Vendor Registration Form Part II

INDEXTENTATIVESCOPEOFWORK

S.No. AREA ANNEXURE1. O/HBoiler&Aux. A2. O/HCleaningCondenserbyHighPressureJet,retubing B3. ChemicalCleaning(Boiler,Condenser,otherHeat

Exchanger)C

4. ElectricalRepair&Installation D5. TurbovisoryandC&IJobs E6. O/HofallSteamTurbineExceptofKWUDesign F7. O/HofallSteamTurbineofKWUDesign G8. O/HofTurboGenerator H9. O/HofGasTurbineofSIEMENSdesign I10. Refractory&Thermalwoolpadinsulation&claddingof

boiler/pipingetc.J

11. Sprayinsulation/CeramicPadInsulationofTurbineCasing K12. O/HofHydroTurbine L13. O/HofHydroGenerator M14. NonDestructiveTesting(U.T.,Radiography,MPI,DPTand

HeatTreatment)N

15. ProvidingTechnicalManpowerforindependentsupervisionatsite

O

16. Fabrication/Repair/MachiningofthermalandHydroTurbineComponents

P

17. Rebabitting&RefurbishmentofBearings Q

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AnnexureA

BOILERANDAUXILIARIES

1. Overhauling and minor repair of pressure parts viz. water walls, economizers and superheaters,reheatersincludinghighpressurewelding.

2. Replacementofwaterwall,economizer,superheater,reheater,etc.3. Servicing/minorrepairing/replacementofhighpressurevalves.4. Overhauling/minorrepair/modificationofrotaryairheaters.5. Replacementoftubularairheaterlower,middleandupperblocks,retubing.6. Overhaulingoffans,pumps.7. Overhaulingofballmills/tubemills.8. Overhaulingofbowlmills/hammermills.9. Overhauling/minorrepairofrawcoalfeedersandvariators.10. Replacement/minorrepairofrawcoalfeedersrotaryandchaintypeandtheirvariators.11. Overhaulingofpulverizedcoalfeedersandvariators.12. Replacement/minorrepairofcoallinesstraightandbendportions.13. Turnikets,screwconveyorcoalchutes,RCbunkers,PCbunkers,etc.14. Replacementofoilandcoalburnernozzleboxes,connectingducts,tiltingmechanism,oilburnerandoil

system,etc.15. Overhauling/minorrepairofairducts,gatesanddampers.16. Minorrepair/overhaulingofmechanicalprecipitators.17. Overhauling/revampingofelectrostaticprecipitators(mechanical).18. Servicingofboilerdruminternals,gaugeglassesandconnectingvalves.19. Replacement/minor repair of high pressure line drains and air vents, various connecting pipes,main

steamline,feedwaterlineandallotherlines.20. Overhaulingofmuddrums,checking/replacementoforificeplates.21. Overhaulingofcontrolledcirculationpumpsandtheirmotors.22. Inspectionandminorrepairofallsupportsandhangersofpipes,ducts,etc.23. Alltypeofrefractory,insulationandcladdingworks.24. Varioustypesoffabricationworksincludingstainlesssteelfabrication.25. Radiography,heattreatment,etc.ofhighpressureweldingjointsandtheirNDT.26. Overhaulingofsootblowers.27. Minorrepair/replacementofboilercasing,structure,etc.28. Overhaulingofashhandlingsystem,slagconveyor,etc.

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AnnexureB

OVERHAULINGANDCLEANINGOFCONDENSERBYHIGHPRESSUREJET,RETUBING,ETC.

1. Erectionofscaffoldingandopeningofgates.2. Erectionandcommissioningoftemporaryhighpressurejetsystemincludingsupplyofallequipment.3. Cleaningofthecondensertubesbyhighpressurejet.4. Conductinghydraulictestandpluggingofleakingtubes.5. Dismantlingofscaffolding,temporarysystemandnormalizing.6. Condenserretubing:

Erectionofscaffoldinganddismantling. Removalofolddamagedtubes. Cleaningofholes. Insertionoftubes,cutting,expansionandflaring. Hydraulictesting. Normalisationofsystem.

AnnexureC

CHEMICALCLEANINGOFCONDENSERSANDBOILERS

1. Erectionofscaffolding/platforms.2. Preparationofthecondenserforchemicalcleaningandnormalizingafterwards.3. Erectionoftemporarysystem,includingsupplyofallequipmenti.e.pumps,pipelines,tank,etc.4. Arrangementofchemicals,ifrequired.5. Establishingatemporarytestingfacilityatsite.6. Establishingsystemanddisposalofwasteasperstatutoryrequirements.7. Normalisingofthesystem.8. Preparationoftheboilerforchemicalcleaningandnormalizingafterwards.Thismayincludeopening

ofdrumandremovalofinternals,fixingofplugsinsuperheater/safetyvalveandotheropeningsinthedrum,connectingtemporarysystemonthemainboilerafterremovalof internalsofECONRV,cuttingofhandholesinringheaders,etc.

