UCanwin yiNkampani yeNkampani yoTshintsho lwaMandla kunye noMvelisi woMbane woMbane
Ulwimi
UCanwin yiNkampani yeNkampani yoTshintsho lwaMandla kunye noMvelisi woMbane woMbane
1. Ziziphi iinqununu eziphambili ze-oyile-immersed transformers?
Impendulo: Izinto eziphambili ze-transformer zezi: i-iron core, i-winding, itanki yamafutha, i-oyile pillow, i-respirator, umbhobho wokukhusela ukuqhuma, i-radiator, i-sleeve ye-insulating, i-tap change, i-gas relay, i-thermometer, i-oyile ye-net, njl.
1. Ziziphi iinqununu eziphambili ze-oyile-immersed transformers?
Impendulo: Izinto eziphambili ze-transformer zezi: i-iron core, i-winding, itanki yamafutha, i-oyile pillow, i-respirator, umbhobho wokukhusela ukuqhuma, i-radiator, i-sleeve ye-insulating, i-tap change, i-gas relay, i-thermometer, i-oyile ye-net, njl.
2. Yintoni i-transformer egqunywe ngokupheleleyo? Yintoni i-semi-insulating transformer?
Impendulo: I-Semi-insulation iyona nto iphambili yokugquma i-winding kufuphi ne-neutral point ye-transformer, kwaye inqanaba layo lokugquma liphantsi kunelo lokuphela kwe-windings. Ngokuchasene noko, ngokuqhelekileyo umgangatho wokufakelwa kwentloko ye-transformer kunye nomsila we-windings ubizwa ngokuba yi-insulation epheleleyo.
3. Yintoni umsebenzi oyintloko we-transformer kwinkqubo yamandla?
Impendulo: Indima ye-transformer kwinkqubo yamandla kukuguqula i-voltage ukuququzelela ukuhanjiswa kwamandla. Emva kokuba i-voltage iphakanyiswe yi-transformer ye-step-up, ilahleko yomgca ingancitshiswa, uqoqosho lokuhanjiswa kwamandla lunokuphuculwa, kwaye injongo yokuhanjiswa kwamandla okude kunokufezekiswa. I-transformer ye-step-down inokutshintsha i-voltage ephezulu kwi-voltage efunwa ngumsebenzisi kuwo onke amanqanaba ukuhlangabezana neemfuno zomsebenzisi.
4. Zeziphi iingozi zokubeka iintanda?
Impendulo: Ukuqhekeka kwi-casing kuya kunciphisa amandla e-insulation, oko kunokubangela umonakalo ongakumbi kwi-insulation de kube konke ukuphuka. Isingxobo samanzi sinokugqabhuka xa amanzi akwindawo eqhekekileyo engumkhenkce. Ingabonwa ukuba i-casing crack isongela kakhulu ekusebenzeni okukhuselekileyo kwe-transformer.
5. Uthini umahluko phakathi kwendawo engathathi hlangothi kunye nenqaku elinguziro kunye nomgca onguziro?
Impendulo: Indawo yoxhumo oluqhelekileyo apho iintloko (okanye imisila) yee-windings ezithathu zidibene kunye zibizwa ngokuba yindawo engathathi hlangothi yonikezelo lwamandla. Xa indawo engathathi hlangothi yonikezelo lwamandla inonxibelelwano oluhle kunye nesixhobo sokumisa, indawo engathathi hlangothi ibizwa ngokuba yi-zero point; kwaye ucingo olutsalwe kwindawo engu-zero lubizwa ngokuba ngumgca ongathathi hlangothi.
6. Kutheni kulula ukufudumeza isidibanisi sebhari yangaphandle?
IMPENDULO: Iibhasi ezingaphandle zidla ngokukhukuliswa ngumoya, imvula, ikhephu, ukukhanya kwelanga kunye nomkhenkce. Zonke ezi zinto zinokukhuthaza ukukhawuleza kwe-oxidation kunye nokugqwala kwamalungu e-busbar, ukwenzela ukuba ukuchasana koqhagamshelwano kwamalungu kwanda kwaye ukushisa kuphakama.
