Ungazi yonke imikhiqizo emisha eshicilelwa lapha, futhi ubone ukukhula kwethu kanye nokusungula izinto ezintsha.
Usuku: 07-29-2025
Njengoba sishintsha njalo siye ezinhlelweni zikagesi ezingaphansi komhlaba, isidingo sokusatshalaliswa okuthembekile, okuphephile nokuguquguqukayo siyanda nsuku zonke. Lokhu kudinga ukusethwa okuhlelekile kwezixhumi ze-loadbreak elbow ukuze zixhumeke futhi zinqamule amasekethe anamandla ngokuphephile.
Lezi zixhumi zixhuma izintambo ezingaphansi komhlaba ezihlahleni zangaphambili ezifile kuma-transformer afakwe ku-padmount, okuqinisekisa ukuxhumana okuphephile nokuthembekile phakathi kwezintambo zikagesi nama-transformer.
Ngakho-ke, yini ngempelaIsixhumi sendololwane ye-LoabreakKusebenza kanjani?
Ake siphendule le mibuzo, phakathi kweminye eminingi, kulesi sihloko.
I-Load brake elbow iyisixhumi esihlukanisekayo, esivikelwe ngokushisa, esisetshenziswa ezinhlelweni eziningi zamandla aphansi kuya kwaphakathi zokushintsha umthwalo ngamandla. Izixhumi ze-Load break elbow zisetshenziselwa ukuxhuma izintambo ezingaphansi komhlaba, ezinama-voltage aphakathi kuma-transformer, ama-switchgear kanye neminye imishini.
Lezi zixhumi zihlinzeka ngoxhumano oluvikelwe ngokuphelele nolungena emanzini, futhi zenzelwe ukwenza noma ukuphula uxhumano olungaphansi komthwalo. Zikalwa kakhulu ngezinhlelo ze-15 kV, 25 kV kanye ne-35 kV.
Ukuqinisekisa ukushintshana nokusebenza okuphephile ngaphansi komthwalo kanye nakuzo zonke izinhlelo zikagesi ezahlukahlukene, izindololwane eziningi zokuphumula umthwalo zihlangabezana nezindinganiso zomkhakha ezifanaI-IEEE 386.
Izindololwane zesinkwa somthwalo zivumela ukunqanyulwa okubukhoma kanye nokuxhumeka kabusha ngosizo lwamathuluzi anamathelayo. Nazi ezinye zezici zayo ezibalulekile:
Lona umsebenzi wabo oyinhloko, njengoba bengaphazamisa futhi baxhumanise uxhumano olufika ku-200 A, ngenkathi behlukanisa noma behlukanisa imishini ehlukene futhi ngaphandle kokunciphisa amandla ohlelweni lonke.
Iphuzu le-electrode ye-ceramic lidlula umzimba wendololwane futhi lisiza ukucima i-arc eyakhiwe lapho kuhlukanisa uxhumano ngaphansi komthwalo.
Abasebenzi bangasebenzisa amathuluzi okufaka ugesi (izinti ezishisayo) ukuze bakhiphe futhi bafake indololwane. Lapha, kusetshenziswa indlela yesipilingi ukunciphisa ukucindezeleka kukagesi kanye nokuguguleka, kuyilapho kulawulwa ukuqaliswa kwe-arc.
Amaphuzu okuhlola amandla ahlanganiswe ezindololwaneni zokuphumula umthwalo ukuqinisekisa ukuthi uxhumano lubukhoma ngaphambi nangemva kokunqanyulwa. Lawa maphuzu okusebenza awaxhunywanga nomqhubi oyinhloko.
Zonke lezi zingxenye zisebenza ngokuvumelana ukuvumela izixhumi zokuqeda umthwalo ukuthi zixhumane futhi zinqamule ukuxhumana okubukhoma ngenkathi kugcinwa ukuphepha komqhubi kanye nohlelo.
Izixhumi zokuvala umthwalo ziza ngezinhlobo ezahlukene ngokusekelwe ekilasini le-voltage, indawo yohlelo lokusebenza kanye nokucushwa. Ake sixoxe ngezinye zezinhlobo ezisetshenziswa kakhulu:
Izindololwane zokuvala umthwalo ziza ngezigaba ezahlukene zama-voltage, ezinye zazo yilezi:
15kV:Zenzelwe amasekethe afinyelela ku-15 kV, anomsinga oqhubekayo wama-Ampere angu-200. Lawa ma-elbow connectors angu-15 kV avikelwe ngokuphelele, acwiliswe emanzini futhi ngezinye izikhathi anezixhumi ze-bimetal.
25kV:Lokhu Izindololwane zokuphumula umthwalo ezingama-25 kvZilinganiswa ezinhlelweni ezifika ku-24 kV, ngokuvamile ku-250 A continuous current enamandla okulayisha ngokweqile angu-300 A amahora angu-8. Zisekela izintambo ezifakwe i-XLPE noma i-EPR ezifakwe i-insulation ezinezingxenye eziwela umqhubi kusukela ku-~25–120 mm². Zivame ukusetshenziswa kakhulu ezinhlelweni zikagesi zesimanje futhi zinikeza indlela ephephile nephephile yokuxhuma/ukunqamula amasekethe amaningi.
35kV:Nakuba 25Izindololwane zokuphumula umthwalo we-KvNjengoba zisetshenziswa kaningi, ama-kV angu-35 nawo asetshenziselwa ezinye izinhlelo zokusebenza ezithile. Angamelana nogesi oqhubekayo ofinyelela kuma-Ampere angu-200 kanye nesilinganiso se-voltage noma afinyelela ku-35 kV. Ukuze aphathe le voltage enkulu, afaka i-peroxide cured EPDM insulation kanye nesivikelo se-semiconducting, isixhumi sokucindezela i-coppertop, i-tin-plated copper probe ene-arc-follower tip, kanye namaphuzu okuhlola okuzikhethela.
