Umehluko omkhulu phakathi kweyunithi eyinhloko yeringi ye-SF6 kanye neyunithi eyinhloko yendandatho yegesi yemvelo i-insulation medium, ukusebenza kwemvelo, izimo zokuphepha kanye nezicelo.
- I-insulation medium: Iyunithi eyinhloko ye-SF6 ring main isebenzisa igesi ye-sulphur hexafluoride (SF6) njengendawo yokufakelwa, kuyilapho iyunithi eyinhloko yendandatho yegesi evumelana nemvelo ithatha amagesi amasha ahambisana nemvelo afana ne-perfluoroisobutyronitrile (C4F7N) njenge-insulation medium. kubhekwa njengegesi enamandla ebamba ukushisa, enamandla amakhulu okucekela phansi imvelo. Ngokuphambene, amagesi anobungani bemvelo anokukhishwa okulinganayo kwe-CO2 okuphansi kakhulu futhi anciphisa ukukhishwa kwegesi ebamba ukushisa ngaphezu kwama-99%, okuhlinzeka ngezinzuzo ezibalulekile zemvelo.
- Ukusebenza kwemvelo: Nakuba iyunithi eyinhloko ye-SF6 indandatho inokusebenza okuhle kakhulu kwe-insulating, inomthelela omubi kakhulu endaweni ezungezile ngenxa yokusetshenziswa kwegesi ye-SF6. Ukuvikelwa kwemvelo igesi indandatho inethiwekhi iKhabhinethi ngokusebenzisa uhlobo olusha igesi ukuvikelwa kwemvelo, kakhulu ukunciphisa umthelela imvelo, ngokuhambisana nezidingo zokuvikelwa kwemvelo, kuwumkhuba esizayo ukuthuthukiswa ring network iKhabhinethi.
- Ukuphepha: Zombili izinhlobo zama-RINGC zakhelwe kucatshangelwa ukuphepha. Ama-SF6 RINGCs aqinisekisa ukuphepha kokusebenza ngokuthatha izinyathelo ezifana nokukhiya ngomshini nemisebenzi yokukhiya kagesi. Iyunithi eyinhloko yendandatho yegesi yokuvikela imvelo iqinisekisa ukuvalwa nokuphepha kweyunithi eyinhloko yendandatho ngokwamukela idizayini yesakhiwo sensimbi engagqwali ene-laser evalwe ngokuphelele. Phakathi naleso sikhathi, wonke ama-circuits conductive ahlanganiswe ne-epoxy resin noma irabha ye-silicone, eqinisekisa ukuphepha okuphezulu kokusebenza nokusebenza.
- Izimo zohlelo lokusebenza: Amakhabethe e-SF6 ring mains asetshenziswa kabanzi ekusebenzeni kwawo okuhle kakhulu kokufakwa nokuqina, futhi afaneleka ngezidingo zamandla eziyinkimbinkimbi. Izivalo ze-eco-gas zifaneleka kakhulu ezinhlelweni ezigcizelela ukusebenza kwemvelo, njengalezo ezidinga ukunciphisa ukukhishwa kwegesi ebamba ukushisa, kanye nalezo ezisebenzisa amasu okuphakama kwekhabhoni kanye ne-carbon neutral.
Ukufingqa, umehluko omkhulu phakathi kwe-SF6 RINGC ne-EGF RINGC ilele ku-insulation medium, ukusebenza kwemvelo, ukuphepha kanye nezimo zohlelo lokusebenza.I-SF6 RINGCs kanye ne-EGF RINGCs yizinto ezisetshenziswayo ezivamile embonini yamandla kagesi, futhi zidlala indima ebalulekile emandleni kagesi. uhlelo lokusabalalisa. Kodwa-ke, ngokuthuthukiswa kokuqwashisa ngokuvikelwa kwemvelo kanye nokuqiniswa kwemithetho yokuvikela imvelo, isidingo samakhabhinethi amakhulu endandatho yegesi evikelekile embonini yamandla nawo akhula kancane kancane. Mayelana nokusebenza kwemvelo, igesi ye-SF6 esetshenziswa emakhabetheni amakhulu e-SF6 inomphumela ophezulu we-greenhouse kanye namandla okufudumala kwembulunga yonke, kuyilapho igesi ehambisana nemvelo esetshenziswa emakhabetheni amakhulu endandatho yegesi enobungani bemvelo ihambisana nemvelo futhi ayithinti kabi umkhathi, okuyinto ihambisana nezidingo zesimanje zokuvikela imvelo. Mayelana nezitayela zemakethe, isidingo samakhabhinethi amakhulu endandatho yegesi evumelana nemvelo embonini yamandla sikhula kancane kancane ngokuthuthukiswa kokuqwashisa ngokuvikelwa kwemvelo kanye nokuqiniswa okuqhubekayo kwemithetho yokuvikela imvelo. Bayanda izinkampani amandla kagesi kanye namaphrojekthi baqala ukukhetha ukuvikelwa kwemvelo igesi indandatho network iKhabhinethi, ukuvikelwa kwemvelo igesi indandatho network iKhabhinethi kancane kancane esikhundleni bendabuko SF6 ring inethiwekhi iKhabhinethi, abe imikhiqizo evamile embonini yamandla.
