燃煤蒸汽電廠電氣主輔機(jī)設(shè)備制造廠-電氣主機(jī)運(yùn)行手冊(cè)

SINOMACH–CNEEC–PENTAJOINTOPERATION.1 發(fā)-變組運(yùn)行手冊(cè)3.1 OperationManualofgenerator-transformerunit3.1.1 范圍3.1.1 Scope本運(yùn)行手冊(cè)規(guī)定了印尼INDRAMAYU3×330MW燃煤電站項(xiàng)目發(fā)電機(jī)組設(shè)備規(guī)范、機(jī)組啟動(dòng)、正常運(yùn)行調(diào)整及維護(hù)、機(jī)組停運(yùn)、事故處理、輔助設(shè)備運(yùn)行操作和機(jī)組聯(lián)鎖保護(hù)試驗(yàn)等。ThisO&MManualcoverstheequipmentSpecifications,unitstart-up,regulationandmaintenanceduringnormaloperation,unitshutdown,trouble-shooting,operationofauxiliaryEquipandinterlockprotectiontestofINDRAMAYU3×330MWCoal-firedPowerPlant.本運(yùn)行手冊(cè)適用于印尼INDRAMAYU3×330MW燃煤電站項(xiàng)目汽輪發(fā)電機(jī)組設(shè)備、系統(tǒng)的運(yùn)行和事故處理，凡從事該機(jī)組運(yùn)行、檢修及管理的人員均應(yīng)熟悉或掌握本手冊(cè)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(cè)的引用而成為本手冊(cè)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(hào)RegulationstoPreventIncorrectElectricalOperations[2006]No.904StateGridSafeProductionSupervisory《防止電氣生產(chǎn)重大事故的二十五項(xiàng)重點(diǎn)要求》國家電力公司[2000]25RequirementsforPreventingSevereAccidentsduringPowerGenerationNationalElectricalPowerCorporation[2000]《發(fā)電機(jī)運(yùn)行規(guī)程》國電發(fā)[1999]579號(hào) RegulationonGeneratorOperationNationalElectricalPowerCo.[1999]No.579《汽輪發(fā)電機(jī)技術(shù)條件》SD

270—88TechnicalConditionsofSTGSD

270—88《繼電保護(hù)及安全自動(dòng)裝置運(yùn)行管理規(guī)程》(82)水電生字第11號(hào)RegulationsonOperation&ManagementofRelayProtections&SafeAutomaticDevices(82)HydraulicPowerGenerationNo.11《高壓斷路器運(yùn)行規(guī)程》電供[1991]30號(hào)RegulationonHVCircuitBreakerOperationUtility(1991)No.30《變電站運(yùn)行導(dǎo)則》DL/T969-2005GuidelineonSub-stationOperationDL/T969-2005《電力變壓器運(yùn)行規(guī)程》DL/T572-95RegulationonElectricalTransformerOperationDL/T572-95《電力電纜運(yùn)行規(guī)程》（79）電生字第53號(hào)RegulationonElectricalCableOperationPowerGenerationNo.53《電力設(shè)備預(yù)防性試驗(yàn)規(guī)程》DL/T596-1996RegulationonPreventiveTestforElectricalEquipmentDL/T596-1996《電力系統(tǒng)用蓄電池直流電源裝置運(yùn)行及維護(hù)技術(shù)規(guī)程》DL/T724-2000RegulationonTechnologyofO&MofDCPowerDeviceofBatteriesforElectricalSystem《繼電保護(hù)及安全自動(dòng)裝置運(yùn)行管理規(guī)程》西電調(diào)字(1993)7號(hào)RegulationsonOperation&ManagementofRelayProtections&AutoSafetyDevicesWesternPowerDispatchNo.7(1993)《微機(jī)繼電保護(hù)裝置運(yùn)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(dá)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(jī)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(yùn)輸進(jìn)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(bǔ)充用水。ThecoolingsystemadoptsseawaterflowcoolingforwhichthewaterisobtainedfromJavaSea.Onewaterdesalinationstationisavailableinthepowerplantandthetreatedwaterisusedastherawwaterfordomesticwaterandwatersupplyofboiler.