Repairing of safety circuit of the following ocb of tilaboni colliery under bankola area. 1. c and g make 3.3 kv 400 amps ocb 03 nos sl 01 02 803. 2. 3.3kv 400 amps ocb switch 01 nos sl 01 retender.

Complete repairing of 400 amps reyrolle burn make 3.3 kv ocb switch of khandra colliery under bankola area.

Complete repairing rewinding of 400 amps 550v reyroll england make ocb switch of bankola colliery.

Repairing of 400 amps gec make 11kv ocb (ht switch) at millinium incline shankarpur colliery under bankola area

Complete repairing of gec make 400 amp 11 kv ocb switch of bankola colliery

Complete repairing/ overhauling of two (2) nos switch (a) 11 kv 400 amps ocb switch make ece local id. bag/sw/ ocb/11kv/05 and (b) 11 kv 400 amps ocb switch make ece local id. bag/sw/ ocb/ 11kv/03 03 at bagdigi colliery of amal. joyrampur colliery

Complete repairing of 3.3 kv 3 phase 400 amps ocb of gec make sl no bh(s)/ocb/15 of bhowra south colliery

Repairing of 03 &#x0d no.400 amps ocb switch &#x0d 6.6 kv and 3.3 kv of &#x0d keshalpur sub-station &#x0d of &#x0d akwmc under &#x0d katras &#x0d area.(a) &#x0d repairing of 400 amps &#x0d ocb switch 6.6 kv,make &#x0d southern switch gear &#x0d sl.no.0682/86

1) upgradation of 400 amps, 3.3kv grade becolarly make, oil circuit breaker (ocb). &#x0d 2) upgradation of 400 amps, 3.3kv grade ece make switch of barmondia colliery under salanpur area.

Complete overhauling repairing of 5 nos of 3.3kv grade 400 amps circuit breaker (a) meditron make 3.3 kv 400 amps sl no 017 for control of colony power supply installed at kmp colony (b) electrotecnica make 3.3 kv 400 amps sl no fs024 for con