85922 E8 REPAIR OR REPLACEMENT OF VCBs, RMUs AND TRANSFORMERS AT DOMESTIC AREA AND SITE 1A AND 1B AT AF STN JODHPUR UNDER GE AF JODHPUR

Amount

M & L for replacement of 33KV jumpers by DOG conductor at pole by new one, with PG clamp including nuts and bolts / connector for fixing / tightening two conductor of equal or unequal size as directed by Engineer-in-charge.

M & L for replacement of 11KV jumpers by Weasel conductor at pole by new one, with PG clamp including nuts and bolts / connector for fixing / tightening two conductor of equal or unequal size as directed by Engineer-in-charge.

Material & labour for Repair,Maitainance & Servicing of 11KV HT VCB indoor/outdoor type complete including the following (a) Taking out 11KV HT VCB of 400/630/800 Amp rating trolley from HT Panel after switching off electric supply. Removing all mechanical/electrical/control system for proper functioning e.g. spring charge system, triping system, remote operation, indication system, upward-downward/in-out movement of HT VCB trolley,etc including opening the VCB trolly & checking the quality of insulating material,vaccum system complete. Replace defective parts, fixed/ moving contacts and blowing out dust and applying the proper lubrication/ greasing with AP-3 grease and reassembling the VCB including connection to HT panel and make the VCB functional to the entire satisfaction of and as directed by the Engineer-in-charge. Notes :- (i) The VCBs are installed at CPH, Tech area, 33 SU Site 1A & SITE 1B and VCBs are of different type of makes installed at site like Crompton Greaves, Alstom, Areva, Schneider,Siemens,C&S, etc.

Material & labour for Repair and maitainance of 33 KV VCB outdoor type complete including the following (a) 33KV HT VCB of 1250 Amp rating HT Panel after switching off electric supply. Removing all mechanical/electrical/control system for proper functioning e.g. spring charge system, triping system, remote operation, indication system of HT VCB ,etc complete.Refixing with faulty part replaced, fixed/ moving contact & blowing out dust and applying the proper lubrication/ greasing with AP-3 grease and reassembling the VCB including connection to HT panel & and make the VCB functional to the entire satisfaction of and as directed by the Engineer-in-charge. Notes :- (i) The VCBs are installed at CPH, VCBs are of different type of makes installed at site like Crompton Greaves, Alstom, Areva, Schneider,Siemens,C&S, etc.

Material & labour for Repair and maintanance of relay set (O/C and E/F relays) of any make for 11KV VCB/RMU panel, removing and refixing (the contacts NO+NC should be cleaned by CTC solution and adjust if electromagnetic) with faulty part replaced and calibrate the relays by relay testing kit & proper setting as per reqd load & time delay and fixing the relay set in HT panels complete all as specified and directed by Engr-in-charge. Notes :- (i) Testing shall be carried out by primary and secondry injection kit. (ii) Spare parts shall be measured and paid separately under supply only. (iii) The tripping system should be in accordance with the incomer of the affected feeder and setting should be maintained such that fault does not carry beyond the particular feeder due to overload, 3 phase fault, earth fault etc. (iv) The VCBs/RMUs are installed at CPH, Tech area, 33 SU Site 1A & SITE 1B and VCBs are of different type of makes installed at site like Crompton Greaves, Alstom,Schneider, Ashida, Siemens,L&T, C&S or any other of relays available on the site.

Material & labour for Repair and maintanance of 11 KV HT RMU indoor/outdoor type, EACH WAY of RMU 400/630/800 Amp rating from HT Panel after switching off electric supply. Removal of all the possible mechanical/electrical/control system for proper functioning e.g. spring charge system, triping system, indication system, including checking the quality of insulating material, complete & refixing with faulty part replaced blowing out dust and applying the proper lubrication/ greasing and reassembling the including motorised operation and connection to HT panel & filling of gas (if quantity is lesser than required) and make the RMU functional to the entire satisfaction and as directed by the Engineer-in-charge. Notes :- (i) The RMUs are installed at CPH, Tech area, 33 SU Site 1A & SITE 1B and VCBs are of different type of makes installed at site like Crompton Greaves, Alstom, Areva, Schneider,Siemens,C&S, etc. (ii) Spare parts if replaced & if Gas filled shall be measured and paid separately under supply only items.

Supply only SF6 gas suitable for HT33/11 KV RMU/VCB complete all as directed by Engineer-in-charge.

