ICanwin iyiNkampani Yokuguqula Amandla Kagesi & Umkhiqizi Wesiguquli Kagesi
Ulimi
ICanwin iyiNkampani Yokuguqula Amandla Kagesi & Umkhiqizi Wesiguquli Kagesi
Umthamo wamanje wokuphuka wesifunda esifushane we-low-voltage side circuit breaker ye-transformer yokusabalalisa mancane kakhulu; umthelela we-thermal stability current wekhebula awuqinisekiswanga ohlelweni lokusabalalisa i-low-voltage, okuholela endaweni encane ye-cross-sectional yezinye izintambo zesifunda sokusabalalisa ohlelweni lokusabalalisa lwamandla aphansi.
Njengoba idatha yomthamo wesekethe emfishane yesistimu kanye nokuvinjwa kwesekethe emfishane idinga ukuhlinzekwa umnyango wokuphakelwa kukagesi, idizayini kagesi yamaphrojekthi amaningi wokwakha ayenzi izibalo ezinembile zamanje zesiyingi esifushane njengamanje.
Indlela elungile: Bala i-short-circuit current yohlangothi lwe-low-voltage yama-transformer wamandla ahlukene wephrojekthi ngayinye, okuhlanganisa okungenani inani eliphakeme le-short-circuit current: ip
I-RMS Yamanje Yesiyingi Esifushane Yesifunda: Ik
Lapho ukhetha i-circuit breaker, okungenani umthamo wokugcina wokuphulwa kwe-short-circuit breaker we-circuit breaker kufanele uqinisekiswe:Icu
Hhayi ngaphansi kokuthi: Ik
Kuphrojekthi ngayinye, ikhebula elinendawo encane ephambanayo kanye nendlela emfushane kufanele kukhethwe ukuqinisekiswa kokuqina kokushisa kwamanje kwesiyingi esifushane, futhi indawo yokulayisha enendlela ende yokusabalalisa kufanele ikhethwe ukuze kuhlaziywe ukwehla kwamandla kagesi. Uma indawo ephambanayo yekhebula ingahlangabezani nezidingo, indawo enqamula ingxenye yekhebula kufanele ilungiswe.
Ngaphansi kwesimo sokuthi umthamo wesistimu awunamkhawulo, imingcele yamanje yesekethe ekuphumeni kohlangothi lwe-low-voltage ye-transformer ehambisana namandla ahlukene kanye nemingcele ye-voltage ye-impedance yesifunda esifushane kufanele ibe mkhulu kunomthamo wesifunda esifushane wephrojekthi yangempela. umthamo wayo we-short-circuit yesistimu awunamkhawulo. Ingasetshenziselwa ukuhlola ukusatshalaliswa kwe-voltage ephansi. Umthamo wokuphuka we-breaker circuit kagesi.
Esinye isibonelo, singabonakala kuthebula lokukhetha lekhebula le-short-circuit current yezintambo ze-XLPE eziwumgogodla we-copper low-voltage ukuthi kuma-transformer angu-1000kVA nangaphansi, indawo ephambanayo yekhebula lokusabalalisa ebhasini eline-voltage ephansi akufanele. ube ngaphansi kuka-10mm2; kuma-transformer angaphezu kuka-1000kVA, Indawo ephambanayo yekhebula yokusabalalisa akufanele ibe ngaphansi kuka-16mm2.
Kumaphrojekthi wokwakha omphakathi amakhulu noma abalulekile, ukubalwa kwamanje kwesekethe emfishane kuyatuswa lapho i-short-circuit current inethonya elikhulu ekukhetheni imishini.
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