燃煤蒸汽电厂电气主辅机设备制造厂-电气主机运行手册

SINOMACH–CNEEC–PENTAJOINTOPERATION.1 发-变组运行手册3.1 OperationManualofgenerator-transformerunit3.1.1 范围3.1.1 Scope本运行手册规定了印尼INDRAMAYU3×330MW燃煤电站项目发电机组设备规范、机组启动、正常运行调整及维护、机组停运、事故处理、辅助设备运行操作和机组联锁保护试验等。ThisO&MManualcoverstheequipmentSpecifications,unitstart-up,regulationandmaintenanceduringnormaloperation,unitshutdown,trouble-shooting,operationofauxiliaryEquipandinterlockprotectiontestofINDRAMAYU3×330MWCoal-firedPowerPlant.本运行手册适用于印尼INDRAMAYU3×330MW燃煤电站项目汽轮发电机组设备、系统的运行和事故处理，凡从事该机组运行、检修及管理的人员均应熟悉或掌握本手册的全部或部分内容。Thismanualisonlysuitableforoperation,maintenanceandtrouble-shootingoftheSTGequipment,unit.Thus,anyonethatwilljointheoperation,maintenanceandmanagementofthisunitshouldbefamiliarwiththewholeorpartofthismanual.3.1.2 规范性引用文件3.1.2 SpecifiedReference下列文件中的条款均是中国电力管理的相关文件,通过本手册的引用而成为本手册的条款。Termsinthedocumentsbelow,whicharetherelevantdocumentsofChinesePowerAdministration,havebeenquotedtobesomeitemsofthismanual.《防止电气误操作装置管理规定》 国家电网安监[2006]904号RegulationstoPreventIncorrectElectricalOperations[2006]No.904StateGridSafeProductionSupervisory《防止电气生产重大事故的二十五项重点要求》国家电力公司[2000]25RequirementsforPreventingSevereAccidentsduringPowerGenerationNationalElectricalPowerCorporation[2000]《发电机运行规程》国电发[1999]579号 RegulationonGeneratorOperationNationalElectricalPowerCo.[1999]No.579《汽轮发电机技术条件》SD

270—88TechnicalConditionsofSTGSD

270—88《继电保护及安全自动装置运行管理规程》(82)水电生字第11号RegulationsonOperation&ManagementofRelayProtections&SafeAutomaticDevices(82)HydraulicPowerGenerationNo.11《高压断路器运行规程》电供[1991]30号RegulationonHVCircuitBreakerOperationUtility(1991)No.30《变电站运行导则》DL/T969-2005GuidelineonSub-stationOperationDL/T969-2005《电力变压器运行规程》DL/T572-95RegulationonElectricalTransformerOperationDL/T572-95《电力电缆运行规程》（79）电生字第53号RegulationonElectricalCableOperationPowerGenerationNo.53《电力设备预防性试验规程》DL/T596-1996RegulationonPreventiveTestforElectricalEquipmentDL/T596-1996《电力系统用蓄电池直流电源装置运行及维护技术规程》DL/T724-2000RegulationonTechnologyofO&MofDCPowerDeviceofBatteriesforElectricalSystem《继电保护及安全自动装置运行管理规程》西电调字(1993)7号RegulationsonOperation&ManagementofRelayProtections&AutoSafetyDevicesWesternPowerDispatchNo.7(1993)《微机继电保护装置运行管理规程》DL/T587-96RegulationsonOperation&ManagementofMicro-computerizedRelayProtectionDeviceDL/T587-96《干式电力变压器技术参数和要求》GB/T10228-1997TechnicalParameters&RequirementsofDry-typeElectricalTransformerGB/T10228-1997《干式电力变压器》GB6450-86Dry-typeElectricalTransformerGB6450-86《电业安全工作规程(发电厂和变电所电气部分)》DL408-91PowerIndustrySafetyCode(ElectricalPartofPowerPlant&Sub-station)DL408-913.1.3 概述及技术规范3.1.3 OverviewandTechnicalSpecifications印度尼西亚INDRAMAYU电厂工程位于西爪哇省IndramayuRegency市Sukara区Sumuradem村，位于雅加达以东约180公里。