Part re winding and maintenance work of the 11 kv by 3.3 kv, 2 mva, sr. no. 458 a/ 4, east india electricals make transformer, installed at the 11 kv by 3.3 kv main substation of karo ocp, under bnk area

(a) repairing of one no neutral grounding resistor 3.3kv grade 200amp sl no htrn1569 in circuit with 3 mva 11kv /3.3 kv transformer (b) repairing of one no battery charger 415 volt /110 volt 30 amps with laying of dc , ac control circuit for diffe

Supply and installation of 3.3 kv grade neutral grounding resistor (ngr) with safety features at 10no. substation of sarubera project under kuju area

Repairing and part rewinding of one no. 3.3 kv, 350 kw, 1490 rpm, marathon electric make, sr. no. f330123 by 1, three phase induction motor, installed in mine at karo ocp, under bnk area

A) installation and commissioning of 3.3 kv ngr in two nos merson s make 01 mva trans-former installed at kalimati and shivmandir substation bearing sl no 11221 and 28672 re-spectively of chapapur colliery&#x0d b) installation and commissioning of 02 nos

Onsite supply n installation of 02 nos 3.3 kv grade, 10 amps neutral grounding resistor for 02 nos 11kv/3.3kv power transformer installed at main substation in respect of karo ocp , bnk area

Overhaling of on load tap changer switch of 10 mva 33/11 kv transformer (tf no 1 areva make and tf no 2 and 3 cgl make) installed at 33 kv substation

Onsite repair cum prive maintenance of two nos. of vcb switches, first, 11 kv, 400 a, meditron make, sr. no. 9470, second, 11 kv, 1250 a, andrew yule make, sr. no. 2242, and one no. of ocb switch, 3.3 kv, 400 a, sr. no. 82249, reyrolle burn make

Onsite repair and maintenance of two nos. of vcb switches, first 3.3 kv, 1250 a, andrew yule make, sr. no. 2545, second, 3.3 kv, 800 a, andrew yule make, sr. no. 0017, and one no. of ocb switch, 3.3 kv, 400 a, reyrolle burn make, name plate missing,

Maintenance and servicing of with commissioning of 1.5 mva 11/3.3 kv transformer make the national electrical industries ltd. sr. no.- ry/2646/5 to be installed at new chp sub-station of gkk colliery under kusunda area.