Supply only trip/closing coil suitable for HT, VCB/RMU, operating on 24/110 volt system and testing complete all as directed by Engineer-in-charge.

Supply only DC contactor operated on 110 / 24 volt system suitable for working of HT VCB/RMU complete all as directed by Engineer-in-charge.

Supply only Motor cut off limit switch sutable for HT 11 KV VCB/RMU complete all as directed by Engineer-in-charge.

Supply only Push Button element with one NO / NC complete all as directed by Engineer-in-charge.

Supply only Spring charging handle suitable of VCB/RMU charging as per sample all as specified and directed by Engineer-in-charge.

Supply only TNC switch with wiring suitable for 11 KV VCB complete all as directed by Engineer-in-charge.

Supply & testing of spring charging mechanism with motor for outdoor/indoor type, 11KV, VCB/RMU,operated on 230/110/24 volts DC,with charging time less than 15 sec of approved rating complete all as specified and directed by Engineer-in-charge.

Supply and fix in repair multifunction meter with digital display suitabale for measuring 11 KV electrical parameters( Voltage, Amp, power factor, frequcncy. Kwh, harmonics upto 31 level) complete all as specified and directed

Supply only Auxiliary switch 6 NO/6NC complete all as directed by Engineer-in-charge.

HT 33KVA OUTDOOR TYPE CT & PT Material & Labour for removal of bushing & terminals and cleaning CT/PT 33 KV by CTC solution on its insulators and teeths and checking the leakage if any from the CT and refixing the same after replacing the defective/faulty parts and checking the oil level and oil dielectric strength (BD test) and proper connection checking/tightening of control wiring and testing with the following :- (i) Meggar testing between phase to phase & phase to earth. (ii) Testing the terminal connection and its working for the calibration and tripping of the relay for the protection of HT 33KV line.Make it functional to the entire satisfaction of and as directed by Enginer-in-charge

Supply & fixing in replacement indication lamp (LED type) Red or Yellow or Green colour suitable for 110 volts AC / 110 volt DC / 30 volts DC (as required at site) complete all as specified and directed by Engineer-in-charge.

Supply and fix in replacement of Power Pack for 11 KV VCB/RMU suitable for incoming supply 220/110 volts and output 110/24 volts DC supply all as per existing with wiring complete all as directed by Engineer-in-charge. Note : - The contractor has to visit the site to check the existing system of 11 KV VCB/RMU for installation of power pack unit.

Material, labour & T&P for repair and maintenance of battery bank of output 110/24 Volt with following jobs:- (a) Checking the terminals of battery and cleaning it and pouring of distilled water into it. (b) Checking of terminal voltage output of individual battery and locating the fault if any (c) checking the 110V DC supply to the relay and auxiliary units installed in the VCB (d) Checking the battery charger for the charging of the battery bank Note:- The Battery to be replaced shall be measured separately under Supply only.

Testing/Servicing of Transfromer 33/11 KV, up to 5 MVA Cleaing of power transformer 33/11 KV, outdoor type externally included all accessories (such as conservator tank, marshaling box, bushings, bucholz relay radiator, bushing,oil level indicator ) complete and checking the incoming and outgoing termianl connection complete with the following testing. (i) Transformer oil dielectric strength (BD voltage) test (ii) Buccholz realy alarm and trip testing (iii) Oil temperator alarm & trip testing (iv) winding tempreture alarm & trip testing (v) Meggar testing between HV to earth (vi) Meggar testing betweeen LV to earth) (vii) meggar testing between HV to LV (viii) earth resistenace test of transformer neutral (ix) earth resistence test for body earthing

Taking down/Shifting carefully transformer any capacity, any make, any type from pole / plinth by dismantaling, dis-connecting HT & LT sides, earthings of transformer, supporting angles/crossarms, Shifting / transporting transformer carefully from the site to the other Location/workshop and refixing at site with all electrical connection to the entire satisfaction of Engineer-in-charge.

Dismantaling top cover of transformer of capacity upto 630 KVA , any make for repair / replacement of HT / LT bushing of transformer , or for replacement of top cover gasket or for inspection of transformer or for internal repairs of transformer all including draining transformer oil as required / upto the required level, re fitting the top cover of transformer after completion of the work including testing complete etc all as specified and directed. Note - spare parts will be measured and paid seperatelly

Repairs to the leaks of transformer from tap switch/ fins/ any pats of body, by replacing gasket / seal , or Repairs to the leaks of transformer body / fins, by welding / brazing etc complete all as specified and directed.

