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1、老撾南奔水電站 1#機(jī)組試運(yùn)行Nam Ben HPP 1# Unit running test作報(bào)work report湖北大禹水利水電建設(shè)有限責(zé)任公司HUBEI DAYUSHUILISHUIDIAN JIANSHEYOUXIANZERENGONGSI2016 年 3 月 26 日26date3month2016year table of contents工程概況P roject Overview工作內(nèi)容The work content工作計(jì)劃the work plane啟動(dòng)前的調(diào)試及驗(yàn)收Commissi oning and acce ptance before starte-up充水試驗(yàn)wa
2、ter-filled test機(jī)組首次開機(jī)the first start -up test機(jī)組空轉(zhuǎn)運(yùn)行下調(diào)速系統(tǒng)試驗(yàn)Test of gover ning system in no-load running無勵(lì)磁自動(dòng)開機(jī)和自動(dòng)停機(jī)試驗(yàn)Unit automatic start- up and stop test with no excitati on 過速試驗(yàn)Unit overs peed test機(jī)組空載試驗(yàn)Test of gover ning system in no-load running115KV設(shè)備及主變沖擊受電試驗(yàn)Mai n tran sformer and GIS po wer d
3、istributio n equipment sin gle-grouti ng test機(jī)組同期并網(wǎng)試驗(yàn)Prep arati on for synchroni zati on機(jī)組帶負(fù)荷試驗(yàn)unit test with load機(jī)組甩負(fù)荷試驗(yàn)Load rejectio n test機(jī)組72小時(shí)試運(yùn)行Unit 72h commissi on結(jié)論及存在的問題Con clusi ons and p roblems、工程概況 Project Overview539萬m3,水庫(kù)正常蓄水位 435m,死水位430m,調(diào)節(jié)庫(kù)容318萬 保證出力為5.10MW,年發(fā)電南奔水電站水庫(kù)總庫(kù)容m3,具有日調(diào)節(jié)能力。
4、電站裝機(jī)容量為36MW (3 X 12MW ),3, Normal water level is 430m,量為1.388億kWh,裝機(jī)利用小時(shí) 4081h。Nam Beng HPP ower reservoirs with a total capacity 5.39 million m Lowest level is 430m, Regulating storage is 3180 thousand.二、試運(yùn)行工作內(nèi)容1、充水試驗(yàn) water-filled test2、機(jī)組首次開機(jī) the first start-up test 機(jī)組空轉(zhuǎn)運(yùn)行下調(diào)速系統(tǒng)試驗(yàn)Test of governing
5、system in no-load running 無勵(lì)磁自動(dòng)開機(jī)和自動(dòng)停機(jī)試驗(yàn)Unit automatic start-up and stop test with no excitation 過速試驗(yàn)Unit overspeed test升流試驗(yàn)Test of increasing current 機(jī)組空載試驗(yàn)Test of boosting voltage 發(fā)電機(jī)帶主變及 GIS 一次設(shè)備零起升壓試驗(yàn)Generator increasing current test with main transformer and GIS 115KV設(shè)備及主變沖擊受電試驗(yàn)Main transformer
6、 and GIS power distribution equipment single-grouting test 機(jī)組同期并網(wǎng)試驗(yàn)Preparation for synchronization 機(jī)組帶負(fù)荷試驗(yàn) unit test with load 機(jī)組甩負(fù)荷試驗(yàn) Load rejection test 機(jī)組 72 小時(shí)試運(yùn)行 Unit 72h commission三、1#機(jī)組試運(yùn)行大事記 the Eve nt recordco of mmissi oning of unit 1充水試驗(yàn)(廠房段)water-filled test2016年1月17日1月18日機(jī)組首次開機(jī) the firs
