SINOMACH–CNEEC–PENTAJOINTOPERATION.1 發(fā)-變組運行手冊3.1 OperationManualofgenerator-transformerunit3.1.1 范圍3.1.1 Scope本運行手冊規(guī)定了印尼INDRAMAYU3×330MW燃煤電站項目發(fā)電機組設(shè)備規(guī)范、機組啟動、正常運行調(diào)整及維護、機組停運、事故處理、輔助設(shè)備運行操作和機組聯(lián)鎖保護試驗等。ThisO&MManualcoverstheequipmentSpecifications,unitstart-up,regulationandmaintenanceduringnormaloperation,unitshutdown,trouble-shooting,operationofauxiliaryEquipandinterlockprotectiontestofINDRAMAYU3×330MWCoal-firedPowerPlant.本運行手冊適用于印尼INDRAMAYU3×330MW燃煤電站項目汽輪發(fā)電機組設(shè)備、系統(tǒng)的運行和事故處理，凡從事該機組運行、檢修及管理的人員均應(yīng)熟悉或掌握本手冊的全部或部分內(nèi)容。Thismanualisonlysuitableforoperation,maintenanceandtrouble-shootingoftheSTGequipment,unit.Thus,anyonethatwilljointheoperation,maintenanceandmanagementofthisunitshouldbefamiliarwiththewholeorpartofthismanual.3.1.2 規(guī)范性引用文件3.1.2 SpecifiedReference下列文件中的條款均是中國電力管理的相關(guān)文件,通過本手冊的引用而成為本手冊的條款。Termsinthedocumentsbelow,whicharetherelevantdocumentsofChinesePowerAdministration,havebeenquotedtobesomeitemsofthismanual.《防止電氣誤操作裝置管理規(guī)定》 國家電網(wǎng)安監(jiān)[2006]904號RegulationstoPreventIncorrectElectricalOperations[2006]No.904StateGridSafeProductionSupervisory《防止電氣生產(chǎn)重大事故的二十五項重點要求》國家電力公司[2000]25RequirementsforPreventingSevereAccidentsduringPowerGenerationNationalElectricalPowerCorporation[2000]《發(fā)電機運行規(guī)程》國電發(fā)[1999]579號 RegulationonGeneratorOperationNationalElectricalPowerCo.[1999]No.579《汽輪發(fā)電機技術(shù)條件》SD

270—88TechnicalConditionsofSTGSD

270—88《繼電保護及安全自動裝置運行管理規(guī)程》(82)水電生字第11號RegulationsonOperation&ManagementofRelayProtections&SafeAutomaticDevices(82)HydraulicPowerGenerationNo.11《高壓斷路器運行規(guī)程》電供[1991]30號RegulationonHVCircuitBreakerOperationUtility(1991)No.30《變電站運行導(dǎo)則》DL/T969-2005GuidelineonSub-stationOperationDL/T969-2005《電力變壓器運行規(guī)程》DL/T572-95RegulationonElectricalTransformerOperationDL/T572-95《電力電纜運行規(guī)程》（79）電生字第53號RegulationonElectricalCableOperationPowerGenerationNo.53《電力設(shè)備預(yù)防性試驗規(guī)程》DL/T596-1996RegulationonPreventiveTestforElectricalEquipmentDL/T596-1996《電力系統(tǒng)用蓄電池直流電源裝置運行及維護技術(shù)規(guī)程》DL/T724-2000RegulationonTechnologyofO&MofDCPowerDeviceofBatteriesforElectricalSystem《繼電保護及安全自動裝置運行管理規(guī)程》西電調(diào)字(1993)7號RegulationsonOperation&ManagementofRelayProtections&AutoSafetyDevicesWesternPowerDispatchNo.7(1993)《微機繼電保護裝置運行管理規(guī)程》DL/T587-96RegulationsonOperation&ManagementofMicro-computerizedRelayProtectionDeviceDL/T587-96《干式電力變壓器技術(shù)參數(shù)和要求》GB/T10228-1997TechnicalParameters&RequirementsofDry-typeElectricalTransformerGB/T10228-1997《干式電力變壓器》GB6450-86Dry-typeElectricalTransformerGB6450-86《電業(yè)安全工作規(guī)程(發(fā)電廠和變電所電氣部分)》DL408-91PowerIndustrySafetyCode(ElectricalPartofPowerPlant&Sub-station)DL408-913.1.3 概述及技術(shù)規(guī)范3.1.3 OverviewandTechnicalSpecifications印度尼西亞INDRAMAYU電廠工程位于西爪哇省IndramayuRegency市Sukara區(qū)Sumuradem村，位于雅加達以東約180公里。TheIndramayuProjectisconstructedinSumurademvillageofSukaradistrictinthecityofIndramayuRegencyinWesternJavaandislocatedapproximately180kmtotheeastofJakarta.INDRAMAYU電廠安裝3×330MW國產(chǎn)亞臨界燃煤濕冷發(fā)電機組，電廠內(nèi)設(shè)150KV配電裝置，出4回線路接入印尼150KV系統(tǒng)。3×330MWsub-criticalcoal-firedwatercoolinggenerationunitsareinstalledinIndramayupowerplantwhere150KVswitchgearisequippedandfouroutgoinglinesareconnectedwiththe150KVsystemofIndonesia.