Imfuneko yofakelo logcino lwesixhobo sokhuselo lokutya

Ngokomgaqo wokusebenza weisixhobo sokukhusela isantyakunye neempawu zamacandelo ngokwawo, i-chip yokukhusela umbane yangaphakathi ye-surge protector iya kuchaphazeleka ngamaxesha amaninzi empembelelo yangoku yombane, i-overvoltage yokusebenza, ubushushu obuphezulu kunye nokufuma okuphezulu phantsi komsebenzi oqhelekileyo, kubangela ukuguga kombane wokukhusela i-chip, ukuwohloka.

Ngokubanzi, ukuvuza kokuqala kohlobo lonyino lwangoku (varistor)izixhobo zokukhusela isantyaingaphantsi kwe-40 ΜA, kunye nokuvuza kokuqala kwangoku kwezinye izikhuseli zokunyuka kwe-mall kungaphantsi kwe-5 ΜA, kodwa ukuvuza kwangoku kuqala ukunyuka ngokuthe ngcembe emva kokukhutshwa kwangoku okulinganiselwe, kunye nokunyuka kwamaxesha okukhupha, ukuvuza kwangoku kunyuka ngokuqhubekayo.Xa ukuvuza kwangoku kunyuka kwixabiso elithile (ngokubanzi, i-valve enye akufanele idlule i-1 Ma), isixhobo sokukhusela ukukhuphuka siqala ukutshisa, kwaye isantya sokuwohloka siyakhawuleza, okulula ukubangela umlilo.Ukongeza, xa i-high-energy surge okanye i-line frequency defect, i-surge protector-short-circuit failure, ukuba akukho khuselo lomgca, ayikwazi ukuqhawula umgca onesiphene ngexesha, kuya kukhokelela kumlilo wokusabalalisa umgca, kwaye umkhuseli wokutya uyaqhuma.

Ukushwankathela, ukuthintela ukuvuza kwangoku kwe-chip yangaphakathi yesixhobo sokukhusela umgca wokunyuka kunye ne-short-circuit current ye-Frequency Power frequency zezona zizathu zokumisela ukukhuselwa kwe-back-up ye-Surge Protector.

Ukukhethwa kokhuseleko logcino lweSkhuthazaPukhuseloDevice

I-1 ukhuseleko lwangaphakathi lwesixhobo sokukhusela sokunyuka

Ukuvuza kwangoku kumkhuseli wokutya ngundoqo kukhuseleko lwangaphakathi lweisixhobo sokukhusela isantya.

Ezinye zeemveliso zemarike ukuvuza kokuqala ngoku kuncinci kakhulu, kodwa kuya kubakho ukwanda okukhulu emva kokusetyenziswa, izinga lokutshintsha liphezulu kakhulu.Ngokwahlukileyo, ukuvuza kwangoku kwezinye izixhobo zokhuselo lotyando kukhulu (5 ~ 30μa) , kodwa ukwanda kokuvuza kwangoku kuncinci kakhulu emva kokuphindaphinda ukukhutshwa kwangoku, okuwumgaqo-nkqubo obaluleke kakhulu.Ukuphakama kwesantya sokutshintsha kokuvuza kwangoku, ukhuseleko olusezantsi, ukuthembeka kunye nobomi benkonzo yesixhobo sokukhusela ukutshixa.Isantya esisezantsi sokutshintsha kokuvuza kwangoku, kokukhona ukhuseleko, ukuthembeka kunye nobomi benkonzo yesixhobo sokhuselo lokunyuka.Xa ukuvuza kwangoku ngaphakathi komkhuseli wokutyanda kunyuka, ubushushu bangaphakathi bomkhuseli wokutya bunyukela kumda, kwaye isixhobo sangaphakathi sikhululwe nge-solder ephantsi yobushushu okanye i-shrapnel yentsimbi, ukuqhawuka okubuthathaka kunikezelo lwamandla ukuqinisekisa ukhuseleko lomkhuseli wotyando.Ngoko ke, asifanele sijonge ukuvuza okuncinci okwangoku, kodwa kufuneka sihlawule ingqalelo ngakumbi kwisantya sokutshintsha kokuvuza kwangoku ngexesha lokusebenza kwesixhobo sokukhusela ukukhupha, ngokuqhelekileyo kufuneka sibe ngaphantsi kwe-200%.

