For repairing of incomer 400a,6.6kv, ocb switch sl.no. bsp/switch/06 make ferguson at ekra substation basdeopur colliery under sijua area

Repairing of 11kv 400amp ocb switch make crompton greaves si no. not available of jarangdih colliery.

Complete repairing / reconditioning of 3.3kv ocb switch, 400amp, make-kirloskar installed at ht room for primary control of two ocb switch of plant and 3.3kv ocb switch, 400amp, make-bicollary, s/n-sgw-1(wnp) for power supply to oversize transformer

Repairing and reconditioning of one no. 11kv 400amp. vcb and one no. 3.3kv 400amp ocb switch of kuju colliery under kuju area

Complete repairing / reconditioning of 3.3kv ocb switch, 400amp, make-rerolled burn, s/n-wnp installed at main substation for controlling of plant 3.3kv grade capacitor bank and 11kv ocb switch, 400amp, make-gec, s/n-sgw-1 both installed at main subs

(a) repairing and reconditioning of protective device of 2mva power transformer, volts-11kv/3.3kv, si. no wnp, ktc/enm/9.0/tr/04 installed at 9.0 of kathara colliery, (b) repairing of 3.3kv, 400a ocb switch make-beccolary, sl. no. wnp ktc/enm/9.0/ocb

Repairing/reconditioning of 01 nos 11kv,400amp ,rey roll burn make ocb s.no. 82/153 and 3.3kv ,400amp southern switch gear ocb s.no. 0766/959 of kuju colliery under kuju area.

Repairing and fitting of safety device electronic relay fitted for 3.3kv and 400amp ocb switch at bhowra south colliery for two no of switch.

For repairing of 6.6kv, 400amps cooke and ferguison make ocb switch sl.no.9681 at sendra bansjora colliery.

Providing and fitting of bottle contact 200amp for 11kv 400amp vcb switch at jarangdih colliery.