3#机组启动72小时试运行报告正式稿

1、老挝南奔水电站 1#机组试运行Nam Ben HPP 1# Unit running test作报work report湖北大禹水利水电建设有限责任公司HUBEI DAYUSHUILISHUIDIAN JIANSHEYOUXIANZERENGONGSI2016 年 3 月 26 日26date3month2016year table of contents工程概况P roject Overview工作内容The work content工作计划the work plane启动前的调试及验收Commissi oning and acce ptance before starte-up充水试验wa

2、ter-filled test机组首次开机the first start -up test机组空转运行下调速系统试验Test of gover ning system in no-load running无励磁自动开机和自动停机试验Unit automatic start- up and stop test with no excitati on 过速试验Unit overs peed test机组空载试验Test of gover ning system in no-load running115KV设备及主变冲击受电试验Mai n tran sformer and GIS po wer d

3、istributio n equipment sin gle-grouti ng test机组同期并网试验Prep arati on for synchroni zati on机组带负荷试验unit test with load机组甩负荷试验Load rejectio n test机组72小时试运行Unit 72h commissi on结论及存在的问题Con clusi ons and p roblems、工程概况 Project Overview539万m3,水库正常蓄水位 435m，死水位430m,调节库容318万 保证出力为5.10MW，年发电南奔水电站水库总库容m3，具有日调节能力。

4、电站装机容量为36MW (3 X 12MW ),3， Normal water level is 430m,量为1.388亿kWh，装机利用小时 4081h。Nam Beng HPP ower reservoirs with a total capacity 5.39 million m Lowest level is 430m, Regulating storage is 3180 thousand.二、试运行工作内容1、充水试验 water-filled test2、机组首次开机 the first start-up test 机组空转运行下调速系统试验Test of governing

5、system in no-load running 无励磁自动开机和自动停机试验Unit automatic start-up and stop test with no excitation 过速试验Unit overspeed test升流试验Test of increasing current 机组空载试验Test of boosting voltage 发电机带主变及 GIS 一次设备零起升压试验Generator increasing current test with main transformer and GIS 115KV设备及主变冲击受电试验Main transformer

6、 and GIS power distribution equipment single-grouting test 机组同期并网试验Preparation for synchronization 机组带负荷试验 unit test with load 机组甩负荷试验 Load rejection test 机组 72 小时试运行 Unit 72h commission三、1#机组试运行大事记 the Eve nt recordco of mmissi oning of unit 1充水试验（厂房段）water-filled test2016年1月17日1月18日机组首次开机 the firs

7、t start-up test2016年1月18日机组空转运行下调速系统试验Test of gover ning system in no-load running2016年1月18日无励磁自动开机和自动停机试验Unit automatic start- up and stop test with noexcitati on2016年1月19日机组过速试验 Uni t overs peed test2016年1月19日发电机升流试验 Test of increasing current2016年1月20日发电机带主变及GIS 次设备零起升压试验Gen erator in creas ingcu

8、rre nttest withmain tran sformer and GIS2016年1月20日机组空载试验 Test of boosting voltage2016年1月20日115kV设备及主变冲击受电试验Main transformerand GIS power distributionequipment sin gle-grouti ng test2016年3月9日机组同期并网试验 Preparationforsynchroni zati on2016年3月10日机组带负荷试验unit test with load2016年3月10日机组甩负荷试验Load rejection te

9、st2016年3月10日机组72小时试运行Unit 72h commission7月25日7月27日四、充水试验 water-filled test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，开启尾水闸 门。Filled w

10、ith water into The flow cha nnel be divided into two ste ps . the first confirm that all Inlet valve is turned off,all Locking device ofIn let valve is Pu tted in, Op erati on method of In let valve is On the spot; confirm that the Vanes 0f un it 1# is turned off, the Op erati on method of 1# Sp eed

11、 gover nor is On the spot. open the Byp ass valve of Tail water sluice 1# ,open spiral case Drain valve of unit 1#, openspiral case exhaustvalve of unit 1#,fill water into draft tube andspiral case of unit 1#. Affter Inspectingtube、spiral case 、Inlet valve and guide no leakage, The amountof work the

12、 seal leakage suffice op erati onal requireme nts, P la nt maintenance drain pump, drain pump leakage suffice operational requirements, open Tail water sluice 1#.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

13、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。The sec ond ste p, close Manual byp ass valve of unit 1# Inlet valve is turned off, close sp iral case exhaust valve of unit 1#,close the Byp ass valve of Tail water gate 1#,the n open Hydraulic byp ass valve ,open Manual byp ass valve slowly, Affter Inspecting tu

14、be、spiral case 、Inlet valve and guide no leakage, The amount of work the seal leakage suffice operational requirements, Plant maintenance drain pump, drain pump leakage sufficeoperationalrequirements, openinletsluice .五、机组首次开机unit first start-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，