本工程燃用來自Sumatera和Kalimantan的煤炭，駁船運輸進廠，廠內(nèi)設(shè)煤碼頭。ThecoalforthisprojectcomesfromSumateraandKalimantanandistransportedintothecoaljettywithabargeinthepowerplant.冷卻系統(tǒng)采用海水直流冷卻，冷卻水取自爪哇海的海水。廠內(nèi)設(shè)置海水淡化站，以海水淡化后的生水作為生活用水和鍋爐補充用水。ThecoolingsystemadoptsseawaterflowcoolingforwhichthewaterisobtainedfromJavaSea.Onewaterdesalinationstationisavailableinthepowerplantandthetreatedwaterisusedastherawwaterfordomesticwaterandwatersupplyofboiler.機組主要承擔(dān)基本負荷，并具有一定的調(diào)峰能力(30%～90%范圍)。Theunitsmainlycarrythebasicloadandiscapableofpeakregulationincertainscope(30%～90%).設(shè)備日利用小時數(shù)：20小時Dailyavailabilityofequipmentinhrs:20h設(shè)備年利用小時數(shù)：6000小時Annualavailabilityofequipmentinhrs:6000h鍋爐為北京巴布科克.威爾科克斯有限公司提供的1050t/h，亞臨界壓力、一次中間再熱、單爐膛、自然循環(huán)、平衡通風(fēng)、固態(tài)排渣、前后墻對沖燃燒、汽包型燃煤鍋爐，露天布置，全鋼構(gòu)架。Theboilerinuse,whichisprovidedbyBabcock&WilcoxCompany,isdesignedinthisway:itisofsub-criticalpressure,primaryintermediatereheating,singlefurnace,naturalcirculation,balancedventilation,solidslagdischarge,crossfiringbetweenthefrontandrearwall,steamdrumcoal-firedboiler,outdoorarrangementwithawholesteelframework.汽輪機由北京北重汽輪電機有限公司提供的330MW亞臨界參數(shù)、一次中間再熱、單軸三缸雙排汽凝汽式汽輪機。型號：N330-17.75/540/540Theturbine,whichisproducedbyBeijingBeizhongSTGCorporation,isof330MWsub-criticalparameters,primaryintermediatereheating.Thiscondensate-typesteamturbineisofprimaryintermediatereheatingandhasonesingleshaft,3casingsanddualexhaust.ItsmodelisN330-17.75/540/540.發(fā)電機由北京北重汽輪電機有限公司提供的QFSN-350-2型自并勵靜止勵磁、水-氫-氫冷卻的發(fā)電機組。TheQFSN-350-2generatorprovidedbyBeijingBeizhongSTGCorporationisofself-shuntstaticexcitationwithH2O-H2-H2cooling. 發(fā)-變組及自并勵勵磁系統(tǒng)概述及技術(shù)規(guī)范 OverviewandTechnicalSpecificationsforgenerator-transformerunitandSelf-shuntExcitationSystem.1 發(fā)電機-變壓器組接線概述.1 GeneralDescriptionaboutConnectionofgenerator-transformerunit3臺330MW汽輪發(fā)電機組，以發(fā)電機-變壓器組單元接線型式接入廠內(nèi)150KV配電裝置。發(fā)電機出線端和中性點端的出線套管各裝設(shè)4組電流互感器，發(fā)電機出線端配置3組電壓互感器和1組避雷器，發(fā)電機中性點經(jīng)單相接地變壓器二次側(cè)電阻接地。發(fā)電機與主變壓器之間的連接采用全連式離相封閉母線，高壓廠用變壓器和勵磁變壓器由發(fā)電機與主變低壓側(cè)之間引接。發(fā)電機勵磁采用靜態(tài)自并勵系統(tǒng)。Three330MWSTGunitsareconnectedwiththe150KVswitchgearinformofgenerator-transformerunit.4CTsareinstalledatthebusbarbushingsonthegeneratoroutgoingsideandneutralpointsiderespectively.3PTsand1groupofsurgearrestersareequippedonthegeneratoroutgoingside.Thegeneratorneutralpointisearthedviaasingletransformerwhosesecondarysideisconnectedwithashuntresistor;oneendoftheresistorisearthed.Inaddition,thegeneratorisconnectedwiththetransformerwithwholeconnectionisolated-phaseenclosedbusbarandtheHVauxiliarytransformeraswellastheexcitationtransformerisconnectedbetweenthegeneratorandthemaintransformer150KV配電裝置采用采用3/2斷路器接線方式，3臺發(fā)電機組經(jīng)主變壓器升壓接入150KV母線。全廠設(shè)置2臺起動/備用變壓器，作為電廠機組起動和備用電源，由150KV配電裝置母線引接。設(shè)置1臺150/20KV城市供電變壓器（TFT）由150KV母線引接。150KV系統(tǒng)共有3回發(fā)-變組進線，2回起備變出線，1回TFT出線，4回線路出線，組成5個完整串。除過TFT外，所有變壓器進線及出線回路均裝設(shè)三相電壓互感器，在150KV母線裝設(shè)單相電壓互感器。