Ntchito, zigawo zake ndi mafotokozedwe a ma molded case circuit breakers

I. Plastic Case Circuit breaker (MCCB): Ntchito ndi kufotokozera chigawo

Masiku ano, kufunikira kwa magetsi kukuwonjezeka. Osati kokha kuti tizindikire kufunika kwa magetsi panthawi ya kusowa, komanso tiyenera kuonetsetsa kuti tikusunga mwanzeru. Kuti athetse vutoli, zowongolera zamagetsi zikuyikidwa kuti ziziyang'anira zomwe zikuchitika. Nthawi zina, kuchulukirachulukira komanso mabwalo amfupi amatha kuwononga dera. Low-voltage switchgear imagwiritsidwa ntchito kuteteza dera pazochitika zosatsimikizika. M'nkhaniyi, tiwulula kuti wophwanya dera wowumbidwa ndi chiyani? Ndipo ntchito, zigawo zikuluzikulu ndi specifications kuumbidwa mlandu circuit breaker.

II. MCCB ndi chiyani

MCCB ndi chidule cha Plastic-case circuit breaker yomwe imagwiritsidwa ntchito kuteteza mabwalo ndi zigawo zake kuti zisapitirire. Ngati pompopompo sipake pa nthawi yoyenera, zingayambitse kuchulukira kapena kufupika. Zipangizozi zimakhala ndi ma frequency osiyanasiyana, zomwe zimawapangitsa kukhala oyenera kugwiritsa ntchito zosiyanasiyana kuti ateteze mabwalo. Amachokera ku 15 mpaka 1600 amps ndipo amatha kugwiritsidwa ntchito pamagetsi otsika. Mutha kupita patsamba lathu pa www.ace-reare.com. Gulani Acereare Electric MCCB pamtengo wabwino kwambiri.

III. Ntchito ya pulasitiki kesi circuit breaker

● Chitetezo chochulukirachulukira
● Chitetezo chamagetsi
● Tsegulani ndi kutseka dera

MCCBS imatha kulumikizidwa yokha komanso pamanja ndipo imagwiritsidwa ntchito kwambiri ngati njira ina yowonongera ma microcircuit mu machitidwe a photovoltaic. Chophwanyira chophatikizika chamilandu chimayikidwa m'nyumba yowumbidwa kuti chiteteze ku fumbi, mvula, mafuta ndi mankhwala ena.

Popeza kuti zipangizozi zimagwira ntchito ndi mafunde amphamvu kwambiri, zimafunika kuzisamalira bwino nthawi ndi nthawi, zomwe zingathe kuchitidwa mwa kuyeretsa nthawi zonse, kuthira mafuta, ndi kuyesa.

IV. Tetezani zida zanu zamagetsi

Zida zanu zonse zamagetsi zimafunikira mphamvu yokhazikika kuti zizigwira ntchito bwino. Ndikofunikira kukhazikitsa MCCB kapena MCB malinga ndi katundu wapano. Pochita izi, makina apamwamba owongolera makina amatha kutetezedwa popatula magetsi panthawi yamagetsi.

V. Pewani moto

MCCB yomwe imakwaniritsa miyezo yamakampani ndipo ili yabwino imalimbikitsidwa kuti iwonetsetse chitetezo chokwanira. Zida zamagetsi zamagetsi izi zimazindikira zolakwika pakachitika mphamvu yamagetsi kapena kuzungulira kwafupipafupi kuti zitetezedwe ku moto, kutentha ndi kuphulika.

VI. Zigawo ndi mafotokozedwe a ma molded case circuit breakers

Zigawo zinayi zazikulu za chophwanyira chophatikizika chamilandu chimaphatikizapo
• Chipolopolo
• Njira yogwiritsira ntchito
• Dongosolo lozimitsa la Arc
• Chipangizo chaulendo (ulendo wotentha kapena ulendo wamagetsi)

SHELL

Imadziwikanso kuti nyumba, imapereka malo oti nyumba yotsekeredwa ikhazikike zida zonse zophwanyira dera. Amapangidwa ndi thermosetting composite resin (DMC mass material) kapena galasi polyester (magawo opangidwa ndi jakisoni) kuti apereke mphamvu ya dielectric yapamwamba pamapangidwe ake ophatikizika. Dzinali limaperekedwa molingana ndi mtundu ndi kukula kwake kwamilandu yowumbidwa ndipo limagwiritsidwanso ntchito kufotokoza mawonekedwe a wowononga dera (maximum voltage and vote current).

Njira yogwiritsira ntchito

Kutsegula ndi kutseka kwa kukhudzana kumatheka ndi makina ogwiritsira ntchito. Liwiro limene olumikizana amatsegulidwa ndi kutsekedwa zimadalira momwe chogwiriracho chikuyendera. Ngati kukhudzana maulendo, mudzatha kuona kuti chogwirira ali pakati udindo. Ngati wosweka dera ali pamalopo, ndizosatheka kupanga ulendo, womwe umatchedwanso "ulendo wodzidzimutsa".