7. Ziziphi iimpawu zekhemikhali zegesi ye-SF6?
Impendulo: Igesi ye-SF6 ayinyibiliki emanzini kunye neoli ye-transformer, kwaye ayifuni ukusebenzisana ne-oksijini, i-argon, i-aluminium kunye nezinye izinto ezininzi kumaqondo okushisa ashushu. Nangona kunjalo, phantsi kwesenzo se-arc kunye ne-corona, igesi ye-SF6 iya kubola ukuze ivelise i-low-fluorine compounds, enokubangela umonakalo kwizinto ezikhuselayo, kwaye ezi zixhobo eziphantsi kwe-fluorine ziyi-gases enetyhefu kakhulu. Indlela yokubola kwe-SF6 inento eninzi yokwenza nokufuma, ngoko ke amanyathelo okuphelisa umswakama kufuneka athathwe.
8. Yintoni umsebenzi weoli yomqamelo we-transformer?
Impendulo: Xa umthamo weoli ye-transformer ikhula okanye iyancipha ngokutshintsha kweoli yeoli, i-oyile pillow idlala indima yokugcina ioli kunye nokuzaliswa kweoli, enokuqinisekisa ukuba itanki yeoli igcwele ioli. iyancipha, ithoba isantya sokuwohloka kweoyile. Kukwakho negeyiji yomgangatho we-oyile ecaleni komqamelo we-oyile, ekwaziyo ukujonga utshintsho kwinqanaba le-oyile.
9. Kutheni le nto isiseko sentsimbi ye-transformer kufuneka sisekelwe?
Impendulo: Ingundoqo yentsimbi kunye nezinye izesekeli ze-transformer zikwintsimi yombane ejikeleze i-winding ngexesha lokusebenza. Ukuba azisekelwanga, undoqo wentsimbi kunye nezinye izincedisi ngokuqinisekileyo ziya kubangela amandla ombane athile. Ngaphantsi kwesenzo se-voltage esetyenzisiweyo, xa i-voltage induced idlula i-voltage yokukhupha umhlaba, i-discharge phenomenon iya kwenzeka. Ukuze ugweme ukukhutshwa kwangaphakathi kwe-transformer, isiseko sentsimbi kufuneka sisekelwe phantsi.
10. Kutheni ufaka isethi ye-ZnO yokubamba phakathi kwe-capacitor yamandla kunye ne-breaker circuit?
Impendulo: Ukufakwa kwe-ZnO arrester kunokuthintela ukugqithiswa komsebenzi onokuthi kwenzeke xa i-capacitor yamandla itsalwa kwaye ivaliwe, kwaye uqinisekise ukusebenza ngokukhuselekileyo kwezixhobo zombane.
11. Uthini umahluko phakathi kwamaxabiso abonakaliswe imitha yamandla ombane kunye nemitha yamandla?
Impendulo: Imitha yombane ibonisa ubungakanani bamandla ombane akhutshiweyo, athunyelwa kwaye asetyenziswe ngokukhawuleza ukuveliswa, ukubonelela kunye nezixhobo zokusetyenziswa; kunye nexabiso lemitha yamandla ombane sisixa esongezelekayo samandla ombane akhutshiweyo, athunyelwa kwaye asetyenziswe ngexesha elithile.
12. Zeziphi iimfuno zeebhetri kwiipakethi zebhetri ezinxuseneyo?
Impendulo: I-electromotive force yebhetri nganye kwi-parallel ibhetri kufuneka ilingane, ngaphandle koko ibhetri ene-electromotive force enkulu iya kukhupha ibhetri ngamandla amancinci e-electromotive, yenze umsinga ojikelezayo ngaphakathi kwebhetri. Ukongezelela, ukuchasana kwangaphakathi kwebhetri nganye kufuneka kube yinto efanayo, ngaphandle koko ukukhutshwa kwangoku kwebhetri kunye nokuchasana okuncinci kwangaphakathi kuya kuba kukhulu kakhulu. Iibhetri ezinamaqondo ahlukeneyo amadala kunye namatsha akufuneki zisetyenziswe ngokufanayo.
