CWEK-29/2023-24

Amount

Disconnecting defective out door/indoor transformers of following various capacity upto 500KVA to 750 KVA from HT/LT side, taking out complete transformer oil, storing the same in suitable container (to be arranged by the contractor) opening the top cover and lifting the core assembly by means of tripod and chain pulley block carefully to check its condition, refilling the transformer oil after complete dehydration/filtration if required (to be paid separately) and necessary repairs re fixing complete core assembly and complete core assembly fixing the top cover and re-installation complete all as specified and directed.

All as per Item No 1.00 here-in-before above but distribution transformer of capacity 315 KVA to 400 KVA complete all as specified and directed.

All as per Item No 1.00 here-in-before above but distribution transformer of capacity 200 KVA to 250 KVA complete all as specified and directed.

All as per Item No 1.00 here-in-before above but distribution transformer of capacity 100 KVA TO 160 KVA complete all as specified and directed.

All as per Item No 1.00 here-in-before above but distribution transformer of capacity 63 KVA complete all as specified and directed.

Note Serial item No 1.00 to 5.00. (a) Pole mounted transformer lowering and taking down the same from pole structure to ground carefully if required shall be paid separately under relevant items. (b) In case of major repairs/replacement in transformer which can not be undertake at site the transformer shall be shifted to civil workshop and the cost shall be paid separately under relevant items (c) Cost of dehydration/filtration and other necessary repairs shall be measured and paid separately under relevant item (d) Contractor shall bring the mechanic at site for first inspection of the transformer after that transformer shall be shifted to civil workshop

Dismantling and taking down out door transformer from two pole /four pole structure lowering the same carefully by means of chain pulley block and all other required T&P and re-installation after repairs complete all as specified and directed.

Material and labour for rewinding of LT side winding with copper wire/strip matching with existing size/ gauge, fixing the coil in position in core assembly and making connection as per existing pattern including providing insulation, varnish etc complete all as specified and directed by Engr-in-charge.

Material and labour for rewinding of HT side coil with supper enamelled Copper wire/strip matching with existing size/ gauge, fixing the coil in position in core assembly and making connection as per existing pattern including providing insulation, varnish etc complete all as specified and directed by Engr-in-Charge.

Note - 1. The cost of coil shall be inclusive of varnish sleeve and insulating material etc no extra payment shall be made for the same . 2. Actual weight of wire (used for rewinding) will be measured and paid for each transformer mentioned above.

Replacement of cracked/worn out synthetic rubberized cork gasket 6mm thick for HT/LT bushes etc of various size all as specified and directed.

M &L for painting the outer surface of the transformer / Servo Voltage stabilizer with two coats of synthetic enamelled paint after preparing the surface dust and oil free and cleaning the bushes, name plate etc paint free after painting including writing MES/ SM No with enamelled paint complete all as specified and as directed for fransformer of rating 50 KVA to 630 KVA (Indoor/ outdoor type).

Supply and replacement of silica gel only with fresh blue coloured complete all as specified and as directed.

Supply and fixing in replacement Tap changer switch suitable for Transformer 63 KVA to 200 KVA complete all as specified and as directed.

Supply and fixing in replacement Tap changer switch suitable for Transformer capacity 250 KVA to 630 KVA complete all as specified and as directed.

Supply and replacing HT/LT side cable box cover plate made out of MS sheet of 16 SWG complete with nuts, bolts washers suitable for indoor / outdoor type transformer of capacity 63 KVA to 400 KVA complete all as specified and as directed.

M&L for replacement of HT 11 KV bush insulator suitable for distribution transformer of any type and of size upto 200 KVA complete, all as specified and as directed.

M&L for replacement of HT 11 KV bush insulator suitable for distribution transformer of any type and capacity 250 KVA to 630 KVA complete, all as specified and as directed.

M&L for replacement of LT bush insulator suitable for distribution transformer of any type and of size upto 200 KVA complete, all as specified and as directed.

M&L for replacement of LT bush insulator suitable for distribution transformer of any type and capacity 250 KVA to 630 KVA complete, all as specified and as directed.

M&L for replacement of HT bush rod made out of brass with nut bolt and washer suitable for distribution transformer of any type and of size upto 200 KVA complete, all as specified and as directed.

M&L for replacement of HT bush rod made out of brass with nut bolt and washer suitable for distribution transformer of any type and capacity 250 KVA to 630 KVA complete, all as specified and as directed.

