Repairing and maintenance of 11kv and 3.3kv bus bar of 2 mva , dumerbera sub-station along with repairing of damaged wall and fixing of existing main gate of 2mva dumerbera sub-station of ara project under kuju area

Repairing and complete rewinding of the national electrical indus ltd. make ,1mva,11kv/3.3kv, s.no. ry/775 , power transformer installed at dumerbera substation of ara colliery under kuju area.

Work for con of existing 3.3kv bus-bar of ara-kanta substation into 11kv bus-bar, dismantling of complete 3.3kv oh line from ara -kanta substation to dumerbera substation and installation of transformers at ara kanta substaion

Maintenance of 3.3kv oh line from dumerbera sub-station to 16b quarry and installation of 400a rated goab and do fuse at 16b quarry for safe operation 250kva 3.3kv/440v transformer installated at 16b quarry of ara colliery under kuju

Repairing and complete rewinding of 630kva ,3.3kv/440v, s.no.ara/tr/01, lighting transformer installed at ara kanta substation of ara colliery under kuju area.

Repairing/reconditioning of 3.3kv, 400a, reyroll burn make ocb. sl.no. 82/104, installed at dumerbera sub-station for controlling 3.3kv power supply 10 16b quarry of ara colllery. repairing/reconditioning of 11 kv, 400 amp, ocb of ara colliery.

Supply and installation of 4 nos of timer switch sets to be installed at different location of ara colliery to control the lights installed at po office, dumerbera sub-station, ara kanta substation and 16b quarry of ara colliery under kuju area.

Installation of oil and winding temperature meter with buchholz relay assembley in crompton parkinson make, 1000kva, 11kv/550v transformer of 2 seam s/s of east basuria colliery

Providing and fixing a safety device like buchholz relay, oil, and winding temperature meter and connecting with tripping device to both 3mva, 11kv/3.3kv power transformer i.) make- g.e.c., amp. 157.6/525.5, 3 phase, 50hz., sl. no. ct4368/b-24065 and