Umbane wesekethe ophezulu (okanye iswitshi ephezulu) sisixhobo esiphambili solawulo lwesitishi, kunye neempawu zokucima i-arc, xa ukusebenza kwesiqhelo kwenkqubo, kunokunqunyulwa kwaye kugqitywe kulayini nakwizixhobo zombane ezahlukeneyo ngaphandle komthwalo kunye nomthwalo yangoku; Xa isiphoso senzeka kwinkqubo, yona kunye nokukhuselwa kokudlulisa, inokukhawulezisa ukunqumamisa isiphoso sangoku, ukuthintela ukwandisa umda wengozi.
Isitshixo sokuqhawula asinaso isixhobo sokucima i-arc. Nangona imigaqo ichaza ukuba inokusetyenzwa kwimeko apho umthwalo wangoku ungaphantsi kwe-5A, awusebenzi ngokubanzi ngomthwalo, nangona kunjalo, iswitshi yokuqhawula inesakhiwo esilula, kwaye imeko yayo yokusebenza inokubonwa ngokujonga nje imbonakalo. Kukho indawo ebonakalayo yokuqhawula ngexesha lolondolozo.
Ikhefu lesekethe elisetyenziswayo kubhekiswa kulo njenge "switch", ukunqamla iswitshi ekusebenziseni kubhekiswa kuko njenge "brake knife", ezi zimbini zihlala zisetyenziswa ngokudibeneyo Umahluko phakathi kwesikhethi sevolthi ephezulu kunye nokucinywa kokucinywa zezi zilandelayo:
1) Isitshixo sokulayisha umthwalo omkhulu sinokwaphulwa kunye nomthwalo, kunye nomsebenzi wokucima i-arc, kodwa amandla ayo okwahlula amancinci kakhulu kwaye ancitshisiwe.
2) Isitshixo sokucima umbane esiphakamileyo asihlali sikophula umthwalo, akukho sakhiwo sokugquma se-arc, kukho isitshixo sokucima umbane esiphakamileyo esinokwaphula umthwalo, kodwa ulwakhiwo lwahlukile kukutshintsha komthwalo, ngokulula.
I-3) Iswitshi yokulayisha umthwalo ombane kunye nokucima umbane ophakamileyo kunokwenza indawo ebonakalayo. Uninzi lweesekethe ezihamba ngamandla ombane azinawo umsebenzi wodwa, kwaye ikhefu elinamandla lesiphaluka elinamandla aphezulu linomsebenzi wokuzahlula.
I-4) Isitshixo sokucima umbane esiphakamileyo asinawo umsebenzi wokukhusela, ukukhuselwa kweswitshi yokulayisha amandla ombane ngokubanzi kukukhusela i-fuse, kuphela ikhefu elikhawulezileyo nangaphezulu ngoku.
I-5) Amandla okophula amandla ombane wesekethe aphezulu anokuba phezulu kakhulu kwinkqubo yokuvelisa.Ngokuthembela kwisiguquli esikhoyo ngezixhobo ezisesekondari ukukhusela.
Ucalulo lweendlela zokusebenza zotshintsho
1. Ukuhlelwa kwendlela yokusebenza yokutshintsha
Ngoku sihlangana neswitshi ngokubanzi sahlulwe saya kwioyile (iimodeli ezindala, ngoku phantse azibonwa), ioyile encinci (ezinye izikhululo zomsebenzisi), i-SF6, i-vacuum, i-GIS (izixhobo zombane ezidityanisiweyo) kunye nezinye iintlobo. Phakathi kotshintsho. Okwethu kwesibini, ukunxibelelana ngokusondeleyo yindlela yokusebenza yotshintsho.
Uhlobo lwendlela olunokwahlulwa lube yindlela yokusebenza kwe-electromagnetic (noko indala, ngokubanzi kwioyile okanye isekethe yesekethe encinci yeoyile ixhotyiswe ngale nto); Indlela yokusebenza yasentwasahlobo (okwangoku yeyona ixhaphakileyo, i-SF6, i-vacuum, i-GIS ngokubanzi ixhotyiswe ngale ndlela); Kutshanje i-ABB yazise uhlobo olutsha lomqhubi wemagnethi esisigxina (njenge-VM1 vacuum circuit breaker).
2. Isixhobo esisebenza ngombane
Inkqubo yokusebenza kwe-electromagnetic ithembele ngokupheleleyo kumtsalane wombane oveliswe kukuvalwa kwangoku kuhamba ngekhoyili yokuvala ukuvala nokucofa intwasahlobo yohambo. Uhambo ikakhulu luxhomekeke kwintwasahlobo yohambo ukunika amandla.
