Isifunda sangaphakathi se-transformer ngokuyinhloko sakhiwe ama-windings (okubizwa nangokuthi amakhoyili), axhunywe ngokuqondile kugridi yamandla yangaphandle futhi ayingxenye eyinhloko ye-transformer. Isifunda sangaphakathi se-transformer ngokuvamile senziwe ngama-wire windings. Izintambo zethusi kanye aluminium izintambo zihlukaniswe zibe izintambo eziyindilinga, izintambo eziyisicaba (ziphinde zihlukaniswe zibe izintambo ezilodwa, izintambo ezihlangene kanye nezintambo eziguquguqukayo), ama-conductor we-foil, njll ngokusho kokuma kwe-cross-sectional yezintambo. Izintambo zimbozwe ngezinhlobo ezahlukene zokufakelwa. ungqimba, futhi ekugcineni wakhe ikhoyili iyonke. Ngakho-ke, izinto eziyinhloko zomqhubi wesifunda se-transformer ziyi ithusi kanye ne-aluminium.

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3.1 Ukuqhathaniswa kwezakhiwo ze ithusi kanye ne-aluminium

Kokubili ithusi ne-aluminium yizinto zensimbi ezine-conductivity kagesi enhle, futhi amakhondatha avame ukusetshenziswa ekwenzeni amakhoyili e-transformer. Umehluko wezakhiwo ezibonakalayo uboniswa kulelithebula elilandelayo:

Ithebula 1 Ukuqhathaniswa kwezakhiwo ezibonakalayo zethusi ne-aluminium

isithombe

3.2 Ukuqhathaniswa kokusebenza kwezintambo zethusi ne-aluminium kumawinding e-transformer

Umehluko phakathi kwama-copper kanye ne-aluminium transformers nawo unqunywa umehluko wezinto ezibonakalayo, obonakala kulezi zici ezilandelayo:

1) I-resistivity ye-copper conductor cishe i-60% kuphela yaleyo ye-aluminium conductor. Ukuze kuzuzwe ukulahlekelwa okufanayo kanye nezidingo zokukhuphuka kwezinga lokushisa, indawo ye-cross-sectional ye-aluminium conductor ezosetshenziswa ingaphezu kuka-60% enkulu kuneyomqhubi wethusi, ngakho-ke umthamo ofanayo kanye nemingcele efanayo Ngaphansi kwezimo ezijwayelekile, I-aluminium conductor transformer ngokuvamile inkulu kune-conductor conductor yethusi, kodwa ngalesi sikhathi indawo yokushisa ukushisa kwe-transformer nayo iyanda, ngakho-ke izinga lokushisa layo likhuphuka emafutheni liphansi;

2) Ubuningi be-aluminium cishe bungama-30% kuphela wethusi, ngakho-ke i-aluminium conductor distribution transformer ilula kune-copper conductor distribution transformer;

3) Indawo yokuncibilika yabaqhubi be-aluminium iphansi kakhulu kunaleyo yamakhondatha ethusi, ngakho-ke umkhawulo wayo wokukhuphuka kwezinga lokushisa ngesikhathi se-short-circuit current ingu-250 ° C, ephansi kunaleyo yamakhondaktha ethusi ku-350 ° C, ngakho-ke ukuminyana komklamo wayo iphansi kunaleyo yabaqhubi bethusi, futhi indawo ye-cross-sectional yezintambo ze-transformer inkulu. Inkulu, ngakho-ke ivolumu nayo inkulu kune-conductor transformer yethusi;

I-4) Ubunzima bomqhubi we-aluminium buphansi, ngakho-ke ama-burrs ayo angaphezulu kulula ukuqeda, ngakho-ke ngemva kokwenziwa kwe-transformer, amathuba okuba i-inter-turn noma i-inter-layer short circuit ebangelwa ama-burrs ayancipha;

5) Ngenxa yokuqina okuphansi namandla acindezelayo namandla angenamandla emishini kakhondatha we-aluminium, umthamo wesifunda esifushane we-aluminium conductor transformer awumuhle njengalowo we-copper conductor transformer. Lapho ubala ukuzinza okunamandla, ukucindezeleka komqhubi we-aluminium kufanele kube ngaphansi kuka-450kg / cm2, kuyilapho umqhubi wethusi Umkhawulo wokucindezeleka we-conductor ngu-1600kg / cm2, futhi umthamo wokuthwala uthuthukiswa kakhulu;

I-6) Inqubo yokushisela phakathi komqhubi we-aluminium kanye nomqhubi wethusi impofu, futhi ikhwalithi ye-welding ye-joint akulula ukuqinisekiswa, okuthinta ukuthembeka komqhubi we-aluminium ngezinga elithile.

7) Ukushisa okuqondile komqhubi we-aluminium kungu-239% walokho komqhubi wethusi, kodwa uma kucatshangelwa umehluko phakathi kokuminyana kanye nokuminyana kukagesi okuklama kokubili, umehluko wangempela phakathi kwezimo ezishisayo zesikhathi sokubili awumkhulu kangako. njengomehluko othile wokushisa. Umthamo wesikhashana wokulayisha ngokweqile wama-transformer ohlobo olomile unomphumela omncane.