ml for disconnecting carefully electrical connection from both ht lt primary secondary sides of the transformer keeping them at safe side and taking the transformer out from the plinth with the help of crane indoor outdoor type of capacity 500 kva to 800 kva 11 kv 0433 kv step down any make for carrying out complete overhauling which shall comprise of the following- a ml for lifting transporting handling the transformer to workshop and opening top cover of the transformer by unscrewing nuts bolts washers etc including disconnecting core assembly from ht lt bushing and lifting the same gently and taking out from the shell container body of the transformer b ml for draining out transformer oil from the above said transformer in the suitable capacity of container drums and keeping it in safe custody for reuse c ml for cleaning the transformer body from inside removing deposited dirt sludge foreign particles etc from the bottom body of the transformer with appropriate chemical solution and drying up the shell from inside before refilling of the transformer oil d ml for cleaning and washing thoroughly core and windings of the transformer by hosing down with clean dry oil conforming to is 3351983 removing deposited dirt sludge foreign particles from the windings core thorough inspection of windings providing insulations to leads and terminals heating drying baking complete carefully and thoroughly inside the heating chamber at suitable temperature to obtain required value of insulation resistance etc all as specified and as directed by engr-in- charge contd, all as per item no 200 above but transformer voltage stabiliser indoor outdoor type of capacity up to 250 to 400 kva, all as per item no 200 above but transformer voltage stabiliser indoor outdoor type of capacity up to 100 to 200 kva, filtration dehydration of transformer oil of transformers frmus installed at various locations to achieve di-electric strength not less than 60 kv at 25mm gap as per relevant is with portable filtration plant testing of the oil for the di-electric strength before filtration and after filtration complete all as directed by the engineer-in-charge, supply and topping up of transformer oil with di-electric strength not less than 60 kv into the conservator tank body tank of the transformer ocb frmus etc at various locations complete all as directed by the engineer-in-charge, ml for rewinding of distribution htlt transformers of capacity 500 to 750 kva type by winding the defective coils with new copper wire as per is of same gauge and existing size together with new insulated materials bracings before placing in to the transformer and assembling the coil with new insulation and fitting the coils in the chamber testing and commissioning the transformer and recording the test results complete all as directed note ml for re-insulation of serviceable coils will be measured paid separately under relevant items, all as per item no 700 above but rewinding of distribution htlt transformers of capacity 100 to 400 kva type, ml for re-insulating windings of ht lt distribution transformers of capacity 100 to 750 kva by strip opening of ht lt coils ie primary secondary coils from core assembly safely unwinding the ht lt coils ie primary secondary coils complete removing the old defective insulation paper and replacing with new dpc insulation to the copper conductor re-varnishing of the windings with super varnish including heating drying backing complete carefully and thoroughly inside the heating chamber at suitable temperature to obtain required value of insulation resistance etc all as directed by engr-in- charge, disconnection of the distribution transformer of capacity 100 to 800 kva from ht and lt supply mains removing of bus duct and bus bar leakage arresting by draining out of oil after arrangement of necessary empty oil drums buckets etc dismantling of top cover and accessories dismantling of lt bushings by disconnecting leads jumpers from inside replacement of gaskets and oil seals and re fixing of the lt bushings making internal and external connections replacement of cover gasket and accessories reassembling of acessories and cover filling back of existing transformer oil complete and making cable connections and assessing for energising the transformer complete all as specified and as directed note i the rate quoted shall include cost of materials like gaskets and oil seals and labour etc ii bushing and bushing rods shall be measured and paid separately, disconnecting the htlt connections of transformer of capacity 100 to 800 kva ie bus duct cable bunch keeping all the cables out from the htlt sides physically checking the transformer for healthiness performing the transformer tests like hvlv meggar test ratio test magnetic balance test and short circuit tests for checking condition of transformer complete all as specified and as directed note- i all testing shall be done in presence of engr-in-charge or his accredited rep and test reports shall be signed by contractor and engr-in-charge and kept on record ii if the transformer found satisfactory then htlt connections shall be done by the contractor and has to charge the transformer iii if the transformer fails in these tests then the contractor has to shift the transformer for winding overhauling which will be measured and paid separately iv cost of winding overhauling if required shall be measured and paid separately, shifting the transformer of capacity 100 to 800 kva from existing site to another site within 3 km distance range by dismantling of ht and lt cable connections jumpers and busbars including lt busbar cable boxes and closing the transformers for loading into transporting vehicle with the help of crane transportation to another site unloading cable connections both ht and lt testing and commissioning complete all as specified and as directed, ml silica gel breather assembly complete suitable for 200 to 800 kva transformer as per existing with breather unit and silica gel including connecting with proper necessary gaskets of necessary including taking