Taking down burnt HT/LT copper winding of transformer and rewinding the same with super enameled new copper wire and cotton wire of existing size specification including insulation of HT/LT winding insulation and insulating materials and changing of transformer oil complete all as per latest engineering practice and IS.and all as directed by Engineer-in-charge.

Taking down burnt HT/LT aluminium winding of transformer and cutting it into pieces in presence of EIC and rewinding the same with new super enameled copper wire and paper coil of existing size specification including insulation of HT/LT aluminium winding insulation and insulating materials complete all as per latest engineering practice and IS codes complete all as specified and directed by Engineer-in-charge.

M & L for replacement of defective silica gel breather with silica gel complete set upto 630KVA all as directed by Engineer-in-charge.

M & L for replacement of LT bushing of brass with neoprene rubber bush for Transformer upto 630KVA capacities all as directed by Engineer-in-charge.

M & L for replacement of HT bushing of brass of transformer of any capacity upto 630 KVA.all as directed by all as directed by Engineer-in-charge.

Suply only Silica gel complete all as specified and directed by all as directed by Engineer-in-charge.

Material, labour & T&P for Preparation of old painted iron surfaces of the transformer upto capacity 630 KVA, by cleaning / scrapping completely after that applying two coats of synthetic enamelled paint over a coat of primer on the transformer as per MES colour complete all as directed by all as directed by Engineer-in-charge. Note : Painting shall be carried out with Spray Gun using compressor.

Supply & filling of transformer oil in site for toping up the level of oil having dielectric strength between 55-65 KV during filling after initial filtration of any capacity complete all as specified and directed by all as directed by Engineer-in-charge.

M & L for dehydration /filtration of transformer oil in existing pole mounted/floor mounted transformer/Voltage stabilizer with the help of dehydration/filtration machine to achieve the dielectric strength of transformer oil not less than 50 KV all as directed by all as directed by Engineer-in-charge. Note:- (i) Dehydration/filtration machine will be arrange by the contractor and he will make his own arrangement and to carry the machine at various sub stations including vehicle and towing arrangement. The rate shall be inclusive of all above.

Dismantling of cross arms / bracing supports / clamps / back plates or any other structural steel sections including removing nuts bolts washers etc all as directed by Engineer-in-charge.

M & L for cross arms, bracing supports, clamps back plates angles fabricated from the structural steel section including bolts, nuts, washers, welding, bending, drilling holes for bolts, bent to any required shape of size as indicated or directed, inclusive of one rimer coat and two coats of aluminium paint after preparation of surfaces.

Dismantling & taking down, old, defective, weak insulator, any type, any size any shape (pin / shackle / loop ) all as directed by Engineer-in-charge.

S & F pin type insulator porcelain vitreous white / brown / green including one galvanised mild steel spindle, two galvanised iron washers, one galvanised iron nut, suitable for 11000 volts grade & of size 150 mm dia and 150mm height all as directed by Engineer-in-charge.

S & F pin type insulator porcelain vitreous white / brown / green including one galvanised mild steel spindle, two galvanised iron washers, one galvanised iron nut, suitable for 33000 volts grade all as directed by Engineer-in-charge.

Dismantling & taking down old, deteriorated, switch air break and supply and fixing switch air break gang operated triple pole mechanically operated horizontal/vertical type mounted on insulator & steel frame, with operating mechanism worked from ground level for current rating upto 200 Amps horizontal type suitable for 11000 V. grade all as directed by Engineer-in-charge.

Dismantling & taking down old, deteriorated, expulsion fuse assy and supply and fixing expulsion fuse single pole (drop out fuse) mounted on insulator & steel frame 100 Amps for 11000 V grade all as directed by Engineer-in-charge.

M&L for servicing and greasing of mechanical parts of existing 33/11KV horizontal/vertical type GOD including replacement of parts i.e Male/female contact, jumper ,operating mechanism, GOD rod etc all as directed by Engineer-in-charge.

Trimming/cutting the tree branches/ bushes around theHT over head line and making safe clearance up to 4.00 metre distance from line wire/panel all as directed by Engineer-in-Charge.

M & L of checking of HT 11/33KV cable of any size by means of HT Cable Fault Locator Machine by requisition for removal of HT cable faults all as directed by Engineer-in-charge.

