3#机组启动72小时试运行报告(正式稿)

老挝南奔水电站1#机组试运行NamBenHPP1#Unitrunningtest工作报告workreport湖北大禹水利水电建设有限责任公司HUBEIDAYUSHUILISHUIDIANJIANSHEYOUXIANZERENGONGSI2016年3月26日26date3month2016year19 目录tableofcontents工程概况ProjectOverview工作内容Theworkcontent工作计划theworkplane启动前的调试及验收Commissioningandacceptancebeforestarte-up充水试验water-filledtest机组首次开机thefirststart-uptest机组空转运行下调速系统试验Testofgoverningsysteminno-loadrunning无励磁自动开机和自动停机试验Unitautomaticstart-upandstoptestwithnoexcitation过速试验Unitoverspeedtest机组空载试验Testofgoverningsysteminno-loadrunning115KV设备及主变冲击受电试验MaintransformerandGISpowerdistributionequipmentsingle-groutingtest机组同期并网试验Preparationforsynchronization机组带负荷试验unittestwithload机组甩负荷试验Loadrejectiontest机组72小时试运行Unit72hcommission结论及存在的问题Conclusionsandproblems19 一、工程概况ProjectOverview南奔水电站水库总库容539万m3，水库正常蓄水位435m，死水位430m，调节库容318万m3，具有日调节能力。电站装机容量为36MW（3×12MW），保证出力为5.10MW，年发电量为1.388亿kWh，装机利用小时4081h。NamBengHPPowerreservoirswithatotalcapacity5.39millionm3，Normalwaterlevelis430m,Lowestlevelis430m,Regulatingstorageis3180thousand.二、试运行工作内容1、充水试验water-filledtest2、机组首次开机thefirststart-uptest机组空转运行下调速系统试验Testofgoverningsysteminno-loadrunning无励磁自动开机和自动停机试验Unitautomaticstart-upandstoptestwithnoexcitation过速试验Unitoverspeedtest升流试验Testofincreasingcurrent机组空载试验Testofboostingvoltage发电机带主变及GIS一次设备零起升压试验GeneratorincreasingcurrenttestwithmaintransformerandGIS115KV设备及主变冲击受电试验MaintransformerandGISpowerdistributionequipmentsingle-groutingtest机组同期并网试验Preparationforsynchronization机组带负荷试验unittestwithload机组甩负荷试验Loadrejectiontest机组72小时试运行Unit72hcommission19 三、1#机组试运行大事记theEventrecordcoofmmissioningofunit1充水试验（厂房段）water-filledtest2016年1月17日~1月18日机组首次开机thefirststart-uptest2016年1月18日机组空转运行下调速系统试验Testofgoverningsysteminno-loadrunning2016年1月18日无励磁自动开机和自动停机试验Unitautomaticstart-upandstoptestwithnoexcitation2016年1月19日机组过速试验Unitoverspeedtest2016年1月19日发电机升流试验Testofincreasingcurrent2016年1月20日发电机带主变及GIS一次设备零起升压试验GeneratorincreasingcurrenttestwithmaintransformerandGIS2016年1月20日机组空载试验Testofboostingvoltage2016年1月20日115kV设备及主变冲击受电试验MaintransformerandGISpowerdistributionequipmentsingle-groutingtest2016年3月9日机组同期并网试验Preparationforsynchronization2016年3月10日机组带负荷试验unittestwithload2016年3月10日机组甩负荷试验Loadrejectiontest2016年3月10日机组72小时试运行Unit72hcommission7月25日~7月27日四、充水试验water-filledtest流道充水分两步进行，第一步，确定机组上游蝶阀处于关闭状态，锁定蝶阀机械锁定，蝶阀处于就地位置；确定活动导叶处于关闭状态，调速器处于就地位置。打开尾水平压充水阀、打开蜗壳排水阀、打开蜗壳排气阀，对尾水管及蜗壳充水。检查尾水管、尾水进人门、蜗壳进人门、蝶阀下游侧，蝶阀伸缩节、导水机构各组合面等无渗漏，工作密封漏水量通过自流满足排水要求，厂房检修排水泵、渗漏排水泵能满足排水要求，再根据尾水开启程序进行闸门开启操作，19 开启尾水闸门。FilledwithwaterintoTheflowchannelbedividedintotwosteps.thefirst,confirmthatallInletvalveisturnedoff,allLockingdeviceofInletvalveisPuttedin,OperationmethodofInletvalveisOnthespot;confirmthattheVanes0funit1#isturnedoff,theOperationmethodof1#SpeedgovernorisOnthespot.opentheBypassvalveofTailwatersluice1#,openspiralcaseDrainvalveofunit1#,openspiralcaseexhaustvalveofunit1#,fillwaterintodrafttubeandspiralcaseofunit1#.AffterInspectingtube、spiralcase、Inletvalveandguidenoleakage,Theamountofworkthesealleakagesufficeoperationalrequirements,Plantmaintenancedrainpump,drainpumpleakagesufficeoperationalrequirements,openTailwatersluice1#.