Mabasa, zvikamu uye marongero ema "molded case circuit breakers"

I. Kesi yepurasitiki Dunhu Breaker (MCCB): Tsananguro yebasa uye chikamu

Munyika yanhasi, kudiwa kwemagetsi kuri kuwedzera. Hatifaniri kungoziva chete kukosha kwemagetsi munguva dzekushomeka, asi tinofanirawo kuva nechokwadi chekuti tinoachengetedza nenzira ine musoro. Kugadzirisa dambudziko iri, magadzirirwo emagetsi ari kuiswa kuti atarise magetsi. Dzimwe nguva, overloads uye short circuits zvinogona kukanganisa circuit. Low-voltage switchgear inoshandiswa kuchengetedza circuit panguva dzezviitiko zvisingazivikanwe. Muchinyorwa chino, ticharatidza kuti chii chinonzi molded case circuit breaker? Uye basa, zvikamu uye specifications yemolded case circuit breaker.

II. Chii chinonzi MCCB

MCCB ipfupiso yePlastic-case circuit breaker inoshandiswa kudzivirira macircuit nezvimwe zvikamu zvawo kubva pakukwira kwemagetsi. Kana magetsi aya asina kuparadzaniswa panguva yakakodzera, anokonzera kuwanda kwemagetsi kana kupfupika kwemagetsi. Midziyo iyi ine frequency yakakura, izvo zvinoita kuti ikwanise kushandiswa mumhando dzakasiyana dzemashandisirwo ekudzivirira macircuit. Anowanikwa kubva pa15 amps kusvika 1600 amps uye anogona kushandiswa mumashandisirwo emagetsi mashoma. Unogona kushanyira webhusaiti yedu pa www.ace-reare.com. Tenga Acereare Electric MCCB nemutengo wakanakisa.

III. Basa remuchina wekupwanya circuit wepurasitiki

● Dziviriro yekuremerwa zvakanyanya
● Kudzivirira matambudziko emagetsi
● Vhura uye vhara dunhu

MCCBS inogona kubviswa otomatiki uye nemaoko uye inoshandiswa zvakanyanya senzira yekuchinja ma microcircuit breakers muma photovoltaic systems. Molded case circuit breaker inoiswa mumolded housing kuti idzivirire kubva kuguruva, mvura, mafuta nemamwe makemikari.

Sezvo michina iyi ichibata mafungu emvura akakwira, inoda kugadziriswa kwakakodzera nguva nenguva, izvo zvinogona kuitwa nekuchenesa nguva dzose, kuisa mafuta, uye kuyedza.

IV. Dzivirira midziyo yako yemagetsi

Midziyo yako yese yemagetsi inoda magetsi akasimba kuti ishande zvakanaka. Zvakakosha kuisa MCCB kana MCB zvichienderana nemagetsi anomhanya. Nekuita izvi, masisitimu ekudzora michina akasimba anogona kudzivirirwa nekubvisa magetsi panguva yekutadza kushanda kwemagetsi.

V. Dzivisa moto

MCCB inosangana nezvinodiwa zveindasitiri uye ine mhando yakanaka inokurudzirwa kuti ive nechokwadi chekuti yakachengeteka zvakanyanya. Midziyo iyi yemagetsi inoona zvikanganiso kana paine simba guru kana kuti short circuit kuti izvidzivirire kubva kumoto, kupisa nekuputika.

VI. Zvikamu uye zvirevo zvema "molded case circuit breakers"

Zvinhu zvina zvikuru zvemuchina wekupwanya circuit wekasi wakaumbwa zvinosanganisira
• Goko
• Nzira yekushandisa
• Sisitimu yekudzima moto yeArc
• Chishandiso cherwendo (rwendo rwekupisa kana rwendo rwemagetsi)

GOKO

Inozivikanwawo seimba, inopa nzvimbo yekuti imba inochengetedzwa ne insulated ikwanise kuisa zvikamu zvese zve circuit breaker. Yakagadzirwa ne thermosetting composite resin (DMC mass material) kana glass polyester (injection molded parts) kuti ipe simba rakawanda re dielectric mukugadzirwa kwayo kwakabatana. Zita iri rinopiwa zvichienderana nerudzi nehukuru hwe case yakaumbwa uye rinoshandiswa zvakare kutsanangura hunhu hwe circuit breaker (maximum voltage uye rated current).

Maitiro ekushandisa

Kuvhurwa nekuvharwa kwekubatana kunoitwa nechinhu chinoshanda. Kumhanya kwekuvhurwa nekuvharwa kwekubatana kunoenderana nekuti mubato uri kufamba nekukurumidza sei. Kana kubatana kukadonha, unokwanisa kuona kuti mubato uri pakati. Kana circuit breaker iri panzvimbo yayo, hazvigoneke kuti igumbuke, iyo inonziwo "automatic trip".