TheIndramayuProjectisconstructedinSumurademvillageofSukaradistrictinthecityofIndramayuRegencyinWesternJavaandislocatedapproximately180kmtotheeastofJakarta.INDRAMAYU电厂安装3×330MW国产亚临界燃煤湿冷发电机组，电厂内设150KV配电装置，出4回线路接入印尼150KV系统。3×330MWsub-criticalcoal-firedwatercoolinggenerationunitsareinstalledinIndramayupowerplantwhere150KVswitchgearisequippedandfouroutgoinglinesareconnectedwiththe150KVsystemofIndonesia.本工程燃用来自Sumatera和Kalimantan的煤炭，驳船运输进厂，厂内设煤码头。ThecoalforthisprojectcomesfromSumateraandKalimantanandistransportedintothecoaljettywithabargeinthepowerplant.冷却系统采用海水直流冷却，冷却水取自爪哇海的海水。厂内设置海水淡化站，以海水淡化后的生水作为生活用水和锅炉补充用水。ThecoolingsystemadoptsseawaterflowcoolingforwhichthewaterisobtainedfromJavaSea.Onewaterdesalinationstationisavailableinthepowerplantandthetreatedwaterisusedastherawwaterfordomesticwaterandwatersupplyofboiler.机组主要承担基本负荷，并具有一定的调峰能力(30%～90%范围)。Theunitsmainlycarrythebasicloadandiscapableofpeakregulationincertainscope(30%～90%).设备日利用小时数：20小时Dailyavailabilityofequipmentinhrs:20h设备年利用小时数：6000小时Annualavailabilityofequipmentinhrs:6000h锅炉为北京巴布科克.威尔科克斯有限公司提供的1050t/h，亚临界压力、一次中间再热、单炉膛、自然循环、平衡通风、固态排渣、前后墙对冲燃烧、汽包型燃煤锅炉，露天布置，全钢构架。Theboilerinuse,whichisprovidedbyBabcock&WilcoxCompany,isdesignedinthisway:itisofsub-criticalpressure,primaryintermediatereheating,singlefurnace,naturalcirculation,balancedventilation,solidslagdischarge,crossfiringbetweenthefrontandrearwall,steamdrumcoal-firedboiler,outdoorarrangementwithawholesteelframework.汽轮机由北京北重汽轮电机有限公司提供的330MW亚临界参数、一次中间再热、单轴三缸双排汽凝汽式汽轮机。型号：N330-17.75/540/540Theturbine,whichisproducedbyBeijingBeizhongSTGCorporation,isof330MWsub-criticalparameters,primaryintermediatereheating.Thiscondensate-typesteamturbineisofprimaryintermediatereheatingandhasonesingleshaft,3casingsanddualexhaust.ItsmodelisN330-17.75/540/540.发电机由北京北重汽轮电机有限公司提供的QFSN-350-2型自并励静止励磁、水-氢-氢冷却的发电机组。TheQFSN-350-2generatorprovidedbyBeijingBeizhongSTGCorporationisofself-shuntstaticexcitationwithH2O-H2-H2cooling. 发-变组及自并励励磁系统概述及技术规范 OverviewandTechnicalSpecificationsforgenerator-transformerunitandSelf-shuntExcitationSystem.1 发电机-变压器组接线概述.1 GeneralDescriptionaboutConnectionofgenerator-transformerunit3台330MW汽轮发电机组，以发电机-变压器组单元接线型式接入厂内150KV配电装置。发电机出线端和中性点端的出线套管各装设4组电流互感器，发电机出线端配置3组电压互感器和1组避雷器，发电机中性点经单相接地变压器二次侧电阻接地。发电机与主变压器之间的连接采用全连式离相封闭母线，高压厂用变压器和励磁变压器由发电机与主变低压侧之间引接。发电机励磁采用静态自并励系统。Three330MWSTGunitsareconnectedwiththe150KVswitchgearinformofgenerator-transformerunit.4CTsareinstalledatthebusbarbushingsonthegeneratoroutgoingsideandneutralpointsiderespectively.3PTsand1groupofsurgearrestersareequippedonthegeneratoroutgoingside.Thegeneratorneutralpointisearthedviaasingletransformerwhosesecondarysideisconnectedwithashuntresistor;oneendoftheresistorisearthed.Inaddition,thegeneratorisconnectedwiththetransformerwithwholeconnectionisolated-phaseenclosedbusbarandtheHVauxiliarytransformeraswellastheexcitationtransformerisconnectedbetweenthegeneratorandthemaintransformer.Theexciteradoptsstaticself-shuntexcitationsystem.150KV配电装置采用采用3/2断路器接线方式，3台发电机组经主变压器升压接入150KV母线。