Umgaqo wokusebenza wokuhlukanisa umtshintshi - umahluko phakathi kokutshintsha okukodwa kunye ne-breaker circuit

Ukwazisa iukwahlula iswitshi: Ukutshintsha kwe-Isolation yenye yezona zixhobo zombane ezisetyenziswa kakhulu kwi-high-voltage switching appliances.Njengoko igama libonisa, kufuneka idlale indima yodwa kwisekethe.Umgaqo wayo wokusebenza kunye nesakhiwo silula, kodwa ngenxa yemfuno enkulu kunye neemfuneko eziphezulu zokuzinza komsebenzi, kunempembelelo enkulu kuyilo, ukudala kunye nokusebenza ngokukhuselekileyo kwezitishi kunye nezityalo zamandla.Inqaku eliphambili lesango lesixhobo kukuba alinawo amandla okucima i-arc, kwaye inokwahlulwa kuphela kwaye ivalwe phantsi kwesiseko sokungabikho komthwalo wangoku.iswitsha yokuzahlula (eyaziwa ngokuba yi "switch yemela"), ibhekisa kwi-high-voltage isolation switch, oko kukuthi, iswitsha yokwahlula enomlinganiselo wangoku ongaphezulu kwe-1kV ibizwa ngokuba sisitshixo sokuzihlukanisa, kwaye yenye yezona zinto zisetyenziswa kakhulu. izixhobo zombane kwizixhobo zokutshintsha kwe-high-voltage.Umgaqo wayo wokusebenza kunye nesakhiwo silula, kodwa ngenxa yemfuno enkulu kunye neemfuneko eziphezulu zokuzinza komsebenzi, kunempembelelo enkulu ekuyilweni, ekudaleni nasekusebenzeni ngokukhuselekileyo kwezitishi kunye nezityalo zamandla.Into ephambili yokutshintshwa kwe-isolation kukuba ayinakho i-arc yokucima amandla, kwaye inokwahlula kuphela kwaye ivale isiphaluka phantsi kwesiseko sokungabikho komthwalo wangoku.Iiswitshi zokuzihlukanisa zisetyenziselwa ukutshintsha ukudibanisa kweesekethe okanye ukwahlula iindlela okanye izixhobo ezivela kwimithombo yamandla.Ayinasiphazamiso kwaye inokuqhawulwa kuphela kwindlela nezinye izixhobo ngaphambi kokuba isebenze.Ngokuqhelekileyo iqulethe i-interlock yokukhusela i-misoperation yokutshintsha phantsi komthwalo, kwaye ngamanye amaxesha kufuneka ithengiswe ukunqanda ukuvula iswitshi phantsi kwesenzo semagnethi ephosakeleyo.Umgaqo wokusebenza wokutshintshwa kwe-isolation: Ngokuqhelekileyo, isethi yokutshintshwa kwe-isolation ifakwe kumacala angaphambili nangasemva kwe-breaker circuit, injongo kukuhlukanisa i-breaker circuit kunikezelo lwamandla, okubangela ukuba kubekho indawo ecacileyo yokuqhawula;ekubeni ukhetho lwangaphambili lwe-circuit breaker lubhekiselele kwi-oil circuit breaker, i-oil circuit breaker kufuneka igcinwe rhoqo.Kukho indawo ecacileyo yokuqhawula, ehambelana nokugcinwa;ngokubanzi, ikhabhinethi yokuphuma inikwe amandla kwi-busbar ephezulu ngokwekhabhinethi yokutshintsha, kwaye i-breaker circuit kufuneka ibe yodwa kumthombo wamandla, kodwa ngamanye amaxesha kunokubakho iifowuni emva kwe-breaker circuit, njengezinye iilophu, i-capacitors, njl. izixhobo, ngoko ke iseti yokukhetha ukwahlula iyafuneka emva kwe-breaker circuit.Isitshixo sokutshintshwa kwe-isolation kukukhusela ngokuthembekileyo iindawo ezimele zinikwe amandla kunye neendawo eziphuculweyo zezixhobo zokusasaza amandla ombane ophezulu ukuqinisekisa ukhuseleko lomsebenzi wokulondoloza.Abafowunelwa bokutshintshwa kokwahlula bonke babonakaliswe emoyeni, kwaye indawo yokuqhawula iyabonakala.Iukwahlula iswitshiayinasixhobo sokucima i-arc kwaye ayinakusetyenziselwa ukuphazamisa umbane wangoku okanye i-short-circuit current.Ngaphandle koko, phantsi kwesenzo sombane ophezulu, indawo yokuqhawula iya kuvelisa ukuhlukaniswa kombane okucacileyo, okunzima ukucima ngokuzimeleyo, kwaye kunokubangela ukuba i-arcing (isihlobo okanye i-interphase short circuit) kwaye itshise izixhobo, ibeka engozini ukhuseleko lobomi.Le yingozi enkulu ebizwa ngokuba yi "load-tsala disconnector".I-Isolators ingasetyenziselwa ukutshintsha imisebenzi kwezinye iisekethe ukutshintsha indlela esebenza ngayo inkqubo.Umahluko phakathi kokutshintsha okukodwa kunye ne-circuit breaker: Izaphuli zesekethe Izaphuli zesekethe zombane ophezulu kunye nezaphuli zesekethe zombane ophantsi sisixhobo sokukhusela umbane esinodidi kakhulu lwesixhobo sokucima i-arc.Igama elipheleleyo lokutshintsha umoya yi-gas low-voltage circuit breaker, esetyenziswa kakhulu kwiisekethe eziphantsi kwe-voltage.Ngenxa yokuba ukucima i-arc esekelwe kwigesi njengento, ibizwa ngokuba yi-gas low-voltage circuit breaker, okanye i-air switch emfutshane, kunye nokusabalalisa amandla ethu okwakha ekhaya ngokusisiseko kukutshintsha umoya.Isolation switch sisixhobo sombane esitshintshayo siphezulu, sisetyenziswa ikakhulu kwimijikelezo yombane.Esi sisixhobo sokutshintsha ngaphandle kwezixhobo zokucima i-arc.Isitshixo sisetyenziselwa ukuqhawula isiphaluka ngaphandle komthwalo wangoku kunye nokwahlula ukunikezelwa kwamandla ukuqinisekisa ukugcinwa okukhuselekileyo kwezinye izixhobo zombane.Xa icinyiwe, inokuthembeka ngokuhambelana nomthwalo oqhelekileyo wangoku kunye nephutha le-short-circuit current.Ekubeni akukho zixhobo ezikhethekileyo zokucima i-arc, umthamo wangoku kunye nomthamo wesiphaluka omfutshane awukwazi ukunqunyulwa.Ngoko ke, ukutshintshwa kwe-isolation kungenziwa kuphela xa i-breaker circuit inqanyuliwe, kwaye umsebenzi womthwalo unqatshelwe ukuphepha izixhobo ezinzulu kunye neengozi zokhuseleko.Kuphela i-voltage transformers, i- arresters kunye ne-full-load transformers ekhoyo ngoku i-excitation ingagqithisi i-2A, kwaye i-current ayidluli i-5A, sebenzisa ii-switch switches zodwa ukuze zisebenze ngokuthe ngqo imigca yokungabikho komthwalo.I-Circuit breakers kunye ne-diswitch switches kufuneka isetyenziswe kuninzi lwamandla, kunye nabaphangi beesekethe bakhupha umthwalo (iphutha) okwangoku, kunye nokucima ukutshintshela ukudala indawo ecacileyo yokuqhawula.