Sebhizimusi rinomiririra zvakanyanya muWenzhou, YUANKY ine nhoroondo refu yebudiriro uye yakazara maindasitiri cheni. Zvigadzirwa zvedu zvakare zvinokwikwidza zvakanyanya mumusika.sezvinoitaMCB.

MCB (Miniature Circuit Breaker, diki redunhu breaker) ndeimwe yeanonyanya kushandiswa ekuchengetedza terminal maturusi mune yakaderera-voltage yekugovera masisitimu. Nezvakanakira senge saizi diki, kushanda kwakaringana uye kuchengetedzwa kwakaringana, inoshandiswa zvakanyanya mumitsara yekuparadzira yezvivakwa zveindasitiri, zvekutengesa uye zvehurumende, kuita mabasa akakosha senge kurema kwedunhu uye pfupi-circuit kudzivirira. Iyi inotevera ongororo yakadzama yeayo anoshanda maficha kubva kune akawanda maficha akadai seakakosha mabasa, hunyanzvi hunhu, uye maficha ekushandisa.

I. Core Dziviriro Basa: Iva nechokwadi chekushanda kwakachengeteka kwedunhu

Iko kukosha kweMCB kuri mukuchengetedzwa kwekuchengetedza mitsara yekugovera uye zvigadzirwa zvemagetsi. Basa rayo rekudzivirira rinonyanya kuwanikwa kuburikidza nemaitiro chaiwo ekuita, kunyanya kusanganisira anotevera marudzi maviri ekudzivirira kwepakati:

1. Overload kudzivirira basa

Kana dunhu riri kushanda zvakajairika, ikozvino iri mukati meyero yakatarwa. Zvisinei, kana pane zvigadzirwa zvemagetsi zvakawandisa kana kuti dunhu rinoremerwa kwenguva yakareba, ikozvino mumutsara ichapfuura kukosha kwakarongwa, zvichiita kuti waya dzipise. Kana yakaremerwa kwenguva yakareba, inogona kukonzera kuchembera kwekudzivirira, maseketi mapfupi uye kunyange moto. Kudzivirirwa kwekuremerwa kweMCB kunowanikwa kuburikidza nebimetallic strip thermal trip mudziyo: kana ikozvino yadarika kukosha kwakayerwa, bimetallic strip inokotama uye inoremara nekuda kwekupisa kunoitwa neazvino, ichityaira nzira yekufamba kuita, zvichiita kuti wedunhu wedunhu avhure uye acheke dunhu.

Kudzivirirwa kwayo kwekuremerwa kune inverse-nguva hunhu, ndiko kuti, iyo yakakura kuwandisa ikozvino, ipfupi nguva yekuita. Semuenzaniso, kana yazvino iri 1.3 times the rated current, nguva yekushanda inogona kugara kwemaawa akati wandei. Kana yazvino inosvika katanhatu iyo yakayerwa ikozvino, nguva yekuita inogona kupfupikiswa kusvika mukati memasekonzi mashoma. Izvi hazvingodziviriri kutsika kusingakoshi kunokonzerwa nekuremerwa kwenguva pfupi-pfupi asi zvakare nekukurumidza kugura dunhu kana paine yakanyanya kuwandisa, kuwana inochinjika uye yakavimbika kuchengetedzwa.

2. Short-circuit kudzivirira basa

Short circuit ndeimwe yezvinokanganisa zvakanyanya mumaseketi, kazhinji zvinokonzerwa nekukuvadzwa kwekuvharwa kwewaya kana kukanganisa kwemukati kwemidziyo. Panguva ino, mafungu azvino anowedzera ipapo (zvichida kusvika makumi kana kunyange mazana enguva yakayerwa ikozvino), uye simba guru remagetsi uye kupisa kunogadzirwa kunogona kupisa nekudzima waya nemidziyo, uye kutokonzera moto kana tsaona dzemagetsi. Kudzivirirwa kupfupi-kutenderera kweMCB kunowanikwa kuburikidza nemagetsi ekufamba-famba mudziyo: kana iyo pfupi-yedunhu ikozvino inopfuura nepacoil ye electromagnetic rwendo mudziyo, simba remagetsi remagetsi rinogadzirwa, richikwevera armature kurova nzira yerwendo, zvichiita kuti vanobatika vakurumidze kuvhura uye kucheka dunhu.

Iyo nguva yekuita yekudzivirira-pfupi-yedunhu ipfupi zvakanyanya, kazhinji mukati me 0.1 masekonzi. Inogona kukurumidza kupatsanura nzvimbo yekukanganisa mhosva isati yawedzera, ichideredza kukuvadzwa kwezvikanganiso zvenguva pfupi kumutsara nemidziyo, nekuchengetedza kuchengetedzwa kwemunhu nemidziyo.