The150KVswitchgearadoptstwothirdsCBconnectionandthe3generatorssetaresteppedupby3mainpowertransformersandthenconnectedtothe150KVbusbar.2setofstart-up/standbytransformersareinstalledintheplant,servingasplantstart-upandstandbypowersource,whichareconnectedfromthe150KVbusbar.One150/20KVTFTisequipped,whichisoriginatedfromthe150KVbusbarforthe150KVsystem,therearetotally3in-cominglinesareavailableforgenerator-transformerunit,2outgoinglinesforSST,oneoutgoingforTFTand4outgoinglines.Therefore,5completeincomingandoutgoingloopsareformed.ExcepttheTFT,allthetransformersarefittedwith3-phasePTsforin-comingandoutgoinglines.Additional,singlephasePTsarefittedforthe150KVbusbarsystem.150KV配電裝置采用屋外中型布置型式，為了減小配電裝置縱向尺寸，加長橫向尺寸以利于變壓器能夠直接架空進線，斷路器采用雙列布置，每一串的進出線回路占用2個間隔。在母線的兩端設(shè)置母線接地開關(guān)。The150KVswitchgearadoptsoutdoorintermediate-typelayouttodecreasetheverticalsizeandextenttransversesizesothatthetransformercanbedirectlyconnectedwiththeoverheadin-coming.TheCBisarrangedin2columnsandeachbunchofin-comingandoutgoingoccupies2chambers.Foreachbusbar,2earthingdisconnectorsareinstalledonthebothends..2 發(fā)電機技術(shù)規(guī)范.2 TechnicalSpecificationsofGenerator發(fā)電機由北京北重汽輪電機有限公司提供的QFSN-350-2型自并勵靜止勵磁、水-氫-氫冷卻的發(fā)電機組。ThegeneratorprovidedbyBeijingBeizhongSTGCorporationisofself-shuntstaticexcitation,H2O-H2-H2cooling.ItsmodelisQFSN-350-2.型號T255-460（QFSN-350-2型）額定電壓24KV電壓波動±5％額定功率因數(shù)0.85額定功率330MW視在功率388MVA最大連續(xù)輸出容量347MVA額定電流9339A額定轉(zhuǎn)速3000r／min額定效率98.85％額定勵磁電壓542V額定勵磁電流2495A相數(shù)3相極數(shù)2極額定頻率50Hz穩(wěn)態(tài)負序電流I2/In=12%暫態(tài)負序電流（I2/In）2t=10s勵磁方式機端自并勵定子繞組聯(lián)接方式Y(jié)/Y絕緣等級F級生產(chǎn)廠家有限責(zé)任公司北京北重汽輪電機ModelT255-460(QFSN-350-2Type)RatedVoltage24KVVoltageFluctuation±5％RatedPowerFactor0.85RatedPower330MWApparentPower388MVAMax.ContinuousOutput347MVARatedCurrent9339ARatedRotationSpeed3000r／minRatedEfficiency98.85％RatedExcitationVoltage542VRatedExcitationCurrent2495A2495ANumberofPhases3NumberofPoles2RatedFrequency50HzStableNegativeSequenceCurrentI2/In=12%TransientNegativeSequenceCurrent（I2/In）2t=10sExcitationModeSelf-shuntExcitationfromGeneratorSideStatorWindingConnectionTypeY/YInsulationLevelFManufacturerBeijingBeizhongSTGCorporation.3 發(fā)電機冷卻系統(tǒng)規(guī)范.3 TechnicalSpecificationsforGeneratorCoolingSystem發(fā)電機采用水-氫-氫的冷卻方式，發(fā)電機定子繞組采用水內(nèi)冷，轉(zhuǎn)子繞組與定子鐵芯采用氫氣冷卻方式。發(fā)電機內(nèi)部為密閉循環(huán)通風(fēng)系統(tǒng)，氫氣由外部氫系統(tǒng)供給，并經(jīng)發(fā)電機兩側(cè)的四個氫氣冷卻器冷卻。定子線圈的冷卻水由外部獨立循環(huán)的內(nèi)冷水系統(tǒng)供給。ThegeneratoradoptsH2O-H2-H2coolingmodewhichmeansthestatorwindingsarecooledbyinternalwater,therotorwindingandstatorcorearecooledbyH2.TheinsideofthegeneratorisonesealedcirculationventilationsystemandH2,whichiscooledbythe4coolersatbothendsofthegenerator,isfilledintothegeneratorbytheexternalH2system.Inaddition,thestatorwindingcoolingwatercomesfromtheindependentexternalcirculativeinternalcoolingwatersystem..3.1 定子繞組的冷卻.3.1 CoolingofStatorWindings冷卻方式直接冷卻冷卻介質(zhì)除鹽水定子繞組水流量60m3出線端子水流量9m3定子繞組進口水溫<45℃定子繞組出口水溫<60℃定冷水導(dǎo)電率<0.5ms/cm定冷水PH值7～8定冷水硬度<2×10-3mol/m3定冷水機械雜質(zhì)<5m定冷水冷卻器臺數(shù)4冷卻器冷卻水流量120t/h冷卻器冷卻水入口溫度正常20℃最高33℃冷卻器冷卻水出口溫度正常28.7℃最高41.7℃CoolingModeDirectCoolingCoolingMediumDemineralizedWaterWaterFlowinStatorWinding60m3WaterFlowatOutletEnd9m3InletWaterTemp.ofStatorWinding<45℃OutletWaterTemp.ofStatorWinding<60℃ConductivityofStatorCoolingWater<0.5ms/cmPHofStatorCoolingWater7～8HardnessofStatorCoolingWater<2×10-3mol/m3MechanicalImpurityofStatorCoolingWater<5mQuantityofStatorCoolers4WaterFlowofStatorCooler120t/hInletWaterTemp.ofCooler20℃asnormal33℃asMax.OutletWaterTemp.ofCooler20℃asnormal33℃asMax..3.2 