Izixhumi zokuvala umthwalo ziza ngezindlela ezahlukene ukuze zivumelane nezinhlelo zokusebenza ezahlukene
Ingqiniba ejwayelekile yokuphumula umthwalo:Lezi zisetshenziselwa ukuxhuma ikhebula elilodwa emshinini owodwa (isb. i-transformer, i-switchgear). Zisebenzisa amathiphu e-ceramic probe aphumayo ukusekela imisebenzi enamandla.
Ingqiniba yohlobo lwe-junction:Zibizwa nangokuthi ama-multi-way noma ama-tee configuration elbows. Zivumela ukuhlangana ngokuxhumanisa izintambo eziningi ndawonye ngaphakathi kwendlu eyodwa evalekile. Ukuhlelwa okuvamile kufaka phakathi ama-junction elbows anamaphuzu amabili, amaphuzu amathathu, kanye namaphuzu amane asetshenziswa ekwakhiweni okusatshalaliswa okuyinkimbinkimbi.
Ngephuzu lokuhlola elinamandla:Lezi zindololwane zokweqa umthwalo zifaka inzwa ebunjiwe, ekwazi ukukhombisa i-voltage yesekethe (ngokuvamile cishe i-10-12% ye-voltage yesigaba kuya emhlabathini). Lesi sici senza ukuqinisekiswa kwe-voltage ephephile ngaphandle kokunika amandla isixhumi ngqo.
Ngaphandle kwephuzu lokuhlola:Lezi zifanele ukufakwa lapho ukuhlolwa kwe-voltage kwenziwa khona kwenye indawo, lezi zindololwane azikwazi ukunikeza impendulo ye-voltage yesigaba-kuya-phansi ngokushesha.
Nakuba izindololwane eziningi eziphula umthwalo ziza nomklamo okwazi ukucwiliswa emanzini, ezinye ziza nemiklamo engagqwali.
Imiklamo Engaphansi Komhlaba
Le miklamo ecwiliswa emanzini ingasebenza ngokuthembekile ngaphansi kwamanzi noma enhlabathini egcwele amanzi uma ihlanganiswe kahle nezihlahla noma amapulaki ahambisanayo. Isibonelo, i-Anhuang'sIzindololwane zokuphumula umthwalo ezingama-25 kVinikeza uxhumano olucwiliswa ngokuphelele noluhlukanisekayo.
Imiklamo Engagqwali
Ezinye izindololwane zokuphumula umthwalo zisetshenziswa ezindaweni ezigqwalisayo, njengezindawo ezisogwini noma izitshalo zamakhemikhali. Zihlinzeka ngokuxhumana okuhlukanisiwe okuvikelwe ngokuphelele nokucwiliswa emanzini ngehadiwe yensimbi engagqwali kanye nezingxenye zerabha ze-EPDM ezenzelwe ukumelana nokuwohloka kwemvelo ezimweni ezinzima.
Nazi ezinye izindlela zokusebenzisa izindololwane zokuphumula umthwalo:
Ukusatshalaliswa kwamandla ngaphansi komhlaba
Izindololwane zokuvala umthwalo zisetshenziswa kabanzi ukuxhuma izintambo ezingaphansi komhlaba ze-voltage ephakathi kuma-transformer, ama-switchgear, neminye imishini ngaphandle kokuphazamisa isevisi.
Ama-transformer nama-switchgear afakwe ku-pad
Zenza kube lula ukusebenza okuphephile, okunamathelayo lapho kuxhuma noma kunqanyulwa imishini ezinhlelweni ezibukhoma njenge-transformers ezifakwe ku-pad kanye ne-switchgear.
Ukufakwa kwezimboni, izinsiza kanye nezentengiselwano
Izindololwane zokuvala umthwalo zisetshenziswa kuzo zonke iziteshi zikagesi, izinhlelo zikagesi zezimboni, kanye nezakhiwo zezentengiselwano lapho kudingeka khona ukuhlukaniswa kwezingxenye kanye nokushintsha umthwalo ophilayo.
Amapulazi omoya, elanga kanye namandla avuselelekayo
Lezi zilungele ukufakwa okuvuselelwayo (njengamapulazi omoya kanye nelanga) lapho ukusebenza okuguquguqukayo, okusebenzayo kusiza ukunciphisa isikhathi sokungasebenzi ngesikhathi sokulungiswa.
Izinhlelo Zokumbiwa Nezitimela
Kusetshenziswa ezindaweni ezinzima njengemisebenzi yezimayini kanye nezinhlelo zikagesi zesitimela noma zedolobha ukuze kugcinwe amandla aqhubekayo ngenkathi kuhlukanisa izingxenye ukuze zisetshenziselwe isevisi.
Izixhumi zendololwane ze-load break ziyimfuneko uma ufuna ukuhlukanisa ezinye izingxenye zesistimu kagesi engaphansi komhlaba ene-voltage ephakathi nendawo. Zinikeza indlela ethembekile nephephile yokulungisa ezinye izingxenye zesekethe ngaphandle kokuphazamisa ukunikezwa kukagesi okuphelele.
Uma ufuna ukuthengaIzixhumi zendololwane ze-25 kV loadbreakngesicelo sakho, kufanele uhlole uhla lwe-Anhuang lweizindololwane zokuphumula umthwalo.
Ikheli：No.27, umgwaqo iBinhai South 3, iYueqing Economic Development Zone, iDolobha laseWenzhou, iSifundazwe saseZhejiang, eShayina.