Ii. Technical Features: Yakarurama, yakagadzikana uye yakavimbika

1. Kururamisa kwepamusoro mukufamba

Iwo ekudzivirira chiito kukosha kweMCB akanyatso gadzirwa uye akagadziriswa kuti ave nechokwadi chekushanda mukati meiyo yakataurwa yazvino renji. Ikozvino yekumisikidza kukosha kwayo kwekudzivirira kwekuremerwa (yakadai sekusashanda pa1.05 nguva yakatarwa ikozvino uye kushanda mukati menguva yakabvumiranwa panguva 1.3 nguva yakayerwa ikozvino) uye hushoma hwekushandisa ikozvino yekudzivirira-pfupi dunhu (kazhinji 5 kusvika 10 nguva yeyakayerwa ikozvino) zvese zvinoenderana nezviyero zvepasi rose (senge IEC 60898) uye yenyika 3 GB 109 zviyero. Munguva yekugadzira, MCB yega yega inofanirwa kuomeserwa calibration kuti ive nechokwadi chekuti chikanganiso chenguva pasi pemamiriro akasiyana azvino chinodzorwa mukati meiyo inobvumidzwa renji, kudzivirira "kutadza kushanda" (kwete kugumburwa panguva yekukanganisa) kana "kushanda kwenhema" (kugumburwa panguva yekushanda kwakajairika).

2. Hupenyu hurefu hwemagetsi uye hwemagetsi

MCB inoda kugara ichimira pakuvhara nekuvhura mashandiro pamwe nekukanganisa kwazvino, nekudaro kuve nezvinodiwa zvakasimba zvehupenyu hwemagetsi nemagetsi. Mechanical life inoreva nhamba yenguva iyo muparadzi wedunhu anoshanda pasina-ikozvino. Hupenyu hwemakanika hwemhando yepamusoro MCB hunogona kusvika pamusoro pe10,000 nguva. Upenyu hwemagetsi hunoreva huwandu hwenguva dzaanoshanda pasi pemutoro panguva yakatarwa, kazhinji isingasviki ka2,000. Zvikamu zvaro zvemukati zvakakosha (zvakadai sematanho, nzira dzekugumbura, uye zvitubu) zvinogadzirwa nepamusoro-simba zvinhu (senge sirivheri alloy contacts uye phosphor bronze conductive zvikamu), uye kuburikidza neayo chaiwo ekugadzirisa uye nzira dzekurapa kupisa, kusagadzika kwavo kupfeka, kusagadzikana kwekuora, uye kuneta kuramba kunowedzerwa kuve nechokwadi chekuita kwakagadzikana kunyangwe mushure mekushandisa kwenguva refu.

3. Kupwanya simba kunogadziriswa kune zvinodiwa zvechiitiko

Kupwanya simba kunoreva huwandu hwepamusoro-pfupi-yedunhu ikozvino kukosha iyo MCB inogona kutyora zvakachengeteka pasi pemamiriro akatarwa, uye ndiyo musimboti wechiratidzo chekuyera kugona kwayo kwekudzivirira-pfupi. Zvichienderana nemamiriro ekushandisa, kugona kwekutyora kweMCB kunogona kuiswa mumatanho akawanda, akadai se:

Muzviitiko zvevagari vemo, MCBS ine simba rekutyora 6kA kana 10kA inowanzoshandiswa, inogona kubata kukanganisa-pfupi mudzimba kana nzvimbo diki dzekutengesa.

Muzviitiko zvemaindasitiri, MCBS ine hunyanzvi hwekupwanya (senge 15kA uye 25kA) inodiwa kuti ijairane nemhoteredzo ine midziyo mikuru uye mahombe mapfupi-edunhu mafungu.

Kuzadzikiswa kwekupwanya simba kunoenderana neyakagadziridzwa arc yekudzima system (senge grid arc yekudzima kamuri). Munguva yekupwanya kwepfupi, iyo arc inokurumidza kuunzwa mukamuri yekudzima arc, uye iyo arc inokamurwa kuita akawanda mapfupi arcs kuburikidza nesimbi grids, inoderedza iyo arc voltage uye nekukurumidza kudzima arc kudzivirira kukanganisa kwemukati chimiro chedunhu rinopwanya nekuda kwekukwira kwearc tembiricha.

Iii. Zvimiro uye Zvekushanda Hunhu: Miniaturization uye nyore

Compact muhukuru uye nyore kuisa

MCB inotora modular dhizaini, ine compact muhukuru (kazhinji ine akajairwa mamodules akadai 18mm kana 36mm muhupamhi), uye inogona kuiswa yakananga panjanji yemabhokisi akajairwa ekugovera kana makabati ekugovera, kuchengetedza nzvimbo yekuisa. Yayo compact chimiro inogonesa yakazvimirira kudzivirira kweakawanda maseketi mukati meiyo shoma simba rekugovera nzvimbo. Semuenzaniso, mubhokisi rekugovera imba, akawanda MCBS anogona kushandiswa kudzora maseketi akasiyana semwenje, zvigadziko, uye maairconditioner zvichiteerana, kuwana kuchengetedzwa kwakasiyana uye manejimendi, zviri nyore kuona kukanganisa uye kutonga kwesimba rekushandisa.

