Choswa Circuit Chachikulu vs. Choswa Circuit Cha Nthambi: Logic of Upper-Lower Level Coordination

Mu dongosolo logawa mphamvu, ma circuit breaker amagwira ntchito ngati zida zotetezera chitetezo cha ma circuit ndikuteteza ku zovuta zochulukirapo komanso zafupikitsa ma circuit. Kugwirizana pakati pa main circuit breaker ndi ma branch circuit breaker kumatsimikizira mwachindunji kukhazikika kwa dongosolo logawa komanso kumveka bwino kwa kukonza zolakwika. Nkhaniyi ikufotokoza mwachidule malo awo oyambira ndikugawa mfundo zawo zogwirizanitsa, kuthandiza akatswiri ndi ogula kumvetsetsa mwachangu mfundo zazikulu.

Kufotokozera matanthauzo ofunikira ndi malo a ziwirizi ndikofunikira kwambiri kuti timvetsetse mfundo yogwirizanitsa:

1.Chotsekera chachikulu cha dera, yomwe imadziwikanso kuti main breaker, imayikidwa pa trunk line ya system yogawa magetsi. Imawongolera momwe magetsi amayatsira/kuzima pa system yonse yogawa magetsi ndipo imatenga udindo woteteza system yonse ku zovuta zazikulu komanso za short-circuit, zomwe zimagwira ntchito ngati "chipata chachikulu" cha system yogawa magetsi chomwe chingachepetse mphamvu ya system yonse.

2.Chotsekera dera la nthambiimayikidwa pa mzere uliwonse wa nthambi, mogwirizana ndi ma circuits enieni amagetsi monga magetsi, masoketi ndi zida zamagetsi. Imawongolera kuyatsa/kuzima kwa nthambi imodzi ndikuteteza chitetezo cha magetsi cha nthambi yomwe ili, yomwe imagwira ntchito ngati "chipata cha nthambi" cha makina ogawa.

Mfundo yaikulu ya mgwirizano wawo wa pamwamba ndi pansi ndichitetezo chapamwamba komanso kupunthwa kosankhidwa, zomwe zimaletsa kukula kwa zolakwika.

●Pamene vuto la overload kapena short-circuit lichitika mu nthambi, branch circuit breaker idzachitapo kanthu mwachisawawa podula magetsi a nthambi yolakwika nthawi yake, pomwe circuit breaker yayikulu ikugwirabe ntchito bwino kuti nthambi zina zisakhudzidwe ndipo magetsi akupitirira, kukwaniritsa cholinga cha "nthambi yolakwika yokha ndiyo imayatsidwa".

●Pakakhala vuto lalikulu (monga njira yofupikitsira chingwe cha trunk) zomwe sizingathe kuchotsedwa ndi choswa dera la nthambi, choswa dera chachikulu chidzayambitsa ntchito yake yoteteza kuti chichepetse mphamvu ya dongosolo lonse logawa, kuteteza vutolo kuti lisafalikire ku dera lonse ndikupangitsa kutayika kwakukulu.

Kuphatikiza apo, mfundo yogwirizanitsa iyenera kukwaniritsa zofunikira zamakhalidwe ofanana a ntchito: nthawi yoti breaker igwe ndi nthawi yogwira ntchito ya breaker yaikulu ikhale yayikulu kuposa ya breaker ya nthambi, kuonetsetsa kuti breaker ya nthambi iyamba kugwira ntchito ndipo breaker yayikulu ikhala ngati chitetezo chothandizira ngati pakhala vuto, kupewa vuto losamveka bwino loti breaker yayikulu igwe kaye ndipo nthambi zonse zitataya mphamvu nthawi imodzi.

Mwachidule, kugwirizana kotereku kwa magawo apamwamba ndi otsika sikuti kumangotsimikizira chitetezo cha mphamvu ya nthambi imodzi yokha, komanso kumasunga kukhazikika kwa dongosolo lonse logawa mphamvu, lomwe ndi mfundo yofunika kwambiri pakupanga ndi kugwiritsa ntchito makina ogawa.