DAB TSI YOG COV HAUJ LWM NTAWM HIGH VOLTAGE LOAD SWITCH?

Lub qhov hloov pauv hluav taws xob siab yog cov khoom siv hluav taws xob siab ua ke, uas muaj lub qhov hloov pauv cais, lub fuse, lub thermal relay, lub shunt release thiab lub cuab yeej tua hluav taws xob arc.

Lub qhov hloov pauv hluav taws xob siab muaj lub cuab yeej tua hluav taws xob yooj yim, uas tsuas yog siv tau los ua thiab rhuav tshem cov khoom thauj tam sim no, thiab tsis tuaj yeem siv los rhuav tshem cov khoom thauj luv luv. Yog li ntawd, lub qhov hloov pauv hluav taws xob siab feem ntau phim nrog lub fuse hluav taws xob siab thiab lub thermal release, thiab lub fuse siv los txiav cov khoom thauj luv luv thaum lub sijhawm luv luv. Thaum muaj overload, lub thermal release ua haujlwm los txiav lub qhov hloov pauv hluav taws xob. Vim tias muaj qhov sib txawv pom tseeb thaum lub qhov hloov pauv hluav taws xob raug txiav, nws kuj muaj lub luag haujlwm ntawm kev cais cov khoom siv hluav taws xob kom ntseeg tau tias muaj kev saib xyuas zoo.

Lub tshuab hloov hluav taws xob siab thiab cov khoom siv hluav taws xob sib xyaw ua ke yog qhov tsim nyog rau peb-theem AC 10 kV, 50 Hz lub zog fais fab, lossis siv ua ke nrog cov khoom siv faib hluav taws xob tiav, lub txee hloov hluav taws xob sib xyaw, cov chaw hloov pauv sib xyaw, thiab lwm yam, thiab siv dav hauv kev tsim kho thiab kho dua tshiab hauv thaj chaw, kev lag luam thiab kev tsuas, cov tsev siab thiab cov chaw pej xeem, thiab lwm yam, tuaj yeem siv ua lub zog hluav taws xob lossis lub davhlau ya nyob twg, thiab ua lub luag haujlwm ntawm kev faib hluav taws xob, kev tswj hwm thiab kev tiv thaiv. Nws muaj qhov zoo ntawm lub peev xwm tawg loj, kev nyab xeeb thiab kev ntseeg siab, lub neej hluav taws xob ntev, kev ua haujlwm ntau zaus, cov qauv me me, me me, lub teeb yuag, thiab tsis tas yuav saib xyuas. Nrog kev tawg tam sim no, overload tam sim no. Nws tuaj yeem tawg tam sim no luv luv thiab tiv thaiv kev ua haujlwm ntawm cov khoom siv los ntawm tsis muaj theem. Lub tshuab hloov muaj qhov tawg cais pom tseeb. Nws muaj lub caij nplooj ntoos hlav hluav taws xob ntawm lub tshuab hloov av nrog lub peev xwm kaw, uas tuaj yeem tswj tau deb.

Lub qhov hloov pauv thauj khoom (QL) yog lub qhov hloov pauv uas mob siab rau kev tsim thiab rhuav tshem cov hluav taws xob thauj khoom. Lub qhov hloov pauv thauj khoom siab muaj lub cuab yeej tua hluav taws xob yooj yim thiab qhov chaw txiav tawm pom tseeb, uas tuaj yeem qhib thiab kaw cov hluav taws xob thauj khoom thiab cov hluav taws xob ntau dhau, thiab muaj lub luag haujlwm ntawm lub qhov hloov cais, tab sis tsis tuaj yeem txiav cov hluav taws xob luv luv. Feem ntau, lub Hoobkas hloov pauv thauj khoom siv ua ke nrog cov fuses los txiav cov hluav taws xob txhaum nrog kev pab los ntawm fuses, uas tuaj yeem siv dav hauv kev tsim kho lub zog hluav taws xob hauv nroog thiab nyob deb nroog. Feem ntau siv rau 6 ~ 10kV lub zog hluav taws xob.

Raws li cov khoom siv tua hluav taws xob arc, qhov hloov pauv hluav taws xob siab feem ntau yog muab faib ua hom roj tsim, hom roj compressed, hom nqus tsev thiab hom SF6. Raws li qhov chaw teeb tsa, nws muab faib ua ob pawg: hom sab hauv tsev thiab hom sab nraum zoov.

Lub qhov hloov pauv thauj khoom yog qhov yooj yim hauv cov qauv, me me thiab pheej yig, thiab nws yog qhov tsim nyog rau cov sijhawm uas tsis tas yuav siv roj, tsis tas yuav saib xyuas, thiab ua haujlwm ntau zaus. Ua ke nrog cov fuses, nws tuaj yeem siv ua lub qhov hloov hluav taws xob rau cov neeg siv uas muaj peev xwm me me lossis tsis tseem ceeb los hloov cov circuit breakers. Lub qhov hloov pauv thauj khoom raug xaiv raws li qhov ntsuas voltage thiab tam sim no ntsuas, thiab raug kuaj xyuas rau kev nias thiab thermal stability. Thaum nruab nrog lub fuse, lub peev xwm tawg ntawm lub fuse yuav tsum tau txheeb xyuas, thiab nws qhov dynamic thiab thermal stability yuav tsis raug txheeb xyuas.