REPAIR AND MAINT OF HT / LT SWITCH GEARS, TRANSFORMERS AND CONNECTED ACCESSORIES AT TIBRI MIL STN UNDER GE GURDASPUR

Amount

Taking down the defective unserviceable transformer from existing site from pole and Sub Stn with the help of man power & chain pully block or by crane etc including disconnecting all electrical and mechanical connections from the site and carrying to workshop for repair and replacement of old burnt u/s items as well as winding etc including transporting of capacity 50 KVA to 100 KVA Transformer

All as per srl item No.1 here in before but 125 KVA to 250 KVA

All as per srl item No.1 here in before but 315 KVA to 400 KVA

All as per srl item No.1 here in before but 500 KVA to 750 KVA.

M&L for opening, dismantling the transformer 50 KVA to 100 KVA by lifting the top cover taking out the HT/LT core and draining out the transformer oil in clean barrel including cleaning the transformer chamber (body) inside and outside thoroughly with emery paper and cloth then checking then checking the winding and other worn-out parts such as HT/LT coils silicon stamping and other connected items as Tap changer, breather assembly etc and replacement of HT and LT coil winding with DPC enameled copper/aluminum wire/strip of adequate size, gauge and number of turn complete and connected to existing serviceable strip by jointing with soldering and reinsulation of cotton tape over strip including using insulating material like varnish to limb coil fire proof type and sleeves etc by drying and baking of insulating material in heating chamber in adequate temperature. Reassembling the transformer LT/HT connection complete. Testing of transformer after reassembly complete on No load at workshop and on load at site including painting to the transformer with super enameled paint all as specified and directed. Note: (i) HT/LT coils and other connected items shall be measured and paid separately. (ii) The repair of transformer should be carried out within 10 days after intimation to the contractor in writing including commissioning and testing the transformer for efficient functioning within seven days, Failing which a penalty of Rs. 1500/- per day will be levied on the contractor

All as per srl item No.5 here in before but 125 KVA to 250 KVA.

All as per srl item No.5 here in before but 300 KVA to 400 KVA.

All as per srl item No.5 here in before but 500 KVA to 750 KVA.

HT/LT coil winding with super enamelled copper wire/ strip of existing size & guage for winding the transformer HT/LT coils incl insulating materials all as specified and directed .

HT/LT coil winding with DPC or enamelled aluminium strip /wire of existing size & guage for winding the transformer coil HT/LT coils all as specified and directed .

Supply in replacement of HV bush Insulator complete with rod as per existing material & size and nut suitable for indoor/outdoor type transformer 50 KVA To 100 KVA .

All as per srl item No.11 here in before but 125 KVA to 250 KVA.

All as per srl item No.11 here in before but 300 KVA to 415 KVA.

All as per srl item No.11 here in before but 500 KVA to 750 KVA.

Supply and fix in replacement of LV bush Insulator complete with rod as per existing material & size and nut suitable for indoor/outdoor type transformer 50 KVA To 100 KVA makes witch gear Ltd.

All as per srl item No.15 here in before but 125 KVA to 250 KVA.

All as per srl item No.15 here in before but 300 KVA to 415 KVA.

All as per srl item No.15 here in before but 500 KVA to 750 KVA.

Supply and fix in replacement of tap changer for adjusting the voltage with brass parts as per sample of existing for indoor/ outdoor type transformer 50 KVA To 100 KVA all as specified and directed.

All as per srl item No.19 here in before but 125 KVA to 250 KVA.

All as per srl item No.19 here in before but 300 KVA to 415 KVA.

All as per srl item No.19 here in before but 500 KVA to 750 KVA.

Supply and fix in replacement of silica gel in breather assembly different capacity of transformer all as directed by Engineer in charge

Supply and fixing breather assembly complete of any type and capacity of transformer all as directed.

