KMC/DG(S_D)/BDPS/ES-13/25-26

TOTAL

Item Rate BoQ

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NUMBER #

Attending HT breakdown at consumer switch of CPT canal for detection of fault by testing and rectifying necessary for restoration the power supply Racking down & drawing out of OCB from HT panel after tripping the OCB manually & keeping the OCB in a workable position inside the room.

Dismantling of Incoming cable terminal followed by side-entry cable box. After opening of cable dismantling of burn-out P.T Plug-in-chamber, P.T riser bar and main Busbar from the panel. Rack out of draw out type P.T and kept in a side.

Dismantling of burn out Busbar orifice spout along with main incoming contact terminal.

Dismantling of 3 nos. C.T. and worn out C.T. orifice spout along with main outgoing contact terminal.

After dismantling all the electrical & mechanical accessories of the panel, decarbonized the whole body affected by flash-over carbon by petrol, CTC etc and cleaning and drying by cotton cloth Cleaning and decarbonizes of 3 nos.Busbar by removing burn out insulation sleeve.

Supplying and making indoor cable end termination with heat shrinkable jointing kit complete with all accessories including lugs suitable for following size of 3 core, XLPE aluminium conductor cable of 11KV grade as required: 3M/ Raychem make

Supply, delivery and fitting fixing of Busbar Orifice Spout for Red, Yellow and Blue phase respectively along with shutter mechanism fitting and alignment complete for Busbar side.

Supply of Busbar insulation sleeve (11KV grade) 3M make and insulate properly using heat shrink system

Refixing of insulated busbar with 12mm nut-bolts, spring washer by maintain proper alignment of the busbar chamber.

Supply, delivery and fitting fixing of glass-fiber re-in forced Busbar separator for both end of the Busbar.

Supply, delivery and fitting fixing of C.T. Orifice Spout for Red, Yellow and Blue phase respectively along with shutter mechanism fitting and alignment complete for C.T. side.

Supply, delivery and fitting fixing of Resin moulded Current Transformer 11KV grade, Ratio- 100/5 of reputed make Biecco type.

Repairing and fitting fixing of Resin moulded P.T. Plug-in-chamber Insulators along with riser bar complete.

After drawing out of VCB complete dismantling of all the mechanical parts of the VCB after removing to a workable position inside the sub-stn. After dismantling of all the components like roller, main latch, trip latch, s.s. spring, self spring, ratchet etc should be properly overhauled by petrol & transformer oil to remove carbon particles & after overhauling re-fix as per existing way for inter locking arrangement, bush, spring etc replace.

Supply & fitting fixing of power-pack unit with necessary control wiring.

Supply & delivery of auxiliary rotary switch model no.PA128162B1/MB.

Supply & fitting fixing of shunt trip coil.

Supply & fitting fixing of 3 ph LED Ammeter CL 0.5

Supply & fitting fixing of 3Ph LED Voltmeter CI 0.5

Supply of 22.5 mm dia LED indicating lamp

Complete panel wiring by supply & installation of 1.1kv grade unsheathed copper PVC insulation wire 7/.029 or 2.5 sq. mm.(Make KDK, Rajnigandha, Evershine, Finolex) laying inside control circuit panel through PVC front cover cable tray with all necessary including numbering, ferules, socketing, crimping joints for measuring instrument relay, power-pack from C.T & P.T including supply & fixing of 2 nos. push button, 16 nos 6-10Amps HRC fuse cartridge, binding tape, numbering ferules, flexible PVC pipe etc. The C.T’s secondary connection should be short circuited & proper ground earth. Reconnection of H.T cable terminal joint.

Supply delivery & fixing of panel Heater 230V AC and Thermostate with complete wiring by ferule marking

Painting of the Switchgear surface after proper cleaning by emery paper, brush petrol etc by one coat of primer & two coats of synthetic enameled paint of approved quality with necessary marking.

Commissioning after thorough Testing of all Relays & tripping test by primary injection test and H.V test of VCB, incoming & outgoing cable and P.T.

Engagement of HT professional for testing of the commissioned line for proper setting of the protective equipments

Discharging the primary and secondary side of transformer properly by earth rod. Open out all the cables from HT & LT side making proper tag marking of all cables.

Dismantling of top cover, side cover, gourd bar, tap-changing switch handel etc of the transformer.

Thorough cleaning & removing of dust & sludge from the tank, Core & coil assembly, tap changing switch etc by CTC with the help of soft brush, clean cloth with hot air jet pressure arter dismantling of HV & LV connection from bushing terminal end of inside transformer as per direction of EIC.

Re- insulation all the HT coil lead properly with HT insulating tape, vernish etc, and testing of primary & secondary coil resiatance, IR value with respect to earth & H.V test etc, and after completion of test terminate all the cable leads as per existing way and refixing the top cover, side cover gourd bar, tap changing switch handeletc of the transformer after cleaning properly and as per direction of EIC

Spray painting of outside surface of the transformer with one coat red oxide primer & two coat of synthetic enameled make after proper cleaning of the said transformer.

Repairing and calibration of temperature scaner of transformer

Dismantling, Servicing, cleaning, testing, re-fifling and calibration of the 630 kva Transformer consist of over current-2nos , Earth fault - 1no, differential relay under voltage relay-1no, Transformer protection relay -3nos, master trip relay - 1nos (CDG 61, VAJH 13 & VAA 11, VAX 31, CAG 14 ) .

Servicing and overhauling 1000 amp A.C.B. after withdrawing the breaker from its track, complete servicing of the breaker.

LT Bus bar & cleaning by petrol, etc after cleaning re-insulation the bus bar by class-f grade insulation & re-fixing as per existing way of lt panel board unit-a&b.

Re-fixing of all Busbars in panel by 12mm nuts, bolts & washers maintaing proper phase sequence.Termination of all Incomer cable, pump motor feeder cable & lighting feeder cable.

Shifting of 150 KVA Transformer, 4 numbers of spools of used cable from CPT Canal DPS to BDPS by engaging vehicle and skilled manpower along with necessary tools and tackles

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