全厂设置2台起动/备用变压器，作为电厂机组起动和备用电源，由150KV配电装置母线引接。设置1台150/20KV城市供电变压器（TFT）由150KV母线引接。150KV系统共有3回发-变组进线，2回起备变出线，1回TFT出线，4回线路出线，组成5个完整串。除过TFT外，所有变压器进线及出线回路均装设三相电压互感器，在150KV母线装设单相电压互感器。The150KVswitchgearadoptstwothirdsCBconnectionandthe3generatorssetaresteppedupby3mainpowertransformersandthenconnectedtothe150KVbusbar.2setofstart-up/standbytransformersareinstalledintheplant,servingasplantstart-upandstandbypowersource,whichareconnectedfromthe150KVbusbar.One150/20KVTFTisequipped,whichisoriginatedfromthe150KVbusbarforthe150KVsystem,therearetotally3in-cominglinesareavailableforgenerator-transformerunit,2outgoinglinesforSST,oneoutgoingforTFTand4outgoinglines.Therefore,5completeincomingandoutgoingloopsareformed.ExcepttheTFT,allthetransformersarefittedwith3-phasePTsforin-comingandoutgoinglines.Additional,singlephasePTsarefittedforthe150KVbusbarsystem.150KV配电装置采用屋外中型布置型式，为了减小配电装置纵向尺寸，加长横向尺寸以利于变压器能够直接架空进线，断路器采用双列布置，每一串的进出线回路占用2个间隔。在母线的两端设置母线接地开关。The150KVswitchgearadoptsoutdoorintermediate-typelayouttodecreasetheverticalsizeandextenttransversesizesothatthetransformercanbedirectlyconnectedwiththeoverheadin-coming.TheCBisarrangedin2columnsandeachbunchofin-comingandoutgoingoccupies2chambers.Foreachbusbar,2earthingdisconnectorsareinstalledonthebothends..2 发电机技术规范.2 TechnicalSpecificationsofGenerator发电机由北京北重汽轮电机有限公司提供的QFSN-350-2型自并励静止励磁、水-氢-氢冷却的发电机组。ThegeneratorprovidedbyBeijingBeizhongSTGCorporationisofself-shuntstaticexcitation,H2O-H2-H2cooling.ItsmodelisQFSN-350-2.型号T255-460（QFSN-350-2型）额定电压24KV电压波动±5％额定功率因数0.85额定功率330MW视在功率388MVA最大连续输出容量347MVA额定电流9339A额定转速3000r／min额定效率98.85％额定励磁电压542V额定励磁电流2495A相数3相极数2极额定频率50Hz稳态负序电流I2/In=12%暂态负序电流（I2/In）2t=10s励磁方式机端自并励定子绕组联接方式Y/Y绝缘等级F级生产厂家有限责任公司北京北重汽轮电机ModelT255-460(QFSN-350-2Type)RatedVoltage24KVVoltageFluctuation±5％RatedPowerFactor0.85RatedPower330MWApparentPower388MVAMax.ContinuousOutput347MVARatedCurrent9339ARatedRotationSpeed3000r／minRatedEfficiency98.85％RatedExcitationVoltage542VRatedExcitationCurrent2495A2495ANumberofPhases3NumberofPoles2RatedFrequency50HzStableNegativeSequenceCurrentI2/In=12%TransientNegativeSequenceCurrent（I2/In）2t=10sExcitationModeSelf-shuntExcitationfromGeneratorSideStatorWindingConnectionTypeY/YInsulationLevelFManufacturerBeijingBeizhongSTGCorporation.3 发电机冷却系统规范.3 TechnicalSpecificationsforGeneratorCoolingSystem发电机采用水-氢-氢的冷却方式，发电机定子绕组采用水内冷，转子绕组与定子铁芯采用氢气冷却方式。