Circuit breaker chishandiso chemagetsi mumagetsi system, chinogona kudzima otomatiki kana tambo kana substation iri pfupi dunhu kana kuremerwa kuchengetedza midziyo yemagetsi uye kuchengetedzwa kwemunhu.
High voltage circuit breakerinonyanya kuumbwa nearc yekudzima sisitimu, inovhiringidza sisitimu, kudzora mudziyo uye chekutarisa chinhu.
Kana iyo switch isingakwanisi kubviswa nenguva, mudziyo wemagetsi kana chikamu chemagetsi chinocheka chikanganiso otomatiki kuchengetedza kuchengetedzwa kwemunhu uye kuchengetedzwa kwemidziyo.
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Ini, Arc yekudzima system
Iyo arc yekudzima sisitimu yeakakwira voltage wedunhu breaker inosanganisira arc yekugadzira mudziyo, arc yekudzima mudziyo uye arc yekudzima kamuri.
Mune yakaderera voltage system, kazhinji inoshandisa iyo air interrupter kudzima arc, nekuti mumhepo inovhiringidza haina magetsi emagetsi, saka haigone kuve nearc yekugadzira.
Mune yakakwira voltage system, vacuum arc yekudzima inowanzo shandiswa, uchishandisa thermal mhedzisiro uye electromagnetic simba rezvino muvacuum arc yekudzima kamuri.
Mumaseketi eHVDC, kudzima arc kunowanzoitwa nemuchina extrusion nekuda kweDC hombe iripo uye nyore kuitika kwearc kuputika.
Nekuda kwehukuru hukuru hwepamusoro voltage wedunhu breaker, air arc yekudzima kamuri inonyanya kushandiswa.
II, Disconnection system
Iyo yekutyora yeyakakwira voltage wedunhu breaker inonyanya kusanganisira electromagnet, electromagnetic coil, nezvimwe.
Basa remagineti emagetsi nderekugadzira magineti anodzvanya arc pajoko.
Basa reiyo electromagnetic coil ndere kutumira chiratidzo chepulse kana switch yabatidzwa kana kuvharwa kune controller, uye controller inopedzisa basa rekubvisa nekudzora iyo electromagnetic coil kuvhura kana kudzima.
Iyo electromagnetic coil inoshandawo se electromagnetic isolation.
Joko rakaiswa pane redunhu rinotyora, izvo zvinoita kuti arc voltage igadzire magineti pajoko, iyo inopihwa neaviri emagetsi anotenderera anotenderera, nekudaro kudzivirira arc kubva kutakurwa kubva kudunhu nejoko uye kukonzeresa. tsaona.
III、 Kudzora zvishandiso
Circuit breakers anowanzo tora akakosha ekudzora maturusi, senge microcomputer circuit breakers (microcomputer dziviriro michina), ine mabasa ekutonga nekudzivirira.
Basa reiyo microcomputer yekudzivirira mudziyo kugadzira voltage kana yazvino chiratidzo mudunhu kana paine chikanganiso, wobva waishandura kuita chiratidzo chemagetsi kana pulse chiratidzo kuburikidza neamplifying circuit, uye ziva basa redunhu rebreaker kuburikidza nerelay kana zvimwe zvinhu zvekudzora. senge reactor, isolator, nezvimwewo).
Uye zvakare, kune mamwe ma mechanic switch anoshandiswa otomatiki kudzora switch mashandiro, senge SCR, SCR rectifier diode, nezvimwe.
Kuti uvandudze kuvimbika uye kuchengetedzeka, michina yekudzivirira yemicrocomputer inowanzo shandisa analog yekubuda michina kuti ipe mamwe mabasa ekudzivirira, akadai seanalog input/output (AFD), voltage/current combination (AVR) kana yazvino transformer voltage sampling.
IV, Monitoring zvikamu
Iyo yedunhu inotyora yakashongedzerwa seti ye otomatiki yekutarisa zvikamu, izvo zvinonyanya kushandiswa kuona mamiriro asina kujairika mukuita kwekupwanya kwedunhu.
Yakajairika high-voltage circuit breaker iSF6, SF7, vacuum uye mamwe marudzi, zvichienderana nemhando dzakasiyana dzinogona kukamurwa kuita rated voltage 1000V, 1100V uye 2000V.
Nekuvandudzwa kwesainzi uye tekinoroji, maHV edunhu mabreak anogara achigadziridzwa.Parizvino, SF6 wedunhu breaker uye SF7 wedunhu wedunhu anoshandiswa zvakanyanya munyika yedu.
V, Kuiswa zvinodiwa uye kungwarira kune yakakwira voltage wedunhu mabreak
Paunenge uchiisa iyo yakakwira voltage circuit breaker, kutarisisa kuchabhadharwa kune kureba kwenzvimbo yekuisa uye chinhambwe;iyo inopindirana wiring mode ichasarudzwa pane yedunhu breaker zvinoenderana nevoltage level uye pfupi yedunhu ikozvino nhanho.
Kuti udzivise matambudziko akadai seyekupisa mhedzisiro uye electromagnetic mhedzisiro kana ipfupi reketi ikozvino inoitika, zvinozocherechedzwa kuti iyo yekumisikidza nzvimbo yedunhu inotyora ichave iri kure nenzvimbo yekuremedza sezvinobvira;panguva yekumisikidza, ichave nechokwadi chekuti yakakwira voltage circuit breaker inogona kubhadhariswa zviri nyore kubva pachigadziro chekugovera magetsi, uye iyo inoshanda sisitimu yedunhu ichave nenzvimbo yakakwana yekufamba;uye nzvimbo yekushanda kwekushanda kwechivharo chedunhu ichave yakanakira kuparadzanisa simba rekushanda kubva kune simba rekushanda.
Nguva yekutumira: Feb-15-2023