A circuit breakerchinhu chemagetsi chinowanzoshandiswa mumaseketi eAC.Iyo yekushandisa modhi inowanzo umbwa neinofambiswa yekubata, inofambiswa yekubata uye inomira kubata.Mudunhu, iyo utility modhi inogona kugura magetsi, kubatanidza magetsi uye kuchengetedza midziyo yemagetsi.Zvinoenderana nechimiro chayo uye nheyo yekushanda, inogona kukamurwa kuitasingle-phase circuit breaker, matatu-phase circuit breaker uyeair circuit breaker.Circuit breaker, semudziyo unovhiringidza pakati pedunhu rekutonga uye magetsi, inoita basa rakakosha mumagetsi grid.Kana redunhu overload, pfupi redunhu uye zvimwe zvikanganiso, kudzivirira yemagetsi panguva yakakodzera chiito achagurwa, kuti dunhu rakazaruka kudzivirira munhu uye pfuma kuchengeteka uye zvimwe midziyo kubva kukuvara.Saka iyocircuit breakeryakashandiswa zvakanyanya mumagetsi system inonziwo "over-undervoltage protector" kana "fuse".Rimwe remabasa akakosha nderekudzima otomatiki magetsi kana paine pfupi pfupi.
Nheyo yekushanda
Kana iyo AC ikozvino kuburikidza nedunhu rinotyora mabatiro, electromagnetic kukwezva, kutyaira chiitiko cheiyo inoshanda sisitimu, kuitira kuti redunhu rinotyora ribude richidonha, nekudaro kucheka dunhu.
Mukuita, chigadziro chekunonoka chinogona kuwedzerwa kuitira kuti dunhu rigone kubviswa chete mushure mokunge kushandiswa kwekushandura kwapera mukati menguva yakatarwa.
Kana iyo pfupi-yekutenderera ikozvino ichipfuura nepakati redunhu rinoputika, simbi iri pedyo nekusangana inonyungudutswa uye inodhonzwa neiyo thermal kusunungurwa nekuda kwearc kinetic simba uye kupisa kwakanyanya kunokonzerwa nekunyunguduka kwekusangana, nekudaro kucheka ikozvino.
Kana shanduko yemagetsi yakavharwa kana dunhu rakabatana nayo rinotadza, muparadzi wedunhu anogona kutyora dunhu munguva pfupi.
Zvinoenderana nechimiro chechimiro chakakamurwa kuva chakamisikidzwa, chinofambiswa uye chakamiswa matatu.
Zvinoenderana neiyo yekuburitsa modhi yakakamurwa kuita bhuku uye magetsi mafomu maviri.
Maererano nemashandiro ekushandisa anogona kukamurwa kuita bhandi kutapurirana uye hapana bhandi kutapurirana marudzi maviri;
Classification
(1)Circuit breakersinogona kukamurwa kuita vacuum interrupter chamber (VHV), arc interrupter gedhi (AVR), vacuum release (VSD) uye vacuum contactor zvinoenderana nepakati pearc interrupter.
(2) Mafambisi ematunhu anogona kukamurwa kuva marudzi matatu: single-phase circuit breaker, three-phase circuit breaker uye air circuit breaker.
(3) Air circuit breaker inogona kupatsanurwa mumhando mbiri, AC uye DC, maererano nevashandisi uye nzvimbo dzakasiyana dzekushandisa.
(4) Mutambo wedunhu unogona kusanganiswa nebhangi remhepo capacitor, air inductor uye zvimwe zvigadzirwa zvemagetsi zvinoenderana nenzira yekuisa, uye inogona kushandiswa sechidziviriro chemagetsi emagetsi.
(5) Iwo akaiswa mumhando yepamusoro-yazvino yekudzivirira, mhando yedziviriro yenguva pfupi uye pamusoro-pasi-voltage rudzi rwekudzivirira zvichienderana nemaitiro avo ekudzivirira.
(6) Kune 100V akatevedzana general-chinangwa mhepo voltage uye ikozvino mamakisi zvinoenderana neyakayerwa voltage uye hunhu hwazvino.
Specification parameter
Rudzi rwekutyora kwedunhu rwakafanana nerwezvimwe midziyo yemagetsi, senge kodhi inoumbwa nemavara "P", "Y" uye manhamba ekugovera switch, uye kodhi inoumbwa netsamba "C" uye manhamba ekuchinja kwebanga. , nezvimwewo, asi mabasa avo uye zvimiro zviri pachena zvakasiyana uye kazhinji hazvigone kushandiswa kune zvakajairwa.Tora ZF6 uye ZF14 semuenzaniso.
2) Yakatemerwa voltage: inoreva kukosha kwakayerwa iyo muparadzi wedunhu anogona kutakura pasi peiyo yakatarwa frequency (50Hz) uye yakatarwa frequency (25Hz).
3) Yakatemerwa ikozvino: inoreva iyo yakanyanya kushanda ikozvino iyo yedunhu breaker inogona kumira pasi pemamiriro akatarwa.
4. "Kuputsa simba" kunoreva kuti muchengeti wedunhu anogona kutendeseka kubvisa AC 50Hz kana DC 1000V kana pasi pasi pemamiriro akatarwa, uye nguva yekuputsa haifaniri kudarika 5ms.
5) Maitiro ekuita
Nheyo yekusarudza
1. Yakakamurwa kuita:
(1) Single-phase circuit breakers zvinoreva izvo zvinoshandiswa kuchengetedza maseketi, mota uye zvimwe zvigadzirwa zvemagetsi.Iyo yedunhu inotyora ine zvakanakira kusashanda uye nyore, asi inodiwa kudzima magetsi munguva iyo mutsetse uye mota zvakawandisa kana kupfupika-kutenderera kudzivirira tsaona kuti isawedzere.Nokudaro, muchengeti wedunhu anofanira kusangana nezvinodiwa zvekucheka magetsi mukati menguva yakatarwa, nenguva shoma yekuputsa, sarudzo yakanaka nezvimwe zvakadaro.
(2) Izwi rekuti "three-phase AC low-voltage circuit breaker" rinoreva chivharo chedunhu chinoshandiswa mukudzivirira mota uye kudzora maseketi, ane basa rakafanana neamwe-phase circuit breaker, asi akawedzera chinodimbura switch kune chimiro chemukati chechishandiso chemagetsi kuitira kuti isangane nezvinodiwa zvekudzivirira mota uye kudzora maseketi mumaseketi eAC.Uye zvakare, ine zvakare yakawandisa relay, undervoltage relay uye zero sequence ikozvino relay.
Nguva yekutumira: Feb-17-2023