Idivayisi yokuqapha ekulayini yokutshekisa kombhoshongo wokudlulisa, okubonisa ukutsheka nokuguquguquka kombhoshongo wokudlulisela osebenzayo

Ikhebula lamandla kakhondatha weshubhu

Intambo yamandla ka-Tubular conductor iwuhlobo lwemishini yamanje ephethe umqhubi wayo iyithubhu eyithusi noma i-aluminium eyinsimbi eyindilinga futhi esongwe.

nge-insulation, futhi i-insulation isongwe nge-grounding metal shielding layer.Njengamanje, izinga lamandla kagesi elijwayelekile lingu-6-35kV.

Uma iqhathaniswa nezintambo zamandla endabuko, ngenxa yezimpawu zayo zesakhiwo, inezinzuzo ezilandelayo zobuchwepheshe:

1) I-conductor ine-tubular, enendawo enkulu yesigaba, ukuchithwa kahle kokushisa, umthamo omkhulu wamanje wokuthwala (umthamo wamanje wokuthwala owodwa

imishini evamile ingafinyelela ku-7000A), nokusebenza okuhle kwemishini.

2) Imbozwe nge-insulation eqinile, enezivikelo nephansi, ephephile, yokonga isikhala kanye nokugcinwa okuncane;

I-3) Isendlalelo sangaphandle singafakwa ngezikhali kanye ne-sheath, enokumelana nesimo sezulu esihle.

Izintambo ze-Tubular conductor zifanele imigqa yokufaka engaguquki enomthamo omkhulu, ukubumbana kanye nebanga elifushane ekuthuthukisweni kwamandla esimanje.

Ikhebula le-Tubular conductor, nezinzuzo zalo zobuchwepheshe ezivelele njengomthamo omkhulu wokuthwala, ukonga isikhala, ukumelana nesimo sezulu esiqinile, ukuphepha, kulula

ukufakwa nokugcinwa, kungashintsha izintambo zamandla ezivamile, i-GIL, njll. ezimweni ezithile zohlelo lokusebenza futhi kube ukukhetha komthwalo osindayo.

umklamo wokuxhumana.

Eminyakeni yamuva nje, izintambo zamandla e-tubular conductor ziye zasetshenziswa kabanzi eziteshini ezintsha zasekhaya ezihlakaniphile, i-photovoltaic enkulu, amandla omoya, i-nuclear.

ubunjiniyela bamandla, uphethiloli, insimbi, amakhemikhali, ujantshi ofakwe ugesi, umzila wezitimela zasemadolobheni kanye neminye imikhakha, kanye nezinga likagesi nalo lingene ku-high-voltage.

inkambu kusukela ku-voltage ephansi yokuqala.Inani labakhiqizi linyukile lisuka kubakhiqizi abambalwa baseYurophu nabaseMelika laya kwabangamashumi, ikakhulukazi eChina.

Ukufakwa kwezintambo zamandla kagesi we-tubular yasekhaya kuhlukaniswe nge-epoxy impregnated paper casting, i-silicone extrusion yerabha, i-EPDM extrusion,

i-polyester film winding nezinye izinhlobo.Kusukela ekuhlangenwe nakho kwamanje kokukhiqiza nokusebenza, izinkinga ezinkulu okuhlangatshezwane nazo yizinkinga zokufakwa kwe-insulation,

njengokusebenza kwesikhathi eside kwezinto eziqinile kanye nokukhethwa kokuqina kokufakwa kwe-insulation, indlela yokuthuthukisa kanye nokutholwa kokufakwa okuqinile

amaphutha, kanye nocwaningo lokuxhumana okumaphakathi kanye nokulawula amandla enkundla yetheminali.Lezi zinkinga ziyefana nalezo ezijwayelekile ezikhishwayo

izintambo zikagesi ezivalekile.