9. Erectionoftemporarysystemincludingsupplyofallequipmentincludingpumps,pipelines,tank,etc.10. Arrangementofchemicals,ifrequired.11. Establishingatemporarytestingfacilityatsite.12. Establishingsystemanddisposalofwasteasperstatutoryrequirements.13. Normalisingofthesystem.

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AnnexureD

ELECTRICALREPAIRANDINSTALLATION

A. TransformerJobs:1. Dismantlingofterminalbushings.2. Removaloftankcover.3. Liftingofcorewindingassemblytofacilitateinspection/cleaning.4. FabricationofspecialT&Pforundertakingrepairs.5. Assistinfollowingactivitiesforrepairoftransformers:Unlacingandreplacementofcores,Replacement

ofdamagedcoilsbyspareones,Dismantlingandreassemblyofterminalgearassembly.6. Takingoutofcoreandwindingassembly.7. Dryoutbyvacuumpulling,inductionheating,oilcirculation.8. Assemblyofterminalbushings.9. Precommissionchecks,commissioning.B. RewindingofHT/LTmotorsincludinginsulationofcoils.C. Rewindingandrepairofpolecoilsofhydrogenerator includingreplacement/arrangementof insulation

items.D. Refurbishmentofpolecoilsofhydrogenerator.E. RewindingofTurboGeneratorStatorF. Testingofelectromechanicalrelays,solidstaterelays,etc.G. Stabilitytestofelectricalsystem.H. Wiringofprotectioncircuit.I. ServicingofMOCB,vacuumcircuitbreaker,ABCB,etc.J. Servicingofisolator.K. Hipottestingofcircuitbreakers.L. Servicingofbatterychargerincludingreplacementofbattery,wiringthereof.M. Powercablehipottesting.

AnnexureE

TURBOVISORYANDC&IJOBS

1. Removal/laying,dressing,glanding,ferrulingandterminationofPowerandControlCablesrequiredforHTandLTtransformers.

2. Erection/revampingofcontrolpanelsforsystemslikeexcitationsystemincludingAVR,furnacesafeguardsupervisory system (FSSS), turbine supervision system and removal of panels with mechanical workconnectedtothesystem.

3. Erection/testingoffieldinstruments.4. Overhauling/calibrationandtestingofturbovisoryinstruments.5. Mountingof control switches, relays, indicating lampassemblies,annunciation system, indicationand

recordinginstruments,etc.oncontrolpanel/controldesk.6. Calibrationoftheindicatingandrecordinginstruments.7. Precommissioningandcommissioningofthecontrolscheme.8. SCADA,Onlinevibrationmonitoringsystem,Onlineconditionmonitoringsystem.Essentialinstruments:

Digitaltongtester(ofgoodmakelikePhillipsMotwane) Digitalmultimeter(ofgoodmakelikePhillipsMotwane) Portablecalibrationsetupforfieldinstrumentsofpressure,etc.

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AnnexureF

OVERHAULINGOFSTEAMTURBINEOTHERTHANKWUDESIGN

1. Dismantlingandassemblyofcrossoverpipes.2. LooseningofstudsofpartingplaneofLPC,liftLPcylinder.3. Liftingofpedestalcoverandbarringgear.4. Heat looseningofHPandMPoutercoverpartingplanestuds/bolts, liftHPandMPoutercasing.

HeatlooseningofHPandMPinnercasingpartingplanestuds/bolts.5. LiftHPandMPinnercasinganduppercarriersofMPcylinders.6. Dismantle/testLPHeaters.7. DecoupleHP/MP,MP/LP,LP/GeneratorRotorsandcheckalignments.8. Liftbearingtopsandcheckclearancesandinterference.9. Checkrotorrunoutandjournalslopes.10. Checksteamflowpathclearancesandthrustfloat.11. LiftHP,MPandLProtors.12. Removeallbottomdiaphragms,liners,etc.13. Overturntopcasings.14. Cleanallcasingpartingplanesandcheckthermaldistortionofindividualcasingbyhandscrapper.15. Replacementofgland sealing finson rotors.The jobof rotor fin cutting is tobe carriedoutwith

safetyandproperprecautions.16. Rectifythermaldistortion,ifany,andensureperfectmatchingofallindividualcasingpartingplane.17. Cleanall turbineparts includingcasing, rotors,diaphragms,etc. (Sandblastingwillbecarriedout,

wherevernecessary).18. UTandDPTofbearingsincludinggeneratorbearings(1to7).19. Revisioning/reconditioning/colourmatchingofallsevenbearings,includingreplacement,wherever