down existing unserviceable breather assembly complete all as specified and as directed, sf conservator tank assembly suitable for transformer of capacity 200 to 800 kva as per existing and including connecting properly with gaskets of necessary including taking down existing unserviceable conservator tank assembly complete all as specified and as directed, sf gun metal drain valves suitable for transformer of capacity 200 to 800 kva including taking down unserviceable gun metal drain valves complete all as specified and as directed, sf off load tap changer assembly suitable for transformer of capacity 400 to 800 kva as per existing with 7 tapping position including opening top cover conservator etc including taking down existing unserviceable off load tap changer complete all as specified and as directed, sf wti winding temperature indicator suitable for distribution transformer of capacity 400 to 800 kva as per existing including taking down existing unserviceable wti complete all as specified and as directed, s f lt bushings made out of porcelain along with bushing rod made out of brass copper as per existing and suitable for distribution transformer of capacity 500 to 800 kva including taking down existing unserviceable lt bushings and complete all as specified and as directed, s f ht bushings made out of porcelain along with bushing rod made out of brass copper as per existing and suitable for distribution transformer of capacity 500 to 800 kva including taking down existing unserviceable ht bushings and complete all as specified and as directed, sf oil gauge glass with gaskets as per existing suitable for distribution transformers of capacity 500 to 800 kva including including taking down existing unserviceable oil guage glass with gaskets complete all as specified and as directed, ml for preparation of old exposed painted surfaces of indoor outdoor type transformer of capacity 500 to 800 kva and painting the same with two coats of synthetic enamel paint including writing details of transformer on transformer plinth base with white synthetic enamel paint on black synthetic enamel paint back ground complete including one coat of white wash on exposed surface of transfomer plinth base complete all as specified and as directed note - colour code of paint shall be as decided by engr-in-charge, sf oti oil temperature indicator as per existing suitable for distribution transformers of capacity 500 to 800 kva including taking down existing unserviceable oti complete all as specified and as directed, ml drain plugs to valvesconservator caps of the sizes 34 1 15 valves and plugs as per existing suitable for distribution transformers of capacity 100 to 800 kva including taking down existing unserviceable drain plugs to valvesconservator caps complete all as specified and as directed, clearing away all bushes small plants grass vegetation saplings shrubs brushwood undergrowth roots upto root level including surface dressing nexc 15 cm deep around and surroundings areas of em installations ietwo pole four structures outdoor-substation yards pump house misc em installations etc and removing rubbish debris upto a distance of not less than 50 metres outside the periphery of the area under clearance complete all as directed, supply and laying hardcore of aggregate using 20mm graded crushed stone aggregate deposited spread and leveled in layers watered and rolled rammed to a true surface in sub-station yards complete all as specified and directed note - thickness of aggregate shall be measured after compaction, excavation in trenches not exc 15 m wide and not exc 15 m in depth for foundation etc or for shafts wells cesspits manholes pier holes etc n exc 10 sq m on plan and n exc 15 m in depth and getting out in soft loose soil complete all as specified and directed, returning filling in trenching with soil and including spreading levelling watering and well ramming in layers not exceeding 25 cm thick complete all as specified and as directed, removing of excavated surplus soil to a distance n exc 50 m and depositing where directed at a level n exc 15 m above the starting point complete all as specified and directed, ml sand cushioning with clean dry river sand in trenches for protection of ug cable or in sub-station yards including punning down complete all as specified and directed note- punned thickness of sand cushioning shall only measured and paid, supplying and laying un-reinforced precast concrete cable cover class hv type 1 flat of size 300mmx 180mm x 40mm cable covers as protection to cable in trenches including taking down existing unserviceable cover of any description complete all as specified and directed, sf 100 mm bore dia galvanised steel tubing light grade laid under road crossing for cable protection or fixed to poles walls or laid under floors including taking down existing un-serviceable pipe of any description complete all as specified and directed, ml cable jointing kit for 11 kv earthed grade 3 core xlpe armoured aluminium conductor cable of size 120 to 185 sqmm for outdoor end termination heat shrink type joint with jointing material and accessories including taking out unserviceable cable joint kit complete all as specified and directed, all as per item no 3200 above but for cable of size 240 to 300 sqmm, ml cable jointing kit for 11 kv earthed grade 3 core xlpe armoured aluminium conductor cable of size 120 sqmm to 185 sqmm for straight through heat shrink type joint with jointing material and accessories including taking out unserviceable cable joint kit complete all as specified and directed, all as per item no 3400 above but for cable of size 240 to 300 sqmm, supply laying xlpe insulated screened pvc bedded galvanised steel strip or wire armoured electric power cables heavy duty with aluminium conductor 11000 volts earthed grade cross sectional area 185 sqmm 3 core laid in trenches duct on pole on wall including taking out existing unserviceable cable complete all as specified and directed, all as per sl item no 3600 here in before but cable of size 240 sqmm x 3 core, ml