M&L for replacement of LT bush rod made out of brass with nut bolt, rubber packing and washer suitable for distribution transformer of any type and of size upto 200 KVA complete, all as specified and as directed.

M&L for replacement of LT bush rod made out of brass with nut bolt, rubber packing and washer suitable for distribution transformer of any type and capacity 250 KVA to 630 KVA complete, all as specified and as directed.

M&L for transformer oil for topping up or for replacement in Transformers / Servo voltage stabilizer complete all as specified and as directed. Note: Oil shall be in company sealed barrel having BDV not less than 40KV and Transformer oil topping up or replacement should be done on existing installation place on same days)

Material and labour cleaning sprarked/old transformer oil and all other foreign materials from external surface of transformer of capacity 63 KVA to 315 KVA and preparing the surface to paint the transformer body one coat of synthetic enamel while paint, including writing MES No & SM No withsmooth gray paint on back base complete all as directed by Engineer –in-Charge including replacement of outlived silica gel with new silica gel ‘A’ grade complete for transformer of capacity 50 KVA to 315 KVA. Note: Transformer oil filteration & dehyration by Ultra High Vaccum double stage machine should be done on existing installation place on same days and report of the same be obtained from the vendor).

Material and labour cleaning sprarked/old transformer oil and all other foreign materials from external surface of transformer of capacity 350 KVA to 750 KVA and preparing the surface to paint the transformer body one coat of synthetic enamel while paint, including writing MES No & SM No withsmooth gray paint on back base complete all as directed by Engineer –in-Charge including replacement of outlived silica gel with new silica gel ‘A’ grade complete for transformer of capacity 350 KVA to 750 KVA. Note: Transformer oil filteration & dehyration by Ultra High Vaccum double stage machine should be done on existing installation place on same days and report of the same be obtained from the vendor).

M&L for GI strip of size 32x6mm as earth continuity conductor burried in ground or drawn in pipe or fixed to wall on saddle.

M&L for fixing GI funnel complete with wire mesh for earthing water pipe complete all as specified and directed.

M&L for pit cover of size 300X300X40mm thick of RCC M-15 (Nominal mix) using 20mm graded stone aggregate with MS TMT reinforcement bar of 8mm dia @ 150mm centre to centre both ways, MS handle 10mm dia made to shape complete all as specified and as directed.

Disconnecting HT/LT cable/ busbar and earthing connetions of Servo voltage stabilizer of capacity 400 KVA, 3 phase from floor with the help of Crane to carry out overhaulling of servo voltage stabilizer comprising of the following:- (i) Draining out oil from chamber. (ii) Opening top cover, disconnecting winding connectio from bushing and taking out carefully core assembly complete with winding. (iii) Checking compactness of core & tighening the same where required. (iv) Chemical washing of winding to remove dirt, dust & carbon particles. (v) Cleaning of oil tank to remove oil sludge followed by painting of inner surface to tank with zinc chromate base paint. (vi) Refixing of core & winding assembly and making connection with HT/LT bushing. (vii) Replacement of worn out gaskets & nut/ bolts. (viii) Refilling of oil duly filtered/ dehydrated/ fresh oil( to be measured & paid separately under respective items). (Note: Overhauling of Servo voltage Stabilizer should be done on existing installation place on same day).

All as per Item No 29 here-in-before above but capacity 100 KVA to 300 KVA complete all as specified and directed

All as per Item No 29 here-in-before above but capacity 25 KVA to 100 KVA complete all as specified and directed

Supply and install MC TRMS PCB suitable for voltage stablizer of capacity 25 KVA to 400 KVA complete all as specified and directed.

Supply and install Contactor 100 Amp, suitable for 25 to 100 KVA voltage stablizer 3 Phase complete all as specified and directed.

Supply and install 3Kg motor sync suitable for upto 100 KVA voltage stablizer complete all as specified and directed.

