Bushing: izinhlobo kanye izinhlobo

Lesi sihloko sizosisiza ukuhlinzeka ngolwazi mayelana bushings, ngezinhlobo zazo kanye nezinhlobo. Yekuchumana siyobhidlizwa isakhiwo ezihlukahlukene, izinhlobo ngokwabo, Ububanzi nenhloso yawo. Luphinde kubhekwe nezinzuzo zabo uma ziqhathaniswa amadivayisi efanayo. Ngemva kokufunda lesi sihloko, wena nje kuphela ukufunda ulwazi olujwayelekile mayelana bushings, kodwa futhi ukwazi wokufunda amalebula kanye bakwazi ukuhlukanisa zenye ukusuka kwenye.

Ububanzi bushings

Kuyini bushing? Le idivayisi ekhethekile, umsebenzi oyinhloko okuyinto ukuqinisekisa kwemihlambi izakhi conductive odongeni kwangaphakathi noma yangaphandle emgodleni lapho bephumelela. Futhi asetshenziswa ukufakwa amadivayisi ukusatshalaliswa of transformer ezincane, nazo zinendima ethile e okutholakele Qedela usuke izikhungo.

Ukusekela insulators zenzelwe ukulungisa imigqa phezulu nge busbars bukhoma switchgear nezinye ukufaka kagesi. Kuwufanele oqhube wathi zobumba insulators uhlobo ezazithandwa ngaphambi, esetshenziswa lamuhla eziningi ukulungiswa.

I bushings izinto zibe lula kakhulu ukusebenzisa i-uxhumano ezikhumulweni ezincane, kusukela lapho inikwa amandla yi amakhaya.

izinhlobo insulators

Bushings zihlukaniswe izinhlobo ezimbili. Uhlobo lokuqala - kuyinto insulators, okuyinto zenzelwe ukufakwa zasendlini. Asetshenziswa njengezitolo ephezulu cleaner noma ephezulu voltage wesifunda ezikhumulweni we transformers. Bushing ifomu lihanjisiwe eyenziwe ngobumba, kanti ama umkhiqizo itholakala ngaphakathi induku yensimbi. It is fixed esebenzisa Flanges eyinsimbi cap zobumba elalifike okunamathelayo isihlabathi kwengoma.

Eyesibili uhlobo zabelwa ngokuba yangaphandle futhi ukufakwa kwangaphakathi. Amadivayisi anjalo zidalwe izimbambo Lesisemkhatsini ukuthi ahlelwe buqamama encane evela nomunye. Lezi amadivayisi zenzelwe ukwahlukanisa kusuka izingxenye bukhoma okuvalelwe switchgear. A bushing yalolu hlobo isetshenziswa ngesikhathi inethiwekhi yokusebenza voltage 10, 25, 35, 110 kV, kanye yokusebenza samanje kusuka 630 kuya 11,000 A.

Kukhona futhi ezinye izinhlobo insulators, kodwa zenzelwe target lokusebenza oluthile. ukugeleza uhlobo amadivayisi ayadingeka ukuze ukwahlukanisa switchgear izingxenye conductive uxhumano we abathengi kwesondo emoyeni zikagesi. Le mikhiqizo zenziwa ngezinto wavusa inqaba design yabo olumelana imithwalo ashukumisayo zamanje.

Izinzuzo insulators

I bushing kufanele abe nokuphila isikhathi eside, ngakho-ke has izici ezilandelayo:

• ukumelana nezimo yokusebenza nolaka;
• isisindo elincane;
• Ukumelana UV;
• amandla okusezingeni eliphezulu;
• ukuphila isikhathi eside;
• Ubukhulu elincane.

umklamo IP

Bushings SP ubenawo amandla kakhulu mechanical kagesi kanye Nokho impahla zenziwa kuyiphi, kungase kube kanje:

• polymer;
• zobumba;
• ingilazi omnene.

I yisivikelo yakhelwe ukuwohloka voltage lalilide voltage ukugqagqana. isolators bangaphandle njalo ngaphansi kwethonya izici zangaphandle kwemvelo, ngakho ezindaweni zawo is ezimazombezombe. Lokhu kwenziwa ikakhulukazi ukuthuthukisa ukusebenza kwe-umkhiqizo.

Insulators ahlose selihlukene laba bushing, ukwesekwa noma ukumiswa, kukhona izindlela ukufakwa for ukubekwa e izakhiwo kanye nezinhlaka noma ukufakwa ongaphandle.