for detecting ht 11kv ug cable faults located in any stretch depth with sophisticated cable fault locator consisting of microprocessor based pre-locator system hv surge generator fault pin point surge wave receiver cable identification instrument cable tracer for exact location of under ground cable routes complete all as directed note- the rate quoted deemed to be inclusive of arrangement of necessary fault locator equipment transportation of equipment charges for service engineer, ml for repair and servicing of ht 11 kv four pole structure by replacing aluminium pg clamps gi bolts and nuts pieces of acsr conductor with insulation sleeve ryb of any size as jumpers including lubricating the moving parts of ab switch and cleaning of all disc and pin insulators and applying silicon compound for prevention of arcing due to dust salt deposits over surfaces including preparation of surfaces applying zinc chromate primer on rusted surfaces and applying one coat of aluminum paint to the entire structure complete all as specified and as directed note rate quoted shall be inclusive of two coats of white wash on exposed concrete surfaces of structure, all as per sl item no 3900 but for two pole structure, servicing inspecting checking cleaning by using of blower lubrication greasing and carrying out preventive maintanance of rmu of capacity 11 kv 250 350 mva including calibrating the relay by conducting secondary injection tests and rmu in serviceable condition testing and commissioning all as specified and as directed by the engineer-in-charge notes unit rate quoted shall be deemed to include cost for necessary tp nuts bolts washers gasket insulation tape compound painting of rmu panels with approved colour including lettering details all as per exisitng, sf in repair self powered relay with oc sc ef protection having front usb port for laptop interface lcd display 10 event records 5 fault records min 2 setting group and keypad for setting parameters for the relay complete suitable for rmu of capacity 250350 mva all as specified and as directed, sf in repairs current transformer ratio - 100-501-1a accuracy class 10 burden - 25va for metering and class 10p10 25 va for protection complete all as specified and directed, sf in repairs cable termination bushing suitable for upto 1 run 3 core x 185 sq mm xlpe cable complete all as specified and directed, sf in repair cable termination cover boots push on type suitable for rmu of capacity 250350 mva complete all as specified and directed, sf in repair phase indicator lamps red yellow and blue suitable for rmu of capacity 250350 mva complete all as specified and directed, sf in repair 11kv 230v ac 1kva control transformer suitable for rmu of capacity 250350 mva complete all as specified and directed, sf in repair battery with and including battery charger 12ah ip-230v ac op - 24v dc suitable for rmu of capacity 250350 mva complete all as specified and directed, sf in repair spring charging motor suitable for rmu of capacity 250350 mva complete all as specified and directed, disconnection of 11 kv ht cables from 11 kv rmu upto 6 way and shifting transportation of 11 kv rmu to oem workshop to and fro for repair sf6 gas filling as required including connections after repair all as directed by engineer-in-charge, supply fixing testing and commissioning of 11 kv rmu sf6 switchgear assembly in repair all as directed by engineer-in-charge, supply fixing testing and commissioning of 11 kv rmu vacuum switchgear wiring including any type of buttons etc including connection with metering unit all as directed by engineer-in-charge, ml for sf6 gas refilling for 11 kv rmu upto 6 way by oem all as directed by engineer-in-charge, supply fixing testing and commissioning of 11 kv dual core dual ratio current transformer of ratio 200-1001-1a ci 10-5p10 all as directed by engineer-in-charge, supply fixing testing and commissioning of 11 kv resin cast insulators with copper studds of 630 amps copper conductor as per existing rmu all as directed by engineer-in-charge, ml for insulation coating painting inside rmu cable and vcb chamber of rmu all as directed by engineer-in-charge, supply fixing testing and commissioning of 11 kv idmt relay dual powered - self and aux powered type of siemens make model no siemens 7sr45 in repair all as directed by engineer-in-charge, supply fixing testing and commissioning of 11 kv vacuum interuppter suitable for 630 amps rmu as per existing vg1vg2 or eqvlt rmu all as directed by engineer-in-charge, sf in repair danger notice plate of size 25 x 20 cm 16mm thick mild steel sheet vitreous enameled white with letters figures and conventional skull and bones in signal red colour and fixed with ms clamps bolts and nuts of approved size for ht compete all as specified and as directed, sf in repair disc insulator porcelain vitreous brown 145 mm height 255 mm dia ball and socket type two in series assembly with cast aluminium 4 u bolt tension hardware and tension clamps for conductors working pressure ht 11 kv complete all as specified and as directed, sf in repair for pin insulator porcelain vitreous brown insulator including one galvanised mild steel spindle two galvanised iron washers and one galvanised iron nut for 11000 volts grade 150 mm dia 150 mm height complete all as specified and as directed, sf switches air break gang operated triple pole mechanically operated mounted on insulator and steel frame with operating mechanism worked from ground level for current rating upto 200 amps 11000 volts all as per clause no 1969 of ssr part-i 2009 including taking down existing unserviceable god complete all as specified and directed, sf in repair drop out lift off ht 11 kv 200 amp fuse link consisting of channel iron base having 2 nos 11 kv post type insulators in stack 2 stack per phase complete with fuse carrier of srbp tube with heavily tinned non ferrous metal parts and spring loaded phosphor bronze conforming to is 9385 complete all as specified and directed, ml earthing complete with galvanised steel earth plate electrode of size 600 x 600 x 6 mm