13. Yintoni umsebenzi wesixhobo somqondiso ophakathi?
Impendulo: Isignali esembindini sisixhobo somqondiso esibeka iliso ekusebenzeni kwesixhobo sombane kwisitishi. Ithumela isandi kunye nemiqondiso yokukhanya ngokweempawu zempazamo zezixhobo zombane, ukwazisa abaqhubi ukuba bafune ngokukhawuleza, benze izigwebo ezichanekileyo kunye nokujongana nabo, kwaye baqinisekise ukusebenza ngokukhuselekileyo kwezixhobo.
14. Kutheni umbane usekho ngexesha elifutshane xa ipeni yokuvavanya yombane isetyenziselwa ukuhlolwa kombane emva kokumka kombane kwintambo yentambo?
Impendulo: Umgca wekhebula ulingana ne-capacitor. Emva kokusilela kombane, kusekho intlawulo eshiyekileyo emgceni, kwaye kusekho umahluko onokwenzeka emhlabeni. Ukuba umbane unqunyulwe ngokukhawuleza, ipeni yokuvavanya iya kubonisa ukuba kukho umbane kumgca. Ngoko ke, kufuneka ikhutshwe ngokupheleleyo, kwaye ucingo lokumisa lunokufakwa kuphela emva kokuba umbane uvavanywe ngaphandle kombane.
15. Yintoni i-overvoltage yangaphakathi?
Impendulo: Ukugqithisa kwangaphakathi yinkqubo yenguqu apho imeko yenkqubo iguquka ngokukhawuleza ngenxa yokusebenza, ingozi okanye ezinye izizathu, kwaye kuya kubakho inkqubo yokuguquka ukusuka kwelinye ilizwe elizinzile ukuya kwelinye ilizwe elizinzile. Ngethuba le nkqubo, kunokubakho ukugqithisa okuyingozi kwinkqubo. . Ezi overvoltages zibangelwa yi-oscillation kunye nokuqokelela kwamandla e-electromagnetic kwinkqubo, ngoko kuthiwa yi-overvoltages yangaphakathi.
16. Yintoni umsebenzi weringi yokulinganisa ephezulu yesibambisi sevalve yama-220kV?
Impendulo: Emva kokufaka i-voltage equalizing ring, yenza ukuhanjiswa kwe-voltage ye- arrester.
17. Yintoni uqhagamshelo elinguziro lokhuseleko? Ziziphi iingenelo?
Impendulo: Uxhumo lwe-zero yokukhusela yindlela yokudibanisa ngokuthe ngqo iindawo zetsimbi zezixhobo ezingahlawuliswanga phantsi kweemeko eziqhelekileyo kwisistim ngeengcingo. Thatha indlela yokukhusela zero ukuqinisekisa ukhuseleko lomntu kwaye uthintele iingozi zokothuka kombane.
18. Yintoni umsebenzi we-high-voltage circuit breaker?
Impendulo: I-high-voltage circuit breaker ayikwazi ukunqumla kuphela kwaye idibanise i-no-load current kunye nomthwalo wangoku kwi-high-voltage circuit phantsi kweemeko eziqhelekileyo, kodwa isebenzisane nesixhobo sokukhusela kunye nesixhobo esizenzekelayo xa inkqubo ihluleka ukusika ngokukhawuleza. ukucima impazamo kwaye uthintele ingozi ekukhuleni. Qinisekisa ukusebenza ngokukhuselekileyo kwenkqubo.
19. Yiyiphi indima edlalwa yinkqubo ye-DC kwisitishi?
Impendulo: Inkqubo ye-DC ibonelela ngamandla athembekileyo e-DC okulawula, umqondiso, ukukhuselwa kwe-relay, isixhobo esizenzekelayo kunye nezibane eziphuthumayo kwisikhululo esingaphantsi. Ikwabonelela ngamandla okusebenza athembekileyo ekusebenzeni. Ingaba inkqubo ye-DC inokwethenjelwa okanye ayidlali indima ebalulekileyo ekusebenzeni ngokukhuselekileyo kwesitishi esingaphantsi kwaye sisiqinisekiso sokusebenza ngokukhuselekileyo kwesitishi.