I-Seven Stars Electric Co., Ltd. iyinkampani esebenza ngokukhethekile ekukhiqizeni amakhabethe egesi angangeni kwemvelo. Ngeqembu elichwepheshile le-R&D kanye nemishini yokukhiqiza ethuthukisiwe, inkampani iyakwazi ukuhlinzeka amakhasimende ngendandatho yegesi eyindandatho esezingeni eliphezulu ehambisana nemvelo imikhiqizo nezisombululo. Le nkampani izibophezele ekukhuthazeni ukusetshenziswa kwamakhabhinethi enethiwekhi yendandatho yegesi eyindandatho enobungani bemvelo embonini yamandla, ukuze kuhlangatshezwane nesidingo samakhasimende semikhiqizo ehambisana nemvelo, kanye nokusiza imboni yamandla ukuba ithuthuke ngendlela evumelana nemvelo futhi esimeme.
Kunezinhlobo eziningi ze-vacuum circuit breaker zangaphandle, kanye ne-ZW32 ne-ZW20ziningi
ethandwa emakethe, bese kuthiwaniumehluko phakathi kwe-them? Indlela yokukhetha?
I-ZW32 ne-ZW20 zihlukile ekusebenzeni, izindlela zokusebenzisa, ubukhulu; ukuze kube lula inkumbulo nokuhlonza okunembile, imininingwane ehlukene yamamodeli ibhaliwe.
I-ZW32 ne-ZW20 izinombolo ze-serial zedizayini zama-vacuum circuit breaker. Umehluko wabo wangempela umehluko ekubukeni kanye nomehluko ekusebenzeni kwe-insulation. Amazwe ahlukene noma izifunda zinezidingo ezahlukene, izidingo zemodeli nazo zihlukile.
I-ZW32 yochungechunge lwangaphandle lwe-vacuum breaker shape luhlobo olufakwe isigxobo, i-vacuum arc ecisha i-circuit breaker.
I-ZW20 yochungechunge lwangaphandle lwe-vacuum breaker shape iwuhlobo lwebhokisi oluvamile, iwuhlobo lwe-breakable circuit breaker ene-vacuum arc yokucisha, ukufakwa okungcono kune-ZW32.
Yaboumsebenzi uyafana in vikelaion kwei-transformer nomaumugqa wezintambo. Kokubili kungahlukaniswa ngezinhlobo zemanuwali, ezinemoto noma ezihlakaniphile,njll.