第二步，确认蝶阀手动旁通阀处于关闭，关闭蜗壳排水阀、关闭尾水平压阀，打开液压旁通阀，再慢慢打开手动旁通阀，向蜗壳充水，观察尾水管、尾水进人门、蜗壳进人门、蝶阀下游侧，蝶阀伸缩节、导水机构各组合面等无渗漏，工作密封漏水量通过自流满足排水要求，厂房检修排水泵、渗漏排水泵能满足排水要求，再根据进水口闸门开启程序进行闸门开启操作，开启进水口闸门。Thesecondstep,closeManualbypassvalveofunit1#Inletvalveisturnedoff,closespiralcaseexhaustvalveofunit1#,closetheBypassvalveofTailwatergate1#,thenopenHydraulicbypassvalve,openManualbypassvalveslowly,AffterInspectingtube、spiralcase、Inletvalveandguidenoleakage,Theamountofworkthesealleakagesufficeoperationalrequirements,Plantmaintenancedrainpump,drainpumpleakagesufficeoperationalrequirements,openInletsluice.五、机组首次开机unitfirststart-up按照启动试运行规程、《1#机组启动试运行大纲》中机组首次启动和空转试验的要求，对1#机组各部位、各系统进行检查，使其处于手动开机状态，满足手动开机要求后，正式开始首次启动和空转试验。inaccordancewithrequirementsofthefirsttimestartandidlingtestsin《tarttestrunprocedures》、《unit1#StarttestrunOutline》,Initialunitstart-upafterunit1#sufficeoperationalrequirements.1手动打开主轴密封排水阀，退出空气围带、风闸，顶起转子5-7mm，保持10min，保证推力瓦润滑。落转子，打开蝶阀，打开技术供水电动阀，调整技术供水水压0.4MPa。1.Openunit1#exhaustvalveofworkthesealleakagewithManually,RemovalPressureofunit1#themaintenanceseal,JackingRotor5-7mmkeeping10min.godownRotor,open1#Inletvalve,openelectricvalveadjustingPressureofCoolingwaterto0.2-0.4MPa.19 2手动拔出接力器锁定，打开调速器的导叶开度限制机构，待机组开始转动后将导叶关回，由各部观察人员检查和确认机组转动与静止部件之间有无摩擦、碰撞及其它异常情况。dropoutlockingofServomotor,opentheguidevaneopeningofSpeedgovernor,assoonasunitrun,closetheguidevane,inspectunit,allarenormalwhenunit“running”and“stop”.3确认各部正常后再次打开导叶启动机组。当机组转速升至接近50%额定转速时暂停升速，观察各部无异常后继续升速，机组在额定转速下运行。上游水库水位432.5m，尾水水位351m，机组额定转速下的导叶开度20.7%。Afterconfirmallarenormal,openthetheguidevaneandstart-upunit1#.Stopincreasingspeedwhenspeednears50%Ratedspeed.Continuetoincreasespeedto428.6r/minrunningifallarenormal.ResevoirLevelis432.5m,TailWaterLevelis351m,theguidevaneopeningis20.7%whenspeedreachsRatedspeed(428.6r/min).4在机组升速过程中派专人严密监视推力瓦和各导轴瓦的温度，无急剧升高或下降现象。机组达到额定转速后，前阶段每隔5分钟记录瓦温，之后可适当延长时间间隔，机组空转4小时后瓦温稳定，此时的最高温度见下表.IntheprocessofUnitincreasesingthespeed,keepwatchoverThrustPadTemp、UpperGuideTemp、LowerGuideTemp、TurbineGuideTemp，allTempcannotSuddenincreaseandSuddendecrease.WhenunitrunningatRatedspeed,recordThrustPadTemp、UpperGuideTemp、LowerGuideTemp、TurbineGuideTemp.Afterunitrunning4h,Tempissteady.thistimethehighestofThrustPadTemp、UpperGuideTemp、LowerGuideTemp、TurbineGuideTempsufficeoperationalrequirements.部位Place水导瓦温TurbineGuideTemp推力瓦温ThrustPadTemp上导瓦UpperGuideTemp下导瓦LowerGuideTemp允许值（℃）Allowedvalues65℃报警Alarm65℃70℃停机stop℃50℃报警Alarm50℃55度停机Stop55℃65度报警Alarm65℃70度停机stop70℃65度报警Alarm65℃70度停机stop70℃最高值（℃）Highestvalue46.8℃33.8℃50.7℃44.7℃5机组导瓦间隙调整值为，上导瓦综合间隙0.20mm，下导瓦综合间隙0.24mm，水导瓦综合间隙0.28mm，实际最大运行摆度上导轴承0.098mm,下导轴承0.08mm，水导轴承0.1mm，满足规范要求。