发电机内部为密闭循环通风系统，氢气由外部氢系统供给，并经发电机两侧的四个氢气冷却器冷却。定子线圈的冷却水由外部独立循环的内冷水系统供给。ThegeneratoradoptsH2O-H2-H2coolingmodewhichmeansthestatorwindingsarecooledbyinternalwater,therotorwindingandstatorcorearecooledbyH2.TheinsideofthegeneratorisonesealedcirculationventilationsystemandH2,whichiscooledbythe4coolersatbothendsofthegenerator,isfilledintothegeneratorbytheexternalH2system.Inaddition,thestatorwindingcoolingwatercomesfromtheindependentexternalcirculativeinternalcoolingwatersystem..3.1 定子绕组的冷却.3.1 CoolingofStatorWindings冷却方式直接冷却冷却介质除盐水定子绕组水流量60m3/h出线端子水流量9m3/h定子绕组进口水温<45℃定子绕组出口水温<60℃定冷水导电率<0.5ms/cm定冷水PH值7～8定冷水硬度<2×10-3mol/m3定冷水机械杂质<5mm定冷水冷却器台数4冷却器冷却水流量120t/h冷却器冷却水入口温度正常20℃最高33℃冷却器冷却水出口温度正常28.7℃最高41.7℃CoolingModeDirectCoolingCoolingMediumDemineralizedWaterWaterFlowinStatorWinding60m3/hWaterFlowatOutletEnd9m3/hInletWaterTemp.ofStatorWinding<45℃OutletWaterTemp.ofStatorWinding<60℃ConductivityofStatorCoolingWater<0.5ms/cmPHofStatorCoolingWater7～8HardnessofStatorCoolingWater<2×10-3mol/m3MechanicalImpurityofStatorCoolingWater<5mmQuantityofStatorCoolers4WaterFlowofStatorCooler120t/hInletWaterTemp.ofCooler20℃asnormal33℃asMax.OutletWaterTemp.ofCooler20℃asnormal33℃asMax..3.2 定子铁芯和转子绕组的冷却.3.2 CoolingofStatorCoreandRotorWinding冷却方式表面冷却冷却介质H2氢气压力0.3MPa氢气纯度98%氢气流量36m3/h氢冷器数量4布置方式轴向冷却器冷却水流量325t/h总冷却面积736m2冷却器冷却水额定温度26.7℃冷却器冷却水最高温度39.7℃水室压降0.05Mpa(0.5bar)冷氢温度30℃(水温20℃)43℃(水温33℃)热氢温度44℃(20℃)57℃(水温33℃)CoolingModeSurfaceCoolingCoolingMediumH2H2Pressure0.3MPaH2Purity98%H2Flow36m3/hQuantityofH2Coolers4LayoutAxialWaterFlowinCooler325t/hTotalCoolingArea736m2RatedTemp.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 励磁系统概述及其技术规范.4 Overview&TechnicalSpecificationsofExcitationSystem#1、#2、#3发电机组励磁系统均采用自并励静止励磁系统，通过励磁变压器从发电机机端取得励磁电源，为高起始快速响应系统。随发电机配套体提供励磁设备，主要技术指标为：Staticself-shuntexcitationsystemisusedforunit#1,#2and#3.Inthissystem,excitationpowerisobtainedfromthegeneratoroutputviaoneexcitationtransformeranditisonequickrespondingsystemwithhighinitiation.Theexcitationequipmentisprovidedwiththegeneratorasawholeset.Theparametersareshownasfollows:顶值电压倍数：≥2.0强励时间：≥20s响应时间：≤0.1s(高起始响应)PeakVoltageMultiple:≥2.0ForcedExcitationDuration:≥20sResponsetime:≤0.1s(HighInitiationResponse)励磁系统主要由励磁变压器、励磁整流柜、磁场开关柜、发电机起励和励磁调节器柜等装置，以及监测、保护、报警辅助装置组成。Theexcitationsystemconsistsofoneexcitationtransformer,anexcitationrectifierpanel,amagneticfieldCBpanel,oneAVRpanelaswellasdevicessuchasmonitor,protectionsandalarms..4.1 励磁变压器.4.1 ExcitationTransformer励磁变压器采用励磁系统配套干式变压器，能满足机组正常运行及强励时的需要。