20. Ukuze ugcine ibhetri ikwimo yokutshajwa ngokupheleleyo ngexesha lokutshaja okuqhelekileyo kwefloat, kufuneka ibe yintoni i-terminal voltage yebhetri nganye?
Impendulo: Ukuze ugcine ibhetri kwindawo epheleleyo, ibhetri nganye eqhagamshelwe kwibhasi ye-DC kufuneka igcine i-voltage ye-2.15V ngexesha lokutshaja i-float.
21. Kutheni ufaka isixhobo sokubeka iliso kwi-DC?
Impendulo: Ukusebenza kwexesha elide lepoli enye esekelwe kwinkqubo ye-DC ye-substation ayivumelekanga, kuba ukuba i-grounding iphinda ibuyele kwenye indawo yesibonda esifanayo, inokubangela ukungasebenzi kakuhle kwesixhobo somqondiso, ukukhuselwa kwe-relay kunye nokulawula isiphaluka. Ukongeza, xa enye ipali ibekwe phantsi, ukuba enye ipali iphinde ibekwe phantsi, iya kubangela isekethe emfutshane yeDC.
22. Cacisa ukuba yintoni intlawulo edadayo?
Impendulo: Ukutshaja okudadayo kufakwe kwiiyunithi ezimbini zokutshaja, enye yeyona yunithi yokutshaja kwaye enye yiyunithi yokutshaja edadayo. Ukutshaja i-float kukubuyekeza ilahleko yokuzikhupha kwebhetri, ukuze ipakethi yebhetri isoloko ikwimo egcweleyo.
23. Yintoni umsebenzi womgibe wamaza?
Impendulo: I-wave choke yinto efunekayo yonxibelelwano lwe-high-frequency kunxibelelwano lomthwali kunye nokukhuselwa kwe-frequency ephezulu. Ikhusela ukuvuza kwe-high-frequency current kwamanye amasebe kwaye inciphisa ukulahleka kwamandla okuhamba rhoqo.
24. Zeziphi izinto ezenzekayo xa inkqubo ijikeleza?
Impendulo: Iziganeko xa inkqubo ijikeleza:
(1) Izalathisi zangoku, i-voltmeter kunye nemitha yombane kwisikhululo esingaphantsi zijiwulwa ngamaxesha athile. Ukuba kukho umgca wokubopha, i-swing yemitha yeyona nto ibonakalayo.
(2) Xa isondela kumbindi we-oscillation wenkqubo, kokukhona ujingi wombane omkhulu, kunye nokudanyaza kwesibane sokukhanya kubonakala ngokucacileyo.
25. Yintoni umsebenzi wekhadi eliwisiweyo elingasetwanga ngokutsha?
Impendulo: Ikhadi elilahlekileyo alizange lisetyenziselwe umqondiso wokukhanya, ukwenzela ukuba abasebenzi abasemsebenzini bangayi kuphosakela ukushiywa kwaye babangele ukugwetywa ngendlela yokurekhoda isenzo sokukhusela. Ingqalelo kufuneka ihlawulwe ekubuyiseleni umqondiso kwikhadi elilahlekileyo ngexesha lokuphepha izenzo eziphindaphindiweyo, ukwenzela ukuba ezimbini ngaphambi nangemva zingakwazi ukuhlukaniswa. .
26. Ngaba i-low-voltage ye-AC kunye neesekethe ze-DC zingabelana ngentambo enye, kwaye kutheni?
Impendulo: Hayi, kuba:
(1) Ukwabelana ngentambo enye kunokunciphisa umgangatho wokufakelwa kwenkqubo ye-DC.