UpperGuideAdjustingTotalgapis0.20mm.LowerGuideAdjustingTotalgapis0.24mm,ArialAdjustingTotalgapis0.28mm.thehighestRunningswingsufficeoperationalrequirements.Upperbearingswingis0.098mm,Lowerbearingswingis0.08mm,Turbinebearingswingis0.1mm.6机组运行过程中，主轴密封漏水通过自排，满足设计要求。检修排水泵调整至自动位置，自动启动排水间隔时间为72h，满足运行要求。渗漏排水泵调整至自动位置，自动启动启动排水间隔为8h，满足运行要求。Intheprocessofunitrunning,Theamountofworkthesealleakagesuffice19 operationalrequirements,Plantmaintenancedrainpumpanddrainpumpleakagesufficeoperationalrequirements,Plantmaintenancedrainpumpautomaticstart-upEverySeventy-twohours.drainpumpleakageautomaticstart-upEveryeighthours.7机组运行过程中，机组各部位振动值最大值满足规范及设计要求。Intheprocessofunitrunning,unitVabrationsufficeoperationalrequirements.序号No.方向direction振动允许值（mm）VabrationAllowedvalues上机架UpperGuide下机架LowerGuide水导TurbineGuide序号No.振动允许值（mm）VabrationAllowedvalues定子机架Statorchassis定子铁芯StatorCore1水平level0.050.0230.0230.02630.030.0150.0092垂直plumb0.040.0120.0130.01340.020.0120.009六、机组空转运行下调速系统试验governingsysteminno-loadrunning检查调速器测频信号正确，符合要求。Frequencysignalofspeedgovernorsufficeoperationalrequirements.机组瓦温基本稳定后，调速器测频装置工作正常，进行调速器手动和自动切换，接力器无明显摆动。AfterallTempsufficeoperationalrequirementsandFrequencymeasuringdeviceiscorrect,SwitchOperationmodeofspeedgovernorbetweenmanualandautomatic,ServomotorhasnotSignificantswing.频率给定的调整范围符合设计要求。AdjustmentrangeofFrequencygivensufficeoperationalrequirements.调速器空载扰动试验符合设计要求，调速器自动运行稳定时，加入扰动量分别为±1%、±2%、±4%的阶跃信号，调速器电气装置能可靠的进行自动调节，调节过程正常，最终能够稳定在额定转速下正常运转。Whenthespeedgovernorrunningstablewithautomatically,Joindifferentdisturbance(±1%、±2%、±4%Ratedfrequency),Electricalinstallationsofspeedgovernorcanautomaticregulate,runningStableatRatedspeed.19 七、无励磁自动开机和自动停机试验Unitautomaticstart-upandstoptestwithnoexcitation1、启动机组LCU1空转开机。automaticstart-upunite1#.按照机组自动开机流程，检查各自动化元件动作情况和信号反馈正常。开机程序满足设计要求。automaticstart-upunite1#,Actioncorrect,signalofAutomationcomponentsFeedbackcorrect,sufficeoperationalrequirements.2、机组LCU1自动停机由机组LCU1发停机指令，机组自动停机。机组转速降至30%额定转速（128.6r/min）时制动器正常投入。机组停机过程中各停机流程与设计顺序一致。现地、机旁、中控室等部位，检查紧急事故停机按钮动作可靠。模拟机组各种机械、电气事故及故障信号，进行事故停机流程试验，事故和故障信号响应正确，事故停机信号的动作流程正确可靠。事故停机均关闭蝶阀，关闭活动导叶，打开调压阀，调压阀复归在调速器室调速器控制柜手动复归，其余流程与正常停机相同。剪断销剪断信号出现在机组停机过程中，停机流程与其他事故停机相同，不同之处为停机后制动器不复归，待故障消除后手动复归。Sendoutstoppingorder,unit1#stopautomatic.Whenspeedat30%Ratedspeed(128.6r/min),brakeisPuttedinautomatic,StoppingActioncorrect.InthecentercontrolroomandLow-pressureroomoperateEmergencystoppingPushbuttonOnthespot,unitstopandActioncorrect.SimulateMechanicalandelectricalAccidentsignal,unitstopandActioncorrect.InallAccidentstoppingAction,Inletvalveisclosed,Vanesisclose,regulatingvalveisopened,closedregulatingvalveonthespeedgovernorwithManually,othersisthesameasNormalstoppingaction.Onlybreakpinisbreakedintheprocessofunitstoppingaction,BrakesdonotautomaticdropoutafterBrakesPuttedin,droppingoutBrakesneedoperatingwithManuallyOnthespotingovernorroom.3、远方开停机命令正确、动作正常。