>>> Chidule Chazinthu
XGW-12 mndandanda wapanja wanzeru wosinthira masinthidwe amatengera mawonekedwe akunja amtundu wa bokosi ndipo amakhala ndi zida zamagetsi monga makabati odzaza gasi a SF6 ndi ma DTU. Chigawo chachikulu cha mphete ndi seti ya ma switchgear okwera kwambiri omwe amakhala m'bokosi lachitsulo lachitsulo kapena ophatikizidwa mu modular bay-type ring main power supply unit. Zigawo zake zazikuluzikulu zimaphatikizira ma switch switch ndi ma circuit breakers, opereka maubwino monga mawonekedwe osavuta, kakulidwe kakang'ono, mtengo wotsika, kuwongolera magawo amagetsi ndi magwiridwe antchito, komanso chitetezo chowonjezera chamagetsi. Amagwiritsidwa ntchito kwambiri m'malo ogawa komanso malo ocheperako amtundu wa bokosi m'malo onyamula katundu monga malo okhala m'matauni, nyumba zazitali, nyumba zazikulu za anthu, mafakitale, ndi mabizinesi.
Malo osinthira nthawi zambiri amapangidwa ndi mizere iwiri yolowera ndi mizere ingapo yotuluka (nthawi zambiri mizere 4 mpaka 6 yotuluka). Kutengera zofunikira zosiyanasiyana, zowononga ma circuit kapena zosinthira katundu zitha kukhazikitsidwa pamizere yomwe ikubwera ndi yotuluka. M'magulu amagetsi apakatikati, malo osinthira nthawi zambiri amagwiritsidwa ntchito polandila ndi kugawa mphamvu ya 10kV, ndipo amakhala ndi mizere yogawa yapakati-voltage yomwe ikubwera ndi yotuluka, komanso zida zogawiranso mphamvu.
Malo osinthira ndi malo opangira magetsi ndi kugawa omwe amagwiritsidwa ntchito polandila ndikugawa magetsi. M'magulu amagetsi othamanga kwambiri, amatchedwa switchyard. Makhalidwe ake ndi akuti voteji kumbali yolowera ndi yotuluka ya magetsi ndi yofanana, yomwe ili yofanana ndi kukulitsa kwa substation busbar. Ma feed amagetsi nthawi zambiri amagwiritsa ntchito zingwe zazikuluzikulu. Ikhoza kugwiritsidwa ntchito kuthetsa vuto la mizere yochepa yolowera ndi yotuluka kapena kuletsa mizere yolowera ndi yotuluka m'malo ang'onoang'ono, ndipo imathandizira pakuthandizira magetsi m'derali. Amagwiritsidwa ntchito kugawira ndi kuphatikiza mafunde olemetsa, kusokoneza mafunde afupikitsa ndi mafunde a transformer opanda katundu, ndikuyendetsa mafunde othamanga a mizere yapamwamba ndi mizere ya chingwe pamtunda wina. Imagwira ntchito ngati chida chowongolera ndi chitetezo ndipo ndi chida chofunikira chosinthira pamagetsi a looped network ndi magetsi oyambira.
Chogulitsachi chikugwirizana ndi mfundo zomwe zikugwiritsidwa ntchito: GB/T 11022-2020 "Common Technical Requirements for High-Voltage Switchgear and Controlgear Standards" ndi GB/T 3906-2006 "3.6kV to 40.5kV AC Metal-Enclosed Switchgear ndi Controlgear ya IP3".