thick buried directly in ground in vertical position earth pit not less than 225 m deep below the normal ground level with top edge of the earth plate not less than 15 m below normal ground level connected to earth lead of galvanised iron strip 32 x 6 mm by means of bolts nuts check nuts and washers of galvanised iron or steel all as shown in electrical plate no 3 connected to earthing test point including dismantling un-serviceable earthing complete all as specified and directed note- the unit rate shall also include for earth work in any type of soil pcc 136 type c1 chamber rcc 1153 type a1 cover slab 50 mm thick reinforced with 8 mm dia tmt bar 140 mm cc both ways 10 mm dia plain bar lifting handle embedded in cover slab main earthing lead from earth electrode to test point upto 75 m length 20 mm bore medium grade gi watering pipe 40 mm bore gi light grade earth lead protection pipe funnel wire mesh copper lugs charcoal and common salt in alternate layer etc, disconnect and taking out idmt numeric microprocessor based relay of any type make from 11 kv ht panel at p-5 sub stn nad trs-ii cleaning the contacts calibrating the relay by conducting secondary injection tests checking of current transformer rectification of defects in control wiring for proper tripping of circuit breakers through cts and relay and tripping coils adjustment setting to plug and time multiplier settings of the relay to achieve the discrimination in tripping tune synchronise upstream breaker relay settings re-installation of relay testing commissioning etc complete all as specified and as directed note- i arrangement of necessary testing calibration kits testing equipments tools etc shall be done by contractor and cost of the same shalll deemed to be included in the unit rate quoted ii testing tuning shall be carried out in the presence of representative of the accepting officer to the entire satisfaction of the rep of ge, taking down ht switch gear vacuum circuit breaker at p-5 sub stn trs-i trs-ii frcs sub stn at nad of capacity 11 kv 250350 mva comprising of following repairs overhauling servicing carrying out preventive maintenance and refixing the same after repairs overhauling a tripping off the breaker lowering the breaker with raisinglowering handle and pulling out the breaker complete from the panel along with the trolley for servicinginspectionoverhauling b servicinginspectingchecking of automatic safety shutter circuit spout and circuit spout connections for ryb phases and replacement of spares operation for serviceability and replacement of spares if required c dismantling and checking of cross bar assembly fixed contacts and current carrying parts of the breaker trolley insulated assembly and checking lamination with clamps epoxy spout isolator assembly etc d setting reassembling cleaning adjustment of fixed contacts main contact arcing contacts and chamber baffle pot assembly moving contact for proper setting of auxiliary contacts operating mechanism e servicinginspectingchecking of secondary socketsbusbar earthing plugsearthing sockets and replacement of spares if required f checking setting and adjustment of lowering and raising operation of the breaker trolley g decarbonising of busbar and connected items h lubrication and greasing of all moving parts of the trolley stopper bolt for proper operating and closing of shutter gear isolation resistance of trolley of with vacuum interrupter assembly contd, cts epoxy cast wound primary cts with minimum primary current 50 to 100 a double ratio double core protection core-5p10 metering core- class 10 25 ka for 1 sec of 15 va minimum burden, 15 sqmm flexible pvc stranded copper conductor cable unsheathed 1100 v grade for control wiring, 25 sqmm flexible pvc stranded copper conductor cable unsheathed 1100 v grade for control wiring, led indication lamps, shunt trip coil 110 v dc220 v dc, shunt trip coil 110 v dc220 v dc with assembly, breaker control switch, busbar spout, circuit spout, control circuit fuses 2 a to 63 a, hrc fuse pt ht side, vcb buffers, 110 volt dc closing coil assembly, epoxy body, vcb spouts, pole supporting assembly, spring charging motor, bus bar support insulator for vcb panel, vacuum interrupter bottle vg2, ml for replacement of damaged space heater including thermostat in ht vcb 11kv with new one suitable to operate on 110 volts dc supply complete with necessary wiring and control cable with toggle switch and all as directed by engineer-in-charge, ml for applying silicone high voltage insulator coating si-coat 570 rtv solution using electric airless sprayer to the inside surface of cable chamber alongwith busbar chamber of 11 kv indoor vcb panel including all disconnection re-connection of cables etc complete all as specified and directed by engr-in-charge, supply install testing and commissioning of mi-com feeder protection and control relay kw kva pf hz kwh 12 di 10 do one front rj45 port one rear rs485 port for modbus protocol draw out type with ct shorting feature small lcd display feature including taking down old relay of any description complete all as specified and as directed, sf in repair lightning arresters expulsion type complete with all fittings station class discharge capacity 65 kamp suitable for 11 kv complete all as specified and directed
AI summaryBid / No Bid DecisionGenerate annexuresDraft Full Bid