Kana circuit breaker ikagumburwa, kureva kuti, kana mubato uri pakati, unofanira kutanga waendeswa kunzvimbo yekunze wozoenda panzvimbo yekudzimwa. Muzviitiko apo circuit breakers dzakaiswa muboka (senge switchboard), nzvimbo dzakasiyana dzemubato dzinobatsira kuwana circuit isina kunaka.
Kazhinji, circuit breaker isati yabuda mufekitori, tichaona kuvhurwa nekuvharwa kwecircuit breaker overload uye short circuit nenzira dze single-phase uye dual-phase kuti tione kana circuit breaker yakagumburwa mukati mehuwandu hwakatarwa kuti tive nechokwadi chekuti circuit breaker yakachengeteka pakushandiswa chaiko kwenzvimbo yacho.

Sisitimu yekudzimisa denga

Chinovhara tambo: Kuvhara tambo kunoitika kana circuit breaker ikakanganisa magetsi. Basa remuchivhara nderekusunga nekuparadzanisa magetsi, nokudaro ichidzima. Kamuri rekudzima tambo rakavharirwa mubhokisi rine insulation yakasimba, iro rinonyanya kuumbwa nezvidimbu zvegrid rekudzimisa tambo, izvo zvinoita basa rakakosha mukutanga magetsi uye kudzimisa magetsi muzvigadzirwa zvemagetsi zvine voltage shoma. Kana kubatana kwacho kukamuka nekuda kwekukanganiswa, magetsi anoyerera nepakati penzvimbo ine ionized yekubatana anogadzira simba remagineti rakatenderedza magetsi ne interrupter.

Mitsetse yemagineti inogadzirwa yakatenderedza arc inopinza arc muplate yesimbi. Gasi rinozobviswa maion, richiparadzaniswa ne arc, zvichiita kuti itonhore. Standard MCCBS inoshandisa linear current kuburikidza necontact, iyo, mumamiriro e short circuit, inogadzira simba diki rekuputika, iro rinobatsira kuvhura contact.

Ruzhinji rwebasa rekuvhura rinogadzirwa nesimba remuchina rinochengetwa muchinhu chinogumburwa. Izvi zvinokonzerwa nekuti simba remagetsi riri mumativi ese maviri rinoyerera mumagetsi akafanana.

Chishandiso cherwendo (rwendo rwekupisa kana rwemagetsi)

Chishandiso chekutenderera ndicho uropi hwemuchina wekupwanya dunhu. Basa guru remuchina wekupwanya nderekupwanya mashandiro ekushanda kana paine current pfupi kana kuti continuous overload current. Zvishandiso zvekupwanya dunhu zvechinyakare zvemould-case zvinoshandisa michina yekupwanya dunhu yemagetsi. Zvishandiso zvekupwanya dunhu zvinodzivirirwa nekubatanidza michina inonzwa tembiricha nemidziyo yekupwanya dunhu yemagetsi, izvo zvino zvinogona kupa dziviriro yepamusoro uye kutarisa. Zvishandiso zvakawanda zvekupwanya dunhu zvemould case zvinoshandisa chimwe kana zvimwe zvinhu zvakasiyana zverwendo kuti zvipe dziviriro yedunhu kune zvakasiyana-siyana. Zvinhu izvi zvinopwanya zvinodzivirira kubva pakuwanda kwemafuta, mashort circuit uye arc ground failure.

MCCBS dzemazuva ano dzinopa michina yekukwenya yemagetsi yakagadziriswa kana inochinjika. Kana mudziyo wekukwenya wemagetsi wakagadziriswa uchida kutariswa kwerwendo rutsva, mudziyo wese wekukwenya unofanira kutsiviwa. Midziyo yekukwenya inogona kuchinjwa inonziwo mapulagi akarongwa. Mamwe macircuit breaker anopa mukana wekuchinjana pakati pemidziyo yekukwenya yemagetsi neyemagetsi iri mufuremu imwe chete.

Kuti MCCB ishande zvakanaka, kugadziriswa kunofanirwa kuitwa nguva dzose, kusanganisira kuongorora nemaziso, kuchenesa uye kuyedza.

VII. Kushandiswa kwe "molded case circuit breaker"

MCCB yakagadzirirwa kubata mafungu emvura akakwira uye inoshandiswa zvakanyanya mumabasa anorema akadai sekugadzirisa magadzirirwo emafambiro emagetsi akaderera, kuchengetedzwa kwemamota, kuchengetedzwa kwema capacitor banks, welders, kuchengetedzwa kwemajenareta nemafeeder.

Magadzirirwo emuchina wekugadzirisa circuit breaker wakaumbwa
•Ue - Voltage yekushanda yakayerwa.
•Ui - Voltage yekudzivirira yakayerwa.
•Uimp - inodzivirira kumanikidzwa kwemhepo.
•Muri - current yakayerwa nemazita.
•Ics - Kugona kuputsa ma "short-circuit" kwakayerwa.
•Icu - Kukwanisa kwechikamu chepfupi kwakayerwa.