Umehluko othize phakathi kwe-ZW32 kanye ne-ZW20 yilokhu:
I-1.ZW32 thayipha i-vacuum circuit breaker yangaphandle efakwe ngesigxobo ye-voltage elinganiselwe engu-12KV, i-AC yesigaba ezintathu 50Hz yangaphandle imishini yokusabalalisa amandla kagesi aphezulu. Ngokuyinhloko isetshenziselwa ukuphula nokuvala umthamo wamanje, ukulayisha ngokweqile okwamanje kanye nesifunda esifushane samanje ohlelweni lwamandla. Ilungele ukuvikelwa nokulawula ohlelweni lokusabalalisa amandla eziteshini ezincane kanye namabhizinisi ezimboni nezimayini, futhi ifaneleka kakhulu ukwakhiwa kwegridi kagesi yasemadolobheni nasezindaweni zasemakhaya kanye noguquko kanye nezindawo zokusebenza njalo. I-ZW32 vacuum circuit breaker ifakwe indlela yokusebenza yokugcina amandla entwasahlobo, engasetshenziswa ngesandla, ngemoto nangekude. Iswishi yokuhlukanisa ingafakwa ohlangothini lwesihlukanisi sesekethe ukuze kwakheke i-vacuum vacuum breaker yangaphandle ene-voltage ephezulu kanye nomshini wangaphandle wenhlanganisela yeswishi ye-high-voltage isolation switch, okwandisa ukuphuka okubonakalayo okuhlukanisayo nokunomsebenzi othembekile wokukhiya. Ngokwezidingo zomsebenzisi, ingahlanganiswa nesilawuli esihambisanayo ukwenza i-AC high-voltage vacuum automatic recloser, i-automatic sectioner, ukunikezwa kwamandla okuzihlinzekela okusebenzayo, kuyithuluzi elifanele lokubona ukuzenzekelayo kwenethiwekhi yokusabalalisa. Isakhiwo se-voltage transformer ephezulu singafakwa ngaphandle noma ngokudidiyelwe. I-ZW32-12G/1250-20, i-ZW32-12 uchungechunge olufakwe ngezigxobo olufakwe ngaphandle i-voltage vacuum circuit breaker iyisigaba sesithathu se-AC 50hz, i-voltage elinganiselwe engu-12kv yangaphandle ephezulu yamandla kagesi. I-circuit breaker iwumklamo omusha owenziwe nge-miniaturized, isakhiwo esivalwe ngokugcwele, ubuchwepheshe bokupakisha begumbi lokucisha i-arc eliyingqayizivele, ukusebenza kahle kokuvala uphawu, umswakama-ubufakazi, i-anti-condensation, ifanele izinga lokushisa eliphezulu nezindawo ezinomswakama. I-ZW32-12G isisetshenziswa se-circuit breaker isolation switch sihlanganiswe ne-ZW32 circuit breaker+ isolation switch.
I-ZW20-12 yangaphandle ye-AC high voltage demarcation vacuum circuit breaker iyiswishi yokuhlukanisa imingcele yomsebenzisi. Yakhiwa kakhulukazi i-ZW20-12 vacuum circuit breaker body, isilawuli sokubona amaphutha kanye ne-transformer yangaphandle kagesi. Okuthathu kuxhunywe ngogesi ngesokhethi yendiza kanye nekhebula lokulawula elivalwe ngaphandle; Ngomsebenzi wokuthola amaphutha, umsebenzi wokuvikela nokulawula kanye nomsebenzi wokuxhumana, ingathola iphutha lamanje lokulandelana kwe-zero kanye ne-interphase iphutha lesifunda esifushane ngaphakathi nangaphandle komngcele wezinga le-MA, futhi ibone ukususwa okuzenzakalelayo kwephutha lesigaba esisodwa kanye ne-interphase. iphutha le-short-circuit; Imodi ye-vacuum yokushintsha umzimba ivala i-arc futhi isebenzisa ukugqunywa kwegesi ye-SF6; ithange legesi elivalwe uphawu elinobufakazi bokuqhuma kanye nobuchwepheshe besakhiwo sokufakelwa, ukusebenza kokuvala uphawu kuhle kakhulu, igesi ye-SF6 yangaphakathi ngeke ivuze, futhi ngeke ithintwe imvelo yangaphandle. Indlela yokusebenza yasentwasahlobo yenziwe yaba mincane futhi yathuthukiswa ekwakhiweni kokusebenza, futhi ukwethembeka komsebenzi kuthuthukiswa kakhulu uma kuqhathaniswa nendlela evamile yasentwasahlobo ;Ukuxhumana phakathi kweshafu nomkhono weluphu eyinhloko kwamukelwa. Ukumelana nokuxhumana kwe-loop eyinhloko kuncane futhi izinga lokushisa liphansi.
Ngakho-ke umehluko phakathi kwalokhu kokubili usemkhulu impela, kokubili ngokubukeka nokusebenza, kunomehluko obalulekile.
Uhlobo olujwayelekile lwe-smart voltage yokusebenza: 220V
Ukucushwa kohlobo lwe-Smart: i-FTU, ama-pcs amathathu ama-transformer amanje (ngokuhlangene abizwa ngokuthi: ukulandelana kwezigaba ezintathu okuhlanganisiwe), i-voltage transformer eyaziwa ngokuthi i-PT (umsebenzi we-PT ukuguqula i-high-voltage 10000V ibe ngu-220V, bese inikezela amandla ku-FTU ). Isilawuli kude ekuvuleni nasekuvaleni.