满足发电机做空载、短路试验的需要，参数如下：Onedry-typetransformer,whichisprovidedwiththeexcitationsystemasawholeset,isusedastheexcitationtransformertomeetthedemandofnormalunitoperationandforcedexcitation.Also,needsofno-loadtestandshort-circuittestcanbesatisfied.Parametersofthistransformerarelistedasfollows:型式单相干式变压器组容量4313KVA满载二次侧电流3000A满载二次侧电压900V额定电压24／0.9KV频率50Hz联结方式Y,d11阻抗8.14％冷却方式自然风冷/强迫风冷TypeSinglePhaseDry-typeTransformerCapacity4313KVAFull-loadCurrentonSecondarySide3000AFull-loadVoltageonSecondarySide900VRatedVoltage24／0.9KVFrequency50HzConnectionmodelsY,d11Impedance8.14％CoolingModeNatural/ForcedAirCooling.4.2 励磁整流柜.4.2 RectifierPanelforExcitation可控硅整流装置并联可控硅元件有1/4并联支路退出运行时能满足发电机强励要求，有1/2并联支路退出运行时能保证发电机在额定工况下连续运行。If1/4oftheparallelthyristorelementsoftherectifierareoutofoperation,thedemandforforcedexcitationcanstillbesatisfied;if1/2oftheparallelthyristorelementsareoutofoperation,thegeneratorcanoperateundertheratedworkingconditioncontinuously.整流柜采用强迫风冷，采用可靠的低噪声风机，留有100%的备用容量，在风压或风量不足时备用风机能自动投入。提供2路冷却风机电源，2路电源能够自动切换。Therectifierpaneladoptsforcedaircoolingmodeandonereliablelownoiseairfanwith100%ofsparecapacityandthebackupairfancanstartupautomatically.Besides,twopowersupplieswhichcanbeswitchedovertotheotherautomaticallyareavailableforthecoolingfans..4.3 磁场开关柜.4.3 MagneticFieldCBPanel发电机灭磁采用逆变和灭磁开关（直流式）两种方式。并设有转子过压保护装置。Thegeneratorde-excitationadoptstheinversionmodeandde-excitationCB(DC)mode.Moreover,onerotorovervoltageprotectiondeviceisinstalled..4.4 发电机起励.4.4 InitialExcitationofGenerator起励电源容量满足发电机建压大于10%额定电压的要求。起励成功后或失败时，起励回路均能自动退出。起励电源采用交流。Theinitialexcitationpowershouldhelpthegeneratorestablishavoltageofmorethan10%oftheratedvalue.Whenevertheinitialexcitationisfinishedorhasfailed,theinitialexcitationcircuitshouldbeoutofoperationautomatically.TheinitialpoweradoptsACpower..4.5 励磁调节器（AVR）柜.4.5 AVRPanel励磁调节器（AVR）采用广州擎天电气控制实业有限公司生产的EXC9000型微机励磁调节器。TheadoptedmicrocomputerAVRofwhichthemodelisEXC9000isprovidedbyElectricalControlSub-companyofGuangzhouKinteIndustryCo.,Ltd.AVR采用微机/微机/模拟三通道双模冗余结构，由两个自动电压调节通道（A、B）和一个手动调节通道（C）组成，这三个通道从测量回路到脉冲输出回路完全独立。调节通道以主从方式工作，其中一个自动电压调节通道作为主通道，另一个自动电压调节通道作为第一备用通道，手动调节通道作为第二备用通道。各备用通道可自动跟踪，保证无扰动切换。设置AVR与DCS接口，实现控制室内对AVR的远方控制。调节器通道组合比较灵活，共计有三通道、双微机、微机/模拟、自动/手动等四种组合。TheAVRadoptsthestructureofmicrocomputer/microcomputer/analogue3-channel2-moduleredundancy.The3channelsarecomposedby2autovoltageregulationchannels(A,B)andonemanualregulationchannel(C)andthosethreechannelshavetheirindependentmeasurementcircuitandpulseoutputcircuit.Theregulationchanneloperatesinthemain-bypassmodewhichmeansoneofthemworksasthemainchannel,theotheroneasthefirstbackupchannelandthemanualregulationchannelasthesecondbackupchannel.What’smore,eachchanneliscapableofautomatictracingtoensureswitchoverwithoutdisturbance.OneinterfacebetweenAVRandDCSisavailablewhichcanactualizeremotecontrolforAVRincontrolcentre.OnemorecharacteristicforAVRisthatthecombinationofchannelsisflexibleandtotally4combinationsareavailablewhichare3channels,dualmicrocomputer,microcomputer/analogue,auto/manual.