定子鐵芯和轉(zhuǎn)子繞組的冷卻.3.2 CoolingofStatorCoreandRotorWinding冷卻方式表面冷卻冷卻介質(zhì)H2氫氣壓力0.3MPa氫氣純度98%氫氣流量36m3氫冷器數(shù)量4布置方式軸向冷卻器冷卻水流量325t/h總冷卻面積736m冷卻器冷卻水額定溫度26.7℃冷卻器冷卻水最高溫度39.7℃水室壓降0.05Mpa(0.5bar)冷氫溫度30℃(水溫20℃)43℃(水溫33℃)熱氫溫度44℃(20℃)57℃(水溫33℃)CoolingModeSurfaceCoolingCoolingMediumH2H2Pressure0.3MPaH2Purity98%H2Flow36m3QuantityofH2Coolers4LayoutAxialWaterFlowinCooler325t/hTotalCoolingArea736mRatedTemp.ofCoolingWaterofCooler26.7℃Max.Temp.ofCoolingWater39.7℃PressureDropofWaterChamber0.05Mpa(0.5bar)ColdH2Temp.30℃(WaterTemp.at20℃)43℃(WaterTemp.at33℃)HotH2Temp.44℃(WaterTemp.at20℃)57℃(WaterTemp.at33℃).4 勵磁系統(tǒng)概述及其技術(shù)規(guī)范.4 Overview&TechnicalSpecificationsofExcitationSystem#1、#2、#3發(fā)電機組勵磁系統(tǒng)均采用自并勵靜止勵磁系統(tǒng)，通過勵磁變壓器從發(fā)電機機端取得勵磁電源，為高起始快速響應(yīng)系統(tǒng)。隨發(fā)電機配套體提供勵磁設(shè)備，主要技術(shù)指標(biāo)為：Staticself-shuntexcitationsystemisusedforunit#1,#2and#3.Inthissystem,excitationpowerisobtainedfromthegeneratoroutputviaoneexcitationtransformeranditisonequickrespondingsystemwithhighinitiation.Theexcitationequipmentisprovidedwiththegeneratorasawholeset.Theparametersareshownasfollows:頂值電壓倍數(shù)：≥2.0強勵時間：≥20s響應(yīng)時間：≤0.1s(高起始響應(yīng))PeakVoltageMultiple:≥2.0ForcedExcitationDuration:≥20sResponsetime:≤0.1s(HighInitiationResponse)勵磁系統(tǒng)主要由勵磁變壓器、勵磁整流柜、磁場開關(guān)柜、發(fā)電機起勵和勵磁調(diào)節(jié)器柜等裝置，以及監(jiān)測、保護、報警輔助裝置組成。Theexcitationsystemconsistsofoneexcitationtransformer,anexcitationrectifierpanel,amagneticfieldCBpanel,oneAVRpanelaswellasdevicessuchasmonitor,protectionsandalarms..4.1 勵磁變壓器.4.1 ExcitationTransformer勵磁變壓器采用勵磁系統(tǒng)配套干式變壓器，能滿足機組正常運行及強勵時的需要。滿足發(fā)電機做空載、短路試驗的需要，參數(shù)如下：Onedry-typetransformer,whichisprovidedwiththeexcitationsystemasawholeset,isusedastheexcitationtransformertomeetthedemandofnormalunitoperationandforcedexcitation.Also,needsofno-loadtestandshort-circuittestcanbesatisfied.Parametersofthistransformerarelistedasfollows:型式單相干式變壓器組容量4313KVA滿載二次側(cè)電流3000A滿載二次側(cè)電壓900V額定電壓24／0.9KV頻率50Hz聯(lián)結(jié)方式Y(jié),d11阻抗8.14％冷卻方式自然風(fēng)冷/強迫風(fēng)冷TypeSinglePhaseDry-typeTransformerCapacity4313KVAFull-loadCurrentonSecondarySide3000AFull-loadVoltageonSecondarySide900VRatedVoltage24／0.9KVFrequency50HzConnectionmodelsY,d11Impedance8.14％CoolingModeNatural/ForcedAirCooling.4.2 勵磁整流柜.4.2 RectifierPanelforExcitation可控硅整流裝置并聯(lián)可控硅元件有1/4并聯(lián)支路退出運行時能滿足發(fā)電機強勵要求，有1/2并聯(lián)支路退出運行時能保證發(fā)電機在額定工況下連續(xù)運行。If1/4oftheparallelthyristorelementsoftherectifierareoutofoperation,thedemandforforcedexcitationcanstillbesatisfied;if1/2oftheparallelthyristorelementsareoutofoperation,thegeneratorcanoperateundertheratedworkingconditioncontinuously.整流柜采用強迫風(fēng)冷，采用可靠的低噪聲風(fēng)機，留有100%的備用容量，在風(fēng)壓或風(fēng)量不足時備用風(fēng)機能自動投入。提供2路冷卻風(fēng)機電源，2路電源能夠自動切換。Therectifierpaneladoptsforcedaircoolingmodeandonereliablelownoiseairfanwith100%ofsparecapacityandthebackupairfancanstartupautomatically.Besides,twopowersupplieswhichcanbeswitchedovertotheotherautomaticallyareavailableforthecoolingfans..4.3 磁場開關(guān)柜.4.3 MagneticFieldCBPanel發(fā)電機滅磁采用逆變和滅磁開關(guān)（直流式）兩種方式。并設(shè)有轉(zhuǎn)子過壓保護裝置。