Imibuzo engama-50 yeTransformers Classic

1. Ziziphi izinto eziphambili ze-transformers ezintywiliselwa kwi-oyile?

Impendulo: Izinto eziphambili zetransformer zezi: umbindi wentsimbi, ukujija, itanki yepetroli, umqamelo weoyile, umphefumli, umbhobho othintela ukuqhuma, irediyetha, isingxobo sokukhusela, itshintshi yetephu, i-gas relay, i-thermometer, ioyile ecocekileyo, njl.

2. Yintoni i-transformer egqunywe ngokupheleleyo? Yintoni i-transformer egqunywe kancinci?

Impendulo: I-semi-insulation yeyona nto iphambili ekugqumeni kufutshane nendawo engathathi cala ye-transformer, kwaye inqanaba layo lokugquma liphantsi kunelo lee-end windings. Ngokwahlukileyo koko, ngokubanzi inqanaba lokugquma le-head and tail windings ye-transformer libizwa ngokuba yi-full insulation.

3. Yintoni umsebenzi ophambili we-transformer kwinkqubo yamandla?

Impendulo: Indima yetransformer kwinkqubo yamandla kukuguqula i-voltage ukuze kube lula ukudluliselwa kwamandla. Emva kokuba i-voltage yonyuswe yitransformer enyukayo, ukulahleka komgca kungancitshiswa, uqoqosho lokudluliselwa kwamandla lunokuphuculwa, kwaye injongo yokudluliselwa kwamandla kumgama omde inokufezekiswa. Itransformer ehlayo ingatshintsha i-voltage ephezulu ibe yi-voltage efunekayo ngumsebenzisi kuwo onke amanqanaba ukuhlangabezana neemfuno zomsebenzisi.

4. Zithini iingozi zokuqhekeka kwekhava?

Impendulo: Ukuqhekeka kwikhabhathi kuya kunciphisa amandla okukhusela, nto leyo enokubangela umonakalo omkhulu kwikhabhathi de yonke into yonakale. Ikhabhathi ingaqhuma xa amanzi akwikhabhathi eqina. Kuyabonakala ukuba ikhabhathi isongela kakhulu ukusebenza ngokukhuselekileyo kwe-transformer.

5. Yintoni umahluko phakathi kwenqaku elingathathi cala kunye nenqaku elingu-zero kunye nomgca ongu-zero?

Impendulo: Indawo eqhelekileyo yokudibanisa apho iintloko (okanye imisila) zee-windings zezigaba ezintathu zidibene khona ibizwa ngokuba yindawo engathathi cala yombane. Xa indawo engathathi cala yombane inonxibelelwano oluhle nesixhobo sokumisa umhlaba, indawo engathathi cala ibizwa ngokuba yi-zero point; kwaye ucingo oluthathwe kwindawo engenanto lubizwa ngokuba ngumgca ongathathi cala.

6. Kutheni kulula ukufudumeza isixhumi sebhasi sangaphandle?

A: Iibhasi zangaphandle zihlala zitshatyalaliswa ngumoya, imvula, ikhephu, ukukhanya kwelanga, kunye nokubanda. Zonke ezi zinto zinokukhuthaza ukutsha ngokukhawuleza kunye nokubola kwamalungu ebhasi, ukuze ukumelana nokudibana kwamalungu kunyuke kwaye ubushushu bunyuke.

7. Zithini iimpawu zekhemikhali zegesi ye-SF6?

Impendulo: Igesi ye-SF6 ayinyibiliki emanzini nakwioyile ye-transformer, kwaye ayidibani neoksijini, i-argon, i-aluminium kunye nezinye izinto ezininzi kumaqondo obushushu ashushu. Nangona kunjalo, phantsi kwesenzo se-arc kunye ne-corona, igesi ye-SF6 iya kubola ukuze ivelise iikhompawundi ze-fluorine ephantsi, ezinokubangela umonakalo kwizinto zokukhusela, kwaye ezi khompawundi ze-fluorine ephantsi ziigesi ezinetyhefu kakhulu. Impendulo yokubola kwe-SF6 inento yokwenza kakhulu nokufuma, ngoko ke kufuneka kuthathwe amanyathelo okususa ubumanzi.

