Maintenance and reconditioning of 2 nos. vcb (11kv and 6.6kv, pce make), 2 nos. ocb switch (11kv, 800 amp, gec make), sf6 abb make breaker (33kv, 1250 amp), maintenance of ct, and repairing of 11kv capacitor bank control panel at central substation

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

Repairing of 3.3kv 400amp ocb switch make johnsion phillips si no. wnp at quarry electrical sub station of jarangdih colliery.

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 3.3 kv ocb switch, 400 amp, make-bharat bijlee, s/n-sgw-2 installed at ht room for proper power supply to oversize restriction plant and ii) 3.3 kv ocb switch make-kirloskar, s/n-401001-34 installed at main sub-

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.

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

(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 and reconditioning of 2 nos control panel a. 11kv, 400amp reyroll burn make ocb local sl no kugp ocb 11kv 002 and3.3kv 400amp ece make ocb local sl no kugp ocb 3.3kv 003 ocb of kugp under hazaribag area

Repairing of 3.3kv ocb switch, sl. no. d16930, metropolitan vickers make for controlling of 100kva lighting transformer of hathidari substation mine b under bhurkunda colliery.