Thegeneratorde-excitationadoptstheinversionmodeandde-excitationCB(DC)mode.Moreover,onerotorovervoltageprotectiondeviceisinstalled..4.4 發(fā)電機起勵.4.4 InitialExcitationofGenerator起勵電源容量滿足發(fā)電機建壓大于10%額定電壓的要求。起勵成功后或失敗時，起勵回路均能自動退出。起勵電源采用交流。Theinitialexcitationpowershouldhelpthegeneratorestablishavoltageofmorethan10%oftheratedvalue.Whenevertheinitialexcitationisfinishedorhasfailed,theinitialexcitationcircuitshouldbeoutofoperationautomatically.TheinitialpoweradoptsACpower..4.5 勵磁調(diào)節(jié)器（AVR）柜.4.5 AVRPanel勵磁調(diào)節(jié)器（AVR）采用廣州擎天電氣控制實業(yè)有限公司生產(chǎn)的EXC9000型微機勵磁調(diào)節(jié)器。TheadoptedmicrocomputerAVRofwhichthemodelisEXC9000isprovidedbyElectricalControlSub-companyofGuangzhouKinteIndustryCo.,Ltd.AVR采用微機/微機/模擬三通道雙模冗余結(jié)構(gòu)，由兩個自動電壓調(diào)節(jié)通道（A、B）和一個手動調(diào)節(jié)通道（C）組成，這三個通道從測量回路到脈沖輸出回路完全獨立。調(diào)節(jié)通道以主從方式工作，其中一個自動電壓調(diào)節(jié)通道作為主通道，另一個自動電壓調(diào)節(jié)通道作為第一備用通道，手動調(diào)節(jié)通道作為第二備用通道。各備用通道可自動跟蹤，保證無擾動切換。設(shè)置AVR與DCS接口，實現(xiàn)控制室內(nèi)對AVR的遠方控制。調(diào)節(jié)器通道組合比較靈活，共計有三通道、雙微機、微機/模擬、自動/手動等四種組合。TheAVRadoptsthestructureofmicrocomputer/microcomputer/analogue3-channel2-moduleredundancy.The3channelsarecomposedby2autovoltageregulationchannels(A,B)andonemanualregulationchannel(C)andthosethreechannelshavetheirindependentmeasurementcircuitandpulseoutputcircuit.Theregulationchanneloperatesinthemain-bypassmodewhichmeansoneofthemworksasthemainchannel,theotheroneasthefirstbackupchannelandthemanualregulationchannelasthesecondbackupchannel.What’smore,eachchanneliscapableofautomatictracingtoensureswitchoverwithoutdisturbance.OneinterfacebetweenAVRandDCSisavailablewhichcanactualizeremotecontrolforAVRincontrolcentre.OnemorecharacteristicforAVRisthatthecombinationofchannelsisflexibleandtotally4combinationsareavailablewhichare3channels,dualmicrocomputer,microcomputer/analogue,auto/manual.運行方式：恒發(fā)電機機端電壓的自動調(diào)節(jié)功能、恒發(fā)電機轉(zhuǎn)子電流的手動調(diào)節(jié)功能、疊加的恒無功調(diào)節(jié)、疊加的恒功率因數(shù)調(diào)節(jié)。我們經(jīng)常采用的運行方式為恒發(fā)電機機端電壓的自動調(diào)節(jié)方式.Operationmode:constantautoregulationofgeneratoroutputvoltage,constantmanualregulationofgeneratorrotorcurrent,superposedconstantreactivepowerregulationandsuperposedconstantpowerfactorregulation.Theoperationmodeweusuallyuseisconstantautoregulationofgeneratoroutputvoltage.起勵控制：采用快速脈沖列技術(shù)以實現(xiàn)殘壓起勵。在起勵過程中，在可控硅整流器的輸入端僅需要約10V～20V的電壓即可正常工作。如果電壓低于10V～20V，可控硅整流器就會被連續(xù)地觸發(fā)（二極管工作模式）以達到該值。然而，如果在5秒內(nèi)殘壓起勵失敗，則起動備用起勵回路。這個備用回路設(shè)計用于達到所需要的10V～20V電壓。在機端電壓達到發(fā)電機電壓的10%時，備用起勵回路自動退出，立即開始軟起勵過程并建壓到預(yù)定的電壓水平。整個起勵過程和順序控制是通過調(diào)節(jié)器實現(xiàn)的。備用起勵回路為模塊化結(jié)構(gòu)，包括空氣開關(guān)、起勵接觸器、導(dǎo)向二極管、限流電阻。Initialexcitationcontrol:theresidualvoltageexcitationinitiationisactualizedwithquickpulsecolumn.Duringtheprocessofinitialexcitation,only10V～20Visneededintotheinletendofthecontrolledrectifierfornormaloperation.Butthecontrolledrectifierwillbeconstantlytriggered(diodeoperationmode)toreach10V～20Vifthevoltageisnotadequate.However,iftheresidualvoltageexcitationinitiationfailswithin5sec,thebackupexcitationcircuitwillbeputintoservicewhichisusedtoprovidetheneededvoltageof10V～20V.Whenthegeneratoroutputvoltageclimbsto10%oftheratedvalue,thebackupinitialexcitationcircuitwillactivatedautomatically.Next,thesoftexcitationwillbestartedtoestablishtheratedvoltagelevel.TheentireprocessandsequentialcontrolareactualizedbyAVR.Inaddition,thebackupinitialexcitationcircuitisofmodulestructureconsistingofavacuumCB,oneinitialexcitationcontactor,onediodeandonecurrentlimitingresistor..4.6 勵磁裝置的限制功能.4.6 LimitationFunctionsofExcitationDevice:V/F限制；V/FLimitation過勵限制；Over-excitationLimitation欠勵限制；Under-excitationLimitation定子電流限制；StatorCurrentLimitation最大磁場電流限制；Max.MagneticFieldCurrentLimitation最小磁場電流限制。