Kungani I-DC Circuit Protection Iba Ibalulekile Ngekusasa Lezinhlelo Zamandla?

Imboni yamandla emhlabeni wonke iya ngokuya incike kumanje oqondile. Ama-solar photovoltaic array, amasistimu okugcina amandla ebhethri, iziteshi zokushaja izimoto zikagesi, izinto zokuxhumana ngocingo, nezikhungo zedatha konke kuqukethe izingxenye ezibalulekile ze-DC. Njengoba lezi zinhlelo zokusebenza zikhula, ukuvikelwa kwesekethe kuyasuka engxenyeni esekelayo kuya engxenyeni emaphakathi yokuphepha kwesistimu. AI-I-DC circuit breakerkufanele inqamule amandla asetshenziswayo ngokushesha nangokuphepha, ikhawulele ukulimala kwezintambo, iziguquli, amabhethri, nezinto zokusebenza ezixhunyiwe.

Ukuphazamisa i-DC kuhlukile ngokobuchwepheshe ekuphazamiseni i-AC. Kumjikelezo we-AC, okwamanje ngokwemvelo yeqa uziro izikhathi eziningi ngomzuzwana, okusiza ukucisha i-arc kagesi. I-DC ayinakho ukuwela uziro wemvelo, ngakho-ke i-arc ingahlala izinzile ngemva kokwehlukana koxhumana nabo. Ngakho-ke izinqamuli ezidizayinelwe i-DC zidinga izakhiwo zokuxhumana ezifanele, ama-arc chute, ukuhlelwa kokuvunguza kazibuthe, amabanga okushisa, nokucushwa kwezintambo. I-AC breaker akumele kuthiwe ifanele isevisi ye-DC ngenxa yokuthi isilinganiso sayo samanje sibonakala sanele.

Enye inkambiso ecacile yemboni ukuqhubekela phambili kuma-voltage aphezulu wesistimu kanye nokuminyana okukhulu kwamandla. I-voltage ye-DC ephezulu inganciphisa amandla wamanje kumandla adluliswayo afanayo, isize ukulahleka kwe-conductor ephansi kanye nezidingo zekhebula. Kodwa-ke, futhi kwenza ukuxhumana kwe-insulation kanye nokuphazamiseka kwe-arc kufuneke kakhulu. Ukukhethwa komkhiqizo kufanele kucabangele ugesi olinganiselwe wokusebenza, wamanje okaliwe, inani lezigxobo, umthamo wokuphuka kwesiyingi esifushane, indawo oyisebenzisayo, kanye nendlela yokuxhuma ecacisiwe yomkhiqizi. Izidingo ze-polarity zibaluleke kakhulu kweminye imiklamo ye-DC breaker.

Omunye umkhuba uwukuxhumana okuseduze phakathi kwama-breaker nokuqapha ngogesi. Amasistimu wamandla esimanje aya ngokuya esebenzisa izinzwa, izilawuli, namanethiwekhi okuxhumana ukuze ahlonze ukushisa ngokweqile, ukugcwala kakhulu, amaphutha okufaka izinto, namaphethini okusebenza angajwayelekile. Ukuvikelwa kwemishini kuhlala kubalulekile, kodwa kuba yingxenye yezakhiwo zokuvikela ezibanzi ezingase zihlanganise ama-fuse, izisetshenziswa zokuvikela ezihlinzayo, abathintwayo, izisetshenziswa zokuqapha ukuhlukanisa, nezinhlelo zokuphatha ibhethri. Ukukhetha phakathi kwamadivayisi akhuphuka nomfula kanye nawo athola ukunakwa okwengeziwe ngenxa yokuthi ukuvala shaqa okungadingekile kungathinta yonke intambo yelanga, indawo yokugcina izinto, ikhabethe lokushaja, noma inqubo yezimboni.

I-DAM3DC-250 ekhonjiswe nguI-I-Shanghai Dada Electricibonisa uhlobo lwe-DC breaker enekesi elibunjiwe elisetshenziswa ekusabalaliseni okuphezulu kwamanje. Ukucaciswa okubonakalayo kubonisa amandla amanje alinganiselwe angu-250 A, i-DC elinganiselwe i-voltage engu-1000 V, amandla okuphuka angu-20 kA, kanye nomklamo wezigxobo ezimbili. Lawa manani achaza ububanzi obuhlosiwe kagesi; azinqumi ngokwazo ukufaneleka kukho konke ukufakwa. Onjiniyela kusafanele baqinisekise izinga langempela le-short-circuit, usayizi we-conductor, izinga lokushisa le-ambient, izimo zendawo ebiyelwe, izici zomthwalo, ukuphakama kokufakwa, amazinga asebenzayo, nokuxhumana okudingekile kokuvikela.

Kubasebenzisi bokugcina, ukulebula okucacile namadokhumenti kubaluleke ngokulinganayo, ngoba ukufakwa okulungile, ukulungiswa, nezinqumo zokushintsha zincike ekwazini izilinganiso eziqinisekisiwe zedivayisi kanye nemikhawulo kusevisi.

Uma ubheka phambili, abathengi bazogcizelela kakhulu ukuqinisekiswa okuqondene nohlelo lokusebenza kunokukhetha amadivayisi ngokulinganisa kwamanje kuphela. Ukuvikela okuthembekile kwe-DC kuncike ekufaniseni amandla kagesi okulungile, amandla okuphazamisa okwanele, ukumiswa kwesigxobo esifanele, ukufakwa okulawulwayo, nokuhlolwa ngezikhathi ezithile. Njengoba isizukulwane esivuselelekayo, ukugcinwa, kanye nezokuthutha ezifakwe ugesi ziqhubeka nokuthuthuka, ukuqonda lezi zisekelo kuzosiza abaklami besistimu behlise ubungozi futhi bakhe amanethiwekhi e-DC athembeke kakhulu.