Ukudlulisa SP-10 uvame wenza kusukela zobumba. Ukuqaliswa ezakhayo i yisivikelo ixhomeke kusukela voltage owalinganisile imvamisa kwamandla kwezohwebo. Idivayisi yakhiwe ngesikhwama umzimba zobumba bunjwa cylindrical, ogibele enama-asi okuyinto emaphethelweni uvalwe eziboshiwe usebenzisa usimende-isihlabathi nodaka.

Ukuqokwa bushings

Injongo eyinhloko ye-bushings kuyinto ukwehlukanisa babashayeli bukhoma, okuyinto idlule izindonga isembozo izakhiwo noma izakhiwo. insulators ezinjalo sakhiwa zobumba Kwe-dielectric Heating. Umzimba senziwa ngendlela isilinda, phezu okuyinto kukhona induku zamanje aphethe umqondo. Ngokwesilinganiso, ezingeni izindlu metal ukukhwezwa Flanges okuyinto, njengoba kushiwo ngaphambili, okuhlose kuzolungiswa kwamanzi yisivikelo.

Bushing SP i-voltage yokusebenza-10 kV eyenziwe ngobumba, kanti ama i-voltage yokusebenza esingeqile 35 kV izindlu yenziwa eziyinkimbinkimbi ukwahlukanisa isakhiwo esingagcina yena, siqukethe zobumba umzimba, amakhadibhodi amapuleti, iphepha nangokuvikela futhi amafutha transformer.

bushings ukukhweza

Lapho bushings obandayo Outdoor zihlolwe for ukuqhekeka nezinye ukukhubazeka, njengoba yoniwe ngesikhathi ezokuthutha ebusweni insulators. Futhi uhlole ukuthi glaze ebusweni isigugile off, esetshenziselwa imikhiqizo wanezela ukuvikelwa kanye ukwahlukanisa.

Insulators kufanele libekwe yimuphi izakhiwo metal ukuzizuzela umkhiqizo, kanye nokuqina amathayi noma phezulu nezintambo zikagesi.

Ukufaka bushings iqala obeka ipuleti emnyango, okuyinto kuxhunywe esakhiweni noma iyiphi lwemidlalo. Ngaphezu kwalokho, insulators ivaliwe nhlangothi zombili by ofeleba nensimbi metal ngodonga kokuba ukuvuleka unxande efana ujantshi wesitimela. usayizi yabo incike ubukhulu isondo futhi okuphephile. On iziphetho isihloko phakathi isondo fixed struts ukukhwezwa amathayi.

Ukumaka bushings

Ukumaka zabelwa ukuze aqokomise zonke izici umkhiqizo. Ngokwesibonelo, SP-10 yisivikelo ndima 630 7.5 UHL1, lapho:

• Futhi - i yisivikelo;
• P - ukudlula;
• 10 - evamile yokusebenza voltage komkhiqizo (kV);
• 630 - evamile ezisebenza umkhiqizo wamanje (A);
• 7.5 - breaking umthwalo (kN);
• UHL - izimo zezulu ngokubulawa;
• 1 - isigaba yokuhlala.

Ukubhidlika voltage ka PI

Ukubhidlika voltage zobumba SP zingase zihluke kuye ukushuba we ungqimba zobumba. Naphezu kwakho konke lokhu, isakhiwo yisivikelo kunqunywa eyayidinga amandla mechanical, ukalwe voltage wezinyathelo agqagqene futhi ezengeziwe yokususa umqhele.

Lapho bushing 10 kV ungathathi izinyathelo ukususa corona. Nge asetshenziswa voltages okuzisholo ngenhla 35 kV ukufakwa izinyathelo eduze umqhele induku malungana flange, nje endaweni lapho ukungezwani esiphezulu emoyeni.

Ukuvimbela corona, insulators ekhiqizwa ngaphandle komoya ingaphakathi emhlabeni induku metal ngokufanele ngaphakathi yisivikelo. Ngalesi metallized ebusweni SP ngenduku. Ukuze kuqedwe okuvela kuyo ocucuzayo ngesikhathi SP phansi, futhi ngaphansi kwamanzi metallized futhi eminye imithetho eqinile.

isiphetho

Mhlawumbe wonke umuntu owake wabona transformer phezulu imigqa okuyinto Banamathele SP. Lezi amadivayisi nazo kwadingeka kwezinhlelo ukuxhumana izintambo kuze ukufaka fixed, ngoba ngaphandle insulators uxhumano kungenzeki ephezulu voltage izintambo.