機(jī)組主要承擔(dān)基本負(fù)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(shí)數(shù)：20小時(shí)Dailyavailabilityofequipmentinhrs:20h設(shè)備年利用小時(shí)數(shù)：6000小時(shí)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(duì)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(jī)由北京北重汽輪電機(jī)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(jī)。型號(hào)：N330-17.75/540/540Theturbine,whichisproducedbyBeijingBeizhongSTGCorporation,isof330MWsub-criticalparameters,primaryintermediatereheating.Thiscondensate-typesteamturbineisofprimaryintermediatereheatingandhasonesingleshaft,3casingsanddualexhaust.ItsmodelisN330-17.75/540/540.發(fā)電機(jī)由北京北重汽輪電機(jī)有限公司提供的QFSN-350-2型自并勵(lì)靜止勵(lì)磁、水-氫-氫冷卻的發(fā)電機(jī)組。TheQFSN-350-2generatorprovidedbyBeijingBeizhongSTGCorporationisofself-shuntstaticexcitationwithH2O-H2-H2cooling. 發(fā)-變組及自并勵(lì)勵(lì)磁系統(tǒng)概述及技術(shù)規(guī)范 OverviewandTechnicalSpecificationsforgenerator-transformerunitandSelf-shuntExcitationSystem.1 發(fā)電機(jī)-變壓器組接線概述.1 GeneralDescriptionaboutConnectionofgenerator-transformerunit3臺(tái)330MW汽輪發(fā)電機(jī)組，以發(fā)電機(jī)-變壓器組單元接線型式接入廠內(nèi)150KV配電裝置。發(fā)電機(jī)出線端和中性點(diǎn)端的出線套管各裝設(shè)4組電流互感器，發(fā)電機(jī)出線端配置3組電壓互感器和1組避雷器，發(fā)電機(jī)中性點(diǎn)經(jīng)單相接地變壓器二次側(cè)電阻接地。發(fā)電機(jī)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(lì)磁變壓器由發(fā)電機(jī)與主變低壓側(cè)之間引接。發(fā)電機(jī)勵(lì)磁采用靜態(tài)自并勵(lì)系統(tǒng)。Three330MWSTGunitsareconnectedwiththe150KVswitchgearinformofgenerator-transformerunit.4CTsareinstalledatthebusbarbushingsonthegeneratoroutgoingsideandneutralpointsiderespectively.3PTsand1groupofsurgearrestersareequippedonthegeneratoroutgoingside.Thegeneratorneutralpointisearthedviaasingletransformerwhosesecondarysideisconnectedwithashuntresistor;oneendoftheresistorisearthed.Inaddition,thegeneratorisconnectedwiththetransformerwithwholeconnectionisolated-phaseenclosedbusbarandtheHVauxiliarytransformeraswellastheexcitationtransformerisconnectedbetweenthegeneratorandthemaintransformer.Theexciteradoptsstaticself-shuntexcitationsystem.150KV配電裝置采用采用3/2斷路器接線方式，3臺(tái)發(fā)電機(jī)組經(jīng)主變壓器升壓接入150KV母線。全廠設(shè)置2臺(tái)起動(dòng)/備用變壓器，作為電廠機(jī)組起動(dòng)和備用電源，由150KV配電裝置母線引接。設(shè)置1臺(tái)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(jìn)線，2回起備變出線，1回TFT出線，4回線路出線，組成5個(gè)完整串。除過TFT外，所有變壓器進(jìn)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(jìn)線，斷路器采用雙列布置，每一串的進(jìn)出線回路占用2個(gè)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(jī)技術(shù)規(guī)范.2 TechnicalSpecificationsofGenerator發(fā)電機(jī)由北京北重汽輪電機(jī)有限公司提供的QFSN-350-2型自并勵(lì)靜止勵(lì)磁、水-氫-氫冷卻的發(fā)電機(jī)組。