15、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。in accordanee with requirements of the first time start and idling tests intart test run procedures、unit 1# Start test run Outline ,Initial unit start- upafter unit 1# suffice op erati onal requireme nts.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

16、技术供水电动阀，调整技术供水水压0.4 MPaOpenunit 1# exhaust valve of work the seal leakage with Manually, RemovalP ressure of unit 1# the maintenance seal Jack ing Rotor 5-7mm keeping 10 min. go down Rotor, open1# Inlet valve, open electric valve adjustingPressure ofCooli ng water to 0.2-0.4 MPa.2手动拔出接力器锁定，打开调速器的导叶开

17、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。drop out locking of Servomotor, open the guide vane opening of Speed governor, as soon as unit run ,close the guide vane ijnspect unit ,all are normal when unitrunning ” and“丄力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%定转速时 暂停升速，观察各部无异常后继续升速，机组在额

18、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%。Rated sp eed. Con ti nue to in crease sp eed to 428.6r/m in running ifResevoir Level is 432.5m, Tail Water Level is351m, the guide vane opening isAfter confirm all are normal, open the the guide vane and start-up unit 1#. Stop increasing sp eed whe n sp

19、 eed nears 50% all are no rmal .20.7% whe n sp eedreachs Rated speed(428.6r/mi n).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.In the p rocess of Unit in creases ing the sp eed, keep watch over Thrust Pad Temp 、 Upper Guide Temp、Lower Guide Temp

20、、Turb ine Guide Temp ，all Temp can not Sudde n in crease and Sudden decrease. When unit running at Rated speed,_ record Thrust Pad Temp 、Upper GuideTemp、 Lower Guide Temp 、 Turbine Guide Temp. After unit running 4h, Temp is steady. this time the highest of Thrust Pad Temp、Upper Guide Temp、Lower Guid

21、e Temp、Turbine Guide Temp suffice operational requirements.部位Place水导瓦温Turbi ne Guide Temp推力瓦温上导瓦 Upper Guide Temp下导瓦 Lower Guide TempThrust TempPad允许值C)Allowed values65 C报警Alarm65 C70 C停机stop C50 C报警Alarm50 C55度停机Sto p55 C65度报警Alarm65C70度停机stop70 C65度报警Alarm65C70度停机stop70 C最高值(C)Highest value46.8 C3

22、3.8 C50.7 C44.7 C5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。Upper Guide Adjusti ng Total gap is 0.20mm. Lower Guide Adjusti ng Totalgap is 0.24mm, Arial Adjusting Total gap is 0.28mm.thehighest RunningTurbine bearing swing is 0.1mm.检修排水泵调整至72h

23、,满足运行要求。渗漏排水泵调整至自 8h,满足运行要求。The amount of work the seal leakage sufficeswing suffice operational requirements. Upper bearing swing is 0.098mm, Lower bearing swing is 0.08mm, 6机组运行过程中，主轴密封漏水通过自排，满足设计要求。自动位置，自动启动排水间隔时间为 动位置，自动启动启动排水间隔为In the process of unit running ,op erati onal requireme nts, Plant

24、maintenance drain pump and drain pump leakage sufficeoperational requirements, Plant maintenance drain pump automaticstart- up Every Seve nty-two hours. drain pump leakage automatic start-up Every eight hours.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。In the process of unit running ,unitVabrationsufficeoperation

25、alrequireme nts.序 号No方向direc tion振动允许值(mm ) Vabrati on Allowed values上机架Upp er Guide下机架LowerGuide水导Turbi ne Guide序号No.振动允许值(mm Vabratio n Allowed values定子 机架StatorIchassis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gover ning syst

26、em in no-load running检查调速器测频信号正确，符合要求。Freque ncy sig nal of sp eed gover norsuffice op erati onal requireme nts.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。After all Temp sufficeoperational requirements and Frequency measuringdevice is correct, Switch Operation mode of speed governorbetween manual

27、and automatic,Servomotor has not Sign ifica nt swing. I频率给定的调整范围符合设计要求。Adjustme nt range of Freque ncy give nsuffice op eratio nal requireme nts.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%勺阶跃信号，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。Whenthe speed governor running stable with automatically, Join

28、 different disturbance( 1% 2% 4%Rated frequency). Electrical installations of speed governor canautomatic regulate, running Stable at Rated speed.七、无励磁自动开机和自动停机试验Unit automatic start- up and stop test with no excitati on1、启动机组LCU1空转开机。 automatic start- up un ite 1#.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

29、序满足设计要求。1#, Actioncorrect,signalof Automationsuffice op eratio nal requireme nts.automaticstart- upun itecomponents Feedback correct,机组自动停机。机组转速降至30%额定转速2、机组LCU1自动停机 由机组LCU1发停机指令，(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

