Hafi ya voltage bushing

Bushing-voltage isobanura igikoresho cyemerera umuyoboro umwe cyangwa benshi kunyura mubice nkurukuta cyangwa agasanduku ko kubika no gushyigikirwa, kandi nigikoresho cyingenzi muri sisitemu yamashanyarazi.Mubikorwa byo gukora, gutwara no gufata neza, amashanyarazi menshi ashobora kuba afite inenge zihishe kubera impamvu zitandukanye;mugihe cyigihe kirekire, bagerwaho ningaruka zumuriro wamashanyarazi no gushyushya imiyoboro, kwangirika kwimashini no kwangirika kwimiti, hamwe nikirere.Hazabaho kandi inenge buhoro buhoro.

Amashanyarazi menshi yumuriro akoreshwa cyane cyane mugukwirakwiza ubutaka bwumurongo winjira kandi usohoka wibikoresho byamashanyarazi nka transformateur, reaction, na break break, hamwe numuyoboro mwinshi uca murukuta.Hariho ubwoko butatu bwamashanyarazi menshi: bushing imwe ya dielectric bushing, compte dielectric bushing hamwe na capacitive bushing.Ubwishingizi bwibanze bwa busitif bushing bugizwe na coaxial silindrical series capacitor bank yakozwe no guhinduranya ibikoresho byiziritse hamwe na electrode yicyuma gisimburana ku nkoni iyobora.Ukurikije ibikoresho bitandukanye byerekana, bigabanijwemo impapuro zometseho amavuta hamwe nimpapuro zisize amavuta capacitive bushing.110kV no hejuru ya transformateur hejuru ya voltage bushing ni amavuta-impapuroubwoko bwa capacitor;Igizwe nogukoresha insinga, akabati yo kubika amavuta, amaboko yo hejuru ya farashi, amaboko yo hepfo ya farashi, intoki ya capacitor, inkoni iyobora, kubika amavuta, flange, numupira wumuvuduko.

Mugihe cyo gukora amashanyarazi menshi cyane, insulasiyo nyamukuru igomba kwihanganira ingufu nyinshi, kandi igice kiyobora kigomba gutwara amashanyarazi manini.Amakosa nyamukuru ni uguhuza kwihuza imbere n’imbere y’amashanyarazi, gutonyanga no kwangirika kw’ibihuru, kubura amavuta mu gihuru, gusohora igice cya capacitori no gusohora ecran ya nyuma hasi, nibindi.

Transformer bushing nigikoresho gisohoka kiyobora insinga nini ya voltage yumurongo wa transformateur uzunguruka hanze yikigega cya peteroli, kandi ikora nkigice cyogutwara hamwe nubutaka.Mugihe cyimikorere ya transformateur, imizigo yimitwaro inyura mugihe kirekire, kandi imiyoboro ngufi-nyabagendwa inyura mugihe umuzunguruko mugufi ubaye hanze ya transformateur.

Kubwibyo, transformateur bushing ifite ibisabwa bikurikira:

Ugomba kuba wagaragaje imbaraga z'amashanyarazi n'imbaraga zihagije;

Igomba kugira ubushyuhe bwiza kandi ikabasha kwihanganira ubushyuhe bwihuse mugihe gito-kizunguruka;ntoya mumiterere, ntoya mubwinshi, nibyiza mugukora kashe.

Ibyiciro

Amashanyarazi menshi arashobora kugabanywamo amavuta yuzuye ibihuru hamwe na capacitive bushings.

Umugoziimpapuromuri peteroli yuzuye amavuta asa na plaque ingana muri capacitive bushing.Ubushobozi bwa capacitori muri capacitive bushing nuruhererekane rwa capacitori ya silindrike ya coaxial, kandi muri bushing yuzuyemo amavuta, dielectric ihoraho yimpapuro zikora iziruta iz'amavuta, zishobora kugabanya imbaraga zumurima uhari.

Amavuta yuzuye ibihuru arashobora kugabanywamo icyuho cyamavuta hamwe nigituba cyamavuta menshi, kandi ubushobozi bwa capacitive bushing bushobora kugabanywa mumashanyarazi hamwe namavuta.

Amaboko akoreshwa mugihe imiyoboro itwara ibintu ikeneye kunyura mubyuma cyangwa kurukuta kubishobora bitandukanye.Ukurikije iki gihe gikurikizwa, ibihuru birashobora kugabanywamo ibihuru bya transformateur, ibihuru byo guhinduranya cyangwa ibikoresho by’amashanyarazi hamwe, hamwe n’urukuta.Kuri iyi "plug-in" gahunda ya electrode, umurima wamashanyarazi wibanze cyane kumpera ya electrode yo hanze (nka flange yo hagati ya bushing), aho gusohora akenshi bitangirira.

Imikoreshereze n'ibiranga ikariso

Amashanyarazi menshi cyane akoreshwa kubatwara amashanyarazi menshi kugirango banyure mubice bifite ubushobozi butandukanye (nkurukuta hamwe nicyuma cyibikoresho byamashanyarazi) kugirango bakingire kandi bashyigikire.Bitewe no gukwirakwiza kutaringaniye umurima wamashanyarazi mugihuru, cyane cyane umurima wamashanyarazi wibanze kumpera ya flange yo hagati, biroroshye gutera hejuru kunyerera.Imiterere yimbere yimbere ya bushing hamwe nurwego rwinshi rwa voltage iraruhije, akenshi ikoresha ibikoresho bifatanyiriza hamwe, kandi hariho ibibazo nko gusohora igice.Kubwibyo, ikizamini nigenzura ryikariso bigomba gushimangirwa.