7、t start-up test2016年1月18日機(jī)組空轉(zhuǎn)運(yùn)行下調(diào)速系統(tǒng)試驗(yàn)Test of gover ning system in no-load running2016年1月18日無勵(lì)磁自動(dòng)開機(jī)和自動(dòng)停機(jī)試驗(yàn)Unit automatic start- up and stop test with noexcitati on2016年1月19日機(jī)組過速試驗(yàn) Uni t overs peed test2016年1月19日發(fā)電機(jī)升流試驗(yàn) Test of increasing current2016年1月20日發(fā)電機(jī)帶主變及GIS 次設(shè)備零起升壓試驗(yàn)Gen erator in creas ingcu
8、rre nttest withmain tran sformer and GIS2016年1月20日機(jī)組空載試驗(yàn) Test of boosting voltage2016年1月20日115kV設(shè)備及主變沖擊受電試驗(yàn)Main transformerand GIS power distributionequipment sin gle-grouti ng test2016年3月9日機(jī)組同期并網(wǎng)試驗(yàn) Preparationforsynchroni zati on2016年3月10日機(jī)組帶負(fù)荷試驗(yàn)unit test with load2016年3月10日機(jī)組甩負(fù)荷試驗(yàn)Load rejection te
9、st2016年3月10日機(jī)組72小時(shí)試運(yùn)行Unit 72h commission7月25日7月27日四、充水試驗(yàn) water-filled test流道充水分兩步進(jìn)行,第一步,確定機(jī)組上游蝶閥處于關(guān)閉狀態(tài),鎖定蝶閥機(jī)械 鎖定,蝶閥處于就地位置;確定活動(dòng)導(dǎo)葉處于關(guān)閉狀態(tài),調(diào)速器處于就地位置。 打開尾水平壓充水閥、打開蝸殼排水閥、打開蝸殼排氣閥,對(duì)尾水管及蝸殼充水。 檢查尾水管、尾水進(jìn)人門、蝸殼進(jìn)人門、蝶閥下游側(cè),蝶閥伸縮節(jié)、導(dǎo)水機(jī)構(gòu)各 組合面等無滲漏,工作密封漏水量通過自流滿足排水要求,廠房檢修排水泵、滲漏排水泵能滿足排水要求,再根據(jù)尾水開啟程序進(jìn)行閘門開啟操作,開啟尾水閘 門。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,確認(rèn)蝶閥手動(dòng)旁通閥處于關(guān)閉,關(guān)閉蝸殼排水閥、關(guān)閉尾水平壓閥,打 開液壓旁通閥,再慢慢打開手動(dòng)旁通閥,向蝸殼充水,觀察尾水管、尾水進(jìn)人門、 蝸殼進(jìn)人門、蝶閥下游側(cè),蝶閥伸縮節(jié)、導(dǎo)水機(jī)構(gòu)各組合面等無滲漏,工作密封 漏水量通過自流滿足排水要求,廠房檢修排水泵、滲漏排水泵能滿
13、足排水要求, 再根據(jù)進(jìn)水口閘門開啟程序進(jìn)行閘門開啟操作,開啟進(jìn)水口閘門。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、機(jī)組首次開機(jī)unit first start-up按照啟動(dòng)試運(yùn)行規(guī)程、1#機(jī)組啟動(dòng)試運(yùn)行大綱中機(jī)組首次啟動(dòng)和空轉(zhuǎn)試驗(yàn)的 要求,對(duì)1#機(jī)組各部位、各系統(tǒng)進(jìn)行檢查,
15、使其處于手動(dòng)開機(jī)狀態(tài),滿足手動(dòng) 開機(jī)要求后,正式開始首次啟動(dòng)和空轉(zhuǎn)試驗(yàn)。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手動(dòng)打開主軸密封排水閥,退出空氣圍帶、風(fēng)閘,頂起轉(zhuǎn)子5-7mm保持10min, 保證推力瓦潤(rùn)滑。落轉(zhuǎn)子,打開蝶閥,打開
16、技術(shù)供水電動(dòng)閥,調(diào)整技術(shù)供水水壓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手動(dòng)拔出接力器鎖定,打開調(diào)速器的導(dǎo)葉開
17、度限制機(jī)構(gòu), 待機(jī)組開始轉(zhuǎn)動(dòng)后將 導(dǎo)葉關(guān)回,由各部觀察人員檢查和確認(rèn)機(jī)組轉(zhuǎn)動(dòng)與靜止部件之間有無摩擦、碰撞及其它異常情況。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確認(rèn)各部正常后再次打開導(dǎo)葉啟動(dòng)機(jī)組。當(dāng)機(jī)組轉(zhuǎn)速升至接近50%定轉(zhuǎn)速時(shí) 暫停升速,觀察各部無異常后繼續(xù)升速,機(jī)組在額