Ikhebuli evalwe ngegesi (GIL)

IGas Insulated Transmission Lines (GIL) ingugesi ophezulu kanye nemishini emikhulu yamanje yokudlulisa amandla esebenzisa igesi i-SF6 noma i-SF6 kanye ne-N2 exutshwe igesi.

i-insulation, futhi i-enclosure kanye ne-conductor zihlelwe ku-eksisi efanayo.I-conductor yenziwe ngepayipi ye-aluminium alloy, futhi igobolondo livaliwe

ikhoyili ye-aluminium alloy.I-GIL ifana nebhasi lephayiphi eliyi-coaxial kugesi efakwe insimbi evalekile (GIS).Uma kuqhathaniswa ne-GIS, i-GIL ayinayo

ukuphulwa kanye nezidingo zokucisha i-arc, futhi ukukhiqizwa kwayo kulula.Ingakhetha ukushuba okuhlukile kodonga, ububanzi kanye nokwahlukanisa

igesi, engahlangabezana nezidingo ezahlukene ngokwezomnotho.Ngenxa yokuthi i-SF6 iyigesi ebamba ukushisa enamandla kakhulu, i-SF6-N2 namanye amagesi axutshwe kancane kancane

esetshenziswa njengama-substitutes emhlabeni jikelele.

I-GIL inezinzuzo zokufaka okulula, ukusebenza nokugcinwa, izinga lokuhluleka eliphansi, umsebenzi omncane wokulungisa, njll. Ingenza lula izintambo ze

iziteshi zikagesi neziteshi ezincane, ezinempilo yesevisi yokuklama engaphezu kweminyaka engama-50.Ineminyaka ecishe ibe ngu-40 yokusebenza phesheya, kanye nomhlaba wonke jikelele

ubude bokufaka budlule ku-300 km.I-GIL inezici zobuchwepheshe ezilandelayo:

1) Ukudluliswa komthamo omkhulu kwenziwa ngomthamo omkhulu wamanje wokuthwala ofinyelela ku-8000A.Amandla mancane kakhulu kunalawo ajwayelekile

izintambo zikagesi, kanye nesinxephezelo samandla asebenzayo akudingekile ngisho nasekudluliseleni ibanga elide.Ukulahlekelwa kolayini kungaphansi kwalokho kokujwayelekile okuphezulu-

izintambo ze-voltage nemigqa engaphezulu.

2) Ukuthembeka okuphezulu kokusebenza okuphephile, isakhiwo esiqinile sensimbi esiboshwe kanye nokufakwa uphawu kwamapayipi kwamukelwa, okuvamise ukungathinteki esimweni sezulu esibi.

kanye nezinye izici zemvelo uma kuqhathaniswa nemigqa ephezulu.

3) Hlangana nendawo ezungezile ngendlela enobungane, enomthelela ophansi kakhulu we-electromagnetic endaweni.

I-GIL ibiza ngaphezu kolayini abaphezulu kanye nezintambo ezivamile ezinamandla kagesi.Izimo zesevisi ezijwayelekile: isekethe kagesi enamandla kagesi angu-72.5kV nangaphezulu;

Kumasekhethi anamandla amakhulu okudlulisa, izintambo ezivamile zamandla kagesi aphezulu kanye nemigqa ephezulu ayikwazi ukuhlangabezana nezidingo zokudlulisela;Izindawo nge

izidingo eziphakeme zemvelo, njengama-shafts aphansi aqondile noma ama-inclined shafts.

Kusukela ngeminyaka yawo-1970, amazwe aseYurophu nawaseMelika asebenzise i-GIL.Ngo-1972, uhlelo lokuqala lokudlulisa i-AC GIL emhlabeni lwakhiwa e-Hudson

Isikhungo Samandla eNew Jersey (242kV, 1600A).Ngo-1975, i-Wehr Pumped Storage Power Station eJalimane yaqeda iphrojekthi yokuqala yokudlulisa i-GIL eYurophu.

(420kV, 2500A).Kuleli khulu leminyaka, i-China yethule inqwaba yamaphrojekthi amakhulu okuphehla ugesi ngamanzi, njenge-Xiaowan Hydropower Station, i-Xiluodu.

Isiteshi samandla kagesi i-Hydropower, i-Xiangjiaba Hydropower Station, i-Laxiwa Hydropower Station, njll. Umthamo wamayunithi ala maphrojekthi kagesi makhulu, futhi iningi

bamukela isakhiwo sendlu yamandla engaphansi komhlaba.I-GIL isiphenduke enye yezindlela eziyinhloko zolayini abangenayo nabaphumayo, futhi izinga likagesi likalayini lingu-500kV.

noma ngisho 800kV.

NgoSepthemba 2019, iphrojekthi yegalari yamapayipi ephelele ye-Sutong GIL yaqala ukusebenza ngokusemthethweni, okuphawula ukwakheka okusemthethweni kwe-East China ephezulu kakhulu.

