ICanwin iyiNkampani Yokuguqula Amandla Kagesi & Umkhiqizi Wesiguquli Kagesi
Ulimi
ICanwin iyiNkampani Yokuguqula Amandla Kagesi & Umkhiqizi Wesiguquli Kagesi
Izizathu zokuhlolwa komthelela wama-transformer amasha noma ama-transformer ngemuva kokulungiswa kabusha ngaphambi kokuthi ziqale ukusebenza ngokusemthethweni yilezi ezilandelayo:
(1) Hlola ukufakwa kwe-transformer namasekhethi ayo ukuze uthole ubuthakathaka noma amaphutha. Lapho i-no-load transformer idonswa ngaphandle, kungenzeka ukukhiqiza ama-overvoltages okusebenza. Lapho iphuzu elingathathi hlangothi lesistimu yamandla lingagxiliwe noma lisekelwe ngekhoyili yokucindezela i-arc, i-amplitude ye-overvoltage ingafinyelela izikhathi ezingu-4-4.5 ze-voltage yesigaba; lapho iphuzu elingathathi hlangothi lisekelwe ngokuqondile, i-overvoltage amplitude ingafinyelela izikhathi ezingu-3 i-voltage yesigaba. Ukuze uhlole ukuthi amandla okufakelwa kwe-transformer angakwazi yini ukumelana nomphumela we-voltage egcwele noma i-overvoltage yokusebenza, kuyadingeka ukwenza ukuhlolwa okugcwele kwe-voltage okungenamthwalo ngaphambi kokuba i-transformer isebenze. Uma i-transformer kanye namasekhethi ayo anobuthakathaka bokufakelwa, azovezwa ekuqhekekeni kwe-overvoltage yokusebenza.
(2) Hlola ukuthi ukuvikela okuhlukile kwe-transformer kungasebenzi kahle. Uma i-no-load transformer ivuliwe, i-inrush current izokhiqizwa, futhi inani layo lingafinyelela izikhathi ezingu-6-8 zamanje ezilinganiselwe. I-magnetizing inrush current iqala ukuncipha ngokushesha, ngokuvamile ingancishiswa ibe izikhathi ezingu-0.25-0.5 kuneyamanje elinganiselwe ngemva kuka-0.5-1s, kodwa kuthatha isikhathi eside ukuthi konke ukuncishiswa kuqedwe, cishe imizuzwana embalwa kosayizi omncane naphakathi. ama-transformers, kanye nama-10-20s ama-transformers amakhulu, ngakho-ke i-magnetizing inrush yamanje inciphisa Esigabeni sokuqala, ukuvikelwa okuhlukile kuvame ukungasebenzi kahle, okubangela ukuthi i-transformer ingakwazi ukufakwa ekusebenzeni. Ngakho-ke, lapho kuvalwa umthelela ongenamthwalo, ngaphansi kwesenzo se-excitation inrush current, izintambo, izici kanye nokusetha kokuvikela okuhlukile kungabhekwa ngempela, futhi ukuhlolwa nesiphetho sokuthi ukuvikela kungasetshenziswa yini. eyenziwe.
(3) Hlola amandla omshini we-transformer. Njengoba i-excitation inrush current ikhiqiza inani elikhulu lamandla kagesi, ukuze kuhlolwe amandla omshini we-transformer, ukuhlolwa komthelela ongekho umthwalo kuyadingeka.
Ngokwemithethonqubo, inani lokuhlolwa komthelela we-voltage ongalayishiwe ngokugcwele kufanele libe nomthelela ngokuqhubekayo izikhathi ezi-5 lapho kufakwa imikhiqizo emisha; ngemuva kokulungiswa, kufanele kuthinteke ngokuqhubekayo izikhathi ezi-3. Isikhawu phakathi komthelela ngamunye asikho ngaphansi kwemizuzu emi-5. Ngaphambi kokusebenza, othile kufanele athunyelwe kusayithi ukuze aqaphe i-transformer ukuze ahlole ukuthi kukhona yini okungavamile ku-transformer. Uma kukhona okungavamile, ukuhlinzwa kufanele kumiswe ngokushesha.
Ngemuva komthelela wokuqala, kufanele iqhubeke isebenza ngaphezu kwemizuzu eyi-10, futhi umthelela olandelayo kufanele ulinde ngaphezu kwemizuzu emi-5 ngaphambi komthelela olandelayo. Ngokuqondene nokuthi kungani isethelwe izikhathi ezi-5, ibalulwe eziqondisweni, futhi isilinganiso esithile isiphetho esithathwe ekucatshangelweni okuphelele kwamandla emishini, ukugcwala ngokweqile kanye ne-excitation inrush current.