servicing calibration and complete overhauling of 33 kv ht breaker vacuum type sf6 gas operated breaker of 1600 amp rating outdoor type mounted in 33 kv switch yard of existing make ie crompton greaves typemodecapacity by taking out 33 kv trolley from ht panel after switching off electric supply checking of all mechanical electrical control system for proper functioning eg spring charge system triping system remote operation indication system upward-downwardin-out movement of ht 33 kv breaker trolley etc including diassembling of operating mechanism parts well cleaning with petrol and crc-226 and replacing unserviceable spare parts reassembling of parts including well cleaning the complete panel board main busbar decarbonizing all joints busbar cts pts spouts metal parts applying the proper lubrication greasing with ap-3 grease and making 33 kv breaker perfect operating in manual and electric mode and calibration checking of indoor control panel of 33 kv circuit breaker by chechingh of tripping system through idmt over current and earth fault relay at plug setting through primary current injection method to ensure proper function of trip coil control circuit etc during fault condition setting by expert from authorised engineer and agency of authorised company of circuit breaker including submission of calibration certificate complete all as specified and directed note- replacement of unsv spare parts required to make 33 kv circuit breaker functional will be measured and paid separately as supply fixing under respective items, sf tnc control switch complete all as specified and directed, sf panel heater thermostat switch complete all as specified and directed, sf closing coil complete all as specified and directed, sf auxillary relay for buchholz relay oil temp winding temp trip 24110v dc as per exsting complete all as specified and directed, sf master relay 24110v dc as per existing complete all as specified and directed, sf remote local switch as per exsting complete all as specified and directed, supply fixing connecting and testing spring charging motoruniversal motor for outdoor type 33 kv vcb operated on 230 volts ac dc with charging time less than 15 sec of approved rating complete all as specified and directed by eic make - delco or equivalent make as approved by age i, supply and fixing of 33 kv 50 hz single phase oil filled inductive potential transformer outdoor type ratio - 33sqrt3110sqrt3 two secondary windings voltage factor - 12 continuous 15 for 30 sec creepage 900 mm windding - 1 class-10 100 va suitable for 33 kv complete all as specified and directed by engr-in-charge, sf in replacement vaccum interrupter unit of 33 kv out door type circuit breaker complete with insulator and assembly 630 amps rating all including assembling testing and commissioning at site complete all as specified and directed, supply and fix in replacement auxilary relay 110-250 volt dc suitable for over current earth fault switch gear protection complete all as specified and directed make- alsthom model no- vaa21zg8502fm or technocommercialy equivalent as approved by agei, supply and fix in replacement of 33 kv numerical 3 phase over current 1 earth fault switchgear protection relay with instantaneous high set and programmable output to simplify feeder protection wiring etc complete and testing on completion make- crompton model no cgl14c or technocommercialy equivalent as approved by agei, supply and fixing testing commisioning of electro mechanical type under overvoltage protection relay for 11 kv of make- alstom or equivalent make including neccesary wiring complete all as specified and directed note all tp accesories for testing is carried out by contractor and no extra payment to be done for testing, supply and refilling of sf6 gas suitable for ht 33 kv breaker complete all as specified and directed, sf in replacement indication lamp led type red or yellow or green or blue colour suitable for 24 v to 100 volts dc as required at site complete all as specified and directed by eic, supply and fix in repair ampare meter ammeter with digital display suitabale for measuring 33 kv electrical parameters fixed in existing panel board etc complete all as specified and directed make- secureaeschneider, supply and fix in repair voltmeter with digital display suitabale for measuring 33 kv electrical parameters fixed in existing panel board etc complete all as specified and directed make- secureaeschneider, sf in repair of strip type heater 4060 watt approx 46 in length including replacement of burnt internal wiring thermostat cut out complete all as specified and directed, ml for repair testing of control cablewiring between 3311 kv vcbs and power transformers including replacement of unserviceable and damaged cablewire with suitalbe size with connector and thimble complete all as specified and directed note control cable made up of copper will be measured and paid separately, sf in replacement of us control cable with copper conductor pvc insulated sheathed armoured of size 15 sqmm 8 core complete all as specified and directed, sf in replacement of us control cable with copper conductor pvc insulated sheathed armoured of size 15 sqmm 4 core complete all as specified and directed, servicing and maintenance of floating cum boosttrickle battery charger bank cum tripping unit for properly working on input voltage 230 v ac and output voltage 24 v dc 120 amp including replacement of us indicating lamp and meter complete all as specified and directed, supply fixing in replacement of rechargeable sealed lead acid battery maintenance free of capacity 2 volt 100 ah for breaker panel charger to provide 24 v dc supply to 33 11 kv vcbs complete all as specified and directed, servicing calibration and complete overhauling of oltc on load tap changer of 3150 kva 33kv11kv transformer of make crompton greaves after switching off electric supply checking of all mechanical electrical control system for proper functioning eg spring charge system triping system remote operation indication system upward-downwardin-out movement of tap changing mechanism oil level and winding condition heater assembly gears movements etc including diassembling of operating mechanism parts well cleaning with petrol and crc-226 and replacing unserviceable spare parts reassembling of parts including well cleaning the complete decarbonizing all joints busbar cts pts spouts metal parts applying the proper lubrication greasing with ap-3 grease and making oltc perfect operating in manual and remote control mode and calibration checking of indoor control panel rtcc remote tap changer control panel by checking of tripping system and wiring of tap changer on remote and manual mode for increace of tap and decrease of tap positionsthrough avrautomatic voltage regulating