8. Yintoni umsebenzi womqamelo weoyile wetransformer?

Impendulo: Xa umthamo weoyile yetransformer usanda okanye uncipha ngokutshintsha kobushushu beoyile, umqamelo weoyile udlala indima yokugcina ioyile kunye nokugcwalisa ioyile, nto leyo enokuqinisekisa ukuba itanki yeoyile igcwele ioyile, nto leyo enokunciphisa isantya sokuwohloka kweoyile. Kukwakho negeyiji yenqanaba leoyile ecaleni komqamelo weoyile, enokujonga utshintsho kwinqanaba leoyile.

9. Kutheni kufuneka isiseko sesinyithi se-transformer sisekelwe?

Impendulo: Umbindi wentsimbi kunye nezinye izixhobo zetransformer zikwintsimi yombane ejikeleze ukujija ngexesha lokusebenza. Ukuba azigayiwa, umbindi wentsimbi kunye nezinye izixhobo ziya kubangela i-voltage ethile. Phantsi kwesenzo se-voltage esetyenzisiweyo, xa i-voltage ebangelwayo idlula umbindi wokukhupha umhlaba, kuya kwenzeka into yokukhupha. Ukuze kuthintelwe ukukhutshwa kwangaphakathi kwetransformer, umbindi wentsimbi kufuneka ugayiwe.

10. Kutheni kufuneka ufake iseti yee-arresters ze-ZnO phakathi kwe-power capacitor kunye ne-circuit breaker yayo?

Impendulo: Ukufakelwa kwe-ZnO arrester kunokuthintela i-overvoltage yokusebenza enokwenzeka xa i-power capacitor itsalwa kwaye ivalwa, kwaye kuqinisekiswe ukusebenza ngokukhuselekileyo kwezixhobo zombane.

11. Yintoni umahluko phakathi kwamaxabiso aboniswe yimitha yamandla ombane kunye nemitha yamandla?

Impendulo: Imitha yamandla ibonisa ubungakanani bamandla ombane akhutshiweyo, adluliswayo nasetyenziswayo yimveliso, unikezelo kunye nokusetyenziswa kwezixhobo ngoko nangoko; kwaye ixabiso lemitha yamandla ombane sisixa esiqokelelweyo samandla ombane akhutshiweyo, adluliswayo nasetyenziswayo kwixesha elithile.

12. Zithini iimfuno zeebhetri ezikwiipakethe zeebhetri ezihambelanayo?

Impendulo: Amandla e-electromotive ebhetri nganye kwibhetri ehambelanayo kufuneka alingane, kungenjalo ibhetri enegunya elikhulu le-electromotive iya kukhupha ibhetri ngamandla amancinci e-electromotive, yenze umsinga ojikelezayo ngaphakathi kwepakethi yebhetri. Ukongeza, ukumelana kwangaphakathi kwebhetri nganye kufanele kufane, kungenjalo umsinga wokukhupha ibhetri onokuthintelwa kwangaphakathi okuncinci uya kuba mkhulu kakhulu. Iibhetri ezinamaqondo ahlukeneyo amadala namatsha akufuneki zisetyenziswe ngaxeshanye.

13. Yintoni umsebenzi wesixhobo sesignali esiphakathi?

Impendulo: Isignali ephakathi sisixhobo sesignali esijonga ukusebenza kwezixhobo zombane kwisitishi esingaphantsi. Sithumela isandi kunye nemiqondiso yokukhanya ngokweempawu zempazamo yezixhobo zombane, sazisa abaqhubi ukuba bakhangele ngokukhawuleza, benze izigqibo ezichanekileyo baze bajongane nazo, kwaye baqinisekise ukusebenza ngokukhuselekileyo kwezixhobo.