ThegeneratorprovidedbyBeijingBeizhongSTGCorporationisofself-shuntstaticexcitation,H2O-H2-H2cooling.ItsmodelisQFSN-350-2.型號(hào)T255-460（QFSN-350-2型）額定電壓24KV電壓波動(dòng)±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(lì)磁電壓542V額定勵(lì)磁電流2495A相數(shù)3相極數(shù)2極額定頻率50Hz穩(wěn)態(tài)負(fù)序電流I2/In=12%暫態(tài)負(fù)序電流（I2/In）2t=10s勵(lì)磁方式機(jī)端自并勵(lì)定子繞組聯(lián)接方式Y(jié)/Y絕緣等級(jí)F級(jí)生產(chǎn)廠家有限責(zé)任公司北京北重汽輪電機(jī)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(jī)冷卻系統(tǒng)規(guī)范.3 TechnicalSpecificationsforGeneratorCoolingSystem發(fā)電機(jī)采用水-氫-氫的冷卻方式，發(fā)電機(jī)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(jī)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(jī)兩側(cè)的四個(gè)氫氣冷卻器冷卻。定子線圈的冷卻水由外部獨(dú)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/h出線端子水流量9m3/h定子繞組進(jìn)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(jī)械雜質(zhì)<5mm定冷水冷卻器臺(tái)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℃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/h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736m2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%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 勵(lì)磁系統(tǒng)概述及其技術(shù)規(guī)范.4 Overview&TechnicalSpecificationsofExcitationSystem#1、#2、#3發(fā)電機(jī)組勵(lì)磁系統(tǒng)均采用自并勵(lì)靜止勵(lì)磁系統(tǒng)，通過勵(lì)磁變壓器從發(fā)電機(jī)機(jī)端取得勵(lì)磁電源，為高起始快速響應(yīng)系統(tǒng)。隨發(fā)電機(jī)配套體提供勵(lì)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(qiáng)勵(lì)時(shí)間：≥20s響應(yīng)時(shí)間：≤0.1s(高起始響應(yīng))PeakVoltageMultiple:≥2.0ForcedExcitationDuration:≥20sResponsetime:≤0.1s(HighInitiationResponse)勵(lì)磁系統(tǒng)主要由勵(lì)磁變壓器、勵(lì)磁整流柜、磁場(chǎng)開關(guān)柜、發(fā)電機(jī)起勵(lì)和勵(lì)磁調(diào)節(jié)器柜等裝置，以及監(jiān)測(cè)、保護(hù)、報(bào)警輔助裝置組成。Theexcitationsystemconsistsofoneexcitationtransformer,anexcitationrectifierpanel,amagneticfieldCBpanel,oneAVRpanelaswellasdevicessuchasmonitor,protectionsandalarms..4.1 勵(lì)磁變壓器.4.1 ExcitationTransformer勵(lì)磁變壓器采用勵(lì)磁系統(tǒng)配套干式變壓器，能滿足機(jī)組正常運(yùn)行及強(qiáng)勵(lì)時(shí)的需要。滿足發(fā)電機(jī)做空載、短路試驗(yàn)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(qiáng)迫風(fēng)冷TypeSinglePhaseDry-typeTransformerCapacity4313KVAFull-loadCurrentonSecondarySide3000AFull-loadVoltageonSecondarySide900VRatedVoltage24／0.9KVFrequency50HzConnectionmodelsY,d11Impedance8.14％CoolingModeNatural/ForcedAirCooling.4.2 勵(lì)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(yùn)行時(shí)能滿足發(fā)電機(jī)強(qiáng)勵(lì)要求，有1/2并聯(lián)支路退出運(yùn)行時(shí)能保證發(fā)電機(jī)在額定工況下連續(xù)運(yùn)行。