(2) Ukuba i-DC insulation yonakalisiwe, umgca odibeneyo we-DC uya kubangela isiphaluka esifutshane okanye ukungasebenzi kakuhle kokhuseleko lwe-relay.
27. Bubuphi ubungakanani bemegger ekufuneka busetyenziswe ukulinganisa ukugquma kwesekethe yesibini? Zingaphi ii-megohm ezisemgangathweni wokugquma?
Impendulo: Kungcono ukusebenzisa i-megohmmeter ye-1000V ukulinganisa ixabiso lokumelana ne-insulation yesekethe yesibini. Ukuba akukho megohmmeter ye-1000V, i-500V megohmmeter ingasetyenziswa. Umgangatho wokugquma: akukho ngaphantsi kwe-1 megohm ekusebenzeni, akukho ngaphantsi kwe-20 megohm ngaphakathi, kwaye akukho ngaphantsi kwe-10 megohm ngaphandle.
28. Zeziphi izinto ezisetyenziswayo kunxibelelwano oluncedisayo lokutshintsha kweoyile?
Impendulo: Abafowunelwa abaqhelekileyo abavulekileyo kunye nesiqhelo abavaliweyo be-oyile ye-breaker circuit ngokwayo batshintsha indawo yokuvula kunye nokuvala ukudibanisa imijikelezo yokuvala kunye nokuhamba kwe-circuit breaker mechanism kunye nesekhethi yesandi sesandi, ukuze kufezekiswe injongo yokuvula okanye ukuvala I-circuit ye-circuit breaker, kwaye iyakwazi ngokuchanekileyo Thumela isignali evakalayo, qalisa isixhobo esizenzekelayo kwaye ukhusele isiphaluka sokuthintela, njl. Xa oonxibelelwano abancedisayo be-circuit breaker basetyenziswe kwiisekethe zokuvala kunye nokuhamba, kufuneka kubekho ukulibaziseka kwexesha.
29. Yintoni umsebenzi we-transformer yangoku?
Impendulo: I-transformer yangoku iguqula i-current enkulu ibe ngumbane omncinci kwinqanaba elithile, inikezela ngoku kwizixhobo ezahlukeneyo kunye nokukhuselwa kwe-relay, kwaye ihlukanise inkqubo yesibini kwi-voltage ephezulu. Ayiqinisekisi kuphela ukhuseleko lwabantu kunye nezixhobo, kodwa yenza lula kwaye ibeka umgangatho wokwenziwa kwezixhobo kunye nokuhanjiswa, kwaye iphucula inzuzo yezoqoqosho.
30. Uthini umgaqo wokusebenza wokukhuselwa ngokugqithisileyo?
Impendulo: Xa i-phase-to-phase ye-short-circuit ye-short-circuit iyenzeka kwigridi yamandla, i-current iya kwanda ngokukhawuleza kwaye i-voltage iya kuhla ngokukhawuleza. Ukukhuselwa ngokugqithisileyo kukuseta umbane osebenzayo we-relay yangoku ngokweemfuno zokukhethwa komgca. Xa impazamo yangoku kumgca ifikelela kwixabiso lesenzo se-relay yangoku, isenzo se-relay yangoku sikhetha ukusika umgca wephutha ngokweemfuno ezikhethiweyo zesixhobo sokukhusela.
31. Ziziphi iindlela ze-wiring ze-transformers zangoku?
Impendulo: Iindlela ze-wiring ze-transformers zangoku zibandakanya i-wiri ye-V-shaped-shaped wiring kunye nesigaba sesibini sangoku umahluko we-wiring usebenzisa ii-transformers ezimbini zangoku; izigaba ezintathu zocingo ezimile okwe-Y, izigaba ezithathu ze-delta-shaped wiring kunye ne-zero-sequence wiring usebenzisa i-wiring ye-transformer yangoku.
