(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.

Repairing of (a) 11kv, 600a, gec make ocb switch &#x0d sl.no.-2817 and (b) 6.6kv,400a gec make ocb &#x0d switch sl. no.-m-164 for controlling of 11kv/6.6kv &#x0d transformer at sadbhavna substation under &#x0d muraidih, amp colliery.

Supply and fittingof buchholz relay,windingtemperature and oil temperature projection relaysto give alarm and tripping indications of 2.5mva, 11kv-6.6kv/3.3kv m and b switch gears ltd maketransformer having sl.no prm-210482 installed at surface11kv/6

Cork sheet changing, oil filtration etc. and replacement of av alarm along with oti wii of 1000kva 6.6kv550v transformer sl.no.c6520/82 sbc(ii)repairing 02 nos transformer(a)1mva 11kv/6.6kv(b) 1mva,11kv/3.3kv with fitting box in 6.6kv/3.3kv incoming

Maintenance of 2000kva power transformer 11kv/3.3kv m and b make sl. no. 129031 and fitting of wti, oti and bucholz relay installed at abgc

Supply and installation of oil and winding temperature indicator with the trip/ alarm circuit of primary control switch with repairing of buchholz relay of 04 nos of transformer of khottadih colliery

(a)rewinding and repairing of p.t. 11kv/110v and 6.6kv/110v 3phase and 3.3kv/110v 1phase 05nos.(b)repairing &#x0d of 3.3kv/440v gec make switch sl.no.-m/406 (c)repairing of 1200a lt ocb switch gec make,type k-5, &#x0d 440v,sl.no.50/0254 of muraidih, ampc.

Repairing of oil temperature and winding temperature indicator and mercury switch buchholz relay of 2.5mva and 1mva power transformer along with wiring of control circuit from transformer to control panel at ilbl ocp, lakhanpur area, mcl

Providing, fixing and commissioning of buchholz relay temperature meter and its separate annunciation for alarm and trip in 4 no. 630 kva, 3.3kv/440-volt power transformer installed at different place in r.o. kargali ocp.

Complete rewinding and con of 630kva, 3.3kv/440v transformer make m and b switchgears pvt.lts.si.no. prm 129005 into 11kv/440v ratio for power supply to new hired feeder breaker at slg siding under govindpur area iii