18、定轉(zhuǎn)速下運(yùn)行。上游水庫(kù)水位432.5m,尾水水位351m機(jī)組額定轉(zhuǎn)速下的導(dǎo)葉開度 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在機(jī)組升速過程中派專人嚴(yán)密監(jiān)視推力瓦和各導(dǎo)軸瓦的溫度,無急劇升高或下降現(xiàn)象。機(jī)組達(dá)到額定轉(zhuǎn)速后,前階段每隔 5分鐘記錄瓦溫,之后可適當(dāng)延長(zhǎng)時(shí) 間間隔,機(jī)組空轉(zhuǎn)4小時(shí)后瓦溫穩(wěn)定,此時(shí)的最高溫度見下表.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水導(dǎo)瓦溫Turbi ne Guide Temp推力瓦溫上導(dǎo)瓦 Upper Guide Temp下導(dǎo)瓦 Lower Guide TempThrust TempPad允許值C)Allowed values65 C報(bào)警Alarm65 C70 C停機(jī)stop C50 C報(bào)警Alarm50 C55度停機(jī)Sto p55 C65度報(bào)警Alarm65C70度停機(jī)stop70 C65度報(bào)警Alarm65C70度停機(jī)stop70 C最高值(C)Highest value46.8 C3
22、3.8 C50.7 C44.7 C5機(jī)組導(dǎo)瓦間隙調(diào)整值為,上導(dǎo)瓦綜合間隙 0.20mm下導(dǎo)瓦綜合間隙0.24mm 水導(dǎo)瓦綜合間隙0.28mm實(shí)際最大運(yùn)行擺度上導(dǎo)軸承0.098mm,下導(dǎo)軸承0.08mm 水導(dǎo)軸承0.1mm滿足規(guī)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.檢修排水泵調(diào)整至72h
23、,滿足運(yùn)行要求。滲漏排水泵調(diào)整至自 8h,滿足運(yùn)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機(jī)組運(yùn)行過程中,主軸密封漏水通過自排,滿足設(shè)計(jì)要求。自動(dòng)位置,自動(dòng)啟動(dòng)排水間隔時(shí)間為 動(dòng)位置,自動(dòng)啟動(dòng)啟動(dòng)排水間隔為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機(jī)組運(yùn)行過程中,機(jī)組各部位振動(dòng)值最大值滿足規(guī)范及設(shè)計(jì)要求。In the process of unit running ,unitVabrationsufficeoperation
25、alrequireme nts.序 號(hào)No方向direc tion振動(dòng)允許值(mm ) Vabrati on Allowed values上機(jī)架Upp er Guide下機(jī)架LowerGuide水導(dǎo)Turbi ne Guide序號(hào)No.振動(dòng)允許值(mm Vabratio n Allowed values定子 機(jī)架StatorIchassis定子 鐵芯StatorCore1水平level0.050.0230.0230.02630.030.0150.0092垂直plumb0.040.0120.0130.01340.020.0120.009六、機(jī)組空轉(zhuǎn)運(yùn)行下調(diào)速系統(tǒng)試驗(yàn)gover ning syst
26、em in no-load running檢查調(diào)速器測(cè)頻信號(hào)正確,符合要求。Freque ncy sig nal of sp eed gover norsuffice op erati onal requireme nts.機(jī)組瓦溫基本穩(wěn)定后,調(diào)速器測(cè)頻裝置工作正常,進(jìn)行調(diào)速器手動(dòng)和自動(dòng)切換, 接力器無明顯擺動(dòng)。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頻率給定的調(diào)整范圍符合設(shè)計(jì)要求。Adjustme nt range of Freque ncy give nsuffice op eratio nal requireme nts.調(diào)速器空載擾動(dòng)試驗(yàn)符合設(shè)計(jì)要求,調(diào)速器自動(dòng)運(yùn)行穩(wěn)定時(shí),加入擾動(dòng)量分別為 1% 2% 4%勺階躍信號(hào),調(diào)速器電氣裝置能可靠的進(jìn)行自動(dòng)調(diào)節(jié),調(diào)節(jié)過 程正常,最終能夠穩(wěn)定在額定轉(zhuǎn)速下正常運(yùn)轉(zhuǎn)。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、無勵(lì)磁自動(dòng)開機(jī)和自動(dòng)停機(jī)試驗(yàn)Unit automatic start- up and stop test with no excitati on1、啟動(dòng)機(jī)組LCU1空轉(zhuǎn)開機(jī)。 automatic start- up un ite 1#.按照機(jī)組自動(dòng)開機(jī)流程,檢查各自動(dòng)化元件動(dòng)作情況和信號(hào)反饋正常。開機(jī)程
