About high voltage bushing

High-voltage bushing imatanthawuza chipangizo chomwe chimalola kondakitala mmodzi kapena angapo kudutsa magawo monga makoma kapena mabokosi otetezera ndi chithandizo, ndipo ndi chipangizo chofunika kwambiri pamagetsi.Popanga, kuyendetsa ndi kukonza, ma bushings okwera kwambiri amatha kukhala ndi zolakwika zobisika chifukwa cha zifukwa zosiyanasiyana;pa ntchito yaitali, iwo amakhudzidwa ndi zotsatira za magetsi munda ndi kondakitala Kutentha, mawotchi kuwonongeka ndi dzimbiri mankhwala, ndi zinthu mumlengalenga.Padzakhalanso zolakwika pang'onopang'ono.

Zitsamba zamphamvu kwambiri zimagwiritsidwa ntchito makamaka pakutchingira pansi kwa mizere yolowera ndi yotuluka ya zida zamagetsi monga ma transfoma, ma reactor, ndi ma circuit breakers, ndi mabwalo okwera kwambiri odutsa makoma.Pali mitundu itatu ya ma bushings apamwamba kwambiri: bushing imodzi ya dielectric, bushing ya dielectric yophatikizika ndi capacitive bushing.The kutchinjiriza waukulu wa capacitive bushing wapangidwa ndi coaxial cylindrical mndandanda capacitor banki wopangidwa ndi mafunde wosanjikiza zosanjikiza zipangizo ndi zojambulazo zitsulo maelekitirodi alternately pa conductive ndodo.Malinga ndi zida zosiyanasiyana zotsekera, zimagawidwa kukhala pepala la chingamu ndi pepala lopaka mafuta capacitive bushing.110kV ndi pamwamba pa transformer high-voltage bushings nthawi zambiri imakhala yamafuta-pepalamtundu wa capacitor;Zimapangidwa ndi ma wiring terminals, kabati yosungiramo mafuta, manja apamwamba adothi, manja adothi apansi, capacitor core, ndodo yowongolera, mafuta oteteza, flange, ndi mpira wopondereza.

Panthawi yogwira ntchito ya high-voltage bushing, kutchinjiriza kwakukulu kuyenera kupirira voteji, ndipo gawo loyendetsa liyenera kukhala lalikulu.Zolakwitsa zazikulu ndi kulumikizidwa kosauka kwa zolumikizira zamagetsi zamkati ndi zakunja, kunyowa komanso kuwonongeka kwa kutchinjiriza kwa bushing, kusowa kwamafuta mu bushing, kutulutsa pang'ono kwa capacitor core ndi kutulutsa kwa skrini yomaliza, ndi zina zambiri.

Transformer bushing ndi chipangizo chotulukira chomwe chimatsogolera waya wothamanga kwambiri wa thiransifoma wokhotakhota kupita kunja kwa thanki yamafuta, ndipo umagwira ntchito ngati gawo lothandizira komanso kutsekereza pansi.Panthawi yogwiritsira ntchito thiransifoma, katundu wamakono amadutsa kwa nthawi yaitali, ndipo njira yachidule imadutsa pamene dera lalifupi limapezeka kunja kwa transformer.

Chifukwa chake, bushing ya transformer ili ndi zofunika izi:

Ayenera kutchula mphamvu zamagetsi ndi mphamvu zokwanira zamakina;

Iyenera kukhala ndi kukhazikika kwabwino kwa kutentha ndikutha kupirira kutenthedwa nthawi yomweyo ikafupikitsidwa;yaying'ono m'mawonekedwe, yaying'ono muunyinji, ndi yabwino pakusindikiza.

Gulu

Zitsamba zamphamvu kwambiri zimatha kugawidwa m'magulu odzaza mafuta ndi ma capacitive bushings.

Chingwepepalamu bushing wodzaza mafuta ndi ofanana ndi mbale yofananira mu capacitive bushing.Pakatikati pa capacitor mu capacitive bushing ndi mndandanda wa coaxial cylindrical capacitors, ndipo mu tchire lodzaza ndi mafuta, dielectric nthawi zonse ya pepala loyikirapo ndi yapamwamba kuposa yamafuta, yomwe imatha kuchepetsa mphamvu yakumunda kumeneko.

Zitsamba zodzaza ndi mafuta zimatha kugawidwa m'magulu amodzi amafuta ndi mafuta ambiri, ndipo ma capacitive bushings amatha kugawidwa m'mapepala a chingamu ndi opaka mafuta.

Manja amagwiritsidwa ntchito ngati ma conductor onyamula pakali pano akufunika kudutsa m'mipanda yachitsulo kapena makoma mosiyanasiyana.Malinga ndi mwambowu, matabwa amatha kugawidwa m'magulu a ma transfoma, mabatani osinthira kapena zida zamagetsi zophatikizika, ndi zomangira zapakhoma.Kwa dongosolo la electrode la "plug-in", gawo lamagetsi limayikidwa kwambiri pamphepete mwa electrode yakunja (monga flange yapakati ya bushing), kumene nthawi zambiri kutulutsa kumayambira.

Kugwiritsa ntchito ndi mawonekedwe a casing

Zitsamba zamphamvu kwambiri zimagwiritsidwa ntchito kuti ma conductor amphamvu kwambiri adutse magawo omwe ali ndi kuthekera kosiyanasiyana (monga makoma ndi ma casings azitsulo a zida zamagetsi) kuti atseke ndikuthandizira.Chifukwa cha kugawidwa kosagwirizana kwa gawo lamagetsi mu tchire, makamaka malo opangira magetsi omwe ali m'mphepete mwa flange yapakati, ndizosavuta kuyambitsa kutulutsa kwamadzi.Mapangidwe amkati amkati a bushing okhala ndi ma voltage apamwamba ndi ovuta kwambiri, nthawi zambiri amagwiritsa ntchito zida zophatikizira, ndipo pali zovuta monga kutulutsa pang'ono.Chifukwa chake, kuyesa ndi kuwunika kwa casing kuyenera kulimbikitsidwa.