Supply and fixing of the temperature gauge of the different type and capacity of tranformer all as directed

Comprehensive maintenance of 66/11KV sub station equipment complete all as specified and directed and testing by Punjab State Power Corporation Limited (PSPCL) authorised personal:- (a) Transformer 66/11 KV 8 MVA - 01 No (b) Transformer 66/11KV 5 MVA - 01 No (c) 66 KV SF-6 based Breakers 02 Nos (d) VCBs / OCBs- 12 Nos and any other relevant HT equipment. Notes:- (a) Checking of 11 KV functioning of all the tripping system / relay displayed on the control relay panel - such as differential O/C, earth fault, metering circuits and all othe protection from transformer - oil temp, trip, OLTC trip, winding temp gauge trip, bucholz relay, inter trip etc calibration of all the relays complete for time observed with respect to time set primary injection of all the CTs (Periodicity of testing half yearly). Deposite the charges levied / charged by the PSPCL authority for calibration / checking the protection system of 66 KV system all as directed. (b) Greasing / oiling of all the moving parts (c) Operation / working of charging motor and limit switch (d) Any part / spares found defective during testing shall be repared / replaced for which payment shall be made separately against respective items of Sch 'A' (e) Test sheet shall be prepared as specified and made part of RARs & final Bill. (f) The equipments shall be tested twice, 1st test will be carried out within two months from the date of commencement of contract and second test after six months from the 1st test. Payment shall be released on receipt of results/reports from PSPCL

Supply and fixing, in replacement, current transformer CT ratio 600 / 1A, VA 2.5 , 50 Hz class SP, Short Circuit Current Capacity 21.0 KA for 3 sec complete all as specified and directed.

Supply and fixing, in replacement, Digital Amp meter 0-100 Amp complete all as specified and directed.

Supply and fixing in replacement Digital volt meter 0-500 Volts complete all as specified and directed.

Supply and fixing in replacement Digital volt meter 0-500 Volts working in 220 DC Volts complete all as specified and directed.

Supply and fixing in replacement Digital volt meter 0-66 KVolts complete all as specified and directed.

Supply and fixing in replacement Digital volt meter 0-11 KVolts complete all as specified and directed.

Supply and fixing in replacement of earth fault/over current relay set complete all as specified and directed.

Supply and fixing in replacement NDR relay of existing specifications complete all as specified and directed.

Supply and fixing of black HT bitumen tape 11 KV grade 16mm width of size 15 mtr in a roll all as specified and directed

Supply and fixing in replacement of PG clamp size 66 KV line Horizontal and Vertical type complete all as specified and directed.

Supply and fixing Male - female clamp suitable for 66 KV line complete all as specified and directed.

Repair of the gear assembly of SF6 breaker, by taking out the same and including transportation and replace the worn out parts / defective parts and commissioning the same including testing complete all as directed by Engineer-ini-charge

Supply and fixing of 66/11KV HT side bushes of 8 MVA transformer all as directed

Supply and fixing of 66/11KV LT side bushes of 8 MVA transformer all as directed

Supply and filling of SF-6 gas all as directed and specified

Supply and fixing of Cells of capacitor bank of capacity 137/150KVAR all as directed by Engineer in charge

Supply and fixing of barrel fuses of capacitor bank all as specified and directed

Supply and fixing of oil winding temp gauge of 8 MVA transformer all as directed by Engineer in charge

Supply and fixing of cable jointing kit 11 KV (earthed) grade cable indoor termination cold shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of 240 sqmm to 300 sqmm all as directed

Supply and fixing of coarse aggregate in 20mm graded in layers at Main Receiving Station and appliying of lime solution before laying of coarese aggregate all as directed by Engineer in charge

M&L for opening Dismantling the transformer of capacity 50 KVA to 500 KVA for repairing of transformer oil leakage from the top cover and HT/LT bushes, by lifting the top cover and draining out the transformer oil in barral including cleaning the transformer chamber (body) inside and out side thoroughly with emery paper and cloth than checked the winding and other parts for smooth functioning and replacement of top cover and LT and HT bush gasket and reassenbling the transformer LT/HT connection with help of soldering..Testing of transformer after reassembly complete on No load and full load at site incl painting to the transformer with super enammed paint all as specified and directed. Note :- The job includes the cost of gasket set, LT / HT bushes, nuts, bolts, washers, cost of painting etc required for the complete job. Only transformer oil will be measured and paid separately.