relay relay and to ensure proper function of tap changing mechanism by expert from authorised engineer and agency of authorised company of circuit breakerand transformer including submission of calibration certificate complete all as specified and directed note- replacement of spare parts required to make 33 kv oltc of 3150 kva transformer in functional condition will be measured and paid separately under respective items, supply fixing and testing of automatic voltage regulating avr relay control assembly work on aux supply 90v-260v acdc and pt supply -110 volt complete of on load tap changer control rtcc remote tap changer control panel of 3150 kva 33kv11kv transformer of make cromton greaves complete all as specified and directed, servicing and maintenance of three phase induction motor of capacity 13 hp 415 volts 50 hz along with servicing of gear sets used in oltc of 3150 kva transformer alongwith servicing of mechanical movable parts and accessories of tap changing mechanism on manual and remote mode including checking of contactors fuses and thermostatswithces complete all as specified and as directed, sf in replacement pin type porcelain vitreous white brown or green insulator including one galvanised mild steel spindle two galvanised iron washers and one galvanised iron nut 150mm height 150mm dia for 33000 volts grade complete all as specified and directed, sf in replacement ht 33 kv post insulator including fixing arrangements complete all as specified and directed, ml for disc type insulator porcelain vitreous in single disc assy for tension with tension clamps for conductors working pressure 33000 volts of specified size complete all as specified and as directed, supply and install ht 33 kv630 amp ht bushing insulator including fixing arrangements for 315 mva transformer complete all as specified and directed, ml in replacement spindle for pin insulator suitable for 33000 volts grade complete all as specified and as directed by engr-in-charge, ml for servicing repairs to air-break switch isolator off load rotating type 33 kv 800 amps to 1250 amps capacity with proper alignment of isolator rotating blades with fixed contact jaws arcing horns applying petrolium jelly to moving mechanism cleaning and lubricating to isolator gear box assembly tightening all nuts bolts and clamps of jumpers etc repairing to isolator gear box assembly and making in proper serviceable condition for smooth functioning testing and commissioning on load complete all as specified and directed, supplying and fixing in repairs malemoving contact rotating blade of hde copper silver plated of air brake off load isolator switch rotating type 33 kv 1250800 amps capacity with all fixing nuts bolts etc complete all as specified and directed, supplying and fixing in repairs fixed contacts made of hde copper silver plated of air brake off load isolator switch rotating type 33 kv 1250800 amps capacity with all fixing nuts bolts etc complete all as specified and directed, supplying and fixing of terminal pad for air brake off load isolator switch rotating type 33 kv 1250800 amps capacity complete all as specified and directed, supply and install ht 33 kv drop out fuse with double stack channel type insulator including fixing arrangements all as specified and directed, supply and install ht 33 kv jaw clamp including fixing arrangements all as specified and directed, ml for lightining arrester expulsion type set of three as per existing makemodelcapacity to be fixed on existing structure complete with all fitting transmission class discharge capacity 65 kilo amps suitable for 33000 volts incl taking down old one etc complete as specified and directed, sf in replacement pg parallel groove clamps as per is- 5561 2018 for 33 kv11 kv acsr conductors complete all as specified and directed by eic, supply installation testing and commissioning in replacement of air- break off load line isolator switch rotating type manually gear drive mechanism operated highest system voltage 36 kv rated current 1250 amps triple pole with earthing device each pole consist of insulating pedestals 03 nos on galvanized steel base as per bss is incuding rotating blade of hde copper and fixed contacts of same material spring loaded arcing horns of adequate section to brake magnetizing current of transformer as directed with adequate 50mm dia gi operating pipe for operation from ground level and operating handle complete with both off and on positions complete all as specified and directed, disconnecting all the electric connections from ht and lt side incl earthing terminals from the transformers and taking down transformer from plinth by using cranehydra and opening of top cover for visual inpection for the tap changer and winding condition or as required at site and reinstall at existing location including testing of 3311 kv capacity 315 mva all as specified and directed by engineer-in-charge note- replacement of unsv spare parts required to make transformer functional shall be measured and paid seperate as sf under respective item of work, supply fixing of hv bushing with terminal rod complete all as specified and directed, supply fixing of lv bushing with terminal rod complete all as specified and directed, labour for 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, ml in repair replacement of prv pressure relief valve of outdoor transformer capacity 3150 kva 33kv11 kv as existing size model complete with its connected wiring and control all as specified directed by engr-in-charge, ml for servicing of buchholz relay of outdoor transformer capacity 3150 kva 33kv11 kv as existing size model complete by connected wiring oil levels lekage arresting and checking of oil level complete all as specified directed by engr-in-charge, sf of breather assembly transparent type filled with silica gel of fresh blue colour suitable for transformer of capacity up to 3150 kva complete all as specified and directed, supply fixing of circular oil level gauge indicating meter with complete float valve assembly for fixing on conservator tank of 3150 kva 33kv11 