Umahluko phakathi kwee-breakers zesiphaluka kunye nokuqhawula ukudibanisa

Izaphuli zesekethekunye ne-disconnectors zinokuphazamisa zombini iisekethe. Ngokuxhomekeke kwinani lezibonda, banokusebenza kwisigaba esisodwa okanye kwiisekethe ezithathu. Umsebenzi we-circuit breaker kukukhusela isiphaluka kunye nezixhobo. Idla ngokuba nophawu lokukhubeka oluzenzekelayo kwaye inokuqhutywa ngomthwalo. Ngelixa i-disconnecter isetyenziselwa kuphela ukuphazamisa isiphaluka. Ngokuqhelekileyo ayinqumli ngokuzenzekelayo isiphaluka kwaye ayikwazi ukusebenza ngomthwalo. Eli nqaku, ngokudibanisa imisebenzi kunye nokuhlelwa kweesekethe zesekethe kunye ne-disconnectors, yazisa ngokucacileyo umahluko phakathi kwabo.

I-low-voltage circuit breaker

1. Umsebenzi we-breaker circuit

Ukukhuselwa kokugqithiswa: Emva kokuba i-current in circuit idlula i-current rated for the time time, i-breaker circuit iya kunqumla ngokuzenzekelayo isiphaluka. Ngokomzekelo, ukuba i-socket idityaniswe nezixhobo zombane eziphezulu kakhulu kwaye i-current igcwele kakhulu, i-breaker circuit iya kuhamba ukukhusela isiphaluka ukuba sonakaliswe ngenxa yokushisa kunye nokuphepha ukudala umlilo.

2. Ukukhuselwa kwesiphaluka esifutshane: Ukuba isiphaluka esifutshane senzeke kwisiphaluka, oku kuthetha ukuba i-current ngokukhawuleza iba phezulu kakhulu, i-breaker circuit inokunqumla ngokukhawuleza isiphaluka. Oku kuthintela umsinga omkhulu owenziwe yisekethe emfutshane ekubeni ubangele umonakalo oyingozi kwiingcingo, izixhobo zombane, njl.

3. Ukukhuselwa kwe-Undervoltage (ekhoyo kwezinye ii-breakers zesekethe): Xa i-voltage yegridi yehla ngaphantsi kwe-voltage eqhelekileyo yokusebenza ngomlinganiselo othile, i-breaker circuit inokunqumla ngokuzenzekelayo isekethe ukukhusela izixhobo zombane ukuba zingonakaliswe yi-undervoltage. Emva kokuba i-voltage yegridi ibuyele kwinto eqhelekileyo, ezinye izaphuli zesekethe zifuna ukusetwa ngokutsha ngesandla ngaphambi kokuba ziphinde zenziwe amandla, ngelixa ezinye zinokuvala ngokuzenzekelayo.

I-low-voltage circuit breaker

II. Imisebenzi ye-circuit breaker

Ukunikezelwa kwamandla odwa: Umsebenzi oyintloko wokutshintsha okukodwa kukuhlukanisa ngokuthembekileyo izixhobo zombane ezifuna ukulungiswa kumbane ophilayo, ukuqinisekisa ukhuseleko lwabasebenzi bokulondoloza. Ngokomzekelo, xa uqhuba ukugcinwa kwezixhobo zombane zomgca othile kwi-substation, ngokusebenza ukutshintshwa kwe-isolation, indawo yokuphumla ecacileyo inokuqulunqwa phakathi kwezixhobo kunye nokunikezelwa kwamandla, ukuthintela ukunikezelwa kwamandla ngokukhawuleza ukuba kubangele umonakalo kubasebenzi bokulondoloza.

2. Ukutshintsha ukusebenza: Kwi-double-busbar okanye enye inkqubo yocingo, umtshintshi wokuhlukanisa usetyenziselwa ukutshintsha indlela yokudibanisa yesiphaluka, eyenza ukuba izixhobo okanye imigca itshintshe ukusuka kwelinye isethi yeebhasi ukuya kwelinye, ngaloo ndlela iqinisekisa ukulungiswa okuguquguqukayo kwendlela yokusebenza kwenkqubo yamandla. Nangona kunjalo, ngexesha lomsebenzi wokutshintsha, ukutshintshwa kwe-isolation ngokuqhelekileyo kusetyenziswe kunye nezixhobo ezifana nabaphuli beesekethe.