I-voltage AC inethiwekhi ye-loop ephindwe kabili.Ubude besigaba esisodwa sepayipi lephayiphi eliyisekethe eliphindwe kabili elingu-1000kV GIL emhubheni licishe libe ngu-5.8km, kanti ubude bayo buphelele.

Iphayiphi lesigaba sesithupha sesifunda esiphindwe kabili lilinganiselwa ku-35km.Izinga le-voltage nobude obuphelele buphezulu kakhulu emhlabeni.

Ikhebula le-Thermoplastic polypropylene insulated (PP)

Namuhla, izintambo zamandla kagesi we-AC aphakathi nendawo naphezulu zifakwe i-polyethylene (XLPE), esebenza isikhathi eside.

izinga lokushisa ngenxa yezakhiwo zayo ezinhle kakhulu ze-thermodynamic.Kodwa-ke, impahla ye-XLPE nayo iletha imiphumela engemihle.Ngaphezu kokuba nzima ukuyigaya kabusha,

inqubo yokuxhumanisa kanye nenqubo yokususa umoya iphinde ibangele isikhathi eside sokukhiqiza ikhebula kanye nezindleko eziphakeme, kanye nemikhiqizo ehlobene ne-polar efana

i-cumyl alcohol ne-acetophenone izokwandisa i-dielectric constant, okuzokwandisa amandla ezintambo ze-AC, ngaleyo ndlela kwandise ukudluliswa.

ukulahlekelwa.Uma isetshenziswa kumakhebula e-DC, imikhiqizo exhumanisa i-cross-link izoba umthombo obalulekile wokukhiqiza ukushaja kwesikhala kanye nokunqwabelana ngaphansi kwe-DC voltage,

ezithinta kakhulu impilo yezintambo ze-DC.

I-Thermoplastic polypropylene (PP) inezici zokwahlukanisa okuhle kakhulu, ukumelana nokushisa okuphezulu, ukwenza ipulasitiki nokugaywa kabusha.Okushintshiwe

I-thermoplastic polypropylene inqoba iziphambeko zecrystallinity ephezulu, ukumelana nezinga lokushisa eliphansi kanye nokuguquguquka okungekuhle, futhi inezinzuzo ekwenzeni kahle.

ubuchwepheshe bokucutshungulwa kwekhebula, ukunciphisa izindleko, ukwanda kwezinga lokukhiqiza, nokwandisa ubude bokukhipha ikhebula.Izixhumanisi zokuxhumanisa nokususa umoya ziyi

ikhishiwe, futhi isikhathi sokukhiqiza sicishe sibe ngama-20% kuphela aleso lamakhebula agqunyiwe e-XLPE.Njengoba okuqukethwe kwezingxenye ze-polar kuncipha, kuzoba a

ukukhetha okungaba khona kokufakwa kwamandla kagesi aphezulu we-DC.

Kuleli khulu leminyaka, abakhiqizi bamakhebula baseYurophu nabakhiqizi bezinto ezibonakalayo baqala ukuthuthukisa nokuthengisa izinto ze-thermoplastic PP futhi kancane kancane.

bawasebenzise emigqeni yamakhebula kagesi kagesi aphakathi nendawo naphezulu.Njengamanje, ikhebula le-PP le-voltage emaphakathi seliqaliswe ukusebenza amashumi ezinkulungwane

amakhilomitha eYurophu.Eminyakeni yamuva nje, inqubo yokusebenzisa i-PP eguquliwe njengezintambo ze-DC ezinamandla kakhulu eYurophu iye yashesha kakhulu, futhi i-320kV,

Izintambo ze-DC ezingama-525kV kanye ne-600kV ze-polypropylene ezifakwe ngaphakathi ziphumelele ukuhlolwa kohlobo.I-China iphinde yasungula i-PP eguquliwe yamandla kagesi aphakathi nendawo

Ikhebula le-AC bese ulufaka kuhlelo lokusebenza lokubonisa iphrojekthi ngokusebenzisa ukuhlolwa kohlobo ukuze uhlole imikhiqizo enamazinga aphezulu kagesi.Ukumisa kanye nobunjiniyela

ukuzijwayeza nakho kuyaqhubeka.