Allautomaticstarting-upandstoppingactionarecorrectwithdistance.八、过速试验overspeedtest1#机组进行过速试验，上游水库水位432.5m，尾水水位351m，115%额定转速收到报警信号，140%自动紧停动作，导叶开度38.56%，最高速度70.01Hz，蜗壳压力过速前0.74MPa，过速中最大蜗壳压力0.81MPa，蜗壳压力上升率9.46%，蝶阀关闭，导叶关闭，调压阀全开，流程正常，停机后检查机组正常，调压阀调速器室现地复归。过速过程中最大振动摆度值见下表。OverspeedtestofUnit1#sufficeoperationalrequirements.Intheprocessof19 overspeedtest,ResevoirLevelis432.5m,TailWaterLevelis351m,Alarmsignalisacceptedat115%Ratedspeed,stoppingsignalisacceptedat140%Ratedspeedandtheunitisstopped,Vanesopening38.56%,thehighestfrequencyis70.01Hz,Spiralcasepressurebeforeoverspeedtestis0.74MPa,intheprocessofoverspeedtestthebiggestSpiralcasepressureis0.81MPa,SpiralcasepressureRateofriseis9.46%,Inletvalveisclosed,Vanesisclose,regulatingvalveisopened,closedregulatingvalveonthespeedgovernorwithManually,Actioncorrect.intheprocessofoverspeedtestRun-outandVabrationdataarelookedoverinnexttable.时间time振动UpperGuide上导XUpperGuide上导YUpperGuide上导ZLowerGuide下导XLowerGuide下导YLowerGuide下导ZStator定子XStator定子YStator定子ZTurbineGuide水导XTurbineGuide水导YTurbineGuide水导Z过速前beforeoverspeed222312232213151412212613过速overspeed475311444814131729354023摆度swing时间timeUpperGuide上导XUpperGuide上导YLowerGuide下导XLowerGuide下导YTurbineGuide水导XTurbineGuide水导Y过速前beforeoverspeed989817621170100过速overspeed11011520023377117过速试验停机后，全面检查机组各部分，如转子联轴螺栓、磁极连接、磁极引线、阻尼环、组合轴承、水导轴承、主轴密封等转动部分，未发现螺栓松动和焊缝裂开等异常现象。AfterStoppingunit,inspectunitComprehensivly,FixingmemberandRotatingmemberarenotbnormal.九、机组空载试验1#UnitNoloadCharacteristicTest（一）、发电机升流试验TestofboostingCurrentwithgenerator1、合上发电机接地刀JD2;19 PutinearthingswitchJD2ofgenerator.手动开机至额定转速，机组各部运行正常。Start-uptheunittorunningatRatedspeed,allarenormal.励磁变自然通风良好，励磁功率柜风冷回路正常。naturalventilationofExcitatingtransformerworkswell,AirCoolingSysteminrectifiercubicleworkswell.将励磁调节器电流给定降至最小，投入它励电源。检查短路范围内的CT二次残余电流，无开路现象。AdjustCurrentSetpointofrectifiertotheLeast,putinotherExcitatingpower.SecondarycurrentofCTisnotOpencircuited.合灭磁开关，缓慢升流至（3～4）%发电机额定电流，检查升流范围内各CT二次无开路，继续升流至10%额定电流，检查各CT二次三相电流平衡相位正确；检查测量表计接线及指示正确；检查发电机保护、励磁变压器保护、主变保护、测量回路的电流幅值相位显示正确。Closede-excitationswitch,Increasegeneratorcurrentslowlyat(3~4)%Ratedgeneratorcurrent,SecondarycurrentofCTisnotOpencircuited.KeepingonIncreasegeneratorcurrentslowlyat10%Ratedgeneratorcurrent,Three-phasecurrentPhasesequenceandPhasearecorrect,AmplitudeandPhaseofgeneratorprotection/excitation/1#transformerprotection/Measuringcircuitarecorrect.退出电气事故回路保护。dropoutelectricprotection.在发电机额定电流下，跳灭磁开关检验灭磁情况正常。WhengeneratorcurrentisRated,dropoutde-excitationswitch,allarenormal.8、额定电流下的机组振动与摆度满足设计要求，碳刷与集电环工作情况正常。VabrationandRun-outsufficeoperationalrequirementsunitrunningattheRatedcurrent,carbonbrushandCollectingringworkecorrectly.9、试验过程中检查发电机主回路、励磁变、共箱母线等各部位运行正常，无异常声响或温升。