required.20. Alignmentof rotorsand finalising thepositionofbearingsand slope checking includinggenerator

bearings.21. Assemblethrustbearingandcheck/adjustthrustfloat.22. Centeringofalldiaphragmsandotherinternals.23. Check/adjuststeamflowpathclearances,sealclearances,thermalclearances,etc.24. BoxupLPcasingandtightenfasteners.25. BoxupHPandMPinnercasingsandheattightenfasteners.26. AssembleLPheatersintheLPcasing.27. BoxupHPandMPoutercasingsandheattightenfasteners.28. Check final alignment and do necessary corrections, if needed. Couple rotors after reaming, if

requiredincludinggeneratorandLPcouplingandgeneratorbearings.29. OverhaulingofHPQC,IPQC,IVsandgoverningvalves,extractionNRVsincludingtheirservomotors.30. Check/adjustbearingoilclearancesandinterferences.31. RevisioningofMOPandgoverningsystem.32. Cleaningandoverhaulingofoilinjector.33. Overhaulingofturninggear.34. Settingallsevenbearingsforoilflushingandnormalisingthereaftertoputmachineonturninggear.35. Check/adjustgoverningcharacteristics.36. Steamrollingandcheckingoverspeedprotections.37. Trimbalancing,ifrequired.

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AnnexureG

OVERHAULINGOFSTEAMTURBINEOFKWUDESIGN

HPMODULEOVERHAUL1. Removal and disposal of thermal insulation fromHP turbine.Dismantling of steam inlet and exhaust

piping.Openingofbreechnuts.LiftingofHPmodulefrompedestalsandplacingitonstands.2. DismantlingofremovedHPmodule.LooseningofPPstuds.Cleaning/aluminablasting/sandblasting/wet

sandblastingofturbineinternals.Revisioningofrotorandcasing.3. Centering of barrel in outer casing and assembly of the complete casing. Replacement of keys, as

required.Maintainingaxialandradialclearances.Machiningoffins,ifrequired.4. Liftingthebarrelandplacingitinhorizontalposition,removaloflockingdevicesandsupportingtherotor

onfixture.Fittingofsealsandouterglands.ShiftingofHPmodulefromfixturetopedestals.5. Connectionofallpiping.Rollcheck,bumpcheck,horndroptestandconnection.HPMODULEREPLACEMENT1. Liftingofoldmodulefrompedestalsandplacingitonfixture.2. ShiftingofnewHPmoduletopedestalsafterremovingallpreservationcoatings/covers/capsoncasing

androtor.Removaloftransportationdeviceafterloadingtherotoronthebearings.3. Removalofemergencygovernorshaft from theoldmoduleand its fitting/centeringon rotorofnew

moduleincludinginsituservicingofbothoverspeedstrikers.4. Connectionofallpipingwithcasingtobecarriedoutincludinginsitudrillingoflocatingpinholesinthe

inletinsert.Horndroptest,rollcheckandbumpcheckofnewmoduletobecarriedoutbeforeandafterconnectionofpipingandcorrected.

IPMODULE1. RemovalofcompleteIPturbineinsulationanditsdisposal.Dismantlingofinlet,glandsealingsteamand

extractionlinesoftopcasingafterproperlysupportingthem,includingcutting,ifrequired.2. Dismantlingofexhauststeamlinesfromtopcasingandglands.Heatlooseningofjointboltsandliftingof

tophalfof IP innerandoutercasings.Measureaxial, radialandshaftsealclearancesand radial, facialrunoutofIPcouplings.RemovalofIProtorandIPinnercasing.

3. Cleaning/aluminablasting/sandblasting/wet sandblastingof IP turbine internals.Checkingofpartingplanegapsofinnerandoutercasingandrectifications.Replacementofglandfins,asreqd.

4. BoxupofIPinnerandoutercasings,rollcheck,bumpcheckandheattighteningofjointbolts.Boxupoffront,glandboxes.Assemblyofinlet,glandsteam,extractionlinesandexhauststeampipes.

LPMODULE1. RemovalofLPglandboxupperhalvesandcheckingof sealclearances.LooseningofLPcasingparting

plane bolts and lifting of outer casing. Removal of LP innerouter and innerinner casing top halves.CheckingandrectificationofaxialandradialclearancesofLPcasing/rotor.

2. LiftingofLProtorandplacementofrotoronstandsaftersupportingproperly.3. Checking for loosenessof ladesof LP rotorandDP testing,wherevernecessary.Rectificationof loose

blades, ifany. InspectionofLPTexpansionbellows,LPT inletpipe (LHS&RHS),bellowprotectionpipeweldingseamsandLPcasingtopedestalexpansionbellowsbyDPT.