30、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。Send out stopping order, unit 1# stop automatic. Whe n sp eed at 30%Ratedspeed (128.6r/min),brake is Putted in automatic, Stopping Action correct.Emerge ncy.SimulateAccide ntIn t

31、he cen ter con trolroom and Low -p ressure room op eratestopping Push butt on On the spot, unit stop and Action correct Mecha nical and electrical Accide nt sig nal ,unit stop andActio n correct .In allstopping Action , Inlet valve is closed, Vanes is close, regulating valve is open ed, closed regul

32、ati ng valve on the sp eed gover nor with Manu ally, others is the same as Normal stopping acti on. Only break pin is breaked in the p rocess of unit stopping action, Brakes do not automatic drop out after Brakes Pu tted in , dropping out Brakes n eed op erat ing with Manu ally On the spot in gover

33、nor room.3、远方开停机命令正确、动作正常。dista nee.All automatic starting-upand stopping action are correct with八、过速试验overs peed test1#机组进行过速试验，上游水库水位 432.5m,尾水水位351m 115%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

34、动摆度值见下表。Overs peed test of Unit 1#suffice op eratio nal requireme nts.ln the p rocess ofovers peed test, Resevoir Level is 432.5m, Tail Water Level is 351m, Alarm sig nal is acce pted at 115% Rated sp eed, stopping sig nal is acce pted at 140%Rated speed and the unit is stopped, Vanesopening 38.56%,

35、the highest freque ncy is 70.01Hz, Sp iralcase p ressure before overs peed test is0.74 MPa, in the p rocess of overs peed test the biggest Sp iral case p ressure is 0.81M Pa, Sp iral case p ressureRate of rise is 9.46%, I niet valve isclosed, Vanes is close, regulat ing valve is open ed, closed regu

36、lati nginsp ect unit Compr ehe nsivly.Fix ing member and Rotat ing membervalve on the speed governor with Manually, Action correct. in the process of overs peed test Run-out and Vabrati on data arelooked over in next table.时间time振动UpperGuide 上导XUpperGuide 上导YUpp er Guide 上导ZLowerGuide下导XLowerGuide下导

37、丫LowerGuide下导ZStator定子XStator定子丫Stator定子ZTurbi neGuide水导XTurb ineGuide水导丫Turb ineGuide水导Z过速前 beforeovers peed222312232213151412212613过速over sp eed475311444814131729354023摆度swing时间timeUpper Guide 上导XUpper Guide 上导YLowerGuide 下导XLowerGuide下导丫Turbi neGuide水导XTurb ineGuide水导丫过速前 beforeovers peed98981762

38、1170100过速over sp eed11011520023377117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。After Stopping unit ,are not bno rmal.九、机组空载试验1# Unit No load Characteristic Test（一）、发电机升流试验 Test of boostingCurrent with generator1、合上发电机接地刀JD2;Put in earth ing switch JD2 of gen era

39、tor.手动开机至额定转速，机组各部运行正常。Start- up the un it to running at Rated sp eed,all are no rmal.励磁变自然通风良好，励磁功率柜风冷回路正常。natural ventilationof Excitatingtransformer works well, Air Cooling Systemin rectifier cubicle works well.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。Adjust Curre nt Set point ofrectifier t

40、o the Least, put in otherExcitati ng po wer.Secon dary curre nt of CT is not Open circuited.合灭磁开关，缓慢升流至(34)滋电机额定电流，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。Close de-excitati on switch,In crease gen erator curre nt slowly at (34)%Rated gen

41、erator curre nt, Secon dary curre nt of CT is not Open circuited.Kee ping on In crease gen erator curre nt slowly at 10% Rated gen erator current,Three-phase currentPhase sequenee and Phase are correct,Amp litude and P hase of gen erator p rotect ion /excitati on /1# tran sformer p rotectio n/Measur

42、i ng circuit are correct.退出电气事故回路保护。drop out electric p rotecti on.在发电机额定电流下，跳灭磁开关检验灭磁情况正常。When gen erator curre nt is Rated, drop out de-excitati on switch ,all are no rmal.&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。Vabrati on and Run-out suffice op eratio nal requireme nts unit running at the Rated current

43、, carb on brush and Collecti ng ring worke correctly.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。gen erator,gen eratorcorrectlyIn the process of Test boostingvoltage with/Excitat ing tran sformer/Total box bus bar worke（二）发电机带主变、GIS 升流试验 Test of boosting Current with MT& GIS1、断开发电机接地刀JD2，合上接地刀FES13;O

44、pen gen erator grounding Knife JD2,close grounding Knife FES13.2、合上发电机断路器 GCB及 GIS断路器CB21 CB11,合上隔离开关DS22 DS21DS11 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。Close GCB / GIS CB21 and CB11,close DS22/ds21/ds11 and DS12 ,open other CB / grou ndi ng Kn ife FES and DS.2、手动开机至额定转速，机组各部运行正常。correct.Start- up un it

