DC Circuit Breaker neFuse, izvo zviri michina yekudzivirira yepamusoro

Nyanzvi dzemagetsi dzakawanda dzinofunga kuti mafuse midziyo yekudzivirira yekare, nepo maDC circuit breakers midziyo yekudzivirira yepamusoro. Pfungwa iyi yakarurama here?

Zvinogona kuonekwa kuti nguva-current characteristic characteristic characteristic curve yefuse iri pedyo necharacteristic analysis curve yekugona kudzidza thermal endurance ye protected working circuit, zvichiratidza kuti ine simba rekudzivirira overload, asi kushandiswa kwayo hakusi nyore seDC circuit breaker. Kana DC circuit breaker ikadonha nekuda kwe overcurrent, inogona kuvharwa kuti ipe simba mushure mekugadzirisa matambudziko, zviri nyore kwazvo uye zviri nyore. Fuse inofanira kutsiviwa nenguva necharacteristic yakafanana nefuse, izvo zvinodikanwa kupa zvikamu zvakasiyana-siyana zvine specifications dzakasiyana, izvo zvinounza matambudziko akawanda kumushandisi.

Waya dzefuse dzinofanirawo kutariswa zvakanyanya. Semuenzaniso, terminal yepakati yefuse yescrew inofanira kubatanidzwa kudivi remagetsi, uye terminal yescrew inofanira kubatanidzwa kudivi remutoro. Kana zvisina kudaro, zviri nyore kukonzera tsaona yemagetsi kana fuse ikatsiviwa.

Zvisinei, pari zvino, mukugadzirwa kwezvakatipoteredza munyika yedu, mamwe mabhizinesi ekugadzira mafekitori, zvivako zvemahofisi nedzimwe nzira dzekugovera magetsi dzinotungamirirwa nenyanzvi dzemagetsi dzinoshandisa otomatiki (vashandi veBA4 neBA5, ona Appendix C) dzinoshandisa maDC circuit breakers. Vashoma vanoda kushandisa mafuse, asi mune dzimwe nyika dzakabudirira mune zveupfumi, kushandiswa kwemhando mbiri idzi dzemidziyo yemagetsi kunosvika hafu.

Sezvatinoziva tese, mutengo weDC circuit breaker wakakwira zvikuru kana tichienzanisa nehukuru hwemutsetse mukuru, nepo fuse ine ratio current diki se30 inogona kudzima nyore nyore short-circuit current yemakiromita makumi mashanu, uye mutengo wekutsiva fuse wakaganhurirwa. Pamusoro pezvo, mushure mekudzima DC circuit breaker, blocking capacity yecontacts inoramba isina kuchinja mushure mekutsiva neimwe itsva. Panyaya iyi, zvingave zvakachengeteka kutema short circuit nefuse.

Pamusoro pezvo, kana musiyano wehuwandu hwemagetsi efuse yega yega zvichienderana nechiyero chechigadzirwa (kureva, huwandu hwemagetsi husingasanganisike If huri 1.25in, uye huwandu hwemagetsi husingasanganisike If huri 1.6in) huri 1.6 ka, chiyero chechigadzirwa chinotsanangura mazinga ese emafuse. Kusarudza kwayo kunogona kuvimbiswa kana ikashandiswa sekudzivirira overload, asi zvakaoma kuwana DC circuit breakers. Nemamwe mazwi, mafuse ane sarudzo iri nani pakati pemazinga ekudzivirira overload, izvo zvinogona kuderedza pamusoro pekutadza kwesimba panguva yekudzivirira overload.