4. Cleaning/aluminablasting/sandblasting/wet sandblastingofLP turbine internals.Checkpartingplanegapsandovalityofinnerinnerandinneroutercasingsandrectification.

5. Placementof LP rotorback inposition after cleaningwork.Boxupof LP innerinner and inneroutercasings, roll check and correction. Boxup of LP outer casing after complete inspection of condenserinternal (steam space). Setting of gland box clearances, key clearances and assembly of gland boxesincludingreplacementofsegments,ifrequiredandmakingofclearances.

BEARINGINSPECTION1. Removalofbearing1to7pedestalcoversandbearingT/Haftercheckingyokekeyclearances.Coupled

andfreerunoutchecksofallrotorsandcouplings.

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2. DecouplingofHP/MOP.OverhaulingofMOP.DPTandUTofMOPbearingsandreplacementofwornout/damagedparts,reassembly,realignmentandcoupling.

3. MeasurementofcatenaryofTGrotorsusingpot levelsandcorrections.RollcheckandbumpcheckofHP,IPandLPcasings.SwingcheckatHPfront.DecouplingofHPIPandIPLProtors,measuringalignmentof rotors. Inspection, NDT and revisioning of all TG bearings. Inspection and rectification of contactbetweentorusandsupport.Revisioningofthrustbearing,adjustmentofthrustfloat.

4. AlignmentofHP/IPandIP/LProtors.Couplingofrotorsincludingreaming/honingandmachiningofnewcouplingbolts.Rollcheck,bumpcheck,horndroptestandcenteringofHP,IPandLPcasings.Adjustmentofaxialandradialkeysandpackers,ifreqd,incl.machining,matchingandlubrication.

5. Resettingofallbearings,oilcatchersandpedestaloilguardrings,repair/replacementofsealingstripsasperrequirement.Dismantling,overhaulandadjustmentofoverspeedtripdeviceandthrustbearingtripdevice.Barringgearnozzleremoval,repair/replacementoffinsandreassembly.

6. BoxupofTGbearings1to7.Preparationforoilflushing,cleaningofoilfilters,basketstrainers,duplexfiltersandresettingofthrottlesoncompletionoftheflushing.

7. Assistanceinsteamrollingandsynchronizationandattendingtoanydefectsobservedduringthesame.Assistanceintrimbalancingofthemachine.

VALVESHP,IP,LPBYPASS,SPRAYVALVESANDSERVOMOTORS1. Removalanddismantlingofthevalvesandactuatorassemblyaftermeasuringvalvetravel.2. Cleaningand inspectionofvalves,valvestems,studs,bushesandpilotseat includingNDTandchecking

ofvalvestemsrunout.Rectification/replacementofcomponents,ifrequired.3. Inspectionofallsealingfacesatthevalvesets,backseat,sealingring,etc.andstopvalveservomotordisc

topandrectification,asnecessary.4. Inspectionofbackseatbushings,spacerrings,glandpackingsandservomotoroilsealrings.5. Assemblyofcompletevalves includingservomotorsandconnectionofallpiping.Checkingofvalvesfor

any leaksandproper functioning.Measurementofvalve stem lifts/travel/compression.Adjustmentofvalvesduringfinalsetting.

VALVESHPBYPASSANDSPRAYVALVESANDSERVOMOTORS1. Removeinsulation,cuttingofspraylineanddecouplingofthevalve.Dismantlingofthevalve.2. Checkconditionofthestrainer,valveconeandvalveseat.Repair/replacethewornout/damagedparts,

ifrequired.Lappingofseatinposition.Seatcutting,ifrequired.3. Assemble the valve back and weld the spray line. Root run to be TIG welded. Revisioning of

servomotors/actuators and servovalves of the HPBP valves and spray valves including pilot valves.Associatedoilpipingshallbetakenupforoilflushing.Couplingandcommissioningofthevalve.

MSANDHRHSTRAINERS1. Cuttingof strainerdrain lines,dismantlingofmain steamandHRH strainers, inspection/NDT,cleaning

andrectification,replacementofgasketsandreassembly,TIGweldingofstrainerdrainlines,rectificationafterradiography,ifrequired.

GOVERNINGANDLPBYPASSRACKS1. Revisioningofall thecomponents, feedbackassemblies, their inspectionandcleaning.Replacementof

components,ORings,oil sealsandotherparts, if required.Commissioningand resettingofGoverningandLPBypassRacksvisvisrespectivestopandcontrolvalves,CRHNRVs,waterinjectionvalves,etc.todesignvalues.

CONDENSATEEXTRACTIONPUMPSANDCIRCULATINGWATERPUMPS1. Complete dismantling of the pump including decoupling. Piping disconnection and recording of pre

dismantling float,etc.Cleaning, inspectionand revisioningofall components.Check runoutof shafts.Clearancecheckingofstagesleeveandcutlassrubberbearings.