14. Kutheni umbane usekhona kwixesha elifutshane xa ipeni yovavanyo yombane isetyenziselwa ukuhlolwa kombane emva kokuba umbane ucimile kwintambo yentambo?

Impendulo: Umgca wentambo ulingana ne-capacitor. Emva kokucima kombane, kusekho itshaja eseleyo kumgca, kwaye kusekho umahluko onokubakho emhlabeni. Ukuba umbane ucinyiwe ngoko nangoko, ipeni yokuvavanya iya kubonisa ukuba kukho umbane kumgca. Ke ngoko, kufuneka ikhutshwe ngokupheleleyo, kwaye ucingo olusezantsi lunokufakelwa kuphela emva kokuba umbane uvavanyiwe ngaphandle kombane.

15. Yintoni i-overvoltage yangaphakathi?

Impendulo: Ukugqithisa kwamandla angaphakathi yinkqubo yotshintsho apho imeko yenkqubo itshintsha ngequbuliso ngenxa yokusebenza, ingozi okanye ezinye izizathu, kwaye kuya kubakho inkqubo yokutshintsha ukusuka kwenye imeko ezinzileyo ukuya kwenye imeko ezinzileyo. Ngexesha lale nkqubo, kunokubakho ukugqithisa kwamandla ayingozi kwinkqubo. . Ezi voltage zibangelwa kukujikeleza kunye nokuqokelelwa kwamandla kagesi kwinkqubo, ngoko ke zibizwa ngokuba zii-overvoltage zangaphakathi.

16. Yintoni umsebenzi weringi ephezulu yokulinganisa ye-220kV valve arrester?

Impendulo: Emva kokufaka iringi yokulinganisa i-voltage, yenza usasazo lwe-voltage lwe-arrester lulingane.

17. Yintoni unxibelelwano olungenalo ukhuseleko? Zithini iingenelo zalo?

Impendulo: Uqhagamshelo lwe-protection zero yindlela yokudibanisa ngokuthe ngqo iindawo zesinyithi zezixhobo ezingatshajwa phantsi kweemeko eziqhelekileyo kwinkqubo ngeengcingo. Sebenzisa indlela ye-protection zero ukuqinisekisa ukhuseleko lomntu kunye nokuthintela iingozi zokutshayiswa kombane.

18. Yintoni umsebenzi we-high voltage circuit breaker?

Impendulo: I-high-voltage circuit breaker ayinakunqumla kwaye idibanise i-no-load current kunye ne-load current kwi-high-voltage circuit phantsi kweemeko eziqhelekileyo, kodwa ikwasebenzisana nesixhobo sokukhusela kunye nesixhobo esizenzekelayo xa inkqubo ingaphumeleli ukucima ngokukhawuleza i-fault current kwaye ithintele ingozi ukuba yande. Qinisekisa ukusebenza ngokukhuselekileyo kwenkqubo.

19. Idlala yiphi indima inkqubo yeDC kwisitishi esingaphantsi?

Impendulo: Inkqubo ye-DC inika amandla e-DC athembekileyo okulawula, isignali, ukhuseleko lokudlulisela, isixhobo esisebenzisa ngokuzenzekelayo kunye nokukhanyisa okungxamisekileyo kwisitishi esingaphantsi komhlaba. Ikwabonelela ngamandla okusebenza athembekileyo okusebenza. Nokuba inkqubo ye-DC ithembekile okanye ayithembekanga idlala indima ebalulekileyo ekusebenzeni ngokukhuselekileyo kwesitishi esingaphantsi komhlaba kwaye sisiqinisekiso sokusebenza ngokukhuselekileyo kwesitishi esingaphantsi komhlaba.

20. Ukuze ibhetri ihlale itshajiwe ngokupheleleyo ngexesha lokutshaja okuqhelekileyo, kufuneka ibe yintoni i-terminal voltage yebhetri nganye?