Ukucushwa kohlobo lwemanuwali: ama-transformer amabili amanje (ukuvikelwa kwezigaba ezimbili ze-AC), angavulwa futhi avalwe ngesandla.
Impahla yegobolondo: ZW32 ngokuvamile yenziwe ngensimbi engagqwali; I-ZW20 inepuleti eligoqiwe elibandayo lokufafaza, insimbi engagqwali.
Zombili ziyi-high-voltage vacuum circuit breaker yangaphandle, izindleko ze-ZW32 ziphakeme uma ziqhathaniswa ne-ZW20. Ukukhetha okukhethekile kusekelwe ezimeni zemvelo, kanye nezidingo zenkampani ngayinye yezinsiza.
Amaswishi agxunyekwe ezigxotsheni zangaphandle emigqeni yokusabalalisa phezulu engu-10kV asetshenziswa kumanethiwekhi okusabalalisa asemadolobheni nasezindaweni zasemakhaya njengemishini yokushintsha imishini yokuphuka, ukuvala nokuthwala amaza olayini okulayisha kanye namaza angasebenzi. Isiphakeli esijwayelekile esibekwe ngezigxobo (iswishi yokuklama) sihlelwa ngokuyinhloko ngumzimba wokushintsha + i-FTU. Iqoqo lokuqala nelesibili eliphelele elihlanganisiwe le-breaker-mounted circuit breaker ngokuvamile lihlelwa ngumzimba wokushintsha + i-FTU (itheminali yokuphakela ezenzakalelayo) enezinzwa.
1, Ikholomu yokushintsha ngezigaba
Ngokusho kwe-breaking capacity points:
a. Iswishi yokunqamula ikholomu: ayikwazi ukuvala, ukuvula nokuphula umthwalo ojwayelekile wamanje, kukhona ukuphuka okucacile, okusetshenziselwa ukulungiswa komugqa wokuzihlukanisa
b. Iswishi yokulayisha okukukholomu: ekwazi ukuvala, ukuthwala kanye nokuphula umthwalo ovamile wamanje (≤630A), ekwazi ukuthwala kodwa ingaphuli i-switchgear yamanje enephutha.
c. I-on-circuit breaker: i-switchgear ekwazi ukuvala, ukuthwala nokuphula umthwalo ovamile wamanje (≤630A) kanye nephutha lamanje (≥20kA).
d. Fuse kukholomu: ukuze unqamule i-short-circuit current, vikela umugqa
Indlela yokucima i-arc: ukucisha i-arc ye-vacuum, ukucima i-arc ye-SF6, ukucisha i-arc kawoyela (kuqediwe)
I-insulation: ukufakwa komoya, ukufakwa kwegesi kwe-SF6, ukwahlukanisa okuhlanganisiwe, ukufakwa kwamafutha (kuqediwe)
Ihlukaniswe ngokusho kwesilawuli esifakiwe:
a. Ukushintshwa komngcele: isiguquli sokulandelana sikaziro esakhelwe ngaphakathi, esinomsebenzi wokuvikela ukulandelana okuyiziro, esinomshini wokulayisha noma isinqamuli sesifunda.
b. I-Voltage type load switch: ingavula futhi ivale ngokuzenzakalelayo isango ngokuya ngokushintsha kwamandla kalayini nhlangothi zombili.
c. Iswishi yokulayisha ephakathi nendawo: Ayikwazi ukuvula nokuvala izinqamuli zamanje zesiyingi esifushane.
I-SF6 insulating gas iyigesi engenambala, engenaphunga, engenabuthi, engashi, futhi inezici ezinhle kakhulu zokufakwa kukagesi nezici zokucisha i-arc, ukuminyana kuphindwe izikhathi ezi-5 kunomoya, futhi akulula ukuvuza.
2. Iswishi yokunqamula kwikholomu
I-column isolation switch, eyaziwa nangokuthi isango lokuhlukanisa ummese, iwuhlobo lwemishini yokulawula ngaphandle kwedivayisi yokucisha i-arc, umsebenzi wayo oyinhloko ukuhlukanisa ukunikezwa kwamandla ukuze kuqinisekiswe ukuphepha kwezinye izinto zokugcinwa kwemishini kagesi, ngakho-ke akuvunyelwe ukusebenza ngomthwalo. . Kodwa-ke, ngaphansi kwezimo ezithile, kuvunyelwe ukuxhuma noma ukunqamula izifunda zamandla amancane. Ingenye yemishini kagesi esetshenziswa kakhulu phakathi kwamaswishi ane-voltage ephezulu.