IntheprocessofTestboostingvoltagewithgenerator,generator/Excitatingtransformer/Totalboxbusbarworkecorrectly（二）发电机带主变、GIS升流试验TestofboostingCurrentwithMT&GIS1、断开发电机接地刀JD2,合上接地刀FES13;OpengeneratorgroundingKnifeJD2,closegroundingKnifeFES13.2、合上发电机断路器GCB及GIS断路器CB21、CB11,合上隔离开关DS22、DS21、DS11、DS12,检查升流范围以外的断路器、隔离开关、接地开关在分闸位置。CloseGCB/GISCB21andCB11,closeDS22/ds21/ds11andDS12,openotherCB/groundingKnifeFESandDS.2、手动开机至额定转速，机组各部运行正常。Start-upunitandrunningatratespeed,unitworkscorrect.3、励磁变自然通风良好，励磁功率柜风冷回路正常。19 NaturalventilationofExcitatingtransformerworkswell,AirCoolingSysteminrectifiercubicleworkswell.4、将励磁调节器电流给定降至最小，投入它励电源。检查短路范围内的CT二次残余电流，无开路现象。AdjustCurrentSetpointofrectifiertotheLeast,putinotherExcitatingpower.SecondarycurrentofCTisnotOpencircuited.5、合灭磁开关，缓慢升流至（3～4）%发电机额定电流，检查升流范围内各CT二次无开路，继续升流至10%额定电流，检查各CT二次三相电流平衡相位正确；检查测量表计接线及指示正确；检查发电机保护、励磁变压器保护、主变保护、测量回路的电流幅值相位显示正确。Closede-excitationswitch,Increasegeneratorcurrentslowlyat(3~4)%Ratedgeneratorcurrent,SecondarycurrentofCTisnotOpencircuited.KeepingonIncreasegeneratorcurrentslowlyat10%Ratedgeneratorcurrent,Three-phasecurrentPhasesequenceandPhasearecorrect,AmplitudeandPhaseofgeneratorprotection/excitation/1#transformerprotection/Measuringcircuitarecorrect.6、退出电气事故回路保护。dropoutelectricprotection.7、在发电机额定电流下，跳灭磁开关检验灭磁情况正常。WhengeneratorcurrentisRated,dropoutde-excitationswitch,allarenormal.8、额定电流下的机组振动与摆度满足设计要求，碳刷与集电环工作情况正常。VabrationandRun-outsufficeoperationalrequirementsunitrunningattheRatedcurrent,carbonbrushandCollectingringworkecorrectly.9、试验过程中检查发电机主回路、励磁变、共箱母线等各部位运行正常，无异常声响或温升。IntheprocessofTestboostingvoltagewithgenerator,generator/Excitatingtransformer/Totalboxbusbarworkcorrectly.（三）发电机升压试验Testofboostingvoltagewithgenerator投入发电机各保护.机组在空转位置运行。Putinallgeneratorprotection.Start-upunitandberunningatratedspeedandde-excitation.测量发电机升流试验后的残压值，并检查三相电压的对称性满足试验要求。MeasureResidualvoltagevalueafterboostingCurrentwithgenerator,Three-phasevoltagesufficeskillsrequirements.手动升压至25%额定电压，检查：发电机及引出母线、分支回路等设备带电正常。机组各部振动及摆度正常。测量发电机PT二次侧三相电压相序、幅值正常，测量PT二次开口三角电压值满足设计要求。BoostvoltagewithManuallyat25%ratedspeed,inspectgenerator/Busbarandcircuit,theseworkcorrectly.VabrationandRun-outofunitsufficeskillsrequirements.MeasureSecondarysidevoltageofgeneratorPT,19 Three-phasevoltagesufficeskillsrequirements.逐级升压至发电机额定电压，检查带电范围内一次设备的运行情况正常。BoostvoltagewithManuallystepbystepuntilspeedarrivesratedvoltage(11KV).检查发电机PT回路相序、电压、频率应正确。InspectcircuitofgeneratorPT,Phasesequence/Voltageandfrequencyarecorrect.测量额定电压下机组的振动与摆度满足设计要求。WhenUnitrunatratedVoltage,VabrationandRun-outsufficeskillsrequirements.定子铁芯各部温度正常。Statorcoretempsufficeskillsrequirements.退出电气事故回路保护。分别在50%、100%发电机额定电压下跳灭磁开关，检查灭弧情况正常。Dropoutelectricprotection.Opende-excitationswitchat50%and100%ratedVoltage,de-excitationswitchworkscorrectly.投入电气事故回路保护。试验完毕后模拟发动机偷跳灭磁开关，保护非电量事故停机，停机流程正确。Putinelectricprotection.opende-excitationswitch，unitautomaticstopurgently.（四）发电机带主变及GIS一次设备零起升压试验TestofboostingVoltagewithMT&GIS1、将发电机断路器GCB置工作位置，并处于合闸位置，断开所有的接地开关和其它分支的断路器，母线PT处于工作位置。