运行方式：恒发电机机端电压的自动调节功能、恒发电机转子电流的手动调节功能、叠加的恒无功调节、叠加的恒功率因数调节。我们经常采用的运行方式为恒发电机机端电压的自动调节方式.Operationmode:constantautoregulationofgeneratoroutputvoltage,constantmanualregulationofgeneratorrotorcurrent,superposedconstantreactivepowerregulationandsuperposedconstantpowerfactorregulation.Theoperationmodeweusuallyuseisconstantautoregulationofgeneratoroutputvoltage.起励控制：采用快速脉冲列技术以实现残压起励。在起励过程中，在可控硅整流器的输入端仅需要约10V～20V的电压即可正常工作。如果电压低于10V～20V，可控硅整流器就会被连续地触发（二极管工作模式）以达到该值。然而，如果在5秒内残压起励失败，则起动备用起励回路。这个备用回路设计用于达到所需要的10V～20V电压。在机端电压达到发电机电压的10%时，备用起励回路自动退出，立即开始软起励过程并建压到预定的电压水平。整个起励过程和顺序控制是通过调节器实现的。备用起励回路为模块化结构，包括空气开关、起励接触器、导向二极管、限流电阻。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 励磁装置的限制功能.4.6 LimitationFunctionsofExcitationDevice:V/F限制；V/FLimitation过励限制；Over-excitationLimitation欠励限制；Under-excitationLimitation定子电流限制；StatorCurrentLimitation最大磁场电流限制；Max.MagneticFieldCurrentLimitation最小磁场电流限制。Min.MagneticFieldCurrentLimitationP/Q限制器P/QLimiter电力系统稳定器（PSS功能）PowerSystemStabilizer(PSSfunction).4.7 励磁装置的监测功能.4.7 MonitoringFunctionofExcitationDevicePT断线；PTWirebreak电源故障；PowerSupplyFault调节器软件故障；SoftwareFaultofAVR调节器硬件故障；HardwareFaultofAVR脉冲故障；PulseFault整流桥故障报警；AlarmforRectificationBridgeFault转子过热报警；AlarmforRotorOverheating励磁变超温报警；AlarmforOver-temperatureofExcitationTransformer通讯故障报警。CommunicationFaultAlarm.4.8 励磁装置的保护功能.4.8 ProtectiveFunctionforExcitationDeviceV/f保护；V/FProtection整流桥内部短路跳闸；RectificationBridgeInternalShort-circuitedtrip整流桥过载跳闸；RectificationBridgeOverloadTrip转子过热跳闸；RotorOverheatTrip转子接地跳闸；GroundedRotortrip转子过电压跳闸；RotorOver-voltageTrip转子过流保护；RotorOvercurrentTrip失磁保护；ExcitationLossProtection励磁变过流保护；ExcitationTransformerOver-CurrentProtection励磁变超温跳闸ExcitationTransformerOverheatingTrip.交流侧过电压保护Over-voltageProtectiononACSide直流侧过电压保护Over-voltageProtectiononDCSide.4.9 励磁装置的其它功能.4.9 OtherFunctionsofAVR软起励；SoftInitialExcitation残压起励；ResidualVoltageInitialExcitation有功和无功补偿；CompensationforActiveandReactivePower系统电压跟踪；NetworkVoltageTracing通道之间自动跟踪；AutoTracingbetweenChannels故障智能检测和自动切换；IntelligentFaultDetectionandAutoSwitchover容错控制；ToleranceControl故障录波和故障记录；FaultOscillographandRecording辅助调试和试验功能；CommissioningandTesting智能均流、智能封脉冲。