Ikhebula eliphezulu lokushisa eliphezulu

Ezindaweni ezinkulu zamadolobha amakhulu noma izikhathi ezinkulu zokuxhumeka kwamanje, ukuminyana kokudlulisela kanye nezidingo zokuphepha ziphezulu kakhulu.Ngesikhathi esifanayo,

umhubhe kanye nesikhala kunqunyelwe.Inqubekelaphambili yezobuchwepheshe yezinto ezisetshenziswayo ze-superconducting yenza ubuchwepheshe bokudlulisa i-superconducting a

inketho engenzeka yamaphrojekthi.Ngokusebenzisa ishaneli yekhebula ekhona futhi esikhundleni sekhebula lamandla elikhona ngekhebula le-high-temperature superconducting, i

umthamo wokudlulisela ungaphinda kabili, futhi ukungqubuzana phakathi kokukhula komthwalo kanye nesikhala esilinganiselwe sokudlulisela kungaxazululwa kahle.

I-transmission conductor yekhebula le-superconducting liyi-superconducting material, futhi ukuminyana kokudlulisela kwekhebula le-superconducting kukhulu.

futhi i-impedance iphansi kakhulu ngaphansi kwezimo ezijwayelekile zokusebenza;Lapho iphutha lesifunda esifushane lenzeka kugridi yamandla kanye ne-transmission current

okukhulu kunomsinga obucayi wezinto ezisetshenziswa kakhulu, izinto ezisetshenziswa kakhulu zizolahlekelwa amandla ayo aphezulu, kanye nokuphazamiseka kokusebenza kwe-superconducting.

ikhebula le-superconducting lizoba likhulu kakhulu kunelo lomqhubi wethusi ojwayelekile;Lapho iphutha liqedwa, ikhebula le-superconducting lizokwenza

iqale kabusha ikhono layo le-superconducting ngaphansi kwezimo ezijwayelekile zokusebenza.Uma izinga lokushisa eliphezulu superconducting ikhebula ngesakhiwo esithile kanye nobuchwepheshe

isetshenziselwa ukufaka esikhundleni sekhebula lendabuko, izinga lamanje lephutha legridi yamandla lingancishiswa ngempumelelo.Ikhono lekhebula le-superconducting likhawulelwe

iphutha lamanje lilingana nobude bekhebula.Ngakho-ke, ukusetshenziswa okukhulu kwenethiwekhi yokudlulisa amandla e-superconducting eyakhiwe

izintambo ze-superconducting azikwazi nje ukuthuthukisa umthamo wokudlulisela wegridi yamandla, ukunciphisa ukulahlekelwa kokudluliselwa kwegridi yamandla, kodwa futhi zithuthukise

iphutha layo lemvelo lamanje lokukhawulela ikhono, Thuthukisa ukuphepha nokuthembeka kwayo yonke igridi yamandla.

Mayelana nokulahleka komugqa, ukulahleka kwekhebula le-superconducting ikakhulukazi kufaka phakathi ukulahleka kwe-conductor AC, ukulahleka kokuvuza kokushisa kwepayipi lokufakelwa, ukuphela kwekhebula, uhlelo lwesiqandisi,

kanye nokulahlekelwa kwe-nitrogen eyi-liquid okunqoba ukumelana nokujikeleza.Ngaphansi kwesimo sokusebenza kahle kwesistimu yesiqandisi, ukulahleka kokusebenza kwe-HTS

Ikhebula cishe i-50% ~ 60% yaleyo yekhebula evamile lapho idlulisela umthamo ofanayo.Izinga lokushisa eliphansi le-insulated superconducting cable lihle

umsebenzi wokuvikela i-electromagnetic, ngokwethiyori ungavikela ngokuphelele insimu ye-electromagnetic ekhiqizwa umqhubi wekhebula, ukuze ingabangeli

ukungcoliswa kazibuthe emvelweni.Izintambo ze-Superconducting zingabekwa ngezindlela eziminyene njengamapayipi angaphansi komhlaba, angeke aphazamise ukusebenza

wezinto zamandla ezizungezile, futhi ngenxa yokuthi isebenzisa i-nitrogen ewuketshezi engashi njengesiqandisi, iphinde iqede ingozi yomlilo.