If1/4oftheparallelthyristorelementsoftherectifierareoutofoperation,thedemandforforcedexcitationcanstillbesatisfied;if1/2oftheparallelthyristorelementsareoutofoperation,thegeneratorcanoperateundertheratedworkingconditioncontinuously.整流柜采用強(qiáng)迫風(fēng)冷，采用可靠的低噪聲風(fēng)機(jī)，留有100%的備用容量，在風(fēng)壓或風(fēng)量不足時(shí)備用風(fēng)機(jī)能自動(dòng)投入。提供2路冷卻風(fēng)機(jī)電源，2路電源能夠自動(dòng)切換。Therectifierpaneladoptsforcedaircoolingmodeandonereliablelownoiseairfanwith100%ofsparecapacityandthebackupairfancanstartupautomatically.Besides,twopowersupplieswhichcanbeswitchedovertotheotherautomaticallyareavailableforthecoolingfans..4.3 磁場(chǎng)開關(guān)柜.4.3 MagneticFieldCBPanel發(fā)電機(jī)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(hù)裝置。Thegeneratorde-excitationadoptstheinversionmodeandde-excitationCB(DC)mode.Moreover,onerotorovervoltageprotectiondeviceisinstalled..4.4 發(fā)電機(jī)起勵(lì).4.4 InitialExcitationofGenerator起勵(lì)電源容量滿足發(fā)電機(jī)建壓大于10%額定電壓的要求。起勵(lì)成功后或失敗時(shí)，起勵(lì)回路均能自動(dòng)退出。起勵(lì)電源采用交流。Theinitialexcitationpowershouldhelpthegeneratorestablishavoltageofmorethan10%oftheratedvalue.Whenevertheinitialexcitationisfinishedorhasfailed,theinitialexcitationcircuitshouldbeoutofoperationautomatically.TheinitialpoweradoptsACpower..4.5 勵(lì)磁調(diào)節(jié)器（AVR）柜.4.5 AVRPanel勵(lì)磁調(diào)節(jié)器（AVR）采用廣州擎天電氣控制實(shí)業(yè)有限公司生產(chǎn)的EXC9000型微機(jī)勵(lì)磁調(diào)節(jié)器。TheadoptedmicrocomputerAVRofwhichthemodelisEXC9000isprovidedbyElectricalControlSub-companyofGuangzhouKinteIndustryCo.,Ltd.AVR采用微機(jī)/微機(jī)/模擬三通道雙模冗余結(jié)構(gòu)，由兩個(gè)自動(dòng)電壓調(diào)節(jié)通道（A、B）和一個(gè)手動(dòng)調(diào)節(jié)通道（C）組成，這三個(gè)通道從測(cè)量回路到脈沖輸出回路完全獨(dú)立。調(diào)節(jié)通道以主從方式工作，其中一個(gè)自動(dòng)電壓調(diào)節(jié)通道作為主通道，另一個(gè)自動(dòng)電壓調(diào)節(jié)通道作為第一備用通道，手動(dòng)調(diào)節(jié)通道作為第二備用通道。各備用通道可自動(dòng)跟蹤，保證無擾動(dòng)切換。設(shè)置AVR與DCS接口，實(shí)現(xiàn)控制室內(nèi)對(duì)AVR的遠(yuǎn)方控制。調(diào)節(jié)器通道組合比較靈活，共計(jì)有三通道、雙微機(jī)、微機(jī)/模擬、自動(dòng)/手動(dòng)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(yùn)行方式：恒發(fā)電機(jī)機(jī)端電壓的自動(dòng)調(diào)節(jié)功能、恒發(fā)電機(jī)轉(zhuǎn)子電流的手動(dòng)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(yùn)行方式為恒發(fā)電機(jī)機(jī)端電壓的自動(dòng)調(diào)節(jié)方式.Operationmode:constantautoregulationofgeneratoroutputvoltage,constantmanualregulationofgeneratorrotorcurrent,superposedconstantreactivepowerregulationandsuperposedconstantpowerfactorregulation.Theoperationmodeweusuallyuseisconstantautoregulationofgeneratoroutputvoltage.起勵(lì)控制：采用快速脈沖列技術(shù)以實(shí)現(xiàn)殘壓起勵(lì)。在起勵(lì)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(huì)被連續(xù)地觸發(fā)（二極管工作模式）以達(dá)到該值。然而，如果在5秒內(nèi)殘壓起勵(lì)失敗，則起動(dòng)備用起勵(lì)回路。