32. Loluphi uhlobo lwemithombo yamandla asebenzayo ekhoyo kwisixokelelwano samandla?
Impendulo: Imithombo yamandla esebenzayo kwisixokelelwano samandla zezi: ① ijenereyitha ehambelanayo; ② isilungisi senqanaba; ③ imbuyekezo yecapacitor ehambelanayo; ④ uthotho lwembuyekezo capacitor; ⑤ umbuyiseli omileyo.
33. Uthini umgaqo osebenzayo we-oyile yokucoca i-transformer?
Impendulo: I-transformer esebenzayo ibangela ukuba ioli ijikeleze kwi-oyile yokucoca ngenxa yokwahlukana kweqondo lokushisa phakathi kweqondo lokushisa kweoli yomgangatho ophezulu kunye nokushisa kweoli kwinqanaba eliphantsi. Izinto ezinobungozi kwioli, ezifana nokufuma, i-carbon yamahhala, i-oxides, njl., ifunnwe yi-silica gel kwi-oil purifier kunye nokujikeleza kweoli, ukuze ioli ihlanjululwe kwaye igcine iimpawu ezintle zombane kunye neekhemikhali. , kwaye udlale indima ekuhlaziyweni kweoli ye-transformer.
34. Sithini isiphumo sokupholisa sesixhobo sokupholisa somoya we-oyile esikhokelwayo nengakhokelwayo?
Impendulo: Uninzi lokuhamba kweoyile ye-transformer exhotyiswe ngesixhobo sokupholisa i-oyile eyomeleleyo engakhokelwayo ibuyela emva kwisithuba esiphakathi kodonga lwebhokisi kunye nokujika, kwaye inxalenye encinci ye-oyile ingena kwi-winding kunye ne-core, kwaye isiphumo sokupholisa asiphezulu. Ukuhamba kweoli epholileyo egeleza kwitanki yeoli ye-air-cooled transformer ekhokelwa yi-oyile eyomeleleyo ikhokelwa yi-oyile ehamba nge-baffle, kwaye ihamba ngokufanelekileyo kwi-core yentsimbi kunye nangaphakathi kwe-winding, ephucula umphumo wokupholisa. kwaye kunciphisa ukunyuka kwamaqondo obushushu bomoya.
35. Yintoni umsebenzi wethemometha? Zingaphi iindlela zokulinganisa ezikhoyo?
Impendulo: I-thermometer isetyenziselwa ukulinganisa ukushisa kweoli kwinqanaba eliphezulu le-oyile, kwaye idlala indima ekujongeni ukuba i-transformer yamandla isebenza ngokuqhelekileyo. Iithermometers zinokwahlulwa zibe ziindlela ezintathu zokulinganisa ubushushu: i-mercury thermometer, i-thermometer yesignali kunye nethemometha yokumelana ngokomthamo we-transformer.
36. Yintoni umsebenzi wokuvula kunye nokuvala i-buffer ye-high-voltage circuit breaker?
Impendulo: Umsebenzi we-buffer yokuvula kukuthintela iinxalenye ze-breaker circuit ukuba zonakaliswe yimpembelelo enkulu yempembelelo eyenziwa xa intwasahlobo ikhupha amandla. Umsebenzi wesithinteli sokuvala kukuthintela amandla empembelelo ngexesha lokuvala ekwenzeni ukuvala kube nzulu kakhulu kwaye konakalise isingxobo.
37. Kukuphi ukukhubeka kwamahhala kwe-breaker circuit?
Impendulo: Ngaliphi na ixesha ngexesha lenkqubo yokuvala i-breaker circuit, ukuba isenzo sokukhusela siphendulela kwisiphaluka sohambo, i-breaker circuit inokunqanyulwa ngokukhuselekileyo, okubizwa ngokuba yi-free tripping. Umqhubi wesiphaluka kunye nohambo lwamahhala unokuqinisekisa ukuba i-circuit breaker inokukhutshwa ngokukhawuleza xa i-circuit breaker ivaliwe kwi-short-circuit fault ukuphepha ukwandisa ububanzi bengozi.