ClosegeneratorGCBandputGCBinWorkingposition.openotherDSandCB,putinBusPTinWorkingposition.2、合上GIS隔离开关DS22、DS21、DS11、DS12、DS31及断路器CB21、CB11，分DS51隔离开关，检查升压范围以外的断路器、隔离开关、接地开关在分闸位置。CloseGISDS22/ds21/ds11/DS12andDS31,CloseCB21andCB11,openDS51,inspectotherCB/DSandgroundingKnifeFESIntheopenningposition.3、开机至空转，合灭磁开关，合发电机出口断路器。Start-upunitandberunningatratedspeedwithnoexcitation.closede-excitationswitch,closegeneratorGCB.4、零起升压至10%的发电机额定电压，检查主变工作情况，检测相关电压互感器二次及开口三角的幅值、相序，检测电压互感器送至保护、测量、同期、调速器、励磁的电压幅值、相序，确定11kV第1段母线的相序与外来电源一致。BoostVoltageat10%ratedVoltage,Maintransformerworkswell,SecondarysideamplitudeandPhasesequenceofVoltagetransformerarecorrect.SecondarysideVoltageamplitudeandPhasesequenceofCircuitinprotectioncubicle/measuringcubicle/Synchronizationdevice/Speedgovernorandexcitationarecorrect,PhaseofpartIBusbarissameasfromouterpower.19 5、逐步升压，分别在25%、50%、75%、100%发电机额定电压下检查带电一次设备及主变工作情况无异响、温度突然升高等问题。BoostvoltageofgeneratorwithManuallystepbystepuntilspeedarrivesratedvoltage(11KV)withGISandMT,GISandMTappearnoabnormal,temphasnotboostsuddenly.6、在额定电压时，检测电压互感器送至保护、测量、同期、调速器、励磁的电压幅值、相位、频率满足设计要求。BoostVoltageatratedVoltage,SecondarysideVoltageamplitude/PhasesequenceandfrequencyofCircuitinprotectioncubicle/measuringcubicle/Synchronizationdevice/Speedgovernorandexcitationarecorrect7、检测发电机出口断路器同期电压幅值、相位。MeasureVoltageamplitudeandPhasesequenceofgeneratorGCBsufficingskillsrequirements.8、升压完毕，降低励磁电流至零，分灭磁开关，分发电机出口断路器GCB。AfterboostingVoltagetestfinish,cutbackExcitingCurrentuntilExcitingCurrentarriveat0KV,openthede-excitationswitch,opengeneratorExportGCB.十、发电机空载下的励磁调整和试验TestofExcitatingsysteminno-loadrunning1、机组励磁变已恢复正常接线，机组采用自励方式。ElectricalwiringofUnit1#Excitingtransformerisrestored.ExcitingtransformerworkwithSelf-motivation.2、按定值整定并投入发电机保护，水机保护。PutinprotectionofgeneratorandTurbine.3、自动开机到空转，稳定运行。Automaticstart-upandrunatratedspeedwithnoexciting.4、在发电机额定转速下，检查励磁A、B通道下的调节范围，在调整范围内平滑稳定的调节。WhenUnitrunsatratedspeedwithnoexciting,inspectextentofexcitingregulatorsufficingskillsrequirementsinthoroughfareAandthoroughfareB.19 5、在额定空载励磁电流情况下，检查功率整流桥的均流系数，均流系数大于0.85。UnitrunsatratedExcitingCurrent,CurrentcoefficientofPowerrectifierbridgeismorethan0.85.6、在发电机空载状态下，分别检查起励、逆变、手动和自动切换、通道切换等情况下的稳定性和超调量。在发电机空转且转速在95%～100%额定值范围内，自动起励，机端电压从零上升到额定值时，电压超调量不大于额定值的10%，超调次数、调节时间满足设计要求。。Inno-loadrunning,excitation/Inverter/SwitchingbetweenManualandautomatic/SwitchingbetweenthoroughfareAandthoroughfareBworkwell.whenunitrunat95%~100%ratedspeedwithnoexciting,MachineendVoltageboosttoratedVoltagefrom0KVwithautomaticexciting,OvershootvalueofVoltageisnomorethan10%ratedvoltage,OvershoottimesandAdjustmenttimesufficingskillsrequirements.7、在发电机空载状态下，人工加入±10%阶跃量干扰，最高电压、最低电压满足要求。Inno-loadrunning,8、发电机转速在90%～110%内变化，测定发电机端电压。频率每变化1%，发电机电压的变化值不大于±0.25%。9、Unitrunsbetween90%ratedspeedto100%ratedspeed,ChangevalueofMachineendVoltageisnomorethan0.25%ratedVoltagewhenfrequencyChange1%rated.10、进行额定电压的起励、逆变灭磁试验，分别在A、B通道“正常”位置，手动和自动分别进行额定电压下的起励、逆变灭磁试验。