Kusukela ngawo-1990, inqubekelaphambili kubuchwepheshe bokulungiselela amateyipu okushisa aphezulu okushisa kuye kwakhuthaza ucwaningo nokuthuthukiswa

superconducting amandla transmission technology emhlabeni wonke.I-United States, i-Europe, i-Japan, i-China, i-South Korea namanye amazwe nezifunda zinakho

yenze ucwaningo nokusebenzisa izintambo ezisezingeni lokushisa eliphezulu.Kusukela ngo-2000, ucwaningo lwezintambo ze-HTS lugxile ekudluliselweni kwe-AC

izintambo, futhi into eyinhloko yokufaka izintambo ngokuyinhloko iwukubanda.Njengamanje, ikhebula le-superconducting lokushisa eliphezulu seliqedile ngokuyisisekelo

isigaba sokuqinisekisa ilabhorethri futhi kancane kancane sangena ekusebenziseni okungokoqobo.

Emazweni ngamazwe, ucwaningo nokuthuthukiswa kwezintambo eziphezulu zokushisa eziphezulu zingahlukaniswa ngezigaba ezintathu.Okokuqala, kwadlula

isiteji sokuhlola sokuqala sobuchwepheshe bekhebula lokushisa eliphezulu le-superconducting.Okwesibili, okokucwaninga nokuthuthukiswa kwabaphansi

izinga lokushisa (CD) lifake ikhebula lokushisa eliphakeme kakhulu elingakwazi ukubona ukusetshenziswa kwezohwebo esikhathini esizayo.Manje, isingenile ku

Isigaba socwaningo lwesicelo se-CD sifake iphrojekthi yokubonisa ikhebula lokushisa eliphakeme kakhulu.Eminyakeni eyishumi edlule, i-United States,

I-Japan, iSouth Korea, i-China, iJalimane namanye amazwe enze izintambo eziningi ze-CD ezifakwe emazingeni okushisa aphezulu.

amaphrojekthi wokufaka isicelo.Njengamanje, kunezinhlobo ezintathu ikakhulukazi ze-CD insulated HTS cable structures: single core, three core kanye ne-three-

isigaba coaxial.

E-China, i-Institute of Electrical Engineering ye-Chinese Academy of Sciences, i-Yundian Inna, i-Shanghai Cable Research Institute, i-China Electric Power

I-Research Institute kanye nezinye izikhungo ziye zenza ucwaningo nokuthuthukiswa kwezintambo eziphezulu kakhulu futhi zenza impumelelo enkulu.

Phakathi kwazo, iShanghai Cable Research Institute iphothule ukuhlolwa kohlobo lwekhebula lokuqala elingu-30m, 35kV/2000A CD elifakwe ikhebula elilodwa eliwumgogodla we-superconducting.

I-China ngo-2010, futhi yaphothula ukufakwa, ukuhlolwa nokusebenza kwesistimu yekhebula engu-35kV/2kA 50m superconducting yekhebula le-Baosteel's superconducting.

iphrojekthi yokubonisa ngo-December 2012. Lo mugqa uyikhebula lokuqala lokushisa eliphansi elivale izinga eliphezulu lokushisa eliphezulu elisebenza kugridi e-China,

futhi iyilayini yekhebula ye-CD evalwe ngezinga lokushisa eliphakeme kakhulu enomthwalo wamanje omkhulu kunawo wonke ezingeni lamandla kagesi afanayo emhlabeni.

Ngo-Okthoba 2019, i-Shanghai Cable Research Institute yaphumelela ohlotsheni lokuhlolwa kwe-CD yokuqala engu-35kV/2.2kA yafaka amakhebula amathathu abalulekile e-superconducting system.

I-China, ibeka isisekelo esiqinile sokwakhiwa kwephrojekthi yemiboniso elandelayo.Iphrojekthi ye-superconducting cable demonstration e-Shanghai

indawo yasedolobheni, eholwa yi-Shanghai Cable Research Institute, isakhiwa futhi kulindeleke ukuthi iqedwe futhi ifakwe emsebenzini wokuhambisa ugesi

ekupheleni kuka-2020. Nokho, kusenendlela ende okufanele ihanjwe ukuze kuthuthukiswe futhi kusetshenziswe izintambo ze-superconducting esikhathini esizayo.Ucwaningo olwengeziwe luzoba

okwenziwa esikhathini esizayo, okuhlanganisa ukuthuthukiswa kwesistimu yekhebula ye-superconducting kanye nocwaningo lokuhlola, ubuchwepheshe besicelo sobunjiniyela besistimu

ucwaningo, ucwaningo lokuthembeka kokusebenza kwesistimu, izindleko zomjikelezo wokuphila wesistimu, njll.