Min.MagneticFieldCurrentLimitationP/Q限制器P/QLimiter電力系統(tǒng)穩(wěn)定器（PSS功能）PowerSystemStabilizer(PSSfunction).4.7 勵磁裝置的監(jiān)測功能.4.7 MonitoringFunctionofExcitationDevicePT斷線；PTWirebreak電源故障；PowerSupplyFault調(diào)節(jié)器軟件故障；SoftwareFaultofAVR調(diào)節(jié)器硬件故障；HardwareFaultofAVR脈沖故障；PulseFault整流橋故障報警；AlarmforRectificationBridgeFault轉(zhuǎn)子過熱報警；AlarmforRotorOverheating勵磁變超溫報警；AlarmforOver-temperatureofExcitationTransformer通訊故障報警。CommunicationFaultAlarm.4.8 勵磁裝置的保護功能.4.8 ProtectiveV/f保護；V/FProtection整流橋內(nèi)部短路跳閘；RectificationBridgeInternalShort-circuitedtrip整流橋過載跳閘；RectificationBridgeOverloadTrip轉(zhuǎn)子過熱跳閘；RotorOverheatTrip轉(zhuǎn)子接地跳閘；GroundedRotortrip轉(zhuǎn)子過電壓跳閘；RotorOver-voltageTrip轉(zhuǎn)子過流保護；RotorOvercurrentTrip失磁保護；ExcitationLossProtection勵磁變過流保護；ExcitationTransformerOver-CurrentProtection勵磁變超溫跳閘ExcitationTransformerOverheatingTrip.交流側(cè)過電壓保護Over-voltageProtectiononACSide直流側(cè)過電壓保護Over-voltageProtectiononDCSide.4.9 勵磁裝置的其它功能.4.9 OtherFunctionsofAVR軟起勵；SoftInitialExcitation殘壓起勵；ResidualVoltageInitialExcitation有功和無功補償；CompensationforActiveandReactivePower系統(tǒng)電壓跟蹤；NetworkVoltageTracing通道之間自動跟蹤；AutoTracingbetweenChannels故障智能檢測和自動切換；IntelligentFaultDetectionandAutoSwitchover容錯控制；ToleranceControl故障錄波和故障記錄；FaultOscillographandRecording輔助調(diào)試和試驗功能；CommissioningandTesting智能均流、智能封脈沖。IntelligentCurrentEqualizingandIntelligentPulseBlocking.5 主變壓器技術(shù)規(guī)范.5 TechnicalSpecificationsofMainTransformer型號SFP—400000/150額定容量400MVA額定電壓150±2×2.5%/24KV額定電流1540A/9623A連接組別Yn，d11相數(shù)三相額定頻率50Hz冷卻方式強迫油循環(huán)風(fēng)冷空載損耗№1主變193.91kW№2主變197.38kW№3主變197.38kW阻抗電壓№1主變14%№2主變14%№3主變14%空載電流№1主變0.17%№2主變0.19%№3主變0.17%負載損耗№1主變833.57kW№2主變839.59kW№3主變833.57kW調(diào)壓方式無載調(diào)壓油面溫升55K中性點接地方式直接接地生產(chǎn)廠家保定天威保變電氣股份有限公司ModelSFP—400000/150RatedCapacity400MVARatedVoltage150±2×2.5%/24KVRatedcurrent1540A/9623AConnectionmodeYn，d11NumberofPhases3-phaseRatedFrequency50HzCoolingModeForcedOilCirculationAir-coolingNo-loadlossMainTRANSFORMERNo.1193.91kWMainTRANSFORMERNo.2197.38kWMainTRANSFORMERNo.3197.38kWImpedanceVoltageMainTRANSFORMERNo.114%MainTRANSFORMERNo.214%MainTRANSFORMERNo.314%No-loadCurrentMainTRANSFORMERNo.10.17%MainTRANSFORMERNo.20.19%MainTRANSFORMERNo.30.17%On-loadlossMainTRANSFORMERNo.1833.57kWMainTRANSFORMERNo.2839.59kWMainTRANSFORMERNo.3833.57kWTapChangingModeNo-loadTapChangingOilSurfaceTemp.Rising55KEarthingModeofNeutralPointDirectgroundingManufacturerBaodingTianweiBaobianElectricCo.,Ltd.6 廠用高壓變壓器技術(shù)規(guī)范.6 