Mabasa, zvikamu uye zvakatemwa zveakaumbwa kesi circuit breakers

I. Plastic Case Circuit breaker (MCCB): Basa uye chikamu tsanangudzo

Munyika yanhasi, kudiwa kwemagetsi kuri kuwedzera. Hatifaniri kungoziva kukosha kwemagetsi munguva yekushayikwa, asi tinofanirawo kuva nechokwadi chokuti tinoachengetedza nenzira ine musoro. Kugadzirisa dambudziko iri, masimba emagetsi ari kuiswa kuti atarise ikozvino. Dzimwe nguva, kuwandisa uye mapfupi maseketi anogona kukuvadza dunhu. Low-voltage switchgear inoshandiswa kuchengetedza dunhu panguva yezviitiko zvisina chokwadi. Muchikamu chino, ticharatidza chii chinonzi molded case circuit breaker? Uye basa, zvikamu uye zvakatemwa zveakaumbwa kesi circuit breaker.

II. Chii chinonzi MCCB

MCCB ipfupiso yePlastiki-kesi yedunhu redunhu rinoshandiswa kuchengetedza maseketi uye zvikamu zvawo kubva kune overcurrent. Kana iyi yazvino isiri yega panguva yakakodzera, inokonzeresa kuwandisa kana kupfupika kwedunhu. Zvishandiso izvi zvine huwandu hwakawanda hwema frequency, izvo zvinoita kuti zvikodzere kune akasiyana maapplication ekudzivirira maseketi. Iwo anosiyana muchiyero chazvino kubva pa15 amps kusvika 1600 amps uye anogona kushandiswa mune yakaderera-voltage application. Unogona kushanyira webhusaiti yedu pa www.ace-reare.com. Tenga Acereare Electric MCCB nemutengo wakanakisa.

III. Basa repurasitiki kesi circuit breaker

● Dziviriro yakawandisa
● Kudzivirira kukanganisa kwemagetsi
● Vhura uye uvhare dunhu

MCCBS inogona kubviswa otomatiki uye nemaoko uye inoshandiswa zvakanyanya seimwe nzira kune microcircuit breakers mu photovoltaic system. Iyo molded kesi circuit breaker inoiswa mune yakaumbwa imba kuti idzivirire kubva kuguruva, mvura, mafuta uye mamwe makemikari.

Sezvo midziyo iyi ichishanda nemhepo yakakwira, inoda kugadziridzwa kwakafanira nguva nenguva, izvo zvinogona kuitwa kuburikidza nekuchenesa nguva dzose, kuisa mafuta, uye kuongororwa.

IV. Chengetedza midziyo yako yemagetsi

Yese midziyo yako yemagetsi inoda tambo yakadzikama kuti ishande nemazvo. Zvakakosha kuisa MCCB kana MCB maererano nekutakura ikozvino. Nekuita izvi, masisitimu emuchina akasarudzika anogona kuchengetedzwa nekutsaura magetsi panguva yekutadza kwemagetsi.

V. Dzivisa moto

MCCB inosangana nezviyero zveindasitiri uye ndeyemhando yakanaka inokurudzirwa kuve nechokwadi chekuchengetedza kwakanyanya. Aya magineti emagetsi anoona kukanganisa pakaitika simba rekuvhiyiwa kana dunhu pfupi kuvadzivirira kubva kumoto, kupisa uye kuputika.

VI. Zvikamu uye zvakatemwa zveakaumbwa kesi circuit breakers

Iwo mana makuru echikamu cheakaumbwa kesi circuit breaker anosanganisira
• Shell
• Operating mechanism
• Arc yekudzima hurongwa
• Chishandiso cherwendo (rwendo rwekupisa kana rwendo rwemagetsi)

SHELL

Iyo inozivikanwawo seimba, inopa nzvimbo kune iyo insulated imba yekuisa ese edunhu breaker zvikamu. Yakagadzirwa ne thermosetting composite resin (DMC misa zvinhu) kana girazi polyester (jekiseni yakaumbwa zvikamu) kuti ipe yakakwira dielectric simba mukugadzira kwayo compact. Iri zita rinopihwa zvinoenderana nerudzi uye saizi yekesi yakaumbwa uye rinoshandiswazve kutsanangura hunhu hwedunhu rinotyora (yakanyanya voltage uye yakayerwa ikozvino).

Operating mechanism

Kuvhura uye kuvhara kwekusangana kunoitwa nemaitiro ekushandisa. Kumhanya kunoita macontacts kuvhurwa nekuvharwa kunoenderana nekuti mubato uri kufamba sei. Kana iyo yekubata nzendo, iwe unozokwanisa kuona kuti mubato uri pakati penzvimbo. Kana muparadzi wedunhu ari pachinzvimbo, hazvibviri kuita kuti ifambe, iyo inonziwo "otomatiki rwendo".