45、and running at rate sp eed, unit works3、励磁变自然通风良好，励磁功率柜风冷回路正常。Natural ventilationof Excitatingtransformer works well, Air Cooling Systemin rectifier cubicle works well.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。Adjust Curre nt Set point ofrectifier to the Least, put in otherExcitati ng po wer.Se

46、con dary curre nt of CT is not Open circuited.5、 合灭磁开关，缓慢升流至（34） %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。Close de-excitati on switch,In crease gen erator curre nt slowly at （34）%Rated gen erator curre nt, Secon dary curre nt of CT

47、is not Open circuited.Kee ping on In crease gen erator curre nt slowly at 10% Rated gen erator current,Three-phase currentPhase sequenee and Phase are correct,Amp litude and P hase of gen erator p rotect ion /excitati on /1# tran sformer p rotectio n/Measuri ng circuit are correct.6、退出电气事故回路保护。drop

48、out electric p rotecti on.7、在发电机额定电流下，跳灭磁开关检验灭磁情况正常。When gen erator curre nt is Rated, drop out de-excitati on switch ,all are no rmal.&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。Vabrati on and Run-out suffice op eratio nal requireme nts unit running at the Rated current , carb on brush and Collecti ng ring w

49、orke correctly.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。In the process of Test boostingvoltage with generator,generator/Excitati ng tran sformer/Total box bus bar work correctly.（三）发电机升压试验Test of boost ing voltage with gen erator投入发电机各保护.机组在空转位置运行。Put in all gen erator p rotecti on .Start- up unit

50、 and be running at ratedsp eed and de-excitatio n.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。Measure Residual voltage value after boosting Current with generator,Three-p hase voltagesuffice skills requireme nts.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。Boost

51、 voltage with Manu ally at 25% rated sp eed, inspect gen erator/ Bus bar and circuit, these work correctly . Vabration and Run-out of unit suffice skills requireme nts. Measure Secon dary side voltage of gen erator PT,Three-phase voltage suffice skills requirements. 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。B

52、oost voltage with Manually step by step until speed arrives rated voltage (11KV).检查发电机PT回路相序、电压、频率应正确。Inspect circuit of generator PT, Phase sequence/ Voltage and frequency are correct.测量额定电压下机组的振动与摆度满足设计要求。When Unit run at rated Voltage, Vabration and Run-out suffice skills requirements.定子铁芯各部温度正常。

53、Stator core temp suffice skills requirements. 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。at 50%and 100%保护非电量事故Drop out electric protection. Opende-excitation switch rated Voltage, de-excitation switch works correctly. 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， 停机，停机流程正确。open de-excitation switch ，unit auto

54、maticPut in electric protection. stop urgently.发电机带主变及 GIS 次设备零起升压试验 Test of boosti ng Voltagewith MT & GIS1、将发电机断路器GCE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。DS andClose generator GCB and put GCB in Working position. open other CB, put in Bus PT in Working position.2、合上 GIS 隔离开关 DS22 DS21 DS11

55、 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。Close GIS DS22/ds21/ds11 / DS 12 and DS31 , Close CB21 and CB11,open DS51,inspect other CB / DS and grounding Knife FES In the openning position.开机至空转，合灭磁开关，合发电机出口断路器。Start-up unit and be running at rated speedwith no excitation. clo

56、sede-excitation switch,close generator GCB.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。Boost Voltage at 10% rated Voltage , Main transformer works well, Secondary side amplitude and Phase sequence of Voltage transformer are correct.Seco

57、ndary side Voltage amplitude and Phase sequence of Circuit in protection cubicle/measuring cubicle/ Synchronization device/ Speed governor and excitation are correct, Phase of part I Bus bar is sameas from outer power.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。Boost voltage of

58、 generator with Manually step by step until speed arrives rated voltage (11KV) with GIS and MT, GIS and MTappear no abnormal, temp has not boost suddenly .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。Boost Voltage at rated Voltage ,Secondary side Voltage amplitude / Phasesequence and frequenc

59、y of Circuit in protection cubicle/measuring cubicle/ Synchronization device/ Speed governor and excitation are correct7、检测发电机出口断路器同期电压幅值、相位。sufficingMeasure Voltage amplitude and Phase sequence of generator GCB skills requirements.GCB。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After boosting Voltage test finis

60、h ,cut back Exciting Current untilExciting Current arrive at 0 KV, open thede-excitation switch,open generator Export GCB.十、发电机空载下的励磁调整和试验 Test of Excitating system in no-loadrunning1、机组励磁变已恢复正常接线，机组采用自励方式。Electrical wiring of Unit 1#Exciting transformer is restored.Exciting transformer work with Se