Iswishi yokuhlukanisa ikholomu ingasetshenziselwa ukulungisa ukucisha kwemishini, ukuthola amaphutha, ukuhlolwa kwekhebula, ukwakha kabusha indlela yokusebenza, njll., ukudonsa uvule inkinobho yokuhlukanisa ikholomu kungenza isidingo semishini yokulungisa nokunye ukuhlukaniswa komugqa osebenzayo, ukusungulwa igebe elithembekile lokwahlukanisa, ukunikeza abasebenzi kungabonakala uphawu lokunqamula olusobala, ukuqinisekisa ukuthi ukuphepha komsebenzi wesondlo noma wokuhlola. Izinzuzo zezinqamuleli ezifakwe kukholomu yizindleko eziphansi, ubulula nokuqina. Ngokuvamile isetshenziswa njengeswishi yokuklama yamalungelo endawo yomugqa wasemoyeni kanye nomsebenzisi, futhi njengeswishi yokuhlukanisa intambo yekhebula nolayini ongaphezulu, futhi ingafakwa futhi ohlangothini olulodwa noma zombili izinhlangothi zomthwalo wokuxhumana nolayini. shintsha ukuze kube lula ukuthola amaphutha, ukuhlolwa kwekhebula nokulungiswa ukuze kuthathelwe indawo iswishi yokulayisha othintana naye, njll. Iswishi yokunqamula ayikwazi ukuthwala imithwalo elinganiselwe noma isetshenziswe njengeswishi ehlukanisayo.
Iswishi yokunqamula ayikwazi ukusetshenziswa ngomthwalo olinganiselwe noma umthwalo omkhulu, futhi ayikwazi ukuhlukanisa nokuvala umthamo wamanje kanye nomjikelezo omfushane wamanje. Ngokuvamile, ngesikhathi sokusebenza kokunikezwa kwamandla, inkinobho yokunqamula ivaliwe kuqala, ilandelwa i-breaker circuit noma i-switch switch; ngesikhathi sokusebenza kokuhluleka kwamandla, i-circuit breaker noma inkinobho yokulayisha iyanqanyulwa kuqala bese kuba inkinobho yokunqamula.
Iswishi yokunqamula ingathwala ngokuthembekile ukusebenza kwamanje kanye nesekhethi emfishane, kodwa ayikwazi ukuphula umthwalo wamanje. Ingakwazi ukuvula futhi ivale i-transformer engalayishiwe nge-excitation current engekho ngaphezu kwe-2A kanye nomugqa ongalayishiwe one-capacitance current engekho ngaphezu kwe-5A. Ngokuvamile, amandla okuqina okushintshashintshayo angeqi ku-40kA, futhi kufanele kuqashelwe ukulinganisa lapho kukhethwa iswishi yokunqamula. Impilo yokusebenza kwezinqamuleli cishe imijikelezo engu-2000.
3, Ukushintsha kokulayisha kwekholomu
I-column load switch iyisisetshenziswa esilula sokucisha i-arc, singalayishwa ngokulawula izinto zikagesi ukuze zihlukanise futhi zivale isekethe. Ingakwazi ukunqamula umthamo othile wamanje kanye nokulayisha ngokweqile kwamanje, kodwa ayikwazi ukunqamula i-short-circuit current, futhi kufanele isetshenziswe ochungechungeni olune-high-pressure fuse ukuze kunqandwe i-short-circuit current ngosizo lwe-fuse.
Iswishi yokulayisha iwuhlobo lomshini oshintshayo phakathi kweswishi enqamulayo kanye nesiphazamisi sesekethe, ikakhulukazi esetshenziselwa ukuhlukanisa ulayini nokuhlukaniswa ngamaphutha.