kvtransformer complete all as specified and as directed, dehydrationfiltration of transformer oil of transformer and oltc by centrifuging machine without disturbing electric supply by heatingfiltration of oil to achieve dielectric strength not less than 60 kv when measured at 25 mm gap for one minute and topping up to oil level mark at the conservator complete all as specified and directed by engineer-in-charge note- i the contractor shall make his own arrangement for centrifuging machine motorised break down kit and all tp and manpower required at site centrifuging and topping up etc and unit rate quoted shall be deemed to include for the same ii new transformer oil as required shall be measured and paid separatly under respective item as supply only iii the rate quoted by contractor shall deem to be included for three phase generator supply for dehydaration if required iv record of new insulating oil used for replacement and topping up oil in transformer shall be maintained duly signed by rep of contractor and age em, supply only new transformer oil as per is for topup with dielectric strength not less than 60 kv complete all as specified and directed by engineer - in - charge make- savitapower oilhp, ml for hiring of cable fault detector to detect exact position of fault for xlpe pvc ht cable 11000 33000 volts grade heavy duty aluminium conductor of any size complete all as specified and directed by engr-in-charge, ml for fixing in repair end joint kit for 11 kv earthed grade cable for indoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core xlpe armoured aluminium conductor cable of size 120 sqmm to 185 sqmm complete all as specified and testing after jointing complete note- item rate quoted including required tprefixing reconnection of cable in the panelpole cable joints complete all as specified and directed, supply jointing and testing in replacement of indoor type cable end termination joint heat shrinkable suitable for aluminium conductor cable of size 240 sqmm x 3 core to 300 sqmmx 3core 11000 volts grade complete all as specified and directed note- item rate quoted including required tprefixing reconnection of cable in the panelpole cable joints complete all as specified and directed make- densonraychem3mcabseal, sf in repairs cable jointing kit for 33 kv earthed grade cable for outdoor termination heat shrink type end joint complete with jointing material and accessories suitable for 3 core xlpe armoured aluminium conductor cable of size 300 sqmm complete all as specified and directed note- item rate quoted including required tprefixing reconnection of cable in the panelpole cable joints complete all as specified and directed make-densonraychem3mcabseal, ml in repairreplacement for earthing complete with using copper earth plate electrode 600 mmx 600 mmx315 mm thick buried directly in ground earth pit not less than 225 mtr deep below ground level with top edge of the earth plate not less than 150 m below ground level and earth plate surrounded with adequate quantity of charcoal dust mixed with salt to a packed thickness of 15 cm all round the plate using 20x3mm copper earth strip as earth lead moulded and riveted to earth plate at one end and connected to main equipment at switchcontrol board at another end gi earth lead incased in and including 50 mm dia gi light grade pipe from upper end of earth plate upto equipment with including 20 mm dia bore gi pipe light grade as water pipe from earth chamber to upper edge of the earth plate gi funnel with wire mesh fixed on water pipe and provision of pcc 124 type b1using 20 mm graded stone agg as in pits chamber and rcc pit cover 50 mm thick of precast rcc 124 type b-1 using 20 mm graded stone agg including necessary excavation and earth work in softloose soil all as shown in electric plate no 3 of ssr part-i and testing on completion complete all as specified and directed by engr-in-charge, ml in repairreplacement for earthing complete with using galvanized steel earth plate electrode 600 mmx 600 mmx 60 mm thick buried directly in ground earth pit not less than 225 mtr deep below ground level with top edge of the earth plate not less than 150 m below ground level and earth plate surrounded with adequate quantity of charcoal dust mixed with salt to a packed thickness of 15 cm all round the plate using 32x6 mm gi earth strip as earth lead moulded and riveted to earth plate at one end and connected to main equipment at switchcontrol board at another end gi earth lead incased in and including 50 mm dia gi light grade pipe from upper end of earth plate upto equipment with including 20 mm dia bore gi pipe light grade as water pipe from earth chamber to upper edge of the earth plate gi funnel with wire mesh fixed on water pipe and provision of pcc 124 type b1using 20 mm graded stone agg as in pits chamber and rcc pit cover 50 mm thick of precast rcc 124 type b-1 using 20 mm graded stone agg including necessary excavation and earth work in softloose soil all as shown in electric plate no 3 of ssr part-i and testing on completion complete all as specified and directed by engr-in-charge, sf in repairreplacement of earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduitpipe or fixed to poles or any other indicated situation for loop earthing etc as required by copper strip 20x3 mm all as specified and as directed, sf in repairreplacement of earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduitpipe or fixed to poles or any other indicated situation for loop earthing etc as required by galvanized iron strip 32x6mm complete all as specified and directed, labour for cutting trimming of tree branches up to 80 mm wide all around from the outer face of alignment of 33 kv ht over head electric line which are going touching or falling or acsr conductor poles or near by sub stns etc at any height from gl and making clearance 15m form conductor and removing to a distance up to 100 mtr where directed by engineer-in-charge note- i trimming of the branches on one sides of the conductor ii actual length of cutting will be measured iii the