Impendulo: Ukuze ibhetri ihlale itshajiwe ngokupheleleyo, ibhetri nganye eqhagamshelwe kwibhasi yeDC kufuneka igcine i-voltage ye-2.15V ngexesha lokutshaja kweflothi.

21. Kutheni kufuneka ufake isixhobo sokujonga ubushushu be-DC?

Impendulo: Ukusebenza ixesha elide kwepali enye esekwe kwinkqubo ye-DC yesitishi esingaphantsi akuvumelekanga, kuba ukuba ukusetwa kwakhona kwenzeka kwenye indawo yepali efanayo, kunokubangela ukungasebenzi kakuhle kwesixhobo sesignali, ukhuselo lokudluliselwa kunye nesekethe yokulawula. Ukongeza, xa enye ipali isekwe, ukuba enye ipali isekwe kwakhona, kuya kubangela isekethe emfutshane ye-DC.

22. Cacisa ukuba yintoni i-floating charge?

Impendulo: Ukutshaja okudadayo kufakwa kwiiyunithi ezimbini zokutshaja, enye yeyona yunithi iphambili yokutshaja kwaye enye yiyunithi yokutshaja edadayo. Ukutshaja okudadayo kukubuyisela ilahleko yebhetri yokuzikhupha ngokwayo, ukuze ipakethi yebhetri ihlale ikwimeko yokutshaja ngokupheleleyo.

23. Yintoni umsebenzi we-wave trap?

Impendulo: I-wave choke yinxalenye yonxibelelwano olusebenzisa amaza aphezulu efunekayo kunxibelelwano lomthwali kunye nokhuseleko olusebenzisa amaza aphezulu. Ithintela ukuvuza kombane osebenzisa amaza aphezulu kwamanye amasebe kwaye inciphisa ukulahleka kwamandla asebenzisa amaza aphezulu.

24. Zithini izinto ezenzekayo xa inkqubo itshintshatshintsha?

Impendulo: Iziganeko xa inkqubo itshintshatshintsha zezi:

(1) Izikhombisi zemitha yamandla, i-voltmeter kunye nemitha yamandla kwisitishi esingaphantsi zijika rhoqo. Ukuba kukho umgca wokubopha, ukujika kwemitha yeyona nto icacileyo.

(2) Okukhona ikufutshane neziko lenkqubo lokujika kombane, kokukhona i-voltage itshintsha kakhulu, kwaye ukukhanya kwesibane se-incandescent kuyabonakala kakhulu.

25. Yintoni umsebenzi wesignali yekhadi elahliweyo ethi ayiphinde isetyenziswe?

Impendulo: Ikhadi elilahlekileyo alikabuyiselwa kwisignali yokukhanya, ukuze abasebenzi abasemsebenzini bangaphoswa zizinto ezishiyiweyo baze babangele ukungaqondi kakuhle kwinkqubo yokurekhoda isenzo sokukhusela. Kufuneka kuqwalaselwe ukubuyisela isignali kwikhadi elilahlekileyo ngexesha ukuze kuthintelwe izenzo eziphindaphindwayo, ukuze ezimbini ngaphambi nasemva koko zingahlukaniswa.

26. Ngaba iisekethe ze-AC kunye ne-DC ezine-voltage ephantsi zingabelana ngentambo enye, kwaye ngoba?

Impendulo: Hayi, kuba:

(1) Ukwabelana ngentambo enye kunokunciphisa inqanaba lobushushu kwinkqubo yeDC.

(2) Ukuba i-insulation ye-DC yonakele, umgca oxutyiweyo we-DC uya kubangela i-short circuit okanye ukungasebenzi kakuhle kokhuseleko lwe-relay.

27. Lungakanani ubungakanani be-megger ekufuneka busetyenziswe ukulinganisa ubushushu besekethe yesibini? Zingaphi ii-megohms ezisemgangathweni wobushushu?