Kukhona ikakhulukazi ama-switch load akhiqiza igesi, ama-vacuum namaswishi okulayisha e-SF6. Ukushintsha komthwalo okhiqiza igesi ukusetshenziswa kwezinto eziqinile ezikhiqiza igesi ezakhiwe ngama-slits ku-arc ngaphansi kwesenzo senani elikhulu lamagesi ukuze enze i-arc eqhuma igesi, ngenxa yesakhiwo sayo esilula, izindleko eziphansi futhi yake yasetshenziswa kabanzi. I-Vacuum, i-SF6 load switch kanye ne-vacuum, i-SF6 ye-circuit breaker shape, imingcele iyafana, umehluko wukuthi isishintshi somthwalo asinayo i-CT yokuvikela, ayikwazi ukuvula i-short-circuit current, kodwa ingakwazi ukumelana ne-short-circuit current, ivale wamanje wesifunda esifushane, esinempilo ende yesevisi, izici ezingenakulungiswa, ukuphila komshini, izikhathi ezilinganiselwe zokuvula nokuvala izikhathi ezingaphezu kuka-10,000, ezifanele ukusebenza njalo.
Ukushintsha kokulayisha kwekholomu okuvame ukusetshenziswa emsebenzini ngokuvamile kusetshenziswa inkinobho yokulayisha i-vacuum yekholomu. I-Vacuum load switch isebenzisa ukucisha i-arc ye-vacuum, ukufakwa kwe-SF6, uhlobo lwebhokisi elivamile lezigaba ezintathu, i-VSP5 kagesi kagesi noma indlela yokusebenza yasentwasahlobo, i-transformer yamanje ingakhelwa ngaphakathi, ikhebula noma indawo yokugcina impahla, ingakhelwa ngaphakathi ikhefu, ukulengiswa noma ukufakwa kokuhlala. . Njengoba kuboniswe emfanekisweni ongezansi:
Ngaphezu ukusetshenziswa ikholomu SF6 umthwalo switch uketshezi ambalwa impela. Ukushintsha komthwalo we-SF6 okucisha i-arc kwe-SF6, ukufakwa kwe-SF6, uhlobo lwebhokisi elivamile lesigaba ezintathu, i-transformer yamanje ingakhelwa ngaphakathi, ikhebula noma i-terminal outlet, ingaphandle ingahlonyiswa ngedivayisi yokuzikhethela, ukulenga noma ukufakwa kohlobo lokuhlala.
4, I-Column circuit breaker
I-Circuit breaker iyithuluzi elishintshayo elingavala, lithwale futhi livule igagasi ngaphansi kwezimo ezijwayelekile zesekhethi futhi lingavala, liphathe futhi livule i-current ngaphansi kwezimo zesekhethi ezingavamile phakathi nesikhathi esithile. I-Circuit breaker ingasetshenziselwa ukusabalalisa amandla, ukuqala okungajwayelekile ama-asynchronous motors, izintambo zikagesi namamotho, njll. ukusebenzisa isivikelo, lapho kwenzeka ukulayisha ngokweqile noma i-short-circuit kanye ne-low-voltage namanye amaphutha anganqamula isekethe, umsebenzi ulingana namaswishi ohlobo lwe-fuse kanye nenhlanganisela yokudluliswa okungaphezulu nangaphansi kwe-thermal nokunye.
I-column circuit breaker i-circuit breaker efakwe futhi isebenze esigxotsheni, evame ukubizwa ngokuthi "watchdog", iwuhlobo lwemishini yokushintsha enganqamula noma ixhume umugqa ngaphansi kwezimo ezijwayelekile, futhi ishintshe ulayini onephutha ngesandla noma ngokuzenzakalelayo ngokusebenzisa ukusebenza noma indima yokuvikela i-relay lapho ulayini unomjikelezo omfushane futhi unephutha. Umehluko omkhulu phakathi kwama-circuit breakers kanye nokushintshwa komthwalo ukuthi ama-circuit breakers angasetshenziswa ukuvula i-short-circuit current. I-column circuit breaker isetshenziselwa kakhulu ukusakaza kwesigaba sesikhawu somugqa wokusabalalisa, ukulawula, ukuvikela, okungavula nokuvala wamanje wesekethe emfushane.
Isihlukanisi sekholomu ngokwendawo yokucisha i-arc esetshenzisiwe, ingahlukaniswa ngama-breaker circuit kawoyela (ukuqedwa okuyisisekelo), ama-circuit breaker sulfur hexafluoride (SF6), ama-vacuum circuit breaker.