29、序滿足設(shè)計(jì)要求。1#, Actioncorrect,signalof Automationsuffice op eratio nal requireme nts.automaticstart- upun itecomponents Feedback correct,機(jī)組自動(dòng)停機(jī)。機(jī)組轉(zhuǎn)速降至30%額定轉(zhuǎn)速2、機(jī)組LCU1自動(dòng)停機(jī) 由機(jī)組LCU1發(fā)停機(jī)指令,(128.6r/min )時(shí)制動(dòng)器正常投入。機(jī)組停機(jī)過程中各停機(jī)流程與設(shè)計(jì)順序一致?,F(xiàn)地、機(jī)旁、中控室等部位,檢查緊急事故停機(jī)按鈕動(dòng)作可靠。模擬機(jī)組各種機(jī)械、電氣事故及故障信號(hào),進(jìn)行事故停機(jī)流程試驗(yàn),事故和故障信號(hào)響應(yīng)正確,事故停機(jī)信號(hào)的動(dòng)作
30、流程正確可靠。事故停機(jī)均關(guān)閉蝶閥,關(guān)閉活動(dòng)導(dǎo)葉,打開調(diào)壓閥,調(diào)壓閥復(fù)歸在調(diào)速器室調(diào)速器控制柜手動(dòng)復(fù)歸,其余流程與正常停機(jī)相同。剪斷銷剪斷信號(hào)出現(xiàn)在機(jī)組停機(jī)過程中,停機(jī)流程與其他事故停機(jī)相同,不 同之處為停機(jī)后制動(dòng)器不復(fù)歸,待故障消除后手動(dòng)復(fù)歸。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、遠(yuǎn)方開停機(jī)命令正確、動(dòng)作正常。dista nee.All automatic starting-upand stopping action are correct with八、過速試驗(yàn)overs peed test1#機(jī)組進(jìn)行過速試驗(yàn),上游水庫(kù)水位 432.5m,尾水水位351m 115%定轉(zhuǎn)速收 到報(bào)警信號(hào),140%自動(dòng)緊停動(dòng)作,導(dǎo)葉開度38.56%,最高速度70.01Hz,蝸殼壓 力過速前0.74MPa,過速中最大蝸殼壓力0.81MPa,蝸殼壓力上升率9.46%,蝶 閥關(guān)閉,導(dǎo)葉關(guān)閉,調(diào)壓閥全開,流程正常,停機(jī)后檢查機(jī)組正常,調(diào)壓閥調(diào)速 器室現(xiàn)地復(fù)歸。過速過程中最大振
34、動(dòng)擺度值見下表。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.時(shí)間time振動(dòng)UpperGuide 上導(dǎo)XUpperGuide 上導(dǎo)YUpp er Guide 上導(dǎo)ZLowerGuide下導(dǎo)XLowerGuide下導(dǎo)
37、丫LowerGuide下導(dǎo)ZStator定子XStator定子丫Stator定子ZTurbi neGuide水導(dǎo)XTurb ineGuide水導(dǎo)丫Turb ineGuide水導(dǎo)Z過速前 beforeovers peed222312232213151412212613過速over sp eed475311444814131729354023擺度swing時(shí)間timeUpper Guide 上導(dǎo)XUpper Guide 上導(dǎo)YLowerGuide 下導(dǎo)XLowerGuide下導(dǎo)丫Turbi neGuide水導(dǎo)XTurb ineGuide水導(dǎo)丫過速前 beforeovers peed98981762
38、1170100過速over sp eed11011520023377117過速試驗(yàn)停機(jī)后,全面檢查機(jī)組各部分,如轉(zhuǎn)子聯(lián)軸螺栓、磁極連接、磁極引線、 阻尼環(huán)、組合軸承、水導(dǎo)軸承、主軸密封等轉(zhuǎn)動(dòng)部分,未發(fā)現(xiàn)螺栓松動(dòng)和焊縫裂 開等異?,F(xiàn)象。After Stopping unit ,are not bno rmal.九、機(jī)組空載試驗(yàn)1# Unit No load Characteristic Test(一)、發(fā)電機(jī)升流試驗(yàn) Test of boostingCurrent with generator1、合上發(fā)電機(jī)接地刀JD2;Put in earth ing switch JD2 of gen era
39、tor.手動(dòng)開機(jī)至額定轉(zhuǎn)速,機(jī)組各部運(yùn)行正常。Start- up the un it to running at Rated sp eed,all are no rmal.勵(lì)磁變自然通風(fēng)良好,勵(lì)磁功率柜風(fēng)冷回路正常。natural ventilationof Excitatingtransformer works well, Air Cooling Systemin rectifier cubicle works well.將勵(lì)磁調(diào)節(jié)器電流給定降至最小,投入它勵(lì)電源。檢查短路范圍內(nèi)的 CT二次殘 余電流,無開路現(xiàn)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.合滅磁開關(guān),緩慢升流至(34)滋電機(jī)額定電流,檢查升流范圍內(nèi)各 CT二次 無開路,繼續(xù)升流至10%額定電流,檢查各CT二次三相電流平衡相位正確;檢 查測(cè)量表計(jì)接線及指示正確;檢查發(fā)電機(jī)保護(hù)、勵(lì)磁變壓器保護(hù)、主變保護(hù)、測(cè) 量回路的電流幅值相位顯示正確。