KMC/MDPS/DB/HT2CT/44/25-26

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NUMBER #

Drawing out & Racking down the VCB from HT panel after tripping the VCB manually & keeping the VCB in a workable position inside the room.

Supply and delivery of epoxy resin cast Current Transformer (Make Areva) & bearing the technical specification: Primary current : 60/5Amp, Frequency : 50Hz, Insulation level: 6.6/11KV, Short time current: 6 KA for 1 Sec. , C.T. ratio 60/5+5(Amp), VA-15, Class: 5P10

Cleaning of H.T Spouts with Dry Cotton & CTC/CRC to make dust free after discharging the stored charges using discharging earth rod.

Dismantling of old diffused superfluous wire from C.T Secondary Circuit & remaking all connections & necessary control wiring by 2.5 SQ.MM Havells/Finolex makes flame graded flexible PVC insulated copper wire with necessary ferules marking.

Open out 3 nos. HT HRC Fuse Cartridge & dismantling of 3 nos. bushing from P.T chamber. after dismantling , replacement of bushing, gasket , cleaning bushing studs by CTC, Petrol etc. to make carbon free. after cleaning re-fixing bushing by new gasket as per existing way.

Fitting Fixing of above mentioned Current Transformer at Biecco make Switchgear CTR 60/5/5(Amp).

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, 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.

Complete checking , cleaning and overhauling of H.T Busbar sleeves tightness of various jumpers and spares etc.

Supplying of following three core HT power cable with stranded compact circular aluminium conductor, conductor screen with extruded semi conducting compound, XLPE insulated, insulation screening with extruded semi conducting compound in combination with copper tape, cores laid up, innersheath of PVC, galvanised steel flat strip armoured and overall PVC sheathed cable conforming to IS 7098 (Part-2) 2011 with up to date amendments. 3 core 95 sq.mm cable 11 KV(UE).......I&WW 2022 Pg 102 Sl No. 5.3/A 3

Laying of one number PVC insulated and PVC sheathed/XLPE power cable of 11 KV grade of following size direct in ground including excavation, sandcushioning, Brick protective covering and refilling the trench et. As required. Up to120 sq. mm …….I&WW 2022 Pg 103Sl No. 5.3 B/1(a)

Supplying and making outdoor 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 11 KV grade as required : 3M/Raychem make. Up to 95 sq.mm.........I&WW 2022 Pg 104 Sl No. 5.3 C/2(a)

Following testing of CT'S (Protection and Metering) with primary injection to be executed A) Polarity test B) Magnising Curve, C) I.R test D) Ratio test

Checking & Testing Of Indication , closing and tripping circuit including tripping test through all relays.

Necessary Checking ,Testing of ammeter at H.T VCB with necessary calibration according to C.T ratio.

Supply & Fitting Fixing of 230/240V, LED indicating lamp (make: AE/KAPPA/IMP) Blue/white colour……..UD&MA2018/p17/sl.no22(a)

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