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sA@qS a. ENGTNEERSB{Ntr|ffi& @ NDIA LIMITED(aflerneqeqsre.orJrq-dFq) (A Govt. of India undeftaking)Research& DevelopmentComplex,Sector 16,Gurgaon 122001 Haryana)lnfrastructure Division

EIUlO5O/VISHWA/61M/sVishwanfrastructurendServices vt.LtdFlat o. 09/1'10,admaower-ll,2,Rajendralace,ew elhi-110008

Date:3.02.2012

Phone:4ft25711157Fax o. -011-25711157KindAttn:Mr.Vineet garwal, M nterceptorewer roject.Sub.:Layingof lnterceptor eweralongNajafgarh,upplementaryShahdara rains orabatementfpollutionn river amunaGommentslec{ricalubmissionsfNPS, warka.

Dear ir,Thiss n eferenceoyouretter o.VISPUEIUDJB/|C-Sewe/2011-2UACO|146ated 9.01.2012hereinouhad ubmittedalculationsorTransformerizing,able izing,LD, arthingayout, echanicalAdrawingsand ayoutfNew umpingtationt Dwarka.t s obe nformedhat hedocumentsave eeneviewedndcommentsor he ame re ivenelow:-GommentsnTransformerizinq:1)AsproposednSOR, rovisionf2 ncomerupply.t may enotedhat he wo ncomershall e erminatedin HTpanel ith us ouplerrovisionndnos, f outgoinghall e akenromHTpanel.Tpanelhall echargedndependentlyithndependentG ets sper chemefSLD vailablen enderocument.600 CBasprovidedor onnectingTpanelssnot equired.2)Whats hebasisordemandactorf0.6 akenncalculation?3) Which re ontinuousoad,ntermittentoads nd tand y oads? onsidertartingf biggest otor hichhave arallelperationor ransformerizingnd hortircuitalculation.4))Describe ist ontrolnd perationhilosophyor ransformer,.G peration,PFC anel tc. ncase fmainsailure.Cableizinq alculations:1)Whatsbasisorderatingactor?2)Furnishalculationor oltagerop fmotoruringtartingondition.3)Pleaseheckhe esignalue f nitial inaltemperature.4)SubmitocumentorAmpacityfLTandHT ablesonsidered.5) Symmetricalhort ircuit urrentonsideredor ransformerizings notO.K.Submithort ircuitunentcalculationor1000 VAransformer.6) Sourcef K'valueorAluminumonductorobeprovided.vqETr 6'r DEUVERINGEXCETLENCEHROUGH EOPLE

6w / Fax: 0'124-239'1410atq/Phone 01244794337q-ft'q-d6Tqtd-q FfrFrqd EBqt q-e-{. . torcff am +, q-{ frd-rro 06oRegd.Office Engineers ndiaBhawan, , BhikaljlCamaPlace,NewDelhi 100 066Visit us as httpJ/www.engineersindia.comfr=* t$ ot \r6dro1o-.S t

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7) Earthaultoopmpedancealculationsnot ubmittedithhe ableelection.leaseubmitt.Earthinq alculation:1)Submitetailedalculationorearthingcross heck , r.tmesh otentialnd top otentials,leaselsoprovidehe engthfearthingonductorrovidedorESS nd djoiningrea rperimeter.2)HowGlearth uswill e nstalledbove FL.Showypicalrrangement).ubmitourcef K'forsteel.3)Pleasehow arthingonnectionorMCC anelo142,apacitoranel142,ableray tc.D.GoPanel Transformerecondarvide:1)Asconfirmedyyou,he econdaryftransformerhall e onnectedoL.T anelybus uct nd ot able.SinqleineDiaqram:1)Submithe oadmnsideredorsizingfPDB nd DB. he DBoad hall econsideredasednminimumlux evelobemaintainedsper lause o4.15 fGS4,echnicalpecificationol-ll.2) APFC anels not akennto onsiderationorAMFpanel/PlCynchronizationanelnterockingor DGoperation/Mainsperation.3) ConfirmhetheruxiliaryoadsikeorMGV, SGhall peratensinglehaser hree haseupply.4) Provisionf DCsupplys notshownn documentss it willbe requiredoroperationf flowmeters,transmitterstc.5)Listhe elaysobeprovidedyD.GmanufacturersithD.G ets. heollowingrotectionikeReversehaseprotection,nder/overoltage/frequency/fluxing,ow owerlow, oss f excitation,egativeequencing,arthfault ack p, rippingndrip ircuitupervisionelay,ransformerestrictedarthault tc. hall eprovided.6) nstantaneousver urrentelay hall eprovidedormotorsbove0KW.Relay0N( Instantaneousarthfaultelay),51G(Backuparthault elay), ver urrentelay50) nd ransformeruxiliaryelayhall eprovidedinC/R/meteringanel.7)Additional0% pareeederre o beprovidedycontractororeach ating.8)10nos. fMGV hall eprovidednsteadfgnos. sshownyyou.9)AddCT'sor51G 64RwithDiesel eneratornd ddCT orAPFCanel.GADrawinq Lavoutf Pumpinqtation:HFDndProcessocuments notsubmittedet)1)The tartevel fpumphall e nvertevel f erminalewer. evisehe evelsccordingly.2)Two creensre hownnplan fdrawing.leaselarify.

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3) The engthf Dl ittings/Valves/Reducertc. hall eselectedo suit he equirement.hesame hall ereviewedithheData heetsfvalves ndittings.4) Accessoad equiredor emovalnd eplacementfgrit railer,umpsnd creens.ccordinglypproachroadshall eprovidedoallthesehreeocations'5) Showhe ocationf hedieseltorageequiredoremergencyieselen ets'6)N&E ridine hownorpumptationoes otmatch ith verallayoutslan GA rawings.7) Orientationfcarparkingobechangedsgoingn and utof heentranceearheguardoomsdifficultwithhe urrentayout.lso,ncluderovisionfparkingpaceor2 wheelers.8)Showhe ocationfHT ransmissionowerootingsPylons)'9)Provideetailsor rossingfdischargeising ainsearheexistingrain.10)Show lant nd rue orth.11)Providelapype RV n heoverflowipe.ReferS3'3'3v)'12)Provideerticalrabsars nd uardailsorallthe peningith ccessadders.13)Provideccess latformsn thevalve hamberor accessingnd maintenancef pipeworkandinstrumentation14)Providelopen he alvehamberowardsrain it.15)Provideiquidrap t he rain it oavoidoul asrom etwell ntrapn he alve hamber.16)Confirmll langesdaptorsreprovidedithie ods'17)Provideurgealculationor eviewnd pproval.howocation,alculationnd ize f hrustlock.18)Showocationfair eleasealve/vacuumeleasealvenpumpingains.You re equestedocomplyith boveommentsnd ubmithe evisedocumentst he arliest.Thankingou , A/\i,\v*

(Sanjbyr,tt hejee)'DGMlnf astructue-Poject-07)Telephoneo, 1244794337

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