2. Easy kushanda uye nyore kuchengeta

Iyo yekushandisa michina yeMCB yakagadzirirwa vanhu. Kuvhara (” ON “chinzvimbo) uye kuvhura (” OFF” chinzvimbo) mabasa anowanikwa kuburikidza nemubato. Mamiriro emubato anooneka zvakajeka, achibvumira kutonga kwakajeka kwedunhu riri-off state. Mushure mekutadza TRIP, mubato unozongove uri pakati penzvimbo (" TRIP "chinzvimbo), ichigonesa vashandisi kuti vaone nekukurumidza dunhu rine kukanganisa. Paunenge uchigadzirisa, ingo fambisa mubato kune "OFF" chinzvimbo uye wobva waisundira kune "ON" chinzvimbo. Hapana maturusi ehunyanzvi anodiwa uye kushanda kuri nyore. Mukugadzirisa kwezuva nezuva, MCB haidi kugadzirisa kwakaoma kana kuongororwa. Inongoda kuongororwa nguva dzose kuti ive nechokwadi chekuti chitarisiko chakasimba uye kushanda kwakatsetseka, zvichikonzera kuderera kwemari yekuchengetedza.

3. Excellent insulation performance

Kuti ive nechokwadi chekuchengetedzwa kwemagetsi, iyo casing uye yemukati insulating zvikamu zveMCB zvinogadzirwa nepamusoro-voltage uye yakakwirira-tembiricha inodzivirira insulating zvinhu (senge thermosetting mapurasitiki uye flame-retardant ABS), ine insulation resistance ye ≥100MΩ, inokwanisa kushingirira 2500V AC AC voltage inomira paminiti yekumira kana flashoverno test. Iyo inogona kuramba ichichengetedza kuita kwakanaka kwekudzivirira munzvimbo dzakaomarara senge kunyorova uye guruva, kudzivirira kuvuza kana nhanho-kune-chikamu mapfupi maseketi, uye kuve nechokwadi chekuchengetedza kwevashandisi nemidziyo.

Iv. Mabasa Akawedzerwa uye Kuchinjika: Kusangana Nezvinodiwa Zvakasiyana

1. Diversify mhando dzakatorwa

Pamusoro peiyo yekutanga kuremerwa uye pfupi-yedunhu kuchengetedza, MCB inogona zvakare kusangana nezvinodiwa zveakasiyana mamiriro kuburikidza nekuwedzera kwekushanda. Common derivative marudzi anosanganisira:

- MCB ine leakage dziviriro (RCBO) : Inobatanidza kuvuza yekuona module pahwaro hweMCB yakajairwa. Kana kuvuza kukaitika mudunhu (yakasara ikozvino inodarika 30mA), inogona kukurumidza kufamba kudzivirira tsaona dzekuvhundutsa kwemagetsi uye inoshandiswa zvakanyanya mumaseketi edzimba.

- MCB ine overvoltage / undervoltage dziviriro: Inofamba otomatiki kana giredhi remagetsi ranyanya kukwira kana kuti rakaderera kudzivirira midziyo inonzwisisika senge mafiriji uye maair conditioner kubva mukukuvadzwa kunokonzerwa nekushanduka kwemagetsi.

- Inogadziriswa yakayerwa yazvino MCB: Gadzirisa iyo yakayerwa ikozvino kukosha kuburikidza neknob, inokodzera mamiriro apo mutoro wazvino unoda kugadziridzwa zviri nyore.

2. Kuchinja kwakasimba kwezvakatipoteredza

MCB inogona kushanda zvakadzikama pasi pezvakasiyana siyana zvezvakatipoteredza, zvinowanzoshanda mukati metembiricha ye -5 ℃ kusvika 40 ℃ (mienzaniso yakakosha inogona kuwedzerwa kusvika -25 ℃ kusvika 70 ℃), iine hunyoro hwe ≤95% (hapana condensation), uye inogona kuenderana nemamiriro ekunze enzvimbo dzakasiyana. Zvichakadaro, chimiro chayo chemukati chine humwe kugona kuramba kuzununguka uye kuvhunduka, uye inogona kushanda yakavimbika munzvimbo dzemaindasitiri kana mota dzekufambisa (senge ngarava nemotokari dzevaraidzo) nekuzunguzika kushoma.

Misiyano kubva kune mamwe macircuit breaker:

MCB (Miniature Circuit Breaker): Inonyanya kushandiswa kuchengetedzwa kwedunhu ine yakaderera ikozvino (kazhinji isingasviki 100 amperes).

MCCB (Molded Case Circuit Breaker): Inoshandiswa pakudzivirira dunhu nemhepo yakakwira (kazhinji yakakura kupfuura 100 amperes) uye inokodzera michina mikuru uye masisitimu ekuparadzira simba.

RCBO (Leakage Circuit Breaker): Inosanganisa overcurrent kudzivirira uye leakage yekudzivirira mabasa, uye inogona panguva imwe chete kuchengetedza dunhu kubva pakuremerwa, pfupi pfupi uye kuvuza.