Kodi Earth Leakage Circuit Breaker (ELCB) ndi Ntchito Yake ndi chiyani?

Zida zowonera ma voltages, zomwe tsopano zimasinthidwa ndi zida zamakono (RCD/RCCB). Nthawi zambiri, zida zowonera zamakono zimatchedwa RCCB, ndi zida zowunikira magetsi zotchedwa Earth Leakage Circuit Breaker (ELCB). Zaka makumi anayi zapitazo, ma ECLB oyambirira amakono adayambitsidwa ndipo pafupifupi zaka makumi asanu ndi limodzi zapitazo magetsi oyambirira a ECLB adayambitsidwa. Kwa zaka zingapo, ma ELCB onse omwe amagwiritsa ntchito magetsi komanso omwe akugwiritsidwa ntchito pano amatchedwa ELCBs chifukwa cha dzina lawo losavuta kukumbukira. Koma kugwiritsa ntchito zida ziwirizi kunapereka kukula kwa kusakanikirana kwakukulu mumakampani amagetsi.

Kodi Earth Leakage Circuit Breaker (ELCB) ndi chiyani?

ECLB ndi mtundu umodzi wa chipangizo chachitetezo chomwe chimagwiritsidwa ntchito poyika chipangizo chamagetsi chokhala ndi vuto lalikulu padziko lapansi kuti zisagwedezeke. Zipangizozi zimazindikira ma voltages ang'onoang'ono osokera a chipangizo chamagetsi pamipanda yachitsulo ndikulowetsa dera ngati voteji yowopsa izindikirika. Cholinga chachikulu cha Earth leakage circuit breaker (ECLB) ndikuletsa kuwonongeka kwa anthu ndi nyama chifukwa cha kugwedezeka kwamagetsi.

ELCB ndi mtundu wina wa latching relay yomwe ili ndi mphamvu zama mains omwe akubwera omwe amalumikizidwa ndi ma switch ake kuti wophwanya dera atseke magetsi pamalo osatetezeka. Bungwe la ELCB limazindikira mafunde olakwika a anthu kapena nyama kupita ku waya wapadziko lapansi mogwirizana ndi momwe amatetezera. Ngati magetsi okwanira akuwoneka pa coil ya ELCB, imayimitsa mphamvuyo, ndikukhalabe yozimitsa mpaka itakonzanso pamanja. ELCB yozindikira mphamvu yamagetsi sizindikira mafunde olakwika kuchokera kwa anthu kapena nyama kupita kudziko lapansi.

Bungwe la ELCB limazindikira mafunde olakwika a anthu kapena nyama kupita ku waya wapadziko lapansi mogwirizana ndi momwe amatetezera. Ngati magetsi okwanira akuwoneka pa coil ya ELCB, imayimitsa mphamvuyo, ndikukhalabe yozimitsa mpaka itakonzanso pamanja. ELCB yozindikira mphamvu yamagetsi sizindikira mafunde olakwika kuchokera kwa anthu kapena nyama kupita kudziko lapansi.

Bungwe la ELCB limazindikira mafunde olakwika a anthu kapena nyama kupita ku waya wapadziko lapansi mogwirizana ndi momwe amatetezera. Ngati magetsi okwanira akuwoneka pa coil ya ELCB, imayimitsa mphamvuyo, ndikukhalabe yozimitsa mpaka itakonzanso pamanja. ELCB yozindikira mphamvu yamagetsi sizindikira mafunde olakwika kuchokera kwa anthu kapena nyama kupita kudziko lapansi.

Ntchito ya ELCB

Ntchito yayikulu ya Earth-leakage circuit breaker kapena ELCB ndikuletsa kugwedezeka pomwe kuyika magetsi kudzera pa Earth impedance chifukwa ndi chitetezo. Wowononga dera uyu amazindikira mayendedwe ang'onoang'ono osokera pamwamba pa zida zamagetsi zokhala ndi chitsulo chotchinga & kumasokoneza dera ngati mphamvu yowopsa izindikirika. Cholinga chachikulu cha ma ELCB ndikupewa kuvulaza anthu komanso nyama chifukwa cha kugwedezeka kwamagetsi.

ELCB ntchito
Chowotcha magetsi ndi mtundu wina wa latching relay ndipo chimakhala ndi mains anyumba omwe amalumikizidwa nthawi yonse yolumikizirana ndi ma switch kuti wowonongayo atsegule mphamvu ikangodziwika kuti kutayikira kwa dziko lapansi. Pogwiritsa ntchito izi, mphamvu yamagetsi imatha kuzindikirika kuchokera kumoyo kupita ku waya wapansi pamiyezo yomwe imateteza. Ngati voteji yokwanira ituluka pa coil yamagetsi yamagetsi, ndiye kuti imatseka mphamvuyo ndikuzimitsa mpaka kukonzanso thupi. ELCB yomwe imagwiritsidwa ntchito pozindikira magetsi samazindikira mafunde olakwika.

Momwe Mungalumikizire Earth Leakage Circuit Breaker

Dera la dziko lapansi limasinthidwa pamene ELCB imagwiritsidwa ntchito; Kulumikizana ndi ndodo yapadziko lapansi kumavomerezedwa kudzera mu chowotcha chapadziko lapansi chodutsira polumikizana ndi ma terminals ake awiri apadziko lapansi. Mmodzi amapita koyenera dziko lapansi woyendetsa zotetezera (CPC), ndi wina ku ndodo ya dziko lapansi kapena mtundu wina wa kugwirizana kwa dziko lapansi. Chifukwa chake kuzungulira kwapadziko lapansi kumalola kudzera mu coil ya ELCB.

Ubwino wa Voltage Operated ELCB

Ma ELCB sakhudzidwa kwambiri ndi zolakwika komanso amakhala ndi maulendo ochepa ovutitsa.
Ngakhale kuti magetsi ndi magetsi pamtunda wapansi nthawi zambiri zimakhala zolakwika kuchokera pawaya wamoyo, izi sizili choncho nthawi zonse, kotero pali mikhalidwe yomwe ELCB imatha ulendo wokhumudwitsa.
Kuyika kwa chida chamagetsi kukakhala ndi zolumikizira ziwiri padziko lapansi, mphezi yapafupi ndi mphezi yamphamvu kwambiri idzazula mphamvu yamagetsi padziko lapansi, ndikupatsa mphamvu ya ELCB yokhala ndi voteji yokwanira kuti ifike paulendo.
Ngati mawaya ena a dothi achotsedwa ku ELCB, sichidzayikidwanso nthawi zambiri sichidzayikidwanso moyenera.
Ma ELCB awa ndiye kufunikira kwa kulumikizana kwachiwiri komanso mwayi woti kulumikizana kwina kulikonse pansi pa dongosolo lomwe laopsezedwa kungathe kuyimitsa chowunikiracho.