這個(gè)備用回路設(shè)計(jì)用于達(dá)到所需要的10V～20V電壓。在機(jī)端電壓達(dá)到發(fā)電機(jī)電壓的10%時(shí)，備用起勵(lì)回路自動(dòng)退出，立即開始軟起勵(lì)過程并建壓到預(yù)定的電壓水平。整個(gè)起勵(lì)過程和順序控制是通過調(diào)節(jié)器實(shí)現(xiàn)的。備用起勵(lì)回路為模塊化結(jié)構(gòu)，包括空氣開關(guān)、起勵(lì)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(lì)磁裝置的限制功能.4.6 LimitationFunctionsofExcitationDevice:V/F限制；V/FLimitation過勵(lì)限制；Over-excitationLimitation欠勵(lì)限制；Under-excitationLimitation定子電流限制；StatorCurrentLimitation最大磁場(chǎng)電流限制；Max.MagneticFieldCurrentLimitation最小磁場(chǎng)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(lì)磁裝置的監(jiān)測(cè)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(bào)警；AlarmforRectificationBridgeFault轉(zhuǎn)子過熱報(bào)警；AlarmforRotorOverheating勵(lì)磁變超溫報(bào)警；AlarmforOver-temperatureofExcitationTransformer通訊故障報(bào)警。CommunicationFaultAlarm.4.8 勵(lì)磁裝置的保護(hù)功能.4.8 ProtectiveFunctionforExcitationDeviceV/f保護(hù)；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(hù)；RotorOvercurrentTrip失磁保護(hù)；ExcitationLossProtection勵(lì)磁變過流保護(hù)；ExcitationTransformerOver-CurrentProtection勵(lì)磁變超溫跳閘ExcitationTransformerOverheatingTrip.交流側(cè)過電壓保護(hù)Over-voltageProtectiononACSide直流側(cè)過電壓保護(hù)Over-voltageProtectiononDCSide.4.9 勵(lì)磁裝置的其它功能.4.9 OtherFunctionsofAVR軟起勵(lì)；SoftInitialExcitation殘壓起勵(lì)；ResidualVoltageInitialExcitation有功和無功補(bǔ)償；CompensationforActiveandReactivePower系統(tǒng)電壓跟蹤；NetworkVoltageTracing通道之間自動(dòng)跟蹤；AutoTracingbetweenChannels故障智能檢測(cè)和自動(dòng)切換；IntelligentFaultDetectionandAutoSwitchover容錯(cuò)控制；ToleranceControl故障錄波和故障記錄；FaultOscillographandRecording輔助調(diào)試和試驗(yàn)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(hào)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(qiáng)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(fù)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(diǎn)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(hào)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(fù)載損耗№1廠高變280.2kW№2廠高變198.5kW№3廠高變280.2kW中性點(diǎn)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(dòng)／備用變技術(shù)規(guī)范:.7 TechnicalSpecificationsofSST型號(hào)SFZ-31500/150額定容量31500KVA額定電壓150±8×1.25%/6.3KV額定電流121.24/2886.75A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(fù)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%/6.3KVRatedCurrent121.24/2886.75AConnectionmodeYn，yn+dVoltageadjustingmodeVoltageadjustingwithloadNumberofPhases3RatedFrequency50HzCoolingModeONAN/ONAFOn-loadloss310kWNo-loadloss96.9kWImpedanceVoltage14%EarthingModeDirectlyEarthedonHVsideViaOneIntermediateResistorof18.18ΩonLVsideManufacturerTBEC.8 發(fā)-變組附屬設(shè)備技術(shù)規(guī)范.8 Technicalspecificationsfortheauxiliaryequipmentofgenerator-transformerunit.