Pamene wophwanyira dera wagwedezeka, ndiye kuti, ngati chogwiriracho chili pakati, chiyenera kusunthira pamalo omwewo kenako kupita pamalowo. M'malo omwe ophwanyika amaikidwa pagulu (monga switchboard), malo ogwirira ntchito osiyanasiyana amathandizira kupeza dera lolakwika.
Nthawi zambiri, wowononga dera asanachoke pafakitale, tidzazindikira kutsegulidwa ndi kutseka kwa kutsekeka kwa wowononga dera komanso kuzungulira kwaufupi mu gawo limodzi ndi njira zapawiri kuti tiwone ngati wowononga dera wagwedezeka mkati mwa mtengo wokhazikitsidwa kuti atsimikizire chitetezo cha wowononga dera pakugwiritsa ntchito malowa.

Arc-kuzimitsa dongosolo

Arc interrupter: Arcing imachitika pamene wosokoneza dera asokoneza mphamvu. Ntchito ya chosokoneza ndi kutsekereza ndi kugawa arc, potero kuzimitsa. Chipinda chozimitsa cha arc chimatsekeredwa mu bokosi la insulated lamphamvu kwambiri, lomwe limapangidwa makamaka ndi zidutswa zingapo zozimitsa grid, zomwe zimagwira ntchito yofunika kwambiri pakuyambitsa kwa arc ndi kuzimitsa kwa arc muzinthu zamagetsi zotsika kwambiri. Pamene kukhudzana kugawanika chifukwa cha kusokonezeka, komweko komwe kukuyenda kudutsa dera la ionized la kukhudzana kumapanga mphamvu ya maginito kuzungulira arc ndi chosokoneza.

Mizere ya maginito yomwe imapangidwa mozungulira arc imayendetsa arc mu mbale yachitsulo. Mpweyawo umachotsedwa, umasiyanitsidwa ndi arc, kuti uzizizira. Standard MCCBS imagwiritsa ntchito liniya yamakono kudzera pa kukhudzana, komwe, pansi pazigawo zazifupi, kumapanga mphamvu yaing'ono yophulika, yomwe imathandizira kutsegula kukhudzana.

Zambiri zomwe zimatsegulira zimapangidwa ndi mphamvu zamakina zomwe zimasungidwa munjira yolowera. Izi zili choncho chifukwa magetsi onse awiriwa amayenda molunjika.

Chipangizo chaulendo (ulendo wotentha kapena wamagetsi)

Chipangizo chaulendo ndi ubongo wa wowononga dera. Ntchito yayikulu ya chipangizo chodumphira ndikuyendetsa makina ogwiritsira ntchito ngati pali njira yayifupi kapena yochulukirachulukira. Zowononga zachikhalidwe za nkhungu zimagwiritsa ntchito zida za electromechanical tripping. Zowononga ma circuit zimatetezedwa pophatikiza zida zomwe zimakhudzidwa ndi kutentha ndi zida zamagetsi zapaulendo, zomwe zitha kupereka chitetezo chapamwamba komanso kuyang'anira. Ambiri omangika ophwanyira mazenera amagwiritsa ntchito chinthu chimodzi kapena zingapo zapaulendo kuti apereke chitetezo cham'dera pazinthu zosiyanasiyana. Zinthu zodumphirazi zimateteza pakuchulukira kwamafuta, mabwalo amfupi ndi kulephera kwapansi kwa arc.

MCCBS wamba imapereka zida zokhazikika kapena zosinthika zama electromechanical. Ngati woyendetsa dera wokhazikika akufunika mtundu watsopano waulendo, wophwanya dera lonse ayenera kusinthidwa. Zipangizo zamaulendo zosinthika zimatchedwanso mapulagi ovotera. Ena ophwanya madera amapereka kusinthasintha pakati pa zida zamagetsi zamagetsi ndi zamagetsi mumtundu womwewo.

Kuwonetsetsa kuti MCCB ikugwira ntchito moyenera, kukonzanso nthawi zonse kuyenera kuchitidwa, kuphatikiza kuyang'ana, kuyeretsa ndi kuyesa.

VII. Kugwiritsa ntchito molded case circuit breaker

MCCB idapangidwa kuti igwirizane ndi mafunde okwera kwambiri ndipo imagwiritsidwa ntchito kwambiri pantchito zolemetsa monga zosintha zosintha zapaulendo, kutetezedwa kwa ma mota, kuteteza mabanki a capacitor, ma welders, chitetezo cha ma jenereta ndi odyetsa.

Zofotokozera za molded case circuit breaker
• Ue - Adavotera mphamvu yamagetsi.
• Ui - Voteshoni ya insulation yamagetsi.
• Uimp - mphamvu yolimbana ndi magetsi.
•Mu - mwadzina ovoteledwa panopa.
•Ics - Idavoteredwa kuti imagwira ntchito pakanthawi kochepa.
•Icu - Chidavotera kuchuluka kwa gawo lalifupi.