Ke ngoko, olu hlobo lwendlela yokusebenza yohambo lwangoku lincinci, kodwa okwangoku kukuvala kukhulu kakhulu, kwangoko kunokufikelela ngaphezulu kwe-100 amperes.
Yiyo loo nto inkqubo ye-dc yesitishi kufuneka ivule kwaye ivale ibhasi ukulawula ibhasi Umama wokuvala ubonelela ngombane wokuvala, kwaye umama olawulayo unikezela amandla kwilogo yokulawula.
Ibhasi yokuvala ixhonywe ngokuthe ngqo kwipakethi yebhetri, ivolthi yokuvala ngumbane wepakethi yebhetri (ngokubanzi malunga ne-240V), ukusetyenziswa kwesiphumo sokukhupha ibhetri ukubonelela ngoku yangoku xa kuvalwa, kwaye umbane ubukhali kakhulu xa uvala. Kwaye ulawulo lwebhasi luhamba nge-silicon chain-down kunye nomama odityaniswe kunye (ngokubanzi ulawulwa kwi-220V), ukuvala akuyi kuchaphazela uzinzo lwevolthi yebhasi yolawulo. Ukuvalwa kwesekethe akuhambelani ngokuthe ngqo kwikhoyili yokuvala, kodwa kusetyenziswa isixhobo sokuvala.
Ukuvala i-coil coil luhlobo lwamandla ombane, ixabiso lokumelana likhulu (ezimbalwa i-K) .Ukuba ukhuseleko lulungelelaniswe nale sekethe, ingqalelo kufuneka ihlawulwe ukuvala ukugcina ukuqala kokuqala.Kodwa oku akuyongxaki, uhambo lugcina i-TBJ Olu hlobo loomatshini lunexesha elide lokuvala (120ms ~ 200ms) kunye nexesha lokuvula elifutshane (60 ~ 80ms).
3. Inkqubo yokusebenza kwentwasahlobo
Olu hlobo loomatshini lolona hlobo lusetyenziswayo ngoku, ukuvalwa nokuvulwa kwayo kuxhomekeke emthonjeni ukubonelela ngamandla, i-coil yokuvala ukutsiba inika amandla kuphela ukukhupha isikhonkwane sokumisa intwasahlobo, ke ngoku ukutsiba kokungoku akubikho kukhulu. Ukugcinwa kwamandla entwasahlobo kucinezelwe yimoto yokugcina amandla.
Umqhubi wamandla okugcina amandla entwasahlobo
Kwindlela yokusebenza ye-elastic, ibhasi yokuvala ikakhulu ibonelela ngamandla kumatshini wokugcina amandla, kwaye okwangoku akukho mkhulu, ke akukho mahluko mkhulu phakathi kwebhasi yokuvala kunye nebhasi elawulayo. Ukukhuselwa ngokulungelelaniswa kwayo, ngokubanzi akukho Kuya kufuneka unike ingqalelo indawo.
4. Umqhubi wemagnethi esisigxina
Isisebenzisi semagnethi esisigxina sisixhobo esisetyenziswa ngu-ABB kwimarike yasekhaya, esetyenziswe okokuqala kwi-VM1 10kV vacuum circuit breaker.
Umgaqo-nkqubo wayo uphantse wafana nohlobo lwe-electromagnetic, ishafti yokuqhuba yenziwe ngezinto zemagnethi esisigxina, umazibuthe osisigxina ojikeleze iikhoyili ye-electromagnetic.
Phantsi kweemeko eziqhelekileyo, i-coil ye-electromagnetic ayihlawulwanga, xa iswitshi ivula okanye ivala, ngokutshintsha ubukho bekhoyili usebenzisa umtsalane wemagnethi okanye umgaqo wokugxotha, uqhuba uvule okanye uvale.
Nangona le yangoku ingekho ncinci, iswitshi "sigcinwa" sisixhobo esikhulu somthamo, esikhutshelwa ukubonelela ngombane omkhulu ngexesha lokusebenza.
Izinto eziluncedo ngalo matshini zikwinqanaba elincinci, ukuhambisa okungaphantsi kwamalungu oomatshini, ke ukuthembeka kubhetele kunendlela yokusebenza kwe-elastic.
Ngokudibana nesixhobo sethu sokukhusela, iluphu yethu yokukhubeka iqhuba uxinzelelo oluphezulu lokudlulisa imeko efunekayo kuthi ukuba siyinike ukubetha kwentshukumo.