I-2 ukhuseleko lwangaphandle lwesixhobo sokukhusela ukukhuphuka

Xa kukho utyando lwamandla olugqithisiweyo okanye isiphene samandla ombane (Tov), indawo yokukhwela ayinakuqinisekiswa ukuba yeyona ndawo iphezulu yokunyibilika ngenxa yobukho bokuhamba emva kokuphuma okanye uxinzelelo olukhulu olubangelwa kukwandiswa kwegesi, I-Surge Protector imfutshane emhlabeni, kwaye i-current short-circuit current eqhubekayo ibangela ukuba umkhuseli wokutya afudumale kwaye abambe umlilo.Ke ngoko, xa izixhobo ezikhuselayo zokhuseleko zifakwe ngaphambi kokuba isixhobo sokhuselo sombane siqhawule kwaye umgca ukhuselwe xa ukusilela kwesekethe emfutshane yomkhuseli wokutyanda kwenzeka.

(1) ukunyamezela ukunyuka kwamandla

Xa uMkhuseli we-Surgery esebenza, i-surge current ayiqhubeki kuphela kumkhuseli wokutya, kodwa iphinda ihambe kuzo zonke ezinye izixhobo ezikumgca, kubandakanywa nezixhobo zokukhusela i-Surgery Protector.Ukuze uthintele izixhobo ezikhuselayo zokukhusela kwi-misoperation xa ixesha eliqhelekileyo lokunyuka kwangoku liphelile, ukukhuselwa kombane kwezixhobo zokukhusela kufuneka kukhethwe ngokufanelekileyo.Kulo phepha, i-fuse ithathwa njengomzekelo wokuhlalutya (iziphumo zibonisa ukuba i-current rated current ye-circuit breaker ingcono kune-fuse surge ukumelana nomsebenzi) .

(2) ukhuseleko olufutshane lwesekethe yamandla ombane ngaphezulu kwangoku

Xa unyamezelo olufutshane lwesekethe okanye ulwaphulelo olufutshane lwesetyhula yomkhuseli wokutyanda ngokwawo mkhulu kunoko kulindelweyo kwisekethe emfutshane kwisixhobo, umkhuseli wotyando uthathwa njengonomsebenzi wokhuselo, kwaye umkhuseli wangaphandle ogcina ugcino akanakufakwa. ngeli xesha;Kodwa umkhuseli wotyando ngokubanzi akakwazi ukuhlangabezana nenkqubo yangoku yonikezelo elindelekileyo yangoku yesekethe emfutshane.Ke ngoko, xa ukusilela kwesekethe esifutshane somkhuseli wokuqhafaza akakwazi ukwaphula ngokufanelekileyo i-short-circuit current, umkhuseli wokuqhafaza kufuneka usete umkhuseli osemva kwaye akwazi ukwaphula umkhuseli ohambelanayo olindelekileyo wesekethe emfutshane.

(3) ukulungelelaniswa kokukhusela kunye nokutshintsha okuphezulu

Ukukhuselwa kwe-back-up kufuneka kukhethwe ngokukhutshwa kwexesha lokulibaziseka kunye ne-C curve yokukhululwa, kwaye i-curve yayo elinganisiweyo ikhethiweyo ngokuhambelana nobuninzi bomkhuseli we-surge IMAX.Okanye khetha i-fuse, kufuneka ibe yi-fuse enesiphelo esiphezulu sentsebenziswano ekhethiweyo (umlinganiselo wentsebenziswano we-1 / 1.6).Xa ixabiso elilinganisiweyo lomkhuseli we-overcurrent lingaphantsi kwexabiso lokumisela umkhuseli ogqithisayo kwisiphaluka esikhokelayo soMkhuseli we-Surgery, ukukhuselwa kwe-backup yomkhuseli wokunyuka akusebenzi, kwaye ixabiso eliphantsi lokumisela lingashiywa okanye likhethwe.

3 Ukuthelekiswa kweentlobo ezahlukeneyo zezixhobo zokukhusela ezigcinayo

Abavelisi bomkhuseli bangoku bemakethi bakhetha iintlobo ezininzi zezixhobo ezikhuselayo zokhuseleko, ezintsonkothileyo.Iindidi eziqhelekileyo zomkhuseli wokukhusela izixhobo ezikhethekileyo zokukhusela (SCB) , i-fuses edibeneyo (Fu) , i-MCCB, i-micro-break (MCB) kunye nokunye.Indlela yokukhetha uhlobo kunye neeparitha eziphambili zomkhuseli ogciniweyo azichazwanga ngokucacileyo kunye nedatha echanekileyo, kunye nabasebenzi bezobugcisa bemveliso eyahlukeneyo banemibono emininzi engahambelaniyo kunye ne-propaganda, kubaqulunqi abaninzi ukudideka.