Impendulo: Kungcono ukusebenzisa i-megohmmeter ye-1000V ukulinganisa ixabiso lokumelana nokufakwa kwe-insulation kwisekethe yesibini. Ukuba akukho megohmmeter ye-1000V, i-megohmmeter ye-500V nayo ingasetyenziswa. Umgangatho wayo wokufakwa kwe-insulation: kungabi ngaphantsi kwe-megohm enye esebenzayo, kungabi ngaphantsi kwe-20 megohm ngaphakathi, kwaye kungabi ngaphantsi kwe-10 megohm ngaphandle.

28. Ziziphi iindlela zokusebenzisa izixhobo zokuncedisa zeswitshi yeoyile?

Impendulo: Ii-contacts ezihlala zivuliwe nezivalekileyo ze-oil circuit breaker ngokwazo zitshintsha iindawo zokuvula nezokuvala ukuze zidibanise ii-closing and tripping circuits ze-circuit breaker mechanism kunye ne-sound signal circuit, ukuze kufezekiswe injongo yokuvula okanye yokuvala i-circuit ye-circuit breaker, kwaye zinokuthumela ngokuchanekileyo isignali evakalayo, ziqalise isixhobo esisebenzisa ngokuzenzekelayo kwaye zikhusele i-blocking circuit, njl. Xa ii-contacts ezincedisayo ze-circuit breaker zisetyenziswa kwii-closing and tripping circuits, kufuneka kubekho ukulibaziseka kwexesha.

29. Yintoni umsebenzi we-current transformer?

Impendulo: I-current transformer iguqula i-large current ibe yi-large current ngomlinganiselo othile, ibonelela nge-large current yezixhobo ezahlukeneyo kunye nokukhuselwa kwe-relay, kwaye yahlula inkqubo yesibini kwi-voltage ephezulu. Ayiqinisekisi nje kuphela ukhuseleko lwabantu kunye nezixhobo, kodwa ikwalula kwaye imisela ukwenziwa kwezixhobo kunye ne-relay, kwaye iphucula iingenelo zoqoqosho.

30. Yintoni umgaqo osebenzayo wokukhusela umbane ogqithisileyo?

Impendulo: Xa kuvela impazamo yesekethe emfutshane ukusuka kwisigaba ukuya kwisigaba kwigridi yamandla, umbane uya kwanda ngequbuliso kwaye i-voltage iya kwehla ngequbuliso. Ukhuseleko olugqithisileyo kukuseta umbane osebenzayo we-current relay ngokweemfuno zokukhetha umgca. Xa umbane we-fault kumgca ufikelela kwixabiso lesenzo se-current relay, isenzo se-current relay sinqumla ngokukhetha umgca we-fault ngokweemfuno zokukhetha zesixhobo sokukhusela.

31. Ziziphi iindlela zokufakelwa kweentambo ze-current transformers?

Impendulo: Iindlela zokudibanisa iintambo zeetransformer zangoku ziquka ukuxhuma iintambo ezimile okwe-V kunye nokudibanisa umahluko wamandla ombane wesigaba sesibini kusetyenziswa iitransformer ezimbini zangoku; ukuxhuma iintambo ezimile okwe-Y kwesigaba sesithathu, ukuxhuma iintambo ezimile okwe-delta kwesigaba sesithathu kunye nokuxhuma iintambo ezilandelelanayo ze-zero kusetyenziswa ukuxhuma iitransformer ezintathu zangoku.

32. Ziziphi iintlobo zamandla asebenzayo akhoyo kwinkqubo yamandla?

Impendulo: Imithombo yamandla esebenzayo kwinkqubo yamandla yile: ① ijenereyitha ehambelanayo; ② i-stage conditioner; ③ i-capacitor yembuyekezo ehambelanayo; ④ i-capacitor yembuyekezo yochungechunge; ⑤ i-static compensator.