IntelligentCurrentEqualizingandIntelligentPulseBlocking.5 主变压器技术规范.5 TechnicalSpecificationsofMainTransformer型号SFP—400000/150额定容量400MVA额定电压150±2×2.5%/24KV额定电流1540A/9623A连接组别Yn，d11相数三相额定频率50Hz冷却方式强迫油循环风冷空载损耗№1主变193.91kW№2主变197.38kW№3主变197.38kW阻抗电压№1主变14%№2主变14%№3主变14%空载电流№1主变0.17%№2主变0.19%№3主变0.17%负载损耗№1主变833.57kW№2主变839.59kW№3主变833.57kW调压方式无载调压油面温升55K中性点接地方式直接接地生产厂家保定天威保变电气股份有限公司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 厂用高压变压器技术规范.6 TechnicalSpecificationsofAuxiliaryHVTransformer型号SFF-CY-40000/24TH额定容量40/25-25MVA额定电压24±2×2.5%/6.3-6.3KV额定频率50Hz额定电流962.3/2291.1-2291.1A相数三相空载电流№1厂高变0.19%№2厂高变0.26%№3厂高变0.19%半穿越阻抗电压№1厂高变17.0%、16.9%№2厂高变17.1%、16.7%№3厂高变17.0%、16.9%冷却方式自然油循环风冷ONAN/ONAF温升极限绕组60K顶层油温50K调压方式无载调压连接组别D,yn1-yn1空载损耗№1厂高变29.6kW№2厂高变33.1kW№3厂高变29.6kW负载损耗№1厂高变280.2kW№2厂高变198.5kW№3厂高变280.2kW中性点接地方式经18.18Ω中值电阻接地生产厂家特变电工衡阳变压器有限公司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 启动／备用变技术规范:.7 TechnicalSpecificationsofSST型号SFZ-31500/150额定容量31500KVA额定电压150±8×1.25%/6.3KV额定电流121.24/2886.75A接线组别Yn，yn+d调压方式有载调压相数三相额定频率50Hz冷却方式ONAN/ONAF负载损耗310kW空载损耗96.9kW阻抗电压14%接地方式高压侧直接接地低压侧经18.18Ω中值电阻接地生产厂家特变电工衡阳变压器有限公司ModelSFZ-31500/150RatedCapacity31500KVARatedVoltage150±8×1.25%/6.3KVRatedCurrent121.24/2886.75AConnectionmodeYn，yn+dVoltageadjustingmodeVoltageadjustingwithloadNumberofPhases3RatedFrequency50HzCoolingModeONAN/ONAFOn-loadloss310kWNo-loadloss96.9kWImpedanceVoltage14%EarthingModeDirectlyEarthedonHVsideViaOneIntermediateResistorof18.18ΩonLVsideManufacturerTBEC.8 发-变组附属设备技术规范.8 Technicalspecificationsfortheauxiliaryequipmentofgenerator-transformerunit.8.1 离相式封闭母线技术规范.8.1 Technicalspecificationsforphase-segregatedenclosedbusbar封闭母线基本技术参数基本技术参数主回路分支回路额定电压(KV)2424设备最高电压(KV)27.627.6额定电流(kA)12.51.6额定频率(Hz)5050短时工频耐受电压(KV)(有效值)150150雷电冲击耐受电压(KV)(峰值)7070动稳定电流(kA)2003152S热稳定电流(kA)80125泄漏比距(mm/KV)3131母线外径及厚度(mm)φ500×12φ500×10外壳外径厚度(mm)φ1050×8φ700×5相间距离(mm)1300厂高变分支1000PT分支1000生产厂家江苏大全封闭母线有限公司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.封闭母线最热点温度和温升允许值封闭母线的部件允许温度允许温升铝导线90℃45K螺栓紧固连接镀银接触面105℃60K铝外壳70℃25K在4s热稳定电流的作用下，铝与铝合金导体的短时发热温度不应超过200℃。MaximumtemperatureandtemperaturepermittingvaluefortheenclosedbusbarEnclosedbusbarcomponentsAllowabletemp.riseAllowabletemp.riseAluminumconductor90℃45KSilverplatinginterfaceforbolttighteningandconnecting105℃60KAluminumcasing70℃25KUnderthefunctionof4S-thermalstabilizingcurrent,short-timeheatingtemperatureofaluminumandaluminumalloyconductorshouldnotbemorethan200℃..8.2 封闭母线微正压装置.8.2 Positivepressuredeviceofenclosedbusbar封闭母线的微正压装置设备规范额定电压(V)220额定输入空气压力(Pa)300～2000额定充电量(m3/h)35额定频率(Hz)50EquipmentspecificationsforthepositivepressuredeviceofenclosedbusbarRatedvoltage(V)220Ratedinputairpressure(Pa)300～2000Ratedchargingvolume(m3/h)35Ratedfrequency(Hz)50.8.3 发电机中性点接地变压器.8.3 Generatorneturalgroundedtransformer发电机中性点接地变压器规范型式干式、单相额定电压(KV)24/0.23额定容量(KVA)50变比(KV/KV)24/0.23短时工频耐压(KV)70雷电冲击耐压(KV)150二次侧电阻(Ω)0.45二次侧电阻热稳定电流(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 发-变组继电保护及同期装置3.1.4 Generator-TransformerUnitRelayProtectionandSynchronization 发-变组继电保护运行维护 OperationandMaintenanceforGenerator-TransformerUnitRelayProtection发-变组保护采用许继集团国际工程有限公司提供的WFB-805A微机型发电机变压器组成套保护装置以及WFB-804A微机型发电机变压器组非电量保护装置。