Ke ngoko, utshintsho, ukugcina ilogo ngokuqinisekileyo akunakuqalwa, ukukhuselwa kokutsiba akuyi kuqalwa (indlela ngokwayo yokutsiba).
Nangona kunjalo, kufanele kuqatshelwe ukuba ngenxa yombane ophezulu osebenzayo we-solid-state relay, uyilo oluqhelekileyo lwe-TW olubi luqhagamshelwe kwisekethe yokuvala, engayi kubangela ukuba i-solid-state relay isebenze, kodwa inokubangela isikhundla Ukubuyisela ukungaphumeleli ukuqala ngenxa yombane omkhulu kakhulu.
1. Isilinda yokugquma ephezulu (negumbi lokucima iarc)
2. Hlisa isilinda yokugquma
3. Isibambo sokuvula ngesandla
4.Chassis (eyakhelwe-ngaphakathi indlela esebenza ngemagnethi esisigxina)
Umbane sombane
6. Phantsi kocingo
7. Isiguquli sangoku
8. Kumgca
Le meko ekuhlangatyezwane nayo ebaleni, uhlalutyo oluthile kunye nenkqubo yokulungisa inokubonwa kwimeko yokulungisa inxenye yeli phepha, kukho inkcazo eneenkcukacha.
Kukwakho neemveliso zendlela yokusebenza yemagnethi esisigxina eTshayina, kodwa umgangatho awukhange ube semgangathweni ngaphambili. Kule minyaka idlulileyo, umgangatho uye waziswa ngokuthe ngcembe kwintengiso.Ukujonga iindleko, indlela yemagnethi esisigxina yasekhaya ngokubanzi ayinayo amandla, kwaye okwangoku kubonelelwa ngqo ngebhasi yokuvala.
Indlela yethu yokusebenza iqhutywa yi-on-off lwekontraka (uhlobo olukhethiweyo ngokubanzi lwangoku), bamba kunye anti-tsiba ngokubanzi ingaqalwa.
Uhlobo lwe-5.FS "tshintsha" kunye nabanye
Into esele siyikhankanyile ngasentla zizaphuli zesekethe (ezaziwa ngokutshintsha), kodwa singadibana nento abasebenzisi abayibiza ngokuba kukutshintsha kweFS kulwakhiwo lwezityalo.
Ngenxa yokuba utshintsho lubiza kakhulu, isekethe ye-FS isetyenziselwa ukugcina iindleko.
Olu hlobo lweesekethe luqhelekile kwinkqubo yesityalo yamandla e-6kV.Ukhuselo ngokudibeneyo nesekethe enjalo kuye kufuneke ukuthintele ukukhubeka okanye ukuvumela ukususwa okukhawulezayo kwangoku ngokulibaziseka xa isiphoso sangoku sikhulu kunesokuvunyelwa sangoku sokutshintsha komthwalo. Abanye abasebenzisi bezityalo zamandla abanakunqwenela ukukhusela i-loop yokubamba.
Ngenxa yomgangatho ombi weswitshi, unxibelelwano oluncedisayo alunakubakho, kwaye nje ukuba ukugcinwa kwesekethe kuqalile, kufuneka kuthembele kunxibelelwano lokuncedisa ukuba luvule ngaphambi kokuba lubuye, kungenjalo isitshixo sokuvala sokutsiba siya kongezwa ekutsiba ukuvala ikhoyili ide icime iikhoyili.
Ikhoyili yokuvala yokutsiba yenzelwe ukuba yomelele okwexeshana. Ukuba okwangoku kongezwe ixesha elide, kulula ukutshiswa kwaye ngokuqinisekileyo sifuna ukubamba iluphu, kungenjalo kulula kakhulu ukutshisa abafowunelwa abakhuselayo.
Ewe, ukuba umsebenzisi wentsimi unyanzelisa, iluphu yokubamba nayo ingasuswa Ngokubanzi, indlela elula kukusika umgca kwibhodi yesekethe egcina unxibelelwano oluqhelekileyo oluvulekileyo lwelayini kunye nolawulo olululo lwabasetyhini.
Kwisiza sokulungisa ingxaki kufuneka sinike ingqalelo, ukuba kulayite kwaye kucinyiwe ukusebenza, isalathi sendawo sicinyiwe (ngaphandle kwentwasahlobo ayigcinwanga amandla, kwimeko apho iphaneli ibonisa ukuba intwasahlobo ayigcinwanga ialam alarm cinywa kwangoko ukuthintela ukutshisa iikhoyili zokutshintsha Lo ngumgaqo osisiseko wokugcina engqondweni kuloo ndawo.
Ixesha Post: Aug-04-2021