33. Yintoni umgaqo osebenzayo wesicoci seoyile setransformer?

Impendulo: I-transformer esebenzayo ibangela ukuba ioyile ijikeleze kwi-oyile purifier ngenxa yomahluko wobushushu phakathi kobushushu beoyile yomaleko ophezulu kunye nobushushu beoyile yomaleko osezantsi. Izinto ezinobungozi kwioyile, ezinje ngomswakama, ikhabhoni ekhululekileyo, ii-oxides, njl.njl., zifunxwa yi-silica gel kwi-oyile purifier xa ijikeleza ioyile, ukuze ioyile ihlanjululwe kwaye igcine iipropati ezilungileyo zombane nezekhemikhali, kwaye idlale indima ekuvuseleleni ioyile ye-transformer.

34. Iyintoni impembelelo yokupholisa yesixhobo sokupholisa umoya weoyile esinamandla esikhokelwayo nesingenasikhokelo se-transformer?

Impendulo: Uninzi lokuhamba kweoyile yetransformer exhotyiswe ngesixhobo sokupholisa umoya weoyile esinamandla esingakhokelwayo sibuyela umva ngesithuba esiphakathi kodonga lwebhokisi kunye nokujika, kwaye inxalenye encinci yokuhamba kweoyile ingena ekujikeni nasembindini, kwaye isiphumo sayo sokupholisa asiphezulu. Ukuhamba kweoyile yokupholisa okugeleza kwitanki yeoyile yetransformer epholileyo emoyeni ekhokelwa yioyile enamandla kukhokelwa kukuhamba kweoyile nge-baffle, kwaye kugeleza ngempumelelo kwi-iron core nangaphakathi kokujika, okuphucula isiphumo sokupholisa kwaye kunciphise ukunyuka kobushushu bokujikeleza.

35. Yintoni umsebenzi we-thermometer? Zingaphi iindlela zokulinganisa ezikhoyo?

Impendulo: I-thermometer isetyenziselwa ukulinganisa ubushushu beoyile kumaleko ongaphezulu kwitanki yeoyile, kwaye idlala indima ekujongeni ukuba i-transformer yamandla isebenza ngokwesiqhelo na. Ii-Thermometers zinokwahlulwa zibe ziindlela ezintathu zokulinganisa ubushushu: i-mercury thermometer, i-signal thermometer kunye ne-resistance thermometer ngokwe-transformer capacity.

36. Yintoni umsebenzi we-buffer yokuvula nokuvala ye-high-voltage circuit breaker?

Impendulo: Umsebenzi we-opening buffer kukuthintela iindawo ze-circuit breaker ukuba zonakaliswe ngamandla amakhulu e-impact abangelwa yi-impact force xa i-spring ikhupha amandla. Umsebenzi we-closing buffer kukuthintela amandla e-impact ngexesha lokuvala ekwenzeni i-closure ibe nzulu kakhulu kwaye yonakalise i-casing.

37. Yintoni ukukhubeka ngokukhululekileyo kwe-circuit breaker?

Impendulo: Nangaliphi na ixesha ngexesha lenkqubo yokuvala i-circuit breaker, ukuba isenzo sokukhusela sivula i-trip circuit, i-circuit breaker inokuqhawulwa ngokukhuselekileyo, okubizwa ngokuba yi-free tripping. I-circuit breaker ene-free trip inokuqinisekisa ukuba i-circuit breaker inokuqhawulwa ngokukhawuleza xa i-circuit breaker ivaliwe kwi-short-circuit fault ukuze kuthintelwe ukwandisa ububanzi bengozi.

38. Ziziphi iimpawu ezilungileyo zokucima i-arc zegesi ye-SF6?

Impendulo: Igesi ye-SF6 ineempawu ezilungileyo ezilandelayo:

(1) Ukuqhuba kombane kwikholamu ye-arc kuphezulu, i-voltage ye-arc iphantsi kakhulu, kwaye amandla ekholamu ye-arc mancinci.