38. Zeziphi iimpawu ezilungileyo zokucima i-arc zegesi ye-SF6?
Impendulo: Irhasi yeSF6 inezi propati zilandelayo:
(1) I-conductivity yekholomu ye-arc iphezulu, i-voltage ye-arc iphantsi kakhulu, kwaye amandla ekholomu ye-arc encinci.
(2) Xa i-AC yangoku iwela i-zero, amandla e-dielectric yegesi ye-SF6 ibuyisela ngokukhawuleza, malunga namaxesha angama-100 ngokukhawuleza kunomoya, oko kukuthi, amandla ayo okucima i-arc ngamaxesha angama-100 aphezulu kunomoya.
(3) Amandla e-dielectric yegesi ye-SF6 iphezulu.
39. Ziziphi iimpawu ze-vacuum circuit breakers?
Impendulo: I-vacuum circuit breaker ineempawu zomgama omncinci wokuvula umgama, ixesha elifutshane lokuqhawula, kunye nokutshisa okuncinci koqhagamshelwano xa uphula impazamo yangoku. Ngoko ke, amandla okusebenza afunwa yi-vacuum circuit breaker encinci kwaye isenzo sikhawuleza. Kananjalo ineenzuzo zobukhulu obuncinci, ubunzima obulula, umthwalo ophantsi wokugcinwa komsebenzi, ukuthintela umlilo, ukuqhuma-ubungqina kunye nengxolo ephantsi yokusebenza.
40. Kuthetha ukuthini ungqamaniso lwekhamera ehambelanayo?
Impendulo: Xa ikhamera isebenza, intsimi yamagnetic ejikelezayo ye-stator kunye ne-rotor ijikeleza kwicala elifanayo kunye nesantya esifanayo, esibizwa ngokuba yi-synchronization.
41. Emva kokuba i-fuse kwicala eliphambili le-voltage ye-voltage ivuthelwe, kutheni ingavumelekanga ukuyitshintsha nge-fuse eqhelekileyo?
Impendulo: Ukuthatha i-10kV i-voltage transformer njengomzekelo, i-current rated current ye-fuse kwicala eliphambili yi-0.5A. I-fuse egcwele isanti ye-quartz inomsebenzi ongcono wokucima i-arc kunye nomthamo omkhulu wokuphuka, kwaye inomsebenzi wokukhawulela i-short-circuit current. Nangona kunjalo, iifusi eziqhelekileyo azikwazi ukuhlangabezana neemfuno zokwaphulwa kwamandla.
42. Kutheni le nto icala lesibini le-voltage transformer kunye ne-transformer yangoku kufuneka isekelwe?
Impendulo: Isiseko secala lesibini le-voltage transformer kunye ne-transformer yangoku iyindawo yokukhusela. Ngenxa yokuba ukuba i-insulation yamacala aphambili kunye neyesibini yonakaliswe, i-voltage ephezulu yecala eliphambili iya kudibaniswa kwicala lesibini, eliya kusongela ukhuseleko lwabantu kunye nezixhobo, ngoko ke icala lesibini kufuneka libekwe phantsi.
43. Loluphi uhlobo lwesixhobo sombane se-nameplate yi-FKL-10-2 × 750-6?
Impendulo: I-FKL-10-2 × 750-6 yi-nameplate ye-aluminium cable splitting reactor kunye ne-reactance elinganisiweyo ye-6%, i-voltage elinganisiweyo ye-10kV, kunye nokulinganisa okwangoku kwamasebe amabini e-750A.
44. Yintoni umsebenzi we-shunt reactor kunye nothotho lwereactor?
Impendulo: I-line shunt reactor inokuhlawula i-capacitive charging current yomgca, ukunciphisa ukunyuka kwe-voltage yenkqubo kunye nokuveliswa kokusebenza ngokugqithisileyo, kwaye uqinisekise ukusebenza ngokukhuselekileyo komgca. I-reactor ye-busbar series inokunciphisa i-short-circuit current kwaye igcine i-busbar kunye ne-voltage ephezulu eseleyo. I-capacitor bank series reactor inokunciphisa i-harmonics ephezulu kwaye inciphise ukusabela.