2. Clearancecheckingofstagebushand restrictionbush.Repair/replacementof thewornout/damagedparts.Properlockingofwearrings,bearingbushes,etc.byscrews.Assemblyofthepumpandheadgear.Checking of axial float and centering. Assembly of the bearing housingwith bearings, oil filling afterflushingofthehousing.Boxingupofthepump.Assemblyofgland.Installationofthemotor,alignmentwithpump,couplingandtrialrunofthepump.

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AnnexureH

OVERHAULINGOFALLTURBOGENERATOR

1. Checkingcoupledrunoutandbearingyokeclearance.DecoupleandcheckLPGeneratoralignment.2. Removal of oil pipelines. Dismantling of hydrogen seals of both sides and checking of seal liners.

Replacementofsealliners,ifrequired.3. Removalofendshieldsandfanshieldsofbothsides.Removaloffanbladesofbothsides.4. Removalofbrushgearassemblyandbearingno.7.Reassemblyofbearingno.7andbrushgearincluding

alignmentwithsliprings.5. Threadingoutofgeneratorrotoraftercheckingairgap,magneticcentre&demagnetizationofrotor.6. Removalofhydrogencoolers,cleaningoftubesandconductinghydraulictest.Facematchingofcoolers

andwaterbox.Reassemblyofthehydrogencoolersincludingreplacementofgaskets.7. AssistanceincheckingofRTDsofstatorwinding/slot.ReplacementofRTDswhereverpossible.8. Replacementofgeneratorstatorbushingandgaskets, ifrequired.Asbestosfibrecementingofterminal

bushing,ifrequired.9. UT/DPtestingofbearingsandreplacement,ifrequired.10. Rotorpurge test,airtightnesstestandreplacementofwashersofallthe four innerandoutercurrent

carryingbolts.Removal/refittingoffanhub.Replacementofslipring,ifrequired.11. DPtestofrotorretainingrings.12. Inspection,checking,tightnessofcorebarnutsandtheirlocking.Checkingandremovaloftechnological

bolts,ifany.13. Checkingtightnessofoverhangbracketboltsandbusbarsupportbracketboltsandtheirlocking.14. CheckingconditionofTeflontubes,waterheaderandinsulatingboxcoverandreplacement,ifreqd.15. Inspectionofstatorwindingandmeasurementofradialdeflectionmovementofthestatorwedgesand

retightening,ifrequired.16. Hydraulictestingofstatorwinding.Attendingtofailureofminornaturenoticed.17. ELCIDtestonstatorcore.MinorrectificationandretestofELCID.18. Clearingofblockagesinstatorwindingbyreverseflowofwaterinwinding.19. PIvaluecheckinganditsimprovement,ifnecessary.20. Epoxyinjectionontheoverhangportionofthestatorwindingandsprayvarnishonstatorandrotor.21. Rotorthreadingin.InsertionofhydrogencoolersandfixingofUBends.22. MeasurementandrectificationofLPGeneratorcouplingfacialrunout.23. LPGenerator alignment and coupling including reaming/honing and machining of new bolts and

replacementofbolts,ifrequired.Checkingandcorrectionofcoupledrunout.24. Measurementoffinalairgapandmagneticcentreandcorrection,ifrequired.25. Mounting of fan blades and assembly of end shield, seal body, fan shields and seal body pipelines

includingreplacementofgasketsingasandoilsystemlinesconnectedtostatorbody.26. Checkingofauxiliaryshaftrunoutandcorrection,ifnecessary.27. Assemblyofbearings.Checkingofoilclearancesofbearingand settingofbearingpadandyokekeys.

Boxupofbearingpedestals5,6and7.28. RevisioningofDPRVA&Bandresttingofreliefvalvesofsealoilpumps.29. Preparationforoilflushing.30. Gastightnesstestofgeneratorafterfinalboxup.Thescopewillbe limitedto inspectionofendshield

joints,sealbodyjoints,hydrogencoolers,flangesandprechambersonly.31. Removalofbrushlessexciter,whereverprovided.32. Electricalchecking/testingofdiodes,fusesandreplacement,etc.33. Checkingofbearinginsulationandrectification,ifrequired.

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AnnexureI

OVERHAULINGOFSIEMENSDESIGNGASTURBINES

1. Compressor/turbinewashing.Mark and remove insulation. Spray/apply antiseize compoundonboltsandnuts.Openallmanholesandcheck forabnormalities.Disconnect fueloil/gaspipelines.Disconnectelectricalandinstrumentationequipment.Measurebacklashofturninggearandundoallblowoffpipes.Measureradialclearancesofturbineblades.