(2) Xa umsinga we-AC unqumla i-zero, amandla e-dielectric egesi ye-SF6 abuyela kwimeko yesiqhelo ngokukhawuleza, malunga ne-100 ngokukhawuleza kunomoya, oko kukuthi, amandla ayo okucima i-arc aphezulu ngokuphindwe ka-100 kunomoya.

(3) Amandla e-dielectric egesi ye-SF6 aphezulu.

39. Zithini iimpawu zee-vacuum circuit breakers?

Impendulo: I-vacuum circuit breaker ineempawu zomgama omncinci wokuvula uqhagamshelwano, ixesha elifutshane lokujika, kunye nokutsha kancinci koqhagamshelwano xa kuphulwa umbane wempazamo. Ke ngoko, amandla okusebenza afunekayo kwi-vacuum circuit breaker mancinci kwaye isenzo siyakhawuleza. Ikwanazo neenzuzo zobukhulu obuncinci, ubunzima obulula, umthwalo womsebenzi omncinci wokulungisa, ukumelana nomlilo, ukumelana nokuqhuma kunye nengxolo ephantsi yokusebenza.

40. Kuthetha ukuthini ukuvumelanisa ikhamera ehambelanayo?

Impendulo: Xa ikhamera isebenza, intsimi yemagnethi ejikelezayo ye-stator kunye ne-rotor zijikeleza kwicala elifanayo nangesantya esifanayo, okubizwa ngokuba yi-synchronization.

41. Emva kokuba ifusi kwicala eliphambili le-voltage transformer ivuthelwe, kutheni ingavumelekanga ukuyitshintsha ngefusi eqhelekileyo?

Impendulo: Xa sithatha i-10kV voltage transformer njengomzekelo, umbane olinganisiweyo wefuse kwicala eliphambili yi-0.5A. Ifuse ezaliswe yisanti ye-quartz inamandla okucima arc ngcono kwaye inomthamo omkhulu wokuqhekeza, kwaye ikwanomsebenzi wokunciphisa umbane we-short-circuit. Nangona kunjalo, iifuse eziqhelekileyo azinakufikelela kwiimfuno zomthamo wokuqhekeza.

42. Kutheni kufuneka icala lesibini le-voltage transformer kunye ne-current transformer libekwe phantsi komhlaba?

Impendulo: Ukufakwa komhlaba kwicala lesibini le-voltage transformer kunye ne-current transformer zezokukhusela umhlaba. Kuba ukuba ukufakelwa komhlaba kwamacala okuqala nawesibini kuyonakalisiwe, i-voltage ephezulu yecala eliphambili iya kuqhagamshelwa kwicala lesibini, nto leyo eya kusongela ukhuseleko lwabantu kunye nezixhobo, ngoko ke icala lesibini kufuneka lifakwe umhlaba.

43. Luhlobo luni lwegama lesixhobo sombane i-FKL-10-2×750-6?

Impendulo: I-FKL-10-2×750-6 ligama lesixhobo sokuqhekeza intambo ye-aluminiyam esine-reactance elinganisiweyo ye-6%, i-voltage elinganisiweyo ye-10kV, kunye ne-current elinganisiweyo yamasebe amabini e-750A.

44. Yintoni umsebenzi we-shunt reactor kunye ne-series reactor?

Impendulo: I-line shunt reactor inokubuyisela umbane wokutshaja we-capacitive yomgca, inciphise ukunyuka kwe-voltage yenkqubo kunye nokuveliswa kwe-overvoltage yokusebenza, kwaye iqinisekise ukusebenza ngokukhuselekileyo komgca. I-busbar series reactor inokunciphisa umbane we-short-circuit kwaye igcine i-busbar nge-voltage ephezulu eseleyo. I-capacitor bank series reactor inokunciphisa ii-harmonics eziphezulu kwaye inciphise i-reactance.