TechnicalSpecificationsofAuxiliaryHVTransformer型號SFF-CY-40000/24TH額定容量40/25-25MVA額定電壓24±2×2.5%/6.3-6.3KV額定頻率50Hz額定電流962.3/2291.1-2291.1A相數(shù)三相空載電流№1廠高變0.19%№2廠高變0.26%№3廠高變0.19%半穿越阻抗電壓№1廠高變17.0%、16.9%№2廠高變17.1%、16.7%№3廠高變17.0%、16.9%冷卻方式自然油循環(huán)風(fēng)冷ONAN/ONAF溫升極限繞組60K頂層油溫50K調(diào)壓方式無載調(diào)壓連接組別D,yn1-yn1空載損耗№1廠高變29.6kW№2廠高變33.1kW№3廠高變29.6kW負載損耗№1廠高變280.2kW№2廠高變198.5kW№3廠高變280.2kW中性點接地方式經(jīng)18.18Ω中值電阻接地生產(chǎn)廠家特變電工衡陽變壓器有限公司ModelSFF-CY-40000/24THRatedCapacity40/25-25MVARatedVoltage24±2×2.5%/6.3-6.3KVRatedFrequency50HzRatedCurrent962.3/2291.1-2291.1ANumberofPhases3No-loadCurrentHVAuxiliaryTRANSFORMERNo.10.19%HVAuxiliaryTRANSFORMERNo.20.26%HVAuxiliaryTRANSFORMERNo.30.19%TransitionalImpedanceVoltageHVAuxiliaryTRANSFORMERNo.117.0%,16.9%HVAuxiliaryTRANSFORMERNo.217.1%,16.7%HVAuxiliaryTRANSFORMERNo.317.0%,16.9%CoolingModeNaturalOilCirculationAir-coolingONAN/ONAFTemp.RisingLimitWinding60KUpperLayerOilTemp.50KTapChangingModeNo-loadTapChangingConnectionGroupD,yn1-yn1No-loadlossHVAuxiliaryTRANSFORMERNo.129.6kWHVAuxiliaryTRANSFORMERNo.233.1kWHVAuxiliaryTRANSFORMERNo.329.6kWOn-loadlossHVAuxiliaryTRANSFORMERNo.1280.2kWHVAuxiliaryTRANSFORMERNo.2198.5kWHVAuxiliaryTRANSFORMERNo.3280.2kWEarthingModeofNeutralPointViaOneIntermediateResistorof18.18ΩManufacturerTBEC.7 啟動／備用變技術(shù)規(guī)范:.7 TechnicalSpecificationsofSST型號SFZ-31500/150額定容量31500KVA額定電壓150±8×1.25%/6.3KV額定電流121.24/2886.75接線組別Yn，yn+d調(diào)壓方式有載調(diào)壓相數(shù)三相額定頻率50Hz冷卻方式ONAN/ONAF負載損耗310kW空載損耗96.9kW阻抗電壓14%接地方式高壓側(cè)直接接地低壓側(cè)經(jīng)18.18Ω中值電阻接地生產(chǎn)廠家特變電工衡陽變壓器有限公司ModelSFZ-31500/150RatedCapacity31500KVARatedVoltage150±8×1.25%/6.3KVRatedCurrent121.24/2886.75ConnectionmodeYn，yn+dVoltageadjustingmodeVoltageadjustingwithloadNumberofPhases3RatedFrequency50HzCoolingModeONAN/ONAFOn-loadloss310kWNo-loadloss96.9kWImpedanceVoltage14%EarthingModeDirectlyEarthedonHVsideViaOneIntermediateResistorof18.18ΩonLVsideManufacturerTBEC.8 發(fā)-.8 Technicalspecificationsfortheauxiliaryequipmentofgenerator-transformer.8.1 離相式封閉母線技術(shù)規(guī)范.8.1 Technicalspecificationsforphase-segregatedenclosedbusbar封閉母線基本技術(shù)參數(shù)基本技術(shù)參數(shù)主回路分支回路額定電壓(KV)2424設(shè)備最高電壓(KV)27.627.6額定電流(kA)12.51.6額定頻率(Hz)5050短時工頻耐受電壓(KV)(有效值)150150雷電沖擊耐受電壓(KV)(峰值)7070動穩(wěn)定電流(kA)2003152S熱穩(wěn)定電流(kA)80125泄漏比距(mm/KV)3131母線外徑及厚度(mm)φ500×12φ500×10外殼外徑厚度(mm)φ1050×8φ700×5相間距離(mm)1300廠高變分支1000PT分支1000生產(chǎn)廠家江蘇大全封閉母線有限公司BasictechnicalparametersforenclosedbusbarBasictechnicalparametersMaincircuitBranchcircuitRatedvoltage(KV)2424Highestvoltageforequipment(KV)27.627.6Ratedcurrent(kA)12.51.6Ratedfrequency(Hz)5050Short-timepowerfrequencywithstandingvoltage(RMS)(KV)150150Lighteningimpulsewithstandvoltage(Peakvalue)(KV)7070Dynamicstabilizingcurrent(kA)2003152S-thermalstabilizingcurrent(kA)80125Leakagedistance–voltageratio(mm/KV)3131Busbarouterdiameterandthickness(mm)φ500×12φ500×10Casingouterdiameterandthickness(mm)φ1050×8φ700×5Phase-to-phasedistance(mm)1300AuxiliaryHVtransformerbranch1000PTBranch1000ManufacturerJiangSuDaQuanEnclosedBusbarCorp.Ltd.封閉母線最熱點溫度和溫升允許值封閉母線的部件允許溫度允許溫升鋁導(dǎo)線90℃45K螺栓緊固連接鍍銀接觸面105℃60K鋁外殼70℃25K在4s熱穩(wěn)定電流的作用下，鋁與鋁合金導(dǎo)體的短時發(fā)熱溫度不應(yīng)超過200℃。