3. Ukuqhuba iisekethe ezincinci zangoku: Umtshini wokuzihlukanisa unokuvula kwaye uvale i-voltage engasebenziyo kunye nababambeli bombane, iibhasi, i-capacitive current yezixhobo eziqhagamshelwe ngokuthe ngqo kwi-busbar, kunye ne-grounding knife switch kwindawo engathathi hlangothi ye-transformer, njl., zonke iisekethe ezincinci zangoku.

Umqhekezi wesekethe ophantsi kombane

III. Izaphuli zesekethe zihlelwe ngendlela yokukhwela

I-Thermal circuit breaker: Isebenzisa umgaqo wokuba i-bimetallic strip igobe xa ishushu. Xa i-current ilayishiwe, i-bimetallic strip igoba ngenxa yobushushu obuveliswa ngumbane, obangela indlela yokukhupha ukunqumla isiphaluka. Ixesha lesenzo salo mqhekezi wesekethe lihambelana nobukhulu bomthwalo ogqithisiweyo wangoku; Okukhona ukulayisha ngaphezulu kwangoku, kokukhona lifutshane ixesha lentshukumo.

2. I-Electromagnetic Circuit Breaker: Ngokusekwe kumgaqo wokungeniswa kwe-electromagnetic. Xa isiphaluka esifutshane sisenzeka kwisekethe, umsinga omkhulu ngequbuliso uvelisa amandla ombane anamandla, abangela ukuba indlela yokukhubeka isebenze kwaye inqumle ngokukhawuleza isekethe. Inobuntununtunu kakhulu kwimisinga emfutshane yesekethe.

3. I-Electronic Circuit Breaker: Ibona ubukhulu bangoku kunye notshintsho ngokusebenzisa amacandelo e-elektroniki. Iyakwazi ukuphumeza ngokuchanekileyo imisebenzi yokukhusela enjengomthwalo ogqithisiweyo kunye nesiphaluka esifutshane, kwaye ezinye ii-breaker circuit ze-electronic nazo zinemisebenzi yolawulo olukude kunye nokunxibelelana, okwenza kube luhlobo oluphambili lwe-breaker circuit.

Iswitshi yokuqhawula i-low-voltage

IV. Ukwahlulahlula ukutshintshela kwindawo yofakelo

Iswitshi yokuqhawula ngaphakathi: Ihlala ifakwe kwigumbi lokuhambisa okanye kwezinye iindawo ngaphakathi kwezakhiwo, isetyenziselwa ukwahlula imisebenzi yezixhobo zombane zangaphakathi. Ubume bayo buncinci kwaye umthamo wayo uncinci ngenxa yokuba iimeko zendalo zangaphakathi zizinzileyo.

2. Iiswitshi zokuqhawula ngaphandle: Zifakwe kwizikhululo zangaphandle, iintambo zothumelo, kunye nezinye iindawo, kufuneka zikwazi ukumelana neemeko ezahlukeneyo zemozulu ezinzima. Indlela ezibunjwe ngayo yomelele yaye ineempawu ezibalaseleyo zokungangeni kwamanzi, ukumelana nomoya, kunye nezinto ezikwaziyo ukumelana nomhlwa.

Iswitshi yokuqhawula i-high-voltage

V. Ulwahlulo lokuqhawula uqhagamshelwano olusekelwe kwindlela yokusebenza

Ukuqhawula uqhagamshelo ngesandla: Ifuna ukusebenza ngesandla ngesiphatho ukwenza ukuvula nokuvala. Umsebenzi ulula kwaye uthe ngqo, kunye neendleko eziphantsi. Ngokuqhelekileyo isetyenziswa kwiimeko ezinamaqondo ombane aphantsi kunye nokusebenza kancinci.

2. Ukutshintsha koMbane woKwahlulahlula: Amanyathelo okuvula nokuvala aphunyezwa ngomatshini wokusebenza kombane. Olu hlobo lokutshintsha okukodwa luvumela ulawulo olukude, luququzelele ulawulo oluphakathi kunye nokusebenza okuzenzekelayo kwizitishi ezinkulu kunye nezinye izibonelelo ezinjalo. Nangona kunjalo, ineendleko eziphezulu kunye nesakhiwo esinzima ngakumbi.