Kana muparadzi wedunhu akagumburwa, kureva kuti, kana mubato uri pakati penzvimbo, unofanira kutanga waendeswa kunzvimbo yekudzima uye wozoenda kune chinzvimbo. Muzviitiko apo zvikwata zvemadunhu zvakaiswa muboka (zvakadai seswitchboard), zvigaro zvakasiyana-siyana zvinobatsira kuwana dunhu rakashata.
Kazhinji, muparadzi wedunhu asati abuda mufekitori, tinoona kuvhurwa nekuvhara kwekuremerwa kwedunhu uye kupfupika kwedunhu mune imwe-chikamu uye mbiri-chikamu nzira dzekutarisa kana muparadzi wedunhu akapunzika mukati meiyo yakatarwa kukosha kuti ive nechokwadi. kuchengetedzwa kwemugadziri wedunhu mukushandiswa chaiko kwenzvimbo.

Arc-kudzimisa system

Arc interrupter: Arcing inoitika kana muparadzi wedunhu akanganisa ikozvino. Basa rekuvhiringidza nderekuvhara uye kupatsanura arc, nekudaro kuidzima. Iyo arc yekudzima kamuri yakavharirwa mubhokisi repamusoro-simba rakavharidzirwa, iro rinonyanya kuumbwa nenhamba yearc inodzima grid zvidimbu, izvo zvinoita basa rinokosha mukutanga kwearc uye arc kudzimisa mune yakaderera-voltage zvigadzirwa zvemagetsi. Kana iyo yekubatana ichitsemuka nekuda kwekuvhiringidzwa, iyo ikozvino inoyerera kuburikidza neiyo ionized dunhu rekusangana inogadzira magineti yakatenderedza arc uye inovhiringidza.

Mitsetse yemagineti yakagadzirwa yakatenderedza arc inodzinga arc mundiro yesimbi. Iyo gasi inobva yaitwa deionized, inoparadzaniswa nearc, ichibvumira kuti itonhorere. Standard MCCBS inoshandisa mutsara wezvino kuburikidza nekubatana, iyo, pasi pemamiriro mapfupi edunhu, inogadzira simba diki rinoputika, rinobatsira kuvhura iyo yekubata.

Mazhinji echiito chekuvhura anogadzirwa nemagetsi emagetsi akachengetwa mumagetsi ekufambisa pachayo. Izvi zvinodaro nekuti iyo iripo mune ese macontact inoyerera mune imwechete yakananga ikozvino.

Rwendo mudziyo (zvinopisa kana electromagnetic rwendo)

Chishandiso cherwendo ipfungwa yedunhu rinotyora. Basa rakakosha remudziyo wekugumbusa ndere kukwenya mashandisirwo ekushandisa kana iri pfupi redunhu kana kuenderera mberi nekuremedza ikozvino. Traditional mold-case circuit breakers vanoshandisa electromechanical tripping zvishandiso. Circuit breaker inodzivirirwa nekubatanidza tembiricha inotapukira nemidziyo yemagetsi yekufamba, iyo zvino inogona kupa yakawedzera dziviriro uye yekutarisa. Mazhinji akaumbwa makesi edunhu mabreak anoshandisa imwe kana akawanda akasiyana erwendo zvinhu kuti ape dziviriro yedunhu kune akasiyana maapplication. Izvi zvinhu zvinotenderera zvinodzivirira kubva pakupisa kwemafuta, mapfupi maseketi uye kutadza kwepasi kwearc.

Yakajairika MCCBS inopa yakagadziriswa kana inochinjika electromechanical tripping zvishandiso. Kana yakagadziriswa rwendo rwedunhu breaker inoda rwendo rutsva rwekufamba, iyo yese yedunhu inotyora inofanira kutsiviwa. Zvishandiso zvekufamba zvinochinjika zvinonziwo rated plugs. Mamwe mabreaker edunhu anopa kuchinjika pakati pe electromechanical uye zvemagetsi rwendo midziyo mune imwechete furemu.

Kuti ive nechokwadi chekushanda kwakanaka kweMCCB, kugadzirisa nguva dzose kunofanirwa kuitwa, kusanganisira kuongorora kwekuona, kuchenesa uye kuyedzwa.

VII. Kushandiswa kwe molded case circuit breaker

MCCB yakagadzirirwa kubata mafungu akakwirira uye inoshandiswa zvakanyanya mumabasa anorema akadai sekugadzirisa rwendo Zvirongwa zvezvishandiso zvakaderera zvazvino, kuchengetedzwa kwemotor, kuchengetedzwa kwe capacitor banks, welders, kuchengetedzwa kwejenereta uye feeders.

Zvinotsanangurwa zve molded case circuit breaker
• Ue - Rated kushanda voltage.
•Ui - Rated insulation voltage.
•Uimp - impulse inomira voltage.
•In - nominal rated current.
•Ics - Yakatemerwa kushanda kwepfupi-sekete yekutyora kugona.
•Icu - Yakatemerwa muganhu wechikamu chechikamu chechikamu.