45. Ziziphi iimpawu zendlela yocingo yecandelo lebhasi enye?
Impendulo: I-single busbar segmented wiring inokunciphisa uluhlu lwempembelelo yempazamo yebhasi. Xa icandelo lebhasi liphosakele, i-sectional circuit breaker ihamba ngokuzenzekelayo kunye nentsebenziswano yokukhusela i-relay ukususa icandelo eliphosakeleyo, ukwenzela ukuba ibhasi engafanelekanga ikwazi ukugcina umbane oqhelekileyo. Kubasebenzisi ababalulekileyo, amandla anokufumaneka kumacandelo ahlukeneyo ukuqinisekisa unikezelo lwamandla olungaphazanyiswa.
46. Zeziphi izinto ezingeloncedo kwiintambo ezimbini zebhasi?
Impendulo: I-wiring ye-busbar ineziphene zilandelayo:
(1) I-wiring kunye nokusebenza kunzima ngakumbi, kwaye ukungahambi kakuhle kuyenzeka ngexesha lomsebenzi wokutshintsha.
(2) Zininzi iiswitshi zokwahlula iibhasi, kwaye ubume besixhobo sokuhambisa amandla buye bantsonkothe ngakumbi, ngoko ke uqoqosho luluhle.
47. Yintoni umsebenzi wesishicileli seempazamo?
Impendulo: Irekhoda yempazamo isetyenziswa kwinkqubo yamandla. Xa inkqubo ingaphumeleli, inokurekhoda ngokuzenzekelayo kwaye ngokuchanekileyo utshintsho lwamanani ahlukeneyo ombane kwinkqubo ngaphambi nangemva kwesiphoso. Ngokuhlalutya kunye nokuthelekiswa kwezi zixhobo zombane, ingozi inokuhlalutywa kwaye ijongwe. Idlala indima ebalulekileyo ekugwebeni ukuba ukhuseleko lusebenza ngokuchanekileyo kunye nokuphucula umgangatho wokusebenza okhuselekileyo wenkqubo yamandla.
48. Kutheni kufuneka kufakwe amajoyinti okwandisa kwiibhasi zebhasi?
Impendulo: Izinto zineempawu zokwandiswa kwe-thermal kunye nokunciphisa, kwaye ubude bebhasi buya kutshintsha ngenxa yokushisa ngexesha lokusebenza. Ukuze ugweme uxinzelelo olugqithiseleyo kunye nomonakalo kwi-busbar kunye ne-insulator exhasayo ngenxa yeenguqu zokwandiswa kwe-thermal kunye nokunciphisa, amajoyina okwandisa kufuneka afakwe kwi-busbar enzima.49. Ithini iqondo lembuyekezo yekhoyili yokucinezela i-arc kwaye yintoni intsalela yangoku?Impendulo: Umlinganiselo wokwahlukana phakathi kwe-inductive current kunye ne-capacitive current ye-arc suppression coil kunye ne-capacitive current yegridi yamandla ibizwa ngokuba yi-degree yembuyekezo. Emva kokuba i-inductive current ye-arc suppression coil ihlawulela i-capacitive current, i-residual current ejikelezayo kwindawo yokumisa ibizwa ngokuba yi-residual current.50. Xa inkqubo enendawo engathathi hlangothi esekelwe kwikhoyili yokucinezela i-arc isebenza ngokuqhelekileyo, ngaba i-arc yokunciphisa i-coil ine-voltage?Impendulo: Xa inkqubo isebenza ngokuqhelekileyo, ngenxa yokungalinganiyo kwesigaba sesithathu ukuya kumhlaba we-capacitance yomgca, kukho umbane othile phakathi kwendawo engathathi hlangothi yenethiwekhi kunye nomhlaba, kwaye ixabiso lombane lihambelana ngqo ukungalingani kwesakhono. Kwiimeko eziqhelekileyo, i-voltage eveliswa ngendawo engathathi hlangothi ayinakudlula i-1.5% ye-voltage yesigaba esilinganisiweyo.