Supply and fix in repair cable joint kit for 11 KV grade cable for indoor termination Heat shrinkable type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium cable of size 95 sqmm complete all as specified and directed by the Engineer - in - Charge.

Supply and fix in repair cable joint kit for 33 KV grade cable for outdoor termination Heat shrinkable type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium cable of size from 240 to 300 sqmm complete all as specified and directed by the Engineer - in - Charge. Make : M-Seal/CCI/Siemens/Denson/Birla-3M/Raychems/Y-Denson/ RPG/ Yamuna Gases & Chemicals/Mohindera & Mohindera.

Supply and fix in repair cable joint kit for 11 KV grade cable for outdoor termination Heat shrinkable type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium cable of size 95 sqmm complete all as specified and directed by the Engineer - in - Charge.

Supply and fix in repair cable joint kit for 11 KV grade cable for outdoor termination Heat shrinkable type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium cable of size from 120 to 185 sqmm complete all as specified and directed by the Engineer - in - Charge.

Supply and fix in repair Cable joining kit for 11 KV (Earthed) grade cable for straight through Heat shrink type joint complete with joining material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95 sqmm complete including digging if required all as specified and directed by the Engineer - in - Charge.

Supply and fix in repair Cable joining kit for 11 KV (Earthed) grade cable for straight through Heat shrink type joint complete with joining material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120sqmm to 185 sqmm complete including digging if required all as specified and directed by the Engineer - in - Charge.

Supply and fix in repair Cable joining kit for 33 KV (Earthed) grade cable for straight through Heat shrink type joint complete with joining material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 240sqmm to 300 sqmm complete including digging if required all as specified and directed by the Engineer - in - Charge.

Taking out old HT U/S cable of any size and any type all as directed by Engineer-in-charge.

Supply and fix in trench/wall / pole XLPE insulated PVC sheated armoured heavy duty HT electric cable with aluminium stranded conductor 11000 volt grade of sizes 95 Sqmm 3 Core complete all as specified and directed.

Supply and fix in trench/wall / pole XLPE insulated PVC sheated armoured heavy duty HT electric cable with aluminium stranded conductor 33000 volt grade of sizes 300 Sqmm 3 Core complete all as specified and directed.

Excavation in trenches not exceeding 1.5 m wide and not exceeding 1.5 m in depth for foundation etc or for laying of cables, errection of poles, struts/stays etc not exceeding 10 sqm on plan and getting out in soft / loose soil.

Returning filling in including spreading leveling watering and well ramming in layers not exceeding 25 cm in soft / loose soil.

Removing excavated materials to a distance not exceeding 50 m and depositing where directed, at a level not exceeding 1.5 m above the starting point in soils.

M&L for Sand cusioning for cable with TIBBA sand & punning to provide a required cover.

Laying only stone slab retrieved from excavation for cable complete all as specified and directed by the Engineer - in - Charge.

M&Lin replacement of ACSR conductor for 33KV or 11KV overhead line complete all as specified and directed by the Engineer - in - Charge.

Surface cleaning/site clearance n exc 15 cm in depth in Sub stations area, trenches,sub station rooms, two pole/ four pole structure surroundings to make a over all presentable condition all as directed by Engineer-in-charge.

M&L for manual Horizontal Boring of holes under road, pavement, hard standing etc for passing of cable including GI tubing light grade 100 mm dia for cable protection all as directed by Engineer-in-charge.

Supply and Fix in replacement of Prestressed concrete pole, 11.0 metres long, 152mm x 152mm at top and 152mm x 260mm at bottom class 9 including excavation, filling of foundation,pedestal for pole etc all as directed by Engineer-in-charge.

.Supply and lay stone aggregate of size 40mm graded layed on ground of yard/ two/four pole structure complete all as specified and directed.

M&L in repair of Earthing complete with copper earth plate electrode, 60x60cmx 3.15mm 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 copper strip of 20x 3 mm by means of bolts, nuts, check nuts and washers of galvanised iron or steel all as shown in electrical plate No. 5 connected to earthing test point all as specified or indicated including testing on completion all as directed by Engineer-in-charge.

Material & labour for Painting of all 2 pole/ 4 pole structure according to MES colour coding such as pole, structures,angle, GO DO etc at Swicthyard complete all as directed by Engineer-in-charge.