2. Removalof intermediate shaft cover/suction cone/inlet.Check coupled runoutofboth the couplings.Decouple turbine/intermediate shaft and intermediate shaft/generator, check alignment and conductbumpcheck.Providesupportsunderthecentrecasing.Takeoutallcentre/guidepins.

3. Removalofcombustionchambersafteropeningtheflangebolts.4. Grindoffexhaustcasingliners.Openboltsofcentreandexhaustcasingsandliftingoftophalves.5. Dismantle all piping connections and burners on both CCs. Take out all gas and oil valves. Conduct

pneumatictestingofallballvalves.OpeningofboltsofdomesofbothCCs.LiftofftopdomesandflametubesofbothCCs.Removediagonalswirlersand inspectfordamages. Inspectionofburner insertringsfordamageandremovalofthesame,ifrequired.

6. Inspectionoftilesandtileholdersofbothflametubes.Replacementofdamagedtiles/tileholders.7. Takeoutmixingchambersfromcombustionchambers,ifrequired.OpenKRingandliftofftophalf.8. Apply/spray antirust compound on all blade carriers. Provision of jack bolts for the blade carriers.

Openingofboltsof carriersand liftingof the tophalves. Liftoff stuffingboxand compressor/turbinebearings.Measurementofaxial/radialbladeclearancesofturbine/compressorstages.

9. Fixinnercasingwithclampstorotor.Lifttheturbinerotorandshifttoupendingdevice.10. Upendtherotorfromhorizontaltoverticalposition.Prepareplatformonallfoursides.11. Unclamp/relieverotor.Recorddeflectionoftierod.Dismantlerotorincludinginnercasing.12. Removetheintermediateshaft.Removetheturninggeardevicefromcompressorbearings.13. Removecentreguidesofthelowerhalfcarriersandtakeoutthelowerhalves.Dismantlingoftheturbine

stationary/rotorbladesofstages1/2.Dismantlingcompressordiaphragmsfromtopcarriers.14. NDTworksonbearings,tierod,compressorbladedrotordiscs,turbineblades,etc. includingsupplyof

DPtestkits,MPItestingkit,MPIfluidsandUTkits.15. Repair/reconditioningoftheinnercasing,mixingchambersandflametubes.16. Reconditioningandassemblyofturbine/compressorblades.17. Assemblyofrotor&tighteningoftherotortierod.Assemblyofcompressordiaphragmsincarriers.18. Overhaulofblowoffvalvesandoilpumps.Overhaulofturninggear/overspeedtrippingdevice.19. Insert lower halves of turbine/compressor blade carriers. Install turbine/compressor bearings after

checkingclearances.Inserttheintermediateshaftinposition.InsertKRingbottomhalfinposition.20. AssemblyofflametubeandtopdomesofbothCCs,assemblyofburnersandpipings.21. TurnrotorfromverticaltohorizontalpositionandshifttoTGhallandinsertrotorinposition.Makeinner

casingfreefromrotor.Preparebearingsforjackingoil.Turnrotorandgrindturbineblades.22. Bump check andmeasurement of axial/radial clearances. Boxup and assembly of the blade carriers.

Assemblyof KRing.Assemble the shaft glandbox and turbine bearings.Boxup and assemblyof thecentrecasing/exhaustcasing.Assemblethecombustionchamberstocentrecasing.

23. Measurementof radial clearances and centering.Alignmentof turbine, intermediate shaft, generatorrotors.Couplingofallrotorsincludingstretchingofboltsbyhydraulicdevice.

24. Assemblyofturninggear/overspeedtrippingdevice.Weldingofexhaustcasingliners.25. Fixingof the instrumentsandadjustmentofguidevanes.Fixingofair intakecasing, suctionconeand

intermediateshaftcover.Insertalllowercentreguides.26. Lubeoiltankcleaning/oilflushing.27. Fixingofblowoffvalves/pipes.Finalchecksandclosingofmanholes.28. Insulationoftheturbineincludingsupplyandapplication.29. Turninggearoperation/startup.

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AnnexureJ

REFRACTORY/THERMALWOOL/PADINSULATION&CLADDINGOFBOILER/PIPING

1. Refractorybricklining,plastering,insulationbricklining,etc.ofboiler.2. Thermalmineralwool/padinsulationwithproperaluminiumcladding.

AnnexureK

SPRAY/CERAMICPADINSULATIONOFTURBINECASING

1. Sodiumsilicatespray/calciumsilicate type thermal insulationofHP,MPandLPcylindersandvalvesas

perBHEL/Manufacturersspecifications.2. Thermalmineralwool/pad insulationwith proper aluminium cladding of transfer pipe, omega pipes,

crossoverpipesand2metrelengthofallotherpipelinesconnectedwithturbinebottomcylinders.3. Temperatureratingsoftransferandomegapipesis5350Candthatofcrossoverpipesis2500C.4. Ceramicpadinsulationofturbinecasingsasperspecifications.