被保护设备包括发电机、主变压器、励磁变、高压厂用变压器等。WFB-805Aseriesmicro-processorbasedcompletegenerator-transformerunitprotectiverelayingtogetherwithWFB-804Aseriesmicro-processorbasednon-electricalvariables,whichareprovidedbyXujiinternationalengineeringCo.Ltd,areemployedforGenerator-transformerunitprotection.Theequipmentstobeprotectedincludegenerator,maintransformer,excitationtransformer,HVauxiliarytransformerandsoon.发电机变压器组保护采用保护双重化配置，每套保护包含完整的主保护和后备保护。发电机变压器组保护两套完整的电气量保护分别布置在保护A、B柜，非电量保护和单套电气保护布置在保护C柜。Generatortransformerunitprotectionisofdualconfiguration;eachincludescompletemainandbackupprotection.TwosetsofcompleteelectricalprotectionofgeneratortransformerunitprotectionareindividuallyarrangedonprotectiverelayingpanelAandB,non-electricalandsinglesetofelectricalprotectionisarrangedonprotectiverelayingpanelC.发电机变压器组保护两套保护中每套保护的交流电流、交流电压分别取自电流互感器和电压互感器独立的绕组，两套保护装置之间没有任何电气联系。当一套保护因异常需要退出或检修时，不影响另一套保护正常运行。ACcurrentandvoltageofeachofthetwosetsofgeneratortransformerunitprotectionisoriginatedfromtheindependentcurrenttransformerandvoltagetransformer.Thereisnoelectricalconnectionbetweenthetwosetsofprotectionequipments.Whenonesetofprotectionequipmentneedstoexitormaintenanceoutofabnormity,thenormaloperationoftheothersetshouldnotbeinfluenced.非电量保护通过强电电磁继电器实现。非电量保护的接点送入各自的保护装置，作为事故记录。并通过专门跳闸回路输出跳闸接点和报警信号。每柜的电量保护及非电量保护均设置各自独立的电源回路，包括直流小空开及其直流电源监视回路。出口跳闸回路完全独立，在保护柜上的安装位置也相对独立。两套完整的电气量保护和非电量保护的跳闸回路分别同时动作于断路器的两个跳闸线圈。Non-electricalprotectionisaccomplishedbystrongelectromagneticrelay.Contactofnon-electricalprotectionissenttoeachprotectiveloopactingasemergencyrecord.Also,byspecialtripcircuit,thetripcontactandalarmsignalisoutput.Bothelectricalprotectionandnon-electricalprotectionofeachpanelhavetheirownpowersupply,includingDCairswitchanditsDCpowersupplymonitoringcircuit.Theoutlettripcircuitisabsolutelyindependent,sodoesitsinstallationlocationonprotectioncabinet.Thetripcircuitofthecompletetwosetsofelectricalprotectionandnon-electricalprotectionindividuallyexertactiontothetwotripcircuitsofcircuitbreakeratthesametime..1 发-变组保护A柜、B柜配置完全相同，设置以下保护（每套保护系统的功能及出口回路设置有保护投、退的连接片）。.1 ThearrangementofprotectionAandBforgenerator-transformerunitarecompletelythesame.Thefollowingprotectionsarearranged(thelinksarefittedforeachprotectionfunctionscircuitandoutletcircuitforin/outservice.)发电机差动保护Generatordifferentialpro