Supply and install RC suitable for 25 KVA to 400 KVA voltage stablizer complete all as specified and directed

Supply and install Carbon bush suitable for 25 KVA to 400 KVA voltage stablizer complete all as specified and directed

Supply and install closer sheet suitable for 25 KVA to 400 KVA voltage stablizer as per existing size complete all as specified and directed

Supply and install 20kg motor sync suitable for 400 KVA Voltage Stablizer complete all as specified and directed

Supply and install of Carbon roller assy suitable for 25 KVA to 400 KVA Voltage stablizer complete all as specified and directed

Supply and install of Tag & Tail assy as per sample suitable for 25 KVA to 400 KVA Voltage stablizer complete all as specified and directed

Supply and install of PCB Relay (1003) suitable for 30 KVA to 400 KVA Voltage stablizer complete all as specified and directed

Supply and install of flip flop suitable for 25 KVA to 400 KVA voltage stablizer as per existing sample complete all as specified and directed

Supply and install of Time delay relay suitable for 25 KVA to 400 KVA Voltage stablizer as per existing sample complete all as specified and directed

Supply and install of limit switch (B4C) suitable for 25 KVA to 400 KVA Voltage stablizer complete all as specified and directed

Supply and install of power contractor suitable for 25 to 400 KVA as per existing sample complete all as specified and directed

Supply and install of Aux contractor 4 Nos + 4NC 44W, 230V AC complete suitable for 30 to 400 KVA voltage stablizer complete all as specified and directed by Engr-in-charge.

Supply and install of Aux contractor 6 Nos +2NC 62W, 110V AC complete suitable for 30 to 400 KVA voltage stablizer complete all as specified and directed by Engr-in-Charge. Note: Contractor should be replace the accessories of voltage stabilizer item No 31 to 48 by the authorised service Engineer only.

M&L for post and struts in fancing including cutting tops to shape airected drilling holes notching for wire etc. flat iron filets (for seccuring wire mesh etc.) including all necessary drilling bolting or riveting etc. and similar work confirming to Fe-290 Gde E-165 ramed work in repair such as grills granting etc with ends of bass shouldered and or riveted, or forged into spikes, framed guard bars, barred iron doors, ladders, framed balusters wald ways, railig, frame work of water tanks and similar wortk confirming to Fe-290 Gde E-165 complete all as specified and directed by Engr-in-Charge.

M&L for mild steel tie bars with screwed ends, nuts, washers and mild steel plates for walls, chimeny, roofs, arches etc. king rods and straining bolts confirming to FE-290 Gde E-165 complete all as specified and directed by Engr-in-Charge.

M&L in of Chain fencing with 4mm dia galvanised steel wire, 150x100mm mesh, made up into mattresses or cages, lapped, wired and laid in position, including closing after filling etc all as specified and directed by Engr-in-Charge.

M&L for excavation in post holes or similar holes each not exc 0.5 cum, getting out, retruning filling in and ramming earth or brocken rubble mixed with earth around, in layers not exceeding 25 cm ll as specified and directed by Engr-in-Charge.

M&L for Removing excavated material (soil) to a distance not exceeding 50 mtr and depositing where directed at a level not exceeding 1.5 mtr above the starting point complete all as specified and directed.

M&L for Plain cement concrete, 1:2:4 type B-2 (using 40 mm graded stone aggregates) as in foundation, filling, mass concrete and copings and the like including necessary form work complete all as specified and directed.

M & L for Earthing complete with galvanised steel earth plate electrode 60x60cmx 6.3mm thick, buried directly in ground (earth pit not less than 2.25 metres deep below ground level) with top edge of the plate not less than 1.5 metres below normal ground level, connected to galvanised iron strip 32x6 mm by means of bolts, nuts, check nuts and washers of galvanised iron or steel including PCC (concrete chamber) shall be PCC 1:3:6 type C-1 using 20mm graded stone aggregate,with fair finish internal surface of concrete chamber shall be given 15mm thick plaster in CM 1:4,funnel with wire gauge of (0.68) 8 mesh per liner inch,80mm thick RCC pit cover 320 mmx320 mm of RCC 1:2:4 type B-1 using 20 mm graded stone aggregate reinforced with XPM,JALLI and charcoal dust and common salt all as shown in electrical plate No.5 of MES SSR Part-1 and specified including provision of earth wire protected by 40 mm dia medium grade GI pipe and watering pipe shall be 20 mm bore medium graded GI pipe,and including all excavation and earth work & connecting the earthing to an earthing test point /transformer neutral/body/LT panel etc.and testing on completeion complete all as spec ified and directed. NOTE: The quoted rate of earthing shall be deemed to included cost of 7.5m long galvanised earth strip 32x6 mm and protection pipe of 40 mm bore medium graded ,GI light graded 20mm bore watering pipe

M&L for preparation fof surface of any description over 10 cm in width or girth and including fixing applying two coats of aluminium paint over a red oxide primer complete all as specified.

VEDA INFRASTRUCTURE

M/s Habib Electronics

M/S Khan Hussain & Co.