distance as motioned above will be maintained during contract current period same location subject to at least 6 months period between two trimminglopping iv measurement will be taken including all conductor as one only, mlfor preparatiom of old treated steel surface of any description of 33 kv yard and applying one coat of synthetic enamel paint complete all as specified, mlfor preparatiom of old treated pcc plastered surface of wall foundation of 33 kv yard and applying one coat of white wash complete all as specified, clearing away all grass vegetation saplings shrubs brush wood undergrowth roots and trees not exceeding 30 cm girth measured one metre above ground level and removing rubbish upto a distance of 50 metres outside the periphery of the area under clearance softloose soil and getting out including sprinkling anti vegitation chemical for complete area with spray machine complete all as specified directed, a line isolator 33 kv horizontal type - servicing of line isolator horizontal break outdoor type including cleaning of contact by ctc liquid proper oiling greasing on contacts moving rod handle for proper function of moveable rod for smooth on off position and checking the incoming and outgoing connection including replacement of terminal lugspg clamps with nut bolts etc and testing with following i meggar testing between phase to phase phase to earth shall be carried out, b ht potential transformer or 33 kv 110 volt outdoor type - cleaning of bushing and terminal of ht potential transformer 33 kv 110 volts outdoor type by ctc liquid and checking of oil level and oil dielectric strength bd test and proper connection checkingtightining of control wiring and testing with following - i meggar testing between phase to phase phase to earth, c ht 33 kv or 11 kv outdoorindoor type current transformer ct cleaning of bushing and terminal by ctc solution of ct 33 kv or 11 kv of any ratio and any type and checking of oil level and oil dielectric strength bdv test and for 11 kv checking of wiring circuits and decarbonising of cablebusbar jointsand proper connection checkingtightining of control wiring and testing with following i testing between phase to phase phase to earth to be carried out by external current injection kit, d 3311 kv vcbbreaker control relay panel 02 nos 33 kv panel - cleaning of control relay panel inside outside and checkingtightningrewiring if required cost of new wire is included in quoted rate all the control cable connection of ct pt vcb meters trivector meter transformer complete and testing with the following - i over current earth fault relay tripping by external current injecting kit on primarysecondary side ii buccholz relay alarm tripping testing iii oil temperature alarm tripping testing iv winding temperature alarm tripping testing v all selector switchesindication lamps such as localremoteonoff accept reset push button indication lamp checkedreplaced if required complete the cost of switchindication lamps will deemed to be included in quoted rate, etransformer 33 11 kv up to 315 mva - cleaning of power transformer 33 11 kv outdoor type externally including all accessories such as conservator tank marshaling box bushings bucholz relay radiator bushings oil level indicator complete and checking the incoming and outgoing terminal connection complete with the following testing - i transformer oil dielectric strength bd voltage test ii buccholz relay alarm trip testing iii oil temprature alarm trip testing iv winding temprature alarm trip testing v meggar testing between hv to earth vi meggar testing between lv to earth vii meggar testing between hv to lv viii earth resistance test for body earthing ix replacement all packing and viewing glass in marshilling box if required, f do fuse 33 kv cleaning of 33kv ht insulators checking the incoming outgoing joint connection replacing with new do fuse of approved rating including replacement of conductor clapms by replacing rusted nut bolts etc and testing with the following - i meggar testing between phase to phase phase to earth, ml for cement concrete for filling in foundations or making good of road pcc floor supports etc type b1 124 using 20 mm graded crushed stone aggregate including necessary form work and fair finishing of exposed surface of concrete facia finish with cement mortar complete all as directed, supply of fuse wire made up of tinned copper of rating 20 amp to 60 amp complete all as specified and directed note- fuse wire shall be taken on charge and record of consumption of same shall be maintained by ageje em, supply of ht insulation tapes roll isi marked for terminating high voltage 3311 kv cables for insulation sealing of connection of wire and cable for bus bar insulation transformer terminal insulation etc complete all as specified and directed, supply and fixing in replacement of danger notice plate 33000 volt and 11000 volt of 16mm thick ms sheet vitreous enamelled white with letters figuers and conventional skull and bones in signal red colour and fixed with ms clamps made out of flat iron 25x3 mm nuts-bolts of approved size for ht 25 x 20 cm and complete all as specified and directed, ml for hardcore of broken stone or boulders gauge of 40mm to 63 mm deposited spread and levelled in layers n exc 15cm thick around ht four poletwo pole structure and transformer area complete all as specified, repair to earth pit earth pit cover of 3311 kv switchyard by using pcc 124 and plastering in cm 13 complete including excavation returning filling and removal etc complete all as specified and directed, supply and laying in replacement of ht high voltage insulation mat size 2mx1m made of elastomeric polymers material having a high insulation registance thus imparting total saety to human being from any leakage current having high insulation registance of class a of size 30 mm thick and 1 m width suitale for 33 kv confirming to is-15652 2006 including pasting of mat with sr-998 by adding thinner as per requirement complete all as specified and directed
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