MaximumtemperatureandtemperaturepermittingvaluefortheenclosedbusbarEnclosedbusbarcomponentsAllowabletemp.riseAllowabletemp.riseAluminumconductor90℃45KSilverplatinginterfaceforbolttighteningandconnecting105℃60KAluminumcasing70℃25KUnderthefunctionof4S-thermalstabilizingcurrent,short-timeheatingtemperatureofaluminumandaluminumalloyconductorshouldnotbemorethan200℃..8.2 封閉母線微正壓裝置.8.2 Positivepressuredeviceofenclosedbusbar封閉母線的微正壓裝置設(shè)備規(guī)范額定電壓(V)220額定輸入空氣壓力(Pa)300～2000額定充電量(m3/h)35額定頻率(Hz)50EquipmentspecificationsforthepositivepressuredeviceofenclosedbusbarRatedvoltage(V)220Ratedinputairpressure(Pa)300～2000Ratedchargingvolume(m3/h)35Ratedfrequency(Hz)50.8.3 發(fā)電機中性點接地變壓器.8.3 Generatorneturalgroundedtransformer發(fā)電機中性點接地變壓器規(guī)范型式干式、單相額定電壓(KV)24/0.23額定容量(KVA)50變比(KV/KV)24/0.23短時工頻耐壓(KV)70雷電沖擊耐壓(KV)150二次側(cè)電阻(Ω)0.45二次側(cè)電阻熱穩(wěn)定電流(A)300ASpecificationsforthegeneratorneutralgroundedtransformerTypeDrytype,singlephaseRatedvoltage(KV)24/0.23Ratedcapacity(KV)50Transformationratio(KV/KV)24/0.23Short-timepowerfrequencywithstandvoltage(KV)70Lighteningimpulsewithstandvoltage(KV)150Resistanceatthesecondaryside(Ω)0.45Thermalstabilizingcurrentofsecondaryside(A)300A3.1.4 發(fā)-變組繼電保護及同期裝置3.1.4 Generator-TransformerUnitRelayProtectionandSynchronization 發(fā)-變組繼電保護運行維護 OperationandMaintenanceforGenerator-TransformerUnitRelayProtection發(fā)-變組保護采用許繼集團國際工程有限公司提供的WFB-805A微機型發(fā)電機變壓器組成套保護裝置以及WFB-804A微機型發(fā)電機變壓器組非電量保護裝置。被保護設(shè)備包括發(fā)電機、主變壓器、勵磁變、高壓廠用變壓器等。WFB-805Aseriesmicro-processorbasedcompletegenerator-transformerunitprotectiverelayingtogetherwithWFB-804Aseriesmicro-processorbasednon-electricalvariables,whichareprovidedbyXujiinternationalengineeringCo.Ltd,areemployedforGenerator-transformerunitprotection.Theequipmentstobeprotectedincludegenerator,maintransformer,excitationtransformer,HVauxiliarytransformerandsoon.發(fā)電機變壓器組保護采用保護雙重化配置，每套保護包含完整的主保護和后備保護。發(fā)電機變壓器組保護兩套完整的電氣量保護分別布置在保護A、B柜，非電量保護和單套電氣保護布置在保護C柜。Generatortransformerunitprotectionisofdualconfiguration;eachincludescompletemainandbackupprotection.TwosetsofcompleteelectricalprotectionofgeneratortransformerunitprotectionareindividuallyarrangedonprotectiverelayingpanelAandB,non-electricalandsinglesetofelectricalprotectionisarrangedonprotectiverelayingpanelC.發(fā)電機變壓器組保護兩套保護中每套保護的交流電流、交流電壓分別取自電流互感器和電壓互感器獨立的繞組，兩套保護裝置之間沒有任何電氣聯(lián)系。當(dāng)一套保護因異常需要退出或檢修時，不影響另一套保護正常運行。ACcurrentandvoltageofeachofthetwosetsofgeneratortransformerunitprotectionisoriginatedfromtheindependentcurrenttransformerandvoltagetransformer.Thereisnoelectricalconnectionbetweenthetwosetsofprotectionequipments.Whenonesetofprotectionequipmentneedstoexitormaintenanceoutofabnormity,thenormaloperationoftheothersetshouldnotbeinfluenced.非電量保護通過強電電磁繼電器實現(xiàn)。非電量保護的接點送入各自的保護裝置，作為事故記錄。并通過專門跳閘回路輸出跳閘接點和報警信號。每柜的電量保護及非電量保護均設(shè)置各自獨立的電源回路，包括直流小空開及其直流電源監(jiān)視回路。出口跳閘回路完全獨立，在保護柜上的安裝位置也相對獨立。兩套完整的電氣量保護和非電量保護的跳閘回路分別同時動作于斷路器的兩個跳閘線圈。Non-electricalprotectionisaccomplishedbystrongelectromagneticrelay.Contactofnon-electricalprotectionissenttoeachprotectiveloopactingasemergencyrecord.Also,byspecialtripcircuit,thetripcontactandalarmsignalisoutput.Bothelectricalprotectionandnon-electricalprotectionofeachpanelhavetheirownpowersupply,includingDCairswitchanditsDCpowersupplymonitoringcircuit.Theoutlettripcircuitisabsolutelyindependent,sodoesitsinstallationlocationonprotectioncabinet.Thetripcircuitofthecompletetwosetsofelectricalprotectionandnon-electricalprotectionindividuallyexertactiontothetwotripcircuitsofcircuitbreakeratthesametime..1 發(fā)-變組保護A柜、B柜配置完全相同，設(shè)置以下保護（每套保護系統(tǒng)的功能及出口回路設(shè)置有保護投、退的連接片）。.1 ThearrangementofprotectionAand