Material & labour for Repair and maintanance of relay set (O/C and E/F relays) of any make for 33KV VCB panel, removing and refixing (the contacts NO+NC should be cleaned by CTC solution and adjust if electromagnetic) with faulty part replaced and calibrate the relays by relay testing kit & proper setting as per reqd load & time delay and fixing the relay set in HT panels complete all as directed by Engineer-in-charge. Notes :- (i) Testing shall be carried out by primary and secondry injection kit. (ii) Spare parts shall be measured and paid separately under supply only. (iii) The tripping system should be in accordance with the incomer of the affected feeder and setting should be maintained such that fault does not carry beyond the particular feeder due to overload, 3 phase fault, earth fault etc. (iv) The VCBs/RMUs are installed at CPH, Tech area, 33 SU Site 1A & SITE 1B and VCBs are of different type of makes installed at site like Crompton Greaves, Alstom,Schneider, Ashida, Siemens,L&T, C&S or any other of relays available on the site.

Material & labour for Repair,Manitenance of 11KV HT Capacitor bank outdoor/Indoor type complete including the following (a) Checking the serviceability by Meggaring of each capacitor unit of any capacity.(b) Replace defective parts and blowing out dust and applying the proper lubrication/ greasing with AP-3 grease including connection to HT panel and make the capacitor bank functional to the entire satisfaction of Engineer-in-charge. .

Material & labour for Repair,Maintenance of 11KV HT Potential Transformer complete including the following (a) Checking the serviceability by Meggaring of each PT unit of any capacity.(b) Replacement of defective parts i.e fuse of any capacity,connection wire etc and blowing out dust and applying the proper lubrication/ greasing with AP-3 grease including connection to HT panel and make the PT functional to the entire satisfaction of Engineer-in-charge. .

Supply, Installation, testing , Commissioning of battery bank 110 Volts DC-55Nos tubular maintenance free batteries 2Volts 100AH with necessary items required for connection of batteries including battery Stand all as specified and directed.

Supply, Installation, testing , Commissioning of battery bank 24 Volts DC-12 Nos tubular maintenance free batteries 2Volts 100AH with necessary items required for connection of batteries including battery Stand all as specified and directed.

Supply, installation, testing and calibration of relay 110/24V of Microprocessor based three phase relay system to overcurrent, one earth fault protection type for 11 KV breaker, setting range suitable for over current and earth fault with necessary wiring/fitting including dismantling of old IDMT or unserviceable relays.The setting of the relay should be in accordance with the incomer and setting should be maintained such that fault does not carry beyond the affected feeder in case of Overload,3 phase fault, earth fault etc complete all as specified and directed by the Engineer-in-Charge. Note :- The calibration of relay of Microprocessor based three phase relay system required to carried out at CPH. Make C&S model no. CSENex-I 150 in equivalent Schenider, Siemens. (ii) The calibration of relay of Microprocessor based three phase relay system to be carried out by OEM representative.

M&L for Bore Earthing in Soil by DTH machine, upto depth of 50 mtr below ground level using earth electrode 50mm dia GI pipe medium grade duly drilled hole of 12mm dia ,15cm C/C on both side of the pipe including lowering in bore well upto the depth of 49mtr and one mtr above the ground level . the pipe electrode should be filled around commercial salt charcoal dust,copper sulphate and magnesium phosphate of 30 cm layer each upto the full length of pipe. The borewell casing pipe should have 12 mtr of length 150mm dia 5.4mm thickness MS pipe for protection of bore well . Welding of GI strip 50x6 mm on earth electrode and upto 7.5 mtr from the bore well to test point gun metal and PCC foundation surrounding the bore well 60x60x30 cm all as directed by Engineer-in-charge.

Supply and fix in replacement of power factor improvement capacitor oil immersed three phase static 12 KV capacitor with manual control 50 KVAR complete will all insulation for terminals all as directed by Engineer-in-charge.

Supply and install 33 KV single phase outdoor oil cooled CT of ratio 100-50/5-5 Amp class 1.0-5P10 burden 15 VA insulation level 70/170 KV complete all as specified and directed.

Material & labour for two coat of Aluminium Painting MS angle of 5MVA Yard at CPH such as structures,angle, GO DO etc at Swicthyard complete all as directed by Engineer-in-charge.

Material & labour for two coat of Aluminium Painting MS angle of 1MVA Yard at CPH such as structures,angle, GO DO etc at Swicthyard complete all as directed by Engineer-in-charge.

LOKESH ELECTRICAL WORKS CONTRACTOR

Nvimal Engineers and Contractor

SANJOLI CONSTRUCTION COMPANY