Opening Dismantling the power transformer of capacity 5MVA and 8 MVA for repairing of transformer oil lekage from the top cover and HT/LT bushes, by lifting the top cover and draining out the transformer oil in barral including cleaning the transformer chamber (body) inside and out side throughly with emery paper and cloth than checked the winding and other parts for smooth functioning and replacement of top cover and LT and HT bush gasket and reassembling the transformer LT/HT connection with help of soldering..Testing of transformer after reassembly complete on No load and full load at site incl painting to the transformer with super enammed paint all as specified and directed. Note :- The job includes the cost of gasket set, LT / HT bushes, nuts, bolts, washers etc required for the complete job. Only transformer oil will be measured and paid separately.

Earthing complete with galvanized steel earth plate electrods of size 60cmx60cmx6mm thick burried directly in ground vertically(earth pit not less than 2.25 mtr deep below normal ground level) with top edge of the plate not less than 2.75 mtr below normal ground level connected to galvanized iron 32x6mm by means of bolts nuts check nuts and GI washers of Galvanised iron protected by steel pipe 15mm (light grade) all as shown in elecrrical plate No.5 of SSR Part-I and connecting to earthing test point (earth test point to be provided at 5 mtr distance from earth pit) and testing on completion including necessary excavation and earth work. The rate also include charcoal dust and comman salt in alternate layers 40 mm dia light grade GI pipe,funnel,wire mesh.concrete 1:3:6 type C-1 for pit and RCC pit cover. PCC pit shall be provided 50 cm away from earth pit and not on the earth pit itself. The extra cost of the watering pipe,bends,elbows shall be included in the unit rate.Note : RCC pit cover shall be precast of RCC 1:2:4type B-1 80mm thick reinforced with XPM weighing not less than 4 Kg/Sqm.

All as per item No 49 here in before but using galvanised iron strip of size 25 x 4mm

Supply and fixing earthing galvanised iron strip of size 32 x 6 mm all as dircted by Engineer in charge

M & L in replacement danger notice plate for HT pole of size 20 cm x 15cm of 1.6 mm thick mild steel sheet viterious enamaled white with letter figur and conventional skull and bones "DANGER" (English, Punjabi and Hindi) in signal red colour and fixed with MS clamps made of 25mm x 3mm MS flat Iron bolts nuts complete including two coat of aluminium paint over a coat of red oxide primer complete all as specified and directed.

Anti climbing device spikes type fabricated out of MS Bar (round square and flat) including nuts, bolts washer and welding in two halves made to shape to suit the cross section of the pole.

Surface dressing n.exc 15cm deep of soft/loose soil site clearance ground sub stn and E/M installation complete all as specified and directed.

M & L in replacement pin type insulator porcelain vetreous white brown or green including one galvanised metal steel spindle two galvanised iron washer and one galvanised iron nuts 150mm height and 150 mm dia 11000 volt grade all as specified and directed.

Supply and fixing in replacement disc type insulator porcelein vitreous 145 mm high and 255 mm dia ball and socket type white/brown or green single disc assemblely for 11000 volt grade complete all as specified and directed.

Dehydratin and filteration of transformer oil at site by using dehydration machine and fiteration to be carried out till the time the dielectric strength achieved to min 40 KV complete all as specified and directed. Note : The transformer dehydration machine shall be arrange/brought by contractor at site no extra amount paid to the contractor.

Material and labour for toping up of the transformer and new with T/Oil having dielectric strength not less than 40 KV. Make - Poweroil/Savita/Transol.

Material & labour painting to HT PCC pole with one coat of synthetic enamel paint upto1.5 meter length from the PCC coping with black and white strip of 30 cm each including one coat of aluminium paint to all MS fitting / work such as channels, angles, bracing of MS flat, nuts, bolts with washer, street light fitting brackets etc. and numbering of poles as per existing size & shape including removing and cleaning of old panted surface complete all as specified and directed.

Material & labour for preparation of old painted steel and iron surfaces and painting to 4 pole structure PCC poles of height 11 metre, any type (double swan / single swan) with two coats of synthetic enamel paint upto 1.5 m height above from ground level (in yellow and black strips of 30 cm wide each) and applying two coats of aluminium paint above 1.5 m height of poles and cross arms, bracing, clamps, chanels etc and writing pole number with black synthetic enamel paint complete all as specified and directed.