Iziphakamiso zokuhlola nezentuthuko sezizonke

Izinga lobuchwepheshe, ikhwalithi yomkhiqizo kanye nokusetshenziswa kobunjiniyela kwezintambo zamandla, ikakhulukazi izintambo zamandla kagesi aphezulu kanye ne-ultra-high, zimele

lilonke izinga namandla emboni yemboni yezintambo zezwe ngokwezinga elithile.Ngesikhathi “soHlelo Lweminyaka Emihlanu” ye-13, nentuthuko esheshayo

wokwakhiwa kobunjiniyela bamandla kanye nokukhuthazwa okuqinile kokusungulwa kobuchwepheshe bezimboni, inqubekelaphambili yezobuchwepheshe emangalisayo kanye nobunjiniyela obumangalisayo

impumelelo yenziwe emkhakheni wezintambo zikagesi.Kucutshungulwe ezicini zobuchwepheshe bokukhiqiza, amandla okukhiqiza kanye nobunjiniyela

isicelo, isifinyelele ezingeni elithuthukile lamazwe ngamazwe, amanye awo asezingeni eliphezulu lamazwe ngamazwe.

Intambo yamandla kagesi ephezulu kakhulu yegridi yamandla asemadolobheni kanye nokusebenza kwayo kobunjiniyela

Ikhebula lamandla eligqunywe yi-AC 500kV XLPE kanye nezinsiza zalo (ikhebula lakhiwe ngabakwa-Qingdao Hanjiang Cable Co., Ltd., kanti izesekeli ziyi-

ingxenye ehlinzekwe yi-Jiangsu Anzhao Cable Accessories Co., Ltd.), ekhiqizwa yiChina okokuqala ngqa, isetshenziswa ekwakhiweni kwe

Amaphrojekthi wekhebula angu-500kV e-Beijing nase-Shanghai, futhi ayimigqa yekhebula yasemadolobheni esezingeni eliphezulu kakhulu emhlabeni.Isetshenziswe ngokujwayelekile

futhi ibe negalelo elibalulekile ekuthuthukisweni kwezenhlalakahle nezomnotho esifundeni.

Ikhebula le-Ultra-high voltage ac submarine kanye nokusebenza kwalo kobunjiniyela

Iphrojekthi ye-Zhoushan 500kV yokudluliswa kwamandla kagesi kanye noguquko, eqediwe futhi yaqala ukusebenza ngo-2019, iwukuxhumana okunqamula ulwandle.

iphrojekthi yezintambo zikagesi ze-polyethylene ezixhumene ngokuphambano ezinezinga eliphezulu kakhulu lamandla kagesi akhiqizwa futhi asetshenziswa emazweni ngamazwe.Izintambo ezinkulu ezinde futhi

izesekeli zenziwa ngokuphelele ngamabhizinisi asekhaya (phakathi kwawo, izintambo ezinkulu ezingaphansi kwamanzi zikhiqizwa futhi zihlinzekwa nguJiangsu

I-Zhongtian Cable Co., Ltd., i-Hengtong High Voltage Cable Co., Ltd. kanye ne-Ningbo Dongfang Cable Co., Ltd. ngokulandelana, kanye namatheminali ekhebula akhiqizwa

futhi ihlinzekwe yi-TBEA), ebonisa izinga lobuchwepheshe namandla okukhiqiza amakhebuli angaphansi kwamanzi anamandla kagesi aphezulu waseChina nezinye.

Intambo ye-Ultra-high voltage dc kanye nokusebenza kwayo kobunjiniyela

I-Three Gorges Group izokwakha iphrojekthi yokuphehla amandla omoya ogwini lolwandle eRudong, eSifundazweni saseJiangsu, enamandla okudlulisa amandla angu-1100MW.

Kuzosetshenziswa isistimu yekhebula ye-DC engu-± 400kV.Ubude bekhebula elilodwa buzofinyelela ku-100km.Ikhebuli izokhiqizwa futhi ihlinzekwe ngu

I-Jiangsu Zhongtian Technology Submarine Cable Cable Company.Lo msebenzi uhlelelwe ukuthi uphothulwe ngo-2021 ukuze kuhanjiswe ugesi.Kuze kube manje, owokuqala

± 400kV isistimu yekhebula ye-DC engaphansi kolwandle e-China, eyakhiwe ngamakhebuli akhiqizwe i-Jiangsu Zhongtian Technology Submarine Cable Co., Ltd. nekhebula

izesekeli ezikhiqizwe i-Changsha Electrical Technology Co., Ltd., seziphumelele izivivinyo zohlobo ku-National Wire kanye ne-Cable Quality Supervision kanye

Isikhungo Sokuhlola/i-Shanghai National Cable Testing Center Co., Ltd. (ngemuva kwalokhu ebizwa ngokuthi “Ukuhlolwa Kwekhebula Kazwelonke”), futhi isingene esigabeni sokukhiqiza.