试验结果满足设计要求Excitationandde-excitationtestsufficingskillsrequirementswiththoroughfareAorthoroughfareBSwitchingbetweenManualandautomatic.11、调速器设置为自动，机组LCU1设置为现地控制，在LCU1上发“开机到空载”令，观察机组自动开机至95%额定转速、自动合灭磁开关、自动起励升压到90％额定电压等过程中的设备运行情况正常。OperationmodeofSpeedgovernorissetautomaticplace,PutOperationmodeofUnitLCU1Onthespot,giveanorder“start-uptono-loadrunning”,unitstart-upautomaticandclosede-excitationswitchautomatic,automaticexcitatingto90%ratedvoltage,EquipmentOperationsufficeskillsrequirements.十一、GIS及主变冲击受电试验MaintransformerandGISpowerdistributionequipment19 single-groutingtest1、GIS设备全电压受电冲击正常GISpowerdistributionequipmentsingle-groutingtestsufficeskillsrequirements.2、GIS、1#主变压器全电压受电冲击正常,最大冲击电流8.2A，稳定后电流为0.2~0.4A。MaintransformerandGISpowerdistributionequipmentsingle-groutingtestsufficeskillsrequirements.thebiggestInrushcurrentis8.2A,theendcurrentis0.2~0.4A.十二、机组同期并网试验Preparationforsynchronizationtest选择发电机出口断路器作为机组并列同期点，同期回路接线正确。假同期试验正确。ChoosegeneratorGCBasSynchronizationpoint,electriccircuitofPreparationforsynchronizationarecorrect.Preparationforsynchronizationtestarecorrect.十三、机组带负荷试验Unitsynchronizationandconnectedtothegrid1、发电机出口断路器自动、手动同期正常，机组并列。ChoosegeneratorGCBasSynchronizationpoint,SynchronizationtestwithAutomaticormanualarecorrect,Unitrunswithload.3、水轮发电机组带负荷下励磁调节器试验符合设计要求。Unitrunswithload，Increasingtheloadstepbystep,Excitationregulatorsufficeskillsrequirements.4、带负荷试验带额定负荷12MW进行试验，试验结果满足设计要求，机组各部的振动、摆度满足设计要求；定子温度、推力瓦和上导轴瓦、19 下导轴瓦和水导轴瓦等部位温度值，主变油温等温升无明显变化，定子电压、定子电流、励磁电压、励磁电流符合规范及设计要求，停机检查没有发现异常。Unitrunswithload，Increasingtheloadfrom0MWto12MW,unitRun-outandVabrationallsufficeskillsrequirements,Statortemp/ThrustPadTemp/UpperGuideTemp/LowerGuideTemp/TurbineGuideTempandMaintransformertemphavenotIncreaseordecreaseSuddenly,StatorVoltage/StatorCurrent/ExcitingVoltage/ExcitingCurrentsufficeskillsrequirements.老挝南奔水电站1#机组并网电气记录LaosNamBengHPP1#UnitElectricRecordinparalleling导叶开度GateOpening有功功率ActivePower无功功率ReactivePower功率因数PowerFactor定子电压（V）StatorVoltage(V)定子电流（A)StatorCurrent(A)励磁电压(V)ExcitingVoltage(V)励磁电流(A)ExcitingCurrent(A)32.20%2500.000.000.99710.31138.0027.38277.2534.50%3000.000.000.99710.50171.0027.60286.3838.90%4000.000.000.99710.11236.0027.94284.5043.50%5000.000.000.99710.21295.0029.46297.6247.90%6000.000.700.99310.21351.0031.07317.1252.10%7000.001900.000.96510.55403.0035.76371.0056.00%8000.000.800.99210.65451.0036（50）367.0059.90%9000.000.600.99610.70506.0036.90375.6264.40%10000.000.300.99810.60565.0037.85378.2573.70%12000.000.100.99810.75678.0041.00416.00振动Vibration(um)ofNamBenHPP1#UnitLoadTest19 有功功率activepower(KW)上导XUpperGuideX上导YUpperGuideY上导ZUpperGuideZ下导XLowerGuideX下导YLowerGuideY下导ZLowerGuideZ定子XStayorX定子YStayorY定子ZStayorZ水导XTurbineGuideX水导YTurbineGuideY水导ZTurbineGuideZ250022241224241215151222271230002224122424121515122325124000222412232312151512172012500022241223231215151218191260002123122323121515121819127000212312232312151512171812800022241223231215151222221290002224122323121515122123121000022241223231215151219201212000222412232312151412171812十四、机组甩负荷试验Loadrejectiontest甩负荷试验进行4次，分别为3MW（25%）、6MW（50%）、9MW（75%），12MW（100%）试验过程中机组记录接力器不动时间小于0.2秒，水轮机调速器系统的动态调节性能满足设计要求，转速上升率、水压上升率等，符合设计要求。