Iphrojekthi yenethiwekhi yokuqala yokusabalalisa esebenzisa ama-circuit breaker sulfur hexafluoride (SF6) kanye nama-vacuum circuit breaker kungaphezulu, futhi manje imigqa yokusabalalisa ku-circuit breaker isetshenziswa kakhulu kuma-air-voltage vacuum angaphandle ahlakaniphile ama-vacuum breaker, ama-vacuum circuit breaker ahlakaniphile athola iphutha. umsebenzi, ukuvikela kanye nokulawula imisebenzi kanye nemisebenzi yokuxhumana. Ivamise ukufakwa endaweni yokuhlukanisa ulayini ongaphezulu we-10kV, ikwazi ukubona ukuhlungwa kabusha okuzenzakalelayo, ukubekwa phansi kwesigaba esisodwa kanye nokuhlukaniswa okuzenzakalelayo kwamaphutha esekethe esifushane, ingumkhiqizo okahle wokwakhiwa kabusha kolayini wokusabalalisa kanye nokwakhiwa kwe-automation yenethiwekhi.
I-Intelligent vacuum circuit breaker ingasebenza mathupha, ngogesi, ngesilawuli kude kanye nomsingathi werimothi. I-circuit breaker iqukethe izingxenye ezintathu: umzimba, indlela yokusebenza nesilawuli (i-isolation switch ingakhelwa ngaphakathi). I-circuit breaker ingahlonywa i-CT (i-protection current transformer), i-ZCT (i-zero sequence current transformer), u (i-voltage transformer) njengomtshina wesilawuli ngokwesidingo.
I-vacuum circuit breaker ngokuya ngento yokufakwa ngokuphelele kwe-vacuum ine-SF6 insulated vacuum circuit breaker kanye ne-air insulated vacuum circuit breaker. I-SF6 insulated vacuum circuit breaker isebenzisa isiphazamisi se-vacuum, i-SF6 insulation, uhlobo lwebhokisi elivamile lezigaba ezintathu, isebenzisa indlela yokusebenza yasentwasahlobo, i-transformer yamanje ingakhelwa ngaphakathi, ikhebula noma itheminali ngaphandle komugqa, idivayisi yangaphandle yokuzihlukanisa, ukulenga noma ukuhlala. thayipha ukufakwa. I-air-insulated vacuum circuit breaker isebenzisa ukucisha i-arc ye-vacuum, ukufakwa komoya, uhlobo lwekholomu eqinile enezigaba ezintathu, yamukela indlela yokusebenza kazibuthe entwasahlobo noma unomphela, i-transformer yamanje ingakhelwa ngaphakathi, ikhebula noma indawo yokukhipha umoya, idivayisi yangaphandle yokuzihlukanisa ozikhethela yona. , ukufakwa kohlobo lokuhlala.
5. I-Drop-in fuse
I-fuse ewayo evame ukubizwa ngokuthi i-Link, ingumugqa wegatsha wokusabalalisa ongu-10kV kanye nesiguquli sokusabalalisa esivame ukusebenzisa iswishi yokuvikela isekethe emfushane. Inomnotho, kulula ukuyisebenzisa, ukuzivumelanisa nemvelo yangaphandle nezinye izici, isetshenziswa kakhulu emigqeni yokusabalalisa engu-10kV kanye nama-transformer okusabalalisa njengohlangothi oluyinhloko lokuvikela kanye nokusakazwa kwemishini, ukusika ukusebenza.
I-Drop fuse efakwe egatsheni lomugqa wokusabalalisa ongu-10kV, inganciphisa ububanzi bokunqamuka kukagesi, ngoba inephuzu lokunqamula elinogesi ophezulu elisobala, elinomsebenzi weswishi yokuhlukanisa, esigabeni sokulungisa ulayini nezinto zokusebenza ezizokwakhiwa. indawo yokusebenza ephephile, yandise ukuphepha kwabasebenzi bokunakekela. Ifakwe ku-transformer yokusabalalisa, ingasetshenziswa njengesivikelo esikhulu se-transformer yokusabalalisa, ngakho-ke iye yathandwa emigqeni yokusabalalisa engu-10kV kanye nama-transformer okusabalalisa.
I-fuse ingafakwa ohlangothini lwamandla we-switch yokulayisha noma ohlangothini olunamandla lokushintsha komthwalo. Uma kungadingeki ukuwisa njalo i-fuse, kuyafiseleka ukwamukela ilungiselelo langaphambili ukuze kusetshenziswe umsebenzi weswishi yokulayisha njengomshini wokunqamula, futhi uyisebenzisele ukuhlukanisa i-voltage eyengezwe ku-fuse ekhawula yamanje.