All as per Srl Item No 60.00 here-in-before but two poles structure

Material & labour for painting to panels & feeder pillar box, any sizes, installed at 66 KV Sub Stn with two coats of super enamelled paint of approved colour with spray painting machine including preparation of the surface complete all as specified and directed.

Material & labourfor painting to transformer rating 8 MVA and 5 MVA, out door type installed at 66 KV Sub Stn including mounting channels and connected accessories with two coats of super enamelled paint of approved colour spray painting machine including preparation of the surface complete all as specified and directed.

Material & labourfor painting to transformer rating 50KVA to 500 KVA, out door/indoor type installed at different Sub Stn including mounting channels and connected accessories with two coats of super enamelled paint of approved colour spray painting machine including preparation of the surface complete all as specified and directed.

Supply and fix, in replacement, maintenance free battery, 2 Volt 60 to 100 AH (as per sample/existing capacity) complete all as specified. Make:- Amron / Exide / Amco.

Supply and fixing of alluminium strip of 50mm x 12mm including bending and fixing at the terminals of transformer LT side whereever directeed for connectin the outgoing cables lugs of different sizes all as directed by Enginer-in-charge

Supply & fixing replacement brass nut bolts and washers off sizes as per samples for HT/LT side of transformers all as specified and directed

Repair & replacement of Current Transformer moulded in epoxy compound with dual ratio 30/15/5/5 Amps complite connection with Auto wire 2.5 sqmm including beading as per existing in VCB at site all as per specified and directed by Engneer- in - Charge. (Note-: Circuit diagram will be produce after fixing the CT in VCB at site.

All as per Ser Item No 68 but ratio 20/10/5/5 Amps.

Disconnecting of HT connections & DC connection from existing busbar carefully and other parts carefully incl taking down the VCB trolly complete & disconnect the male/female contacts & clean the busbar with carbon tetra cholride liquid throughly busbar spout, trolly spout applying a one coat of 11 KV insulation quoting as per sample on busbar, spouts & other connected parts & reassembling the same re-connecting the HT & DC connection complete in functional order incl testing on existing load all as specified & directed.

Repair/replacementof 11 KV/110 volt 3 Phase 3 Limb 3 wire resin cast ,drawout type Potential transformer having 100 VA output at CL -0.5 Accuracy complete with HT & LT fuses riser connection, plug in chamber and Rail all as directed by Engineer in charge

Repair/replacementof Vacuum intruppter/vacuum bottle Type WL 33379 25 KA/ asper sample all as specified.

Suppy in replacement the existing U/S auto battery charger suitable for charging of 12V/24 V/36V batteries all as specified and directed.

supply in replacement Relay over current C&R Panel 66 KV Sub Station Make : ABB type : 1 cm 21 P ,W.D: 4 K- 421256,A : 0.5-2.0 ,f-50 Hz, operating 220 voltage,as per sample all specified & directed by Engr-in-charge.

Supply and fixing of protection cover for LT and HT side of the outdoor type transformer of any capacity, the protection cover should be made out of 3mm dia CRCA sheet in rectangular or square shape directed by engineer in charge of size not more than 1mtr x 1mtr and fixing the same cover by means of nuts, bolts, welding etc including applying one coat of red oxide and two coat of paint over the exposed surface of the box all as directed by Engineer in charge

M&L for crossarms in replacement , bracing, supports, clamps and brick plates, fabricated from staructural steel section including nut bolts washers including welding, bending , cold or hot drilling holes for bolts in any shape or size as indicated in drawings or as directed, including two coats of aluminium paint over a coat of red oxide all specified.

Supply and fixing of perforated type cable tray of size 300mm x 25mm for arrangement of the LT/HT cables and control cables in cable duct of the Main Receiving Station cable duct, disconnecting the control cable from existing position, fixing the cable trays and arrangement of the control cable on the tray all as directed by Engineer in charge

Supply and fixing of Mild steel Chequre plate of 5mm thick or over in thickness of Gde Fe 410 W A quality as directed by Engineer-in-charge for using as cable trench plate all as directed

Supply and fixing of XLPE insulated PVC Sheathed single core Aluminium unarmoured of 11000 Volts grade cable for using as a jumber in HT overhead line whereever required of size 95/120 sqmm all as directec by engineer in charge

JAI DURGA CONSTRUCTION CO