Maintenance and reconditioning of 01 no.1250a, 33kv mocb, make-bhel si.no. 9027893 for primary control of 5 mva transformer 33kv/11kv feeding power to jarangdih feeder from regional substation under kathara colliery.

(a) maintenance and reconditioning of 1250 amp 33kv mocb primary control of 10 mva 33kv 11kv jarangdih feeder at regional substation of kathara colliery under kathra area. (b) dismantling and replacement of 33kv grade oil cooled current transformer o

Feeder at regional substation of kathara colliery under kathra area. (b) dismantling and replacement of 33kv grade oil cooled current transformer of sawang feeder 10 mva 33kv 11kv power transformer regional substation kathara under kathara area.

For 11kv bus-bar arrangement for 10mva 33kv 11kv transformer make sambhav at regional substation of kathara colliery

Repairing and maintenance of 02 nos. 1250a, 33kv grade sf6 kirloskar make at regional substation of kathara colliery.

Repairing/ reconditioning of 02 no, sf6 breaker ,33kv, 1250a make abb power controlling to 33kv feeder and primary control of 12.5 mva, 33kv/6.6kv transformers installed at 2 x 12.5 mva 33kv/6.6 kv main substation, rp

Maintenance and reconditioning of 1250a 33kv mocb of allind make installed for primary control of 10mva 33kv/6.6kv transformer at central sub-station basantpur under hazaribagh area

Installation of 2 mva, 33kv/11kv power transformer at 33kv substation at khottadih colliery, pandaveswar area.

Maintenance and reconditioning of 630 amp, 33kv, siemens make mocb primary control of 5 mva transformer with installation of ct at gidi washery sub-station under argada area.

Installation of differential protection relay for 10 mva, 33kv/11kv, transformer make- sambhav of kathara colliery