Ukwakheka kwe-fuse ewayo ikakhulukazi kuqukethe isivikelo, isihlalo esiphansi sokusekela, ukuthintana okuphansi okunyakazayo, ukuthintana okuphansi okumile, ipuleti elikhuphukayo, ukuthintana okuphezulu okumile, i-duckbill, ukuthintana okuphezulu okunyakazayo, ishubhu ye-fuse nokunye.
6. Umehluko ekushintsheni kwekholomu
Umehluko omkhulu umi kanje:
I-switch yokunqamula ayinayo idivayisi yokucisha i-arc, ngakho-ke ifaneleka kuphela ukusika i-current ngaphandle komthwalo, futhi ayikwazi ukunqamula umthamo wamanje kanye ne-short-circuit current, ngakho-ke into esetshenziswayo yokunqamula ingasebenza kuphela ngokuphepha ngaphansi kwesimo. yokunqanyulwa kokuphepha kwesifunda, futhi akuvunyelwe ukusebenza ngomthwalo, ukuze ungabangeli ingozi yokuphepha.
Ukushintsha komthwalo ngenxa yedivayisi yokucima i-arc, enekhono elithile lokucisha i-arc, kodwa elingenamandla njengekhono lokucima i-circuit breaker arc, angakwazi ukuhlukanisa ukusebenza okujwayelekile kwamanje, isifunda esifushane, angakwazi ukumelana buthule kuphela i-current-circuit current, uma lesi sikhathi ukuhamba ngesandla noma okuqhutshwa ngogesi kungase kuqhume, ngakho-ke iswishi yokulayisha ngokuvamile isetshenziswa ne-fuse ekhawula yamanje (i-load switch + fuse akuyona ukucushwa okujwayelekile, kodwa futhi ayikwazi ukusetshenziswa nefuse) Uma kwenzeka ukulayisha ngokweqile. noma i-short-circuit isifunda siphulwa yi-fuse. Ukuze kongiwe izindleko, i-load switch + fuse ingasetshenziswa esikhundleni se-circuit breaker.
I-circuit breaker inekhono eliqinile lokucisha i-arc, futhi ingakwazi ukuthepha amandla asebenzayo ajwayelekile kanye nephutha lamanje. Umsebenzi wokuvikela we-breaker circuit wenziwa idivayisi yokuvikela i-relay. Ama-high-voltage circuit breaker awanawo amadivayisi ama-low-voltage circuit breaker afana nokukhululwa kwe-thermal, ukukhululwa kazibuthe, ukukhishwa okungaphansi kwe-voltage, njll. Ukuthi ingabe kukhona iphutha emugqeni kwahlulelwa idivayisi yokuvikela i-relay, kanye nesekhethi. i-breaker yenza kuphela ukuphulwa ngokuvumelana nomyalelo wokuvikela ukudluliselwa. Amaswishi okulayisha kanye nokunqamula imimese nawo akudingekile ukuze unikeze imiyalo kuwo lapho ulayini unephutha ngoba awakwazi ukuphula iphutha lamanje. I-circuit breaker iyiswishi enekhono eliphezulu lokucisha i-arc futhi kufanele isetshenziswe ngokuhambisana nedivayisi yokuvikela i-relay.
By Singaphetha kanje:
Ukunqamula switch - kungaba kuphela ukuvula futhi uxhume uhlelo akukho-umthwalo wamanje, futhi njengoba main uhlelo izintambo ezisobala iphuzu Ukunqamula, enqubeni yesondlo njengoba uhlelo sobala Unqamula iphuzu. Amamodeli asetshenziswa kakhulu: GW9, HGW9, GW4, GW5, njll.
Iswishi yokulayisha - ingavula futhi ivale uhlelo lwamanje lomthwalo ovamile, kodwa ayikwazi ukuphula iphutha lamanje lesistimu. Amamodeli asetshenziswa kakhulu: FZW32
I-Circuit breaker--Ingakwazi ukuvula nokuvala umthamo ojwayelekile wesistimu, kodwa futhi ingavula futhi ivale iphutha kanye ne-short-circuit current yesistimu. Amamodeli asetshenziswa kakhulu: ZW32, ZW20, ZW7, ZW8, LW3, njll.