Ukuze usebenzisane neMidlalo Yama-Olympic Yasebusika Yamazwe Ngamazwe Yango-2022 e-Beijing Zhangjiakou, iphrojekthi ye-Zhangbei ± 500kV flexible DC transmission

eyakhiwe yi-State Grid Corporation yaseChina ihlelelwe ukwakha iphrojekthi yokubonisa ikhebula ye-DC eguquguqukayo engu-± 500kV enobude obungaba ngu-500m.Izintambo

futhi izesekeli zihlelwe ukuthi zenziwe ngokuphelele ngamabhizinisi asekhaya, okuhlanganisa ukufakwa kwezinto ezifakwa ngaphakathi kanye nokuvikela izintambo.Umsebenzi

iyaqhubeka.

Ikhebula le-Superconducting kanye nesicelo sayo sobunjiniyela

Iphrojekthi yokubonisa yohlelo lwamakhebula e-superconducting endaweni yasemadolobheni e-Shanghai, ekhiqizwa futhi yakhiwa yi-Shanghai Cable.

I-Research Institute, iyaqhubeka, futhi kulindeleke ukuthi iqedwe futhi ifakwe ekusebenzeni kokudluliselwa kwamandla ekupheleni kuka-2020. I-1200m three core

Ikhebula le-superconducting (okwamanje ende kunazo zonke emhlabeni) edingwa ukwakhiwa kwephrojekthi, enezinga lamandla kagesi angu-35kV/2200A futhi likalwe lamanje,

isifinyelele ezingeni eliphezulu lamazwe ngamazwe jikelele, futhi izinkomba zayo eziwumgogodla zisezingeni elihamba phambili lamazwe ngamazwe.

I-Ultra High Voltage Gas Insulated Cable (GIL) kanye Nesicelo Sayo Sobunjiniyela

Iphrojekthi ye-East China UHV AC yokudlulisa iluphu kabili yenethiwekhi yaqalwa ngokusemthethweni ngoSepthemba 2019 esifundazweni saseJiangsu, lapho iSutong

Iphrojekthi yegalari yamapayipi ebanzi ye-GIL iwela uMfula iYangtze.Ubude besigaba esisodwa samapayipi amabili angu-1000kV GIL emhubheni ngu-5.8km, kanti

Ubude obuphelele bephrojekthi yokudlulisa izigaba ze-double circuit icishe ibe ngama-35km.Izinga le-voltage yephrojekthi nobude obuphelele buphezulu kakhulu emhlabeni.I

Uhlelo lwe-ultra-high voltage gas insulated cable (GIL) luphothulwa ngokuhlanganyela amabhizinisi akhiqizayo asekhaya kanye nezinhlangano zokwakha zobunjiniyela.

Ukuhlola ukusebenza nokuhlola ubuchwepheshe bekhebula le-voltage ephezulu kakhulu

Eminyakeni yamuva nje, ukuhlolwa kohlobo, ukuhlolwa kokusebenza kanye nokuhlolwa kwezintambo eziningi zasekhaya ze-ultra-high ze-XLPE ezivale izintambo nezesekeli, okuhlanganisa i-AC kanye

Izintambo ze-DC, izintambo zomhlaba kanye nezintambo ezihamba ngaphansi kolwandle, seziqediwe kakhulu “Ekuhlolweni Kwekhebula Kazwelonke”.Ubuchwepheshe bokutholwa kwesistimu futhi buphelele

izimo zokuhlola zisezingeni eliphezulu emhlabeni, futhi zenze umnikelo oncomekayo embonini yokukhiqiza amakhebula yaseChina nobunjiniyela bamandla

ukwakhiwa.“I-National Cable Inspection” inekhono lobuchwepheshe nezimo zokubona, ukuhlola nokuhlola i-500kV grade ultra-high voltage XLPE

izintambo ezivalekile (okuhlanganisa izintambo ze-AC kanye ne-DC, izintambo zomhlaba kanye nezintambo ezihamba ngaphansi kolwandle) ngokuvumelana nezindinganiso ezithuthukisiwe kanye nokucaciswa kwasekhaya nakwamanye amazwe, futhi

iqedele inqwaba yemisebenzi yokuhlonza nokuhlola yabasebenzisi abaningi ekhaya naphesheya, ngamandla kagesi angu-± 550kV.