AnnexureL&M

OVERHAULINGOFHYDROTURBINES(FRANCIS,KAPLAN,PELTON)ANDGENERATORSANDTHEIRAUXILIARIES

1. Insiturepairofunderwaterpartsinhydroturbinesinvolvingcomponentslikerunnerblades,runnerhub,

runnerchamber,drafttubecone,guidevanes,pivotring,topcover liner,shaftsealingsystem,etc.andepoxygroutingofdrafttubeandrunnerchamber.

2. Insiturepairofstatorwindinginhydrogenerators.3. Majoroverhauling/renovationofcompletehydrogeneratingsets includingturbineaswellasgenerator

and theirauxiliaries that shall involve thegeneralmaintenanceofalldismantled componentsbesidesrepair. Likely items earmarked for replacement are all rubber seals, Orings, all fasteners,top/middle/bottomguide vanebushes,guide vane cup seals,neoprene rubber seals,grease lubricantsystem,shearpins,shaftsleeve,looseinsulationmaterial,epoxypaints,etc.

4. Repairofoldturbinerunnerassembly.5. Repairofoldguidevanes.6. Overhaulingofgoverningsystem(bothelectricalandmechanicalcubicles).7. Overhaulingofexcitationsystem.

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AnnexureN

NDTANDHEATTREATMENT

1. RadiographyofHPweldingjointsoftubes/pipesupto400mm.2. StressRelievingofHPweldingjointsoftubes/pipesupto400mm.3. UT/DPT/MPIofvariouscomponentsandweldjoints.4. Thicknessmeasurement/surveyofboilerpressureparts,casingsofhydroturbines,etc.5. Preheating/stressrelievingofjoints/componentsusingresistance/inductionheatingwithrecorders.

AnnexureO

PROVIDINGTECHNICALMANPOWERFORINDEPENDENTSUPERVISIONATSITE

Providingtechnicalmanpowerforindependentsupervisionofsiteworkssuchas:1. Boiler:

a) AirPreheaterb) Valvessafetyandconventionalc) Wallblowersd) Pressurepartse) Millsf) Burners

2. Turbine:a) KWUDesignb) LMWDesignc) Industrial

3. Generator4. HydroTurbine5. HydroGenerator6. TransformerandBreaker7. Watertreatment8. EnergyAuditofPowerPlants

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AnnexureP

FABRICATION/REPAIR/MACHININGOFTHERMALANDHYDROMACHINECOMPONENTS

1. The parties interested to enroll for this area ofwork should have their own Machining facility (i.e.:Factory/Machineshop,tieupforcastingfacilitywithreputedfirminIndia/abroad)

2. Transportationofthecomponentsto&froworksofthesubcontractor/vendor.3. Transit insurance& insuranceduringperformanceofcontractattheworksforasumassuredthatshall

beindicatedbyBHELoncasetocasebasis.4. FABRICATION/REPAIR/MACHINING of various components of Steam Turbine ( Viz: Gland Body,

Diaphragm,Guidewheels,Labyrinth,Casingetc)asperdrawing/instructionofBHEL,Insitu/attheworksofthevendor.

5. FABRICATION/REPAIR/MACHININGofvariouscomponentsofSteamGenerator(Viz:Mills,Fans,Flanges,Labyrinth,Casingetc)asperdrawing/instructionofBHEL,Insitu/attheworksofthevendor.

6. Reverse engineering of the components wherever required based on OGA Drawing, actual physicalconfigurationorinstructionsofBHELoncasetocasebasis.

7. FABRICATION/REPAIR/MACHINING of Hydro Turbine Runners (Francis, Kaplan, Pelton wheel) of therating6.0MWandabove,ashighas150MW.

8. FABRICATION/REPAIR/MACHININGofHydroTurbineComponents(Viz:TopCover,Labyrinth,PivotRing,GuideVanes,Bushes,Bearingbody,SpiralCasing,MirrorDisc,ThrustBearingFramesetc)

9. FABRICATION/REPAIR/MACHININGofHydroTurbineshaftatvariouslocationsasperrequirement.10. Heattreatmentofthecomponentswhereverrequiredasperprocedure.11. CastingofBlades/Vanes andotherHydromachine componentsor tieup for the same with reputed

castingfirmsinIndia&abroad.12. Machining/Fabrication/Repair/Castingetcshouldbedoneaspertheaccuracyspecifiedinthedrawing/as

perdirectionofBHEL.13. Heattreatmentfacilityortieupforthesameshouldbeavailableattheirdisposal.14. ThepartiesshouldbeabletoperformHVOFcoatingofComponentsthroughtheirownfacilityorthrough

tieupwithreputedfirmsinthisarea.15. The interestedpartiesshouldhavetieupwiththirdparty inspection(Viz:M/sLloyd,RITES,DNV,BVQI

etc)sothattheirservicescouldrequisitionedasperrequirementofBHEL.The above scope is tentative, the interested parties should be capable of performing the Fabrication/MachiningandrepairholisticallytoanyextentforSteamandHydroturbineComponents.