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(shí)工頻耐受電壓(KV)(有效值)150150雷電沖擊耐受電壓(KV)(峰值)7070動(dòng)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(diǎn)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(shí)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(jī)中性點(diǎn)接地變壓器.8.3 Generatorneturalgroundedtransformer發(fā)電機(jī)中性點(diǎn)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(shí)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(hù)及同期裝置3.1.4 Generator-TransformerUnitRelayProtectionandSynchronization 發(fā)-變組繼電保護(hù)運(yùn)行維護(hù) OperationandMaintenanceforGenerator-TransformerUnitRelayProtection發(fā)-變組保護(hù)采用許繼集團(tuán)國際工程有限公司提供的WFB-805A微機(jī)型發(fā)電機(jī)變壓器組成套保護(hù)裝置以及WFB-804A微機(jī)型發(fā)電機(jī)變壓器組非電量保護(hù)裝置。被保護(hù)設(shè)備包括發(fā)電機(jī)、主變壓器、勵(lì)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(jī)變壓器組保護(hù)采用保護(hù)雙重化配置，每套保護(hù)包含完整的主保護(hù)和后備保護(hù)。發(fā)電機(jī)變壓器組保護(hù)兩套完整的電氣量保護(hù)分別布置在保護(hù)A、B柜，非電量保護(hù)和單套電氣保護(hù)布置在保護(hù)C柜。Generatortransformerunitprotectionisofdualconfiguration;eachincludescompletemainandbackupprotection.TwosetsofcompleteelectricalprotectionofgeneratortransformerunitprotectionareindividuallyarrangedonprotectiverelayingpanelAandB,non-electricalandsinglesetofelectricalprotectionisarrangedonprotectiverelayingpanelC.發(fā)電機(jī)變壓器組保護(hù)兩套保護(hù)中每套保護(hù)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(dú)立的繞組，兩套保護(hù)裝置之間沒有任何電氣聯(lián)系。當(dāng)一套保護(hù)因異常需要退出或檢修時(shí)，不影響另一套保護(hù)正常運(yùn)行。ACcurrentandvoltageofeachofthetwosetsofgeneratortransformerunitprotectionisoriginatedfromtheindependentcurrenttransformerandvoltagetransformer.Thereisnoelectricalconnectionbetweenthetwosetsofprotectionequipments.Whenonesetofprotectionequipmentneedstoexitormaintenanceoutofabnormity,thenormaloperationoftheothersetshouldnotbeinfluenced.非電量保護(hù)通過強(qiáng)電電磁繼電器實(shí)現(xiàn)。非電量保護(hù)的接點(diǎn)送入各自的保護(hù)裝置，作為事故記錄。并通過專門跳閘回路輸出跳閘接點(diǎn)和報(bào)警信號(hào)。每柜的電量保護(hù)及非電量保護(hù)均設(shè)置各自獨(dú)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(dú)立，在保護(hù)柜上的安裝位置也相對(duì)獨(dú)立。兩套完整的電氣量保護(hù)和非電量保護(hù)的跳閘回路分別同時(shí)動(dòng)作于斷路器的兩個(gè)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(hù)A柜、B柜配置完全相同，設(shè)置以下保護(hù)（每套保護(hù)系統(tǒng)的功能及出口回路設(shè)置有保護(hù)投、退的連接片）。.1 ThearrangementofprotectionAandBforgenerator-transformerunitarecompletelythesame.Thefollowingprotectionsarearranged(thelinksarefittedforeachprotectionfunctionscircuitandoutletcircuitforin/outservice.)發(fā)電機(jī)差動(dòng)保護(hù)Generatordifferentialpro