Iphuzu elikhanyayo nendawo abilayo kawoyela we-transformer
Okuqukethwe
Izakhiwo ezijwayelekile kanye nemisebenzi kawoyela we-transformer
Amafutha kumele abe nalezi zimpawu ezilandelayo:
- Izici ezinhle kakhulu ze-dielectric eziqinisekisa ukulahleka kwamandla okuncane.
- Ukumelana okuphezulu, okuthuthukisa ukwahlukanisa phakathi kwama-windings.
- Iphuzu elikhanyayo eliphezulu kanye nokuzinza kokushisa ukuze kuncishiswe ukulahlekelwa kokuhwamuka.
- Impilo ende yesevisi kanye nezici ezinhle kakhulu zokuguga ngisho nangaphansi kwemithwalo eqinile kagesi.
- Ukungabi khona kwezingxenye ezinolaka ekubunjweni (ikakhulukazi isulfure), okunikeza ukuvikeleka ekugqwaleni.
Izinjongo zokufaka isicelo:
- Ukufakwa kwe-insulation phakathi kwama-windings nezinye izingxenye ze-conductive ze-transformer.
- Ukupholisa izingxenye ze-transformer.
- Ukuvinjelwa kwe-oxidation ye-cellulose kusuka ku-insulation ephepheni lephepha.
Kunezinhlobo ezimbili zamafutha e-transformer: i-naphthenic ne-paraffinic. Umehluko phakathi kwabo ufinyezwe kuthebula:
| Izinto zokuqhathanisa | Amafutha e-petroleum | Amafutha kapharafini |
| 1. | Okuqukethwe kwepharafini/ingcina ephansi | Okuqukethwe okuphezulu kukapharafini/i-wax |
| 2. | Iphuzu lokuthela lamafutha e-naphthenic liphansi kunalelo lamafutha kapharafini | Iphuzu lokuthela lamafutha kapharafini liphakeme kunalelo lamafutha e-naphthenic |
| 3. | Amafutha e-Naphthenic oxidize kalula kunamafutha kapharafini. | I-oxidation yamafutha kapharafini ingaphansi kwe-naphthenic |
| 4. | Imikhiqizo ye-oxidation iyancibilika kuwoyela | Imikhiqizo ye-oxidation ayincibiliki emafutheni |
| 5. | I-oxidation kawoyela ongahluziwe asuselwa kupharafini kubangela ukwakheka kwemvula engancibiliki okwandisa i-viscosity. Lokhu kuholela ekudlulisweni kokushisa okuncishisiwe, ukushisa ngokweqile kanye nokunciphisa impilo yesevisi. | Nakuba amafutha e-naphthenic enziwe i-oxidized kalula kunamafutha kapharafini, imikhiqizo ye-oxidation iyancibilika emafutheni. |
| 6. | Amafutha e-Naphthenic aqukethe izinhlanganisela ezinuka kamnandi ezihlala ziwuketshezi emazingeni okushisa aphansi kakhulu afinyelela ku -40°C | - |
Iphuzu elikhanyayo lamafutha e-transformer
Lesi sici simelela izinga lokushisa elincane lapho inqubo yokuhwamuka iqala khona.
Imisebenzi esemqoka kawoyela we-transformer ukufaka insulate nokupholisa i-transformer. Lawa mafutha azinzile emazingeni okushisa aphezulu futhi anezindawo ezinhle kakhulu zokuvikela ugesi. Yingakho amafutha anjalo asetshenziswa kuma-transformers ukuze ahlukanise izingxenye eziphethe amandla ngaphansi kwamandla aphezulu futhi azipholise.
Ukungabi bikho komthwalo noma ukulahlekelwa komthwalo ongakhiqizi kuvame ukukhulisa izinga lokushisa le-transformer winding kanye nokufakwa okuzungezayo. Ukwanda kwezinga lokushisa kwamafutha kungenxa yokususwa kokushisa kuma-windings.
Uma i-flash point yamafutha ingaphansi kwezinga, khona-ke uwoyela uyahwamuka, enze amagesi e-hydrocarbon ngaphakathi kwethangi le-transformer. Kulokhu, i-Buchholz edluliselwe ngokuvamile iyahamba. Kuyidivayisi yokuzivikela efakwe emiklamo eminingi yama-transformer kagesi kagesi, lapho kunikezwa khona i-oil reservoir yangaphandle.
Ibanga elijwayelekile lephoyinti elikhanyayo lamafutha e-transformer ngu-135….145°C.
Iphoyinti lokubilisa lamafutha e-transformer
Kuncike ekubunjweni kwamakhemikhali kwezingxenyana. Iphuzu elibilayo likawoyela kapharafini, elenziwe ngezingxenye ezizinzile ukuya emazingeni okushisa aphezulu, lingaba ngu-530°C. Amafutha eNaphthenic abila ku-425°C.
Ngakho-ke, lapho ukhetha ukwakheka kwemidiya yokupholisa, umuntu kufanele acabangele izimo zokusebenza ze-transformer nezici zayo zokukhiqiza, okokuqala, umjikelezo womsebenzi namandla.
