Providing and fixing of idmt relay, e/l relay with cbct, digital meter and other items in different 07 nos. 11kv and 3.3kv vcb, ocb at main 11kv/3.3kv substation for protection and safety purpose under bhurkunda colliery.

A)cork sheet bushing oil leakage stopping of 500kva,11kv/440v transformer, sl.no.800/30, ngef make at madhuban dg b)200kva,11kv/550v transformer used for birajpur c)providing and fitting of 630a mccb, 04pole for controlling of birajpur s/s at ampc.

Repairing and fixing of wti and oit and buchholz relay along with painting of one (01) no. 11kv/3.3kv, 3mva and one no. 11kv/3.3kv, 2.5 mva transformer at 02 no. sub-station considering dgms guideline and safety of the equipment under katahra collier

Complete repairing and rewinding of (a) 01 no. 630kva, 3.3kv/440v k-sambhav make, with sl. no. ktc/tr/630/12 and (b) 01 no. 500kva, 11kv/440v gec make with sl. no. 22426418 oil cooled transformer for colony power supply under kathara colliery.

Transformer oil filtration testing providing of silicagel with breather cork sheet stud changing temperature meter fitting at different side of abdkc.

Repairing and replacement of insulator bushing with connection terminal and top cover an primary and secondary side cork sheet for 500kva power transformer 11kv/ 550v and installation near goushala for feeding power to borehole submersible pump set 0

Repairing work of power transformer of 10 mva, 33kv/6.6kv of central substation nigahi project and installation, testing, commissioning of different breaker isolator and filtration of transformer oil and maintenance of transformer at sector sub stati

For partial repairing and installation of buchholz relay, winding and oil temperature meters of 500kva, 11kv/440v lighting transformer make kva process ltd sl no 11/1380 of sector 2 substation of east basuria colliery in respect of kusunda area.

(a)complete repairing of 3.3kv, 400amps vcb switch andrew yule make type nflp, sl.no.3837 and (b)repairing of bucholz relay wti and oti protective device 11kv/3.3kv transformer for controlling of f.n.-2 upper side s/s of mocp f/b of amp colliery.

(a). repairing of 3mva transformer 11kv/3.3kv make-andrew yule, sl.no.-10619 charged at main sub-station of gvp project and (b). replacement of bushing insulator with stud, nut and cork sheet of 500kva, 3.3kv/550v transformer, make-marson, sl.no.-129