试验过程中对瓦温进行观测，瓦温稳定，无异常变化，试验结束后对机组内部转动部分进行检查，未发现异常情况。100%甩负荷转速上升率为22.76%，蜗壳压力上升值16.22%。Loadrejectiontestishappenedat20%ratedpower(3MW)/20%ratedpower(6MW)/20%ratedpower(9MW)andratedpower(12MW),IntheprocessofLoadrejectiontest,Noactiontimeof1#unitServomotorislessthan0.2s,Dynamicallyadjustingperformanceofspeedgovernorsufficeskillsrequirements.UnitSpeedIncreasing/SpiralcasepressureIncreasing/ThrustPadTempandGuidebushtempsufficeskillsrequirements.振动VabrationofNamBenHPP1#UnitLoadRejection19 时间TimeUpperGuide上导XUpperGuide上导YUpperGuide上导ZLowerGuide下导XLowerGuide下导YLowerGuide下导ZStator定子XStator定子YStator定子ZTurbineGuide水导XTurbineGuide水导YTurbineGuide水导ZBefore甩前22241224241215151222271225%22241222241215161720241750%22241222241215161720241775%222412222412151617202417100%353717373414151512414616时间Time摆度Run-outofNamBenHPP1#UnitLoadRejectionUpperGuide上导XUpperGuide上导YLowerGuide下导XLowerGuide下导YTurbineGuide水导XTurbineGuide水导YBefore甩前91947680569225%92927680569250%92927781569275%929276815692100%98101808491115南奔水电站1#机组甩负荷试验（um)NamBengHPP1#UnitLoadRejectionTest　甩25%甩50%甩75%甩100%水库水位ResevoirLevel蜗壳压力Spiralcasepressure转速RotateSpeed蜗壳压力Spiralcasepressure转速RotateSpeed蜗壳压力Spiralcasepressure转速RotateSpeed蜗壳压力Spiralcasepressure转速RotateSpeed432.8m甩前before7.850.037.7507.6507.450尾水水位TailWaterLevelAfter甩后8.951.468.753.748.757.58.661.38351.03m19 上升值Increase14.10%2.86%12.99%7.48%14.47%15.00%16.22%22.76%　十五、72小时试运行Unit72hcommission2016年3月23日18:30进入72小时日19:00结束，试验结果满足设计要求，机组各部的振动、摆度满足设计要求；定子温度、推力瓦和上导轴瓦、下导轴瓦和水导轴瓦等部位温度值，主变、励磁变油温满足规范及设计要求，定子电压、定子电流、励磁电压、励磁电流符合规范及设计要求，停机检查没有发现异常。振动VabrationUpperGuide上导XUpperGuide上导YUpperGuide上导ZLowerGuide下导XLowerGuide下导YLowerGuide下导ZStator定子XStator定子YStator定子ZTurbineGuide水导XTurbineGuide水导YTurbineGuide水导Z16151018169111110151610摆度swingUpperGuide上导XUpperGuide上导YLowerGuide下导XLowerGuide下导YTurbineGuide水导XTurbineGuide水导Y74741762119692部位Place水导瓦温TurbineGuideTemp推力瓦温ThrustPadTemp上导瓦UpperGuideTemp下导瓦LowerGuideTemp主变温度Maintransformertemp励磁变温度excitationtransformertemp允许值（℃）Allowedvalues65℃报警Alarm65℃70℃停机stop℃50℃报警Alarm50℃55度停机Stop55℃65度报警Alarm65℃70度停机stop70℃65度报警Alarm65℃70度停机stop70℃85度报警Alarm85℃110度停机stop110℃80度报警Alarm85℃110度停机stop110℃最高值（℃）Highestvalue49.1℃38.45℃49.5℃44℃58.7℃63℃19 十六、结论conclusion南奔水电站3#机组依照《启动调试大纲》要求，完成了所有试验项目，水轮发电机组及其附属设备、电气设备及辅助设备运行正常，满足规范及设计要求。Accordingto《NamBengHPPunit3#start-upandCommissioningPlatform》,finishedalltest,HydroGroupandancillaryequipment/ElectricalEquipment/HydraulicMachineryequipmentwokednormal,sufficeoperationalrequirements.2016年3月27日19