given below: 4 40 mva t/f- i and ii at 132 kv substation colonelganj. 5 replacement of damaged rubber gaskets and glass 6 mm thick in the door of marshalling boxes of transformers by providing & fixing of rubber gaskets of same size for making its dust & vermin proof & glass. 6 for 40 mva t/f- iii at 132 kv substation colonelganj. 7 providing & fixing of 415 volt ac 10amp 4 pole power contactor alongwith auxiliary contact (as per smple-l&t make) including proper electrical connection as per drawing for satisfactory automated running of cooling fans as per details given below: 8 40 mva t/f- i at 132 kv substation colonelganj. 9 p&f of thermal o/l relay (as per smple) including proper electrical connection as per drawing for satisfactory automated running of cooling fans as per details given below: 10 40 mva t/f- i and ii at 132 kv substation colonelganj.