Izintambo ezimele amandla kagesi aphezulu kakhulu kanye nezinsiza kanye nezicelo zazo zobunjiniyela zibonisa ngokugcwele ukuthi imboni yamakhebula yaseChina ikumazwe ngamazwe.

Izinga elithuthukisiwe mayelana nokuqanjwa kabusha kwezobuchwepheshe, izinga lobuchwepheshe, amandla okukhiqiza, ukuhlolwa nokuhlola kulo mkhakha.

Imboni "Izimbambo Ezithambile" kanye "Nezingqinamba"

Nakuba imboni yamakhebula yenze inqubekelaphambili enkulu kanye nezimpumelelo ezivelele kulo mkhakha eminyakeni yamuva, kuphinde kube “nobuthakathaka” obuvelele.

noma “izimbambo ezithambile” kulo mkhakha.Lobu “buthakathaka” budinga ukuthi senze imizamo emikhulu yokulungisa nokusungula izinto ezintsha, okuphinde kube isiqondiso nomgomo we

imizamo nentuthuko eqhubekayo.Ukuhlaziya kafushane kanje.

(1) Izintambo ezivalekile ze-EHV XLPE (okuhlanganisa izintambo ze-AC ne-DC, izintambo zasemhlabeni nezintambo ezihamba ngaphansi kolwandle)

“Ubambo oluthambile” lwayo oluvelele ukuthi izinto zokuvikela ezihlanzekile kakhulu nezinto zokuvikela ezibushelelezi zingeniswa ngaphandle ngokuphelele, okuhlanganisa nokugquma.

kanye nezinto zokuvikela zamaphrojekthi amakhulu angenhla.Lona "ibhodlela" elibalulekile okufanele liqedwe.

(2) Imishini yokukhiqiza eyisihluthulelo esetshenziswa ekwenzeni izintambo zikagesi ezixhumene ne-polyethylene ezixhumeke kakhulu

Njengamanje zonke zithengwa phesheya, okungolunye “ubambo oluthambile” lwemboni.Njengamanje, inqubekelaphambili enkulu esesiyenzile emkhakheni we

Amakhebuli kagesi aphezulu kakhulu “ayacutshungulwa” kunokuthi “ukudala”, ngoba izinto ezisetshenziswayo eziyinhloko kanye nemishini ebalulekile kusathembele emazweni angaphandle.

(3) Ikhebula le-voltage ephezulu kakhulu kanye nokusebenza kwayo kobunjiniyela

Amakhebuli kagesi aphezulu kanye nezinhlelo zawo zobunjiniyela ezingenhla amele izinga elingcono kakhulu endaweni yekhebula lamandla kagesi aphezulu e-China, kodwa hhayi ileveli yethu iyonke.

Izinga eliphelele lenkambu yekhebula lamandla aliphezulu, okubuye kube enye ye "amabhodi amafushane" ayinhloko embonini.Kukhona nezinye eziningi "amabhodi amafushane" futhi

izixhumanisi ezibuthakathaka, njengalezi: ucwaningo oluyisisekelo kumakhebuli anamandla kagesi aphezulu kanye ne-ultra-high nezinhlelo zawo, ubuchwepheshe bokuhlanganisa kanye nemishini yokusebenza ye-super clean.

i-resin, ukuqina kokusebenza kwempahla yamakhebula kagesi aphakathi nendawo naphezulu, amandla okusekela ezimbonini okuhlanganisa amathuluzi ayisisekelo, izingxenye kanye

izinto ezisizayo, ukwethembeka kwenkonzo yesikhathi eside yezintambo, njll.

Lezi “zimbambo ezithambile” kanye “nobuthakathaka” ziyizithiyo nezithiyo ukuze iChina ibe izwe eliqinile lamakhebula, kodwa futhi ziyisiqondiso semizamo yethu

nqoba izithiyo futhi uqhubeke nokusungula izinto ezintsha.