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.退出電氣事故回路保護(hù)。drop out electric p rotecti on.在發(fā)電機(jī)額定電流下,跳滅磁開關(guān)檢驗(yàn)滅磁情況正常。When gen erator curre nt is Rated, drop out de-excitati on switch ,all are no rmal.&額定電流下的機(jī)組振動(dòng)與擺度滿足設(shè)計(jì)要求,碳刷與集電環(huán)工作情況正常。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、試驗(yàn)過程中檢查發(fā)電機(jī)主回路、勵(lì)磁變、共箱母線等各部位運(yùn)行正常,無異 常聲響或溫升。gen erator,gen eratorcorrectlyIn the process of Test boostingvoltage with/Excitat ing tran sformer/Total box bus bar worke(二)發(fā)電機(jī)帶主變、GIS 升流試驗(yàn) Test of boosting Current with MT& GIS1、斷開發(fā)電機(jī)接地刀JD2,合上接地刀FES13;O
44、pen gen erator grounding Knife JD2,close grounding Knife FES13.2、合上發(fā)電機(jī)斷路器 GCB及 GIS斷路器CB21 CB11,合上隔離開關(guān)DS22 DS21DS11 DS12,檢查升流范圍以外的斷路器、隔離開關(guān)、接地開關(guān)在分閘位置。Close GCB / GIS CB21 and CB11,close DS22/ds21/ds11 and DS12 ,open other CB / grou ndi ng Kn ife FES and DS.2、手動(dòng)開機(jī)至額定轉(zhuǎn)速,機(jī)組各部運(yùn)行正常。correct.Start- up un it
45、and running at rate sp eed, unit works3、勵(lì)磁變自然通風(fēng)良好,勵(lì)磁功率柜風(fēng)冷回路正常。Natural ventilationof Excitatingtransformer works well, Air Cooling Systemin rectifier cubicle works well.4、將勵(lì)磁調(diào)節(jié)器電流給定降至最小,投入它勵(lì)電源。檢查短路范圍內(nèi)的CT二次殘余電流,無開路現(xiàn)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、 合滅磁開關(guān),緩慢升流至(34) %發(fā)電機(jī)額定電流,檢查升流范圍內(nèi)各CT 二次無開路,繼續(xù)升流至10%額定電流,檢查各CT二次三相電流平衡相位正確; 檢查測(cè)量表計(jì)接線及指示正確;檢查發(fā)電機(jī)保護(hù)、勵(lì)磁變壓器保護(hù)、主變保護(hù)、測(cè)量回路的電流幅值相位顯示正確。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、退出電氣事故回路保護(hù)。drop
48、out electric p rotecti on.7、在發(fā)電機(jī)額定電流下,跳滅磁開關(guān)檢驗(yàn)滅磁情況正常。When gen erator curre nt is Rated, drop out de-excitati on switch ,all are no rmal.&額定電流下的機(jī)組振動(dòng)與擺度滿足設(shè)計(jì)要求,碳刷與集電環(huán)工作情況正常。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、試驗(yàn)過程中檢查發(fā)電機(jī)主回路、勵(lì)磁變、共箱母線等各部位運(yùn)行正常,無異 常聲響或溫升。In the process of Test boostingvoltage with generator,generator/Excitati ng tran sformer/Total box bus bar work correctly.(三)發(fā)電機(jī)升壓試驗(yàn)Test of boost ing voltage with gen erator投入發(fā)電機(jī)各保護(hù).機(jī)組在空轉(zhuǎn)位置運(yùn)行。Put in all gen erator p rotecti on .Start- up unit
50、 and be running at ratedsp eed and de-excitatio n.測(cè)量發(fā)電機(jī)升流試驗(yàn)后的殘壓值,并檢查三相電壓的對(duì)稱性滿足試驗(yàn)要求。Measure Residual voltage value after boosting Current with generator,Three-p hase voltagesuffice skills requireme nts.手動(dòng)升壓至25%額定電壓,檢查:發(fā)電機(jī)及引出母線、分支回路等設(shè)備帶電正常。 機(jī)組各部振動(dòng)及擺度正常。測(cè)量發(fā)電機(jī) PT二次側(cè)三相電壓相序、幅值正常,測(cè) 量PT二次開口三角電壓值滿足設(shè)計(jì)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. 逐級(jí)升壓至發(fā)電機(jī)額定電壓,檢查帶電范圍內(nèi)一次設(shè)備的運(yùn)行情況正常。B