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AnnexureQ

REBABBITTINGANDREFURBISHMENTOFBEARINGS

1. Transportationofbearingshellalongwithhousingto&frositetoworks.2. TestingoftheBearingShellafterdemetallization.3. RebabitingofbearingshellaspertechnicalSpecificationofBabbittmaterial.4. Machiningofthebearingtosuitthediameter.5. Ensurefollowingbeforemachiningofshell:

Partingplanematchingofbearingshell. Tightnessofbearingshellwithhousing. Redowellingofshell&bearinghousing. Radial&facialrunoutofassembly

6. DPTestingandUltrasonictestingoftherebabbittedBearingstolookforsurfacecracks,porosity,blowholes,lackofbonding,etc.andrectificationofthesameasperrequirement.TheNDTshallbecarriedoutinthepresenceofourexperts.

7. ReverseengineeringoftheentirebearingsbasedonOGAdrawingsandshaftdiameter.8. Completearrangementofbearingincludingmaterial(Babbittandhousingcasting)basedonreverse

engineeringdata/BHELSUPPLIEDDATAoncasetocasebasis.

TestcertificateofBabbittmaterialistobeprovidedbythesubcontractor.InspectionofthebearingwillbecarriedoutbyBHELengineer.

Thesubcontractorwillgive12monthswarrantyofrebabittedbearingfromdateofreceiptatsitetowardsmaterial&workmanship.

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LIST OF EXPECTED MAJOR T &P & IMTEs

1. TORQUE WRENCH OF VARIOUS SIZES FROM :5PSI TO 150PSI. 2. SPANNERS : 5MM TO 95 MM WITH RATCHET FACILITY

D-SHAPE SOCKETS RING-SHAPE

3. HAMMERS: 1.2 KG TO 5 KG. 4. MALLETS/NYLON HAMMERS/WOODEN HAMMERS 5. SCREW JACKS: UPTO100MT 6. HYD-JACKS: 5MT TO 50 MT WITH PUMPING UNITS. 7. WELDING GENERATORS: UP TO 320AMPS CAPACITY. 8. WELDING TRANSFORMERS WITH RECTIFIER UNITS. 9. INSULATED WELDING TORCH & GADGETS. 10. GQ-4 GRINDING MACHINE. 11. AG-7, AG-5 GRINDING MACHINE. 12. FF-2/FLEXIBLE GRINDER. 13. PISTOL GRINDERS. 14. ELECTRIC WINCH CAPACITY:5MT & 10MT. 15. HAND REAMERS : DIA UPTO :25.0 MM 16. TAPSETS: UP TO M20 THREADED HOLE. 17. HAND DRILL MACHINE: UPTO Dia:10.00MM 18. MAGNETIC BASE-POST DRILL MACHINE: UPTO Dia : 40MM. 19. VERNIER CALLIPERS: UPTO 300 MM LENGTH. 20. INSIDE MICROMETERS: UPTO 1.5 MTRS LENGTH 21. OUTSIDE MICROMETERS: UPTO 500 MM 22. DEPTH MICROMETER 23. FEELER GUAGES :MIN:0.03MM TO 1.00MM 24. DIAL GUAGES-LEAST COUNT:0.01MM 25. CHAIN BLOCKS/PULLING DEVICE : MIN:2MT MAX:25MT 26. MULTI-SHEEVE PULLY UPTO 25 MT. 27. SLINGS UPTO PAYLOAD CAPACITY: 10 MT. 28. THEODOLITE 29. : ACCURACY: 0.5MM/MTR. 30. LEVEL INSTRUMENT: ACCURACY UPTO: 0.025MM/MTR 31. MEASURING TAPES: UPTO: 30MTR. 32. STEEL-SCALES: UPTO: 1MTR 33. LOW VOLTAGE (24VOLTS) POWER SUPPLY SOURCE. 34. INSULATED PLIERS FOR ELECTRICAL WORK 35. PLIERS

NOSE PLIER CROCODILE PLIER

26 FILES OF ALL CATEGORY. 27 VICE : 100MM X 300 MM 28 CUTTING TORCH WITH ADAPTERS. 29 CRIMPING TOOLS 30 SCREW-DRIVERS: UP TO 8.0 MM. 31 SLIP GAUGE 32 DIAL BORE GAUGE 33 TELESCOPIC GAUGE 34 TAPER GAUGE

Documents

Vendor Registration Form Part II