45. Zithini iimpawu zendlela yokuxhuma intambo yecandelo le-busbar enye?

Impendulo: Intambo enye ehlukaniswe ngebha yebhasi inokunciphisa uluhlu lwempembelelo yempazamo yebha yebhasi. Xa icandelo lebhasi linengxaki, i-sectional circuit breaker iyakhubeka ngokuzenzekelayo ngentsebenziswano yokhuselo lwe-relay ukususa icandelo elinengxaki, ukuze ibhasi engenangxaki ikwazi ukugcina umbane oqhelekileyo. Kubasebenzisi ababalulekileyo, umbane unokufumaneka kwiicandelo ezahlukeneyo ukuqinisekisa umbane ongenakuphazamiseka.

46. ​​Zithini iingxaki zokufakelwa kweentambo ezimbini zebhasi?

Impendulo: Ukufakelwa kweentambo zebhasi ezimbini kuneengxaki ezilandelayo:

(1) Ucingo kunye nokusebenza kuyinkimbinkimbi ngakumbi, kwaye ukungasebenzi kakuhle kunokwenzeka ngexesha lokusebenza kokutshintsha.

(2) Kukho iiswitshi ezininzi zokwahlukanisa iibhasi, kwaye ulwakhiwo lwesixhobo sokuhambisa umbane nalo luyinkimbinkimbi ngakumbi, ngoko ke uqoqosho luhlwempuzekile.

47. Yintoni umsebenzi werekhodi yeempazamo?

Impendulo: Irekhoda yempazamo isetyenziswa kwinkqubo yamandla. Xa inkqubo ingaphumeleli, inokurekhoda ngokuzenzekelayo nangokuchanekileyo utshintsho lwemilinganiselo eyahlukeneyo yombane kwinkqubo ngaphambi nasemva kwempazamo. Ngokuhlalutya nokuthelekisa la manani ombane, ingozi ingahlalutywa kwaye ijongwane nayo. Idlala indima ebalulekileyo ekugwebeni ukuba ukhuseleko lusebenza ngokuchanekileyo na kwaye luphucule inqanaba lokusebenza okukhuselekileyo kwenkqubo yamandla.

48. Kutheni kufuneka kufakwe ii-expansion joints kwii-hard busbars?

Impendulo: Izinto zineempawu zokwanda nokuncipha kobushushu, kwaye ubude bebha yebhasi buya kutshintsha ngenxa yobushushu ngexesha lokusebenza. Ukuze kuthintelwe uxinzelelo olugqithisileyo kunye nomonakalo kwibha yebhasi kunye ne-insulator exhasayo ngenxa yotshintsho ekukhuleni nasekuncipheni kobushushu, kufuneka kufakwe amajoyinti okwandisa kwibha yebhasi eqinileyo.

49. Ingakanani inqanaba lembuyekezo ye-arc suppression coil kwaye ingakanani i-residual current?

Impendulo: Umlinganiselo womahluko phakathi komsinga we-inductive kunye nomsinga we-capacitive we-arc suppression coil kunye nomsinga we-capacitive wegridi yamandla ubizwa ngokuba yi-compensation degree. Emva kokuba umsinga we-inductive we-arc suppression coil uhlawule umsinga we-capacitive, umsinga oseleyo ohamba kwindawo yokumisa umhlaba ubizwa ngokuba ngumsinga oshiyekileyo.

50. Xa inkqubo ene-neutral point esekwe kwi-arc compression coil isebenza ngokuqhelekileyo, ngaba i-arc compression coil ine-voltage?

Impendulo: Xa inkqubo isebenza ngendlela eqhelekileyo, ngenxa yomthamo ongalinganiyo wesigaba sesithathu ukuya emhlabeni womgca, kukho i-voltage ethile phakathi kwe-neutral point yenethiwekhi nomhlaba, kwaye ixabiso le-voltage linxulumene ngokuthe ngqo nokungalingani kwe-capacitance. Kwiimeko eziqhelekileyo, i-voltage eveliswa yi-neutral point ayinakudlula i-1.5% ye-voltage yesigaba esilinganisiweyo.