52、oost voltage with Manually step by step until speed arrives rated voltage (11KV).檢查發(fā)電機(jī)PT回路相序、電壓、頻率應(yīng)正確。Inspect circuit of generator PT, Phase sequence/ Voltage and frequency are correct.測(cè)量額定電壓下機(jī)組的振動(dòng)與擺度滿足設(shè)計(jì)要求。When Unit run at rated Voltage, Vabration and Run-out suffice skills requirements.定子鐵芯各部溫度正常。
53、Stator core temp suffice skills requirements. 退出電氣事故回路保護(hù)。 分別在 50%、 100%發(fā)電機(jī)額定電壓下跳滅磁開關(guān),檢查 滅弧情況正常。at 50%and 100%保護(hù)非電量事故Drop out electric protection. Opende-excitation switch rated Voltage, de-excitation switch works correctly. 投入電氣事故回路保護(hù)。 試驗(yàn)完畢后模擬發(fā)動(dòng)機(jī)偷跳滅磁開關(guān), 停機(jī),停機(jī)流程正確。open de-excitation switch ,unit auto
54、maticPut in electric protection. stop urgently.發(fā)電機(jī)帶主變及 GIS 次設(shè)備零起升壓試驗(yàn) Test of boosti ng Voltagewith MT & GIS1、將發(fā)電機(jī)斷路器GCE置工作位置,并處于合閘位置,斷開所有的接地開關(guān)和 其它分支的斷路器,母線PT處于工作位置。DS andClose generator GCB and put GCB in Working position. open other CB, put in Bus PT in Working position.2、合上 GIS 隔離開關(guān) DS22 DS21 DS11
55、 DS12 DS31 及斷路器 CB21 CB11 分 DS51 隔離開關(guān),檢查升壓范圍以外的斷路器 隔離開關(guān) 接地開關(guān)在分閘位 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.開機(jī)至空轉(zhuǎn),合滅磁開關(guān),合發(fā)電機(jī)出口斷路器。Start-up unit and be running at rated speedwith no excitation. clo
56、sede-excitation switch,close generator GCB.零起升壓至 10%的發(fā)電機(jī)額定電壓,檢查主變工作情況,檢測(cè)相關(guān)電壓互感 器二次及開口三角的幅值 相序,檢測(cè)電壓互感器送至保護(hù) 測(cè)量 同期 調(diào)速 器、勵(lì)磁的電壓幅值、相序,確定 11kV第1段母線的相序與外來電源一致。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、逐步升壓,分別在 25%、 50%、75%、100%發(fā)電機(jī)額定電壓下檢查帶電一次設(shè) 備及主變工作情況無異響、溫度突然升高等問題。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、在額定電壓時(shí),檢測(cè)電壓互感器送至保護(hù)、測(cè)量、同期、調(diào)速器、勵(lì)磁的電 壓幅值、相位、頻率滿足設(shè)計(jì)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、檢測(cè)發(fā)電機(jī)出口斷路器同期電壓幅值、相位。sufficingMeasure Voltage amplitude and Phase sequence of generator GCB skills requirements.GCB。8、升壓完畢,降低勵(lì)磁電流至零,分滅磁開關(guān),分發(fā)電機(jī)出口斷路器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、發(fā)電機(jī)空載下的勵(lì)磁調(diào)整和試驗(yàn) Test of Excitating system in no-loadrunning1、機(jī)組勵(lì)磁變已恢復(fù)正常接線,機(jī)組采用自勵(lì)方式。Electrical wiring of Unit 1#Exciting transformer is restored.Exciting transformer work with Se
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