Bushing: hom thiab hom

Qhov tsab xov xwm yuav muab cov lus qhia txog lub bushings, lawv hom thiab hom. Paub meej yuav tsum demolished qauv ntawm ntau hom, hom lawv tus kheej, lawv tau thiab lub hom phiaj. Nws yuav kuj pom tau tias lawv zoo nyob rau hauv kev sib piv nrog uas zoo sib xws kiag li lawm. Tom qab nyeem ntawv hauv tsab xov xwm, koj tsis tau tsuas kawm lus qhia dav dav txog cov bushings, tab sis kuj yuav tau decipher cov ntawv thiab muaj peev xwm kom paub qhov txawv ib hom ntawm lwm tus.

Scope ntawm cov bushings

Yuav ua li cas yog bushing? Qhov no yog ib tug tshwj xeeb ntaus ntawv, lub ntsiab muaj nuj nqi uas yog los xyuas kom meej rho tawm ntawm conductive ntsiab ntawm lub puab los yog txheej phab ntsa ntawm lub sheath los ntawm kev uas lawv kis tau. Lawv kuj yog siv nyob rau hauv lub installation ntawm muab faib rau pab kiag li lawm ntawm transformer substations, kuj ua si ib lub luag hauj lwm nyob rau hauv cov uas nrhiav tau kom tiav switching chaw zov me nyuam.

Kev them nyiaj yug insulators yog tsim rau cov kev kho nyiaj siv ua haujlwm kab uas nyob busbars Switchgear thiab lwm yam hluav taws xob sib. Nws yog ib nqi ntxiv hais tias lub iav insulators hom uas nrov ua ntej, siv rau hnub no nrog ib tug ntau ntawm kev hloov kho.

Lub bushings yog heev yooj yim mus siv rau kev twb kev txuas terminals substations, los ntawm uas powered tsev.

hom ntawm insulators

Bushings raug muab faib ua ob hom. Tus thawj hom - yog insulators, uas yog tsim los rau sab hauv tsev installation. Lawv yog siv raws li high-nqus los yog high-voltage Circuit Court terminals ntawm lub transformers. Bushing xa daim ntawv no yog ua los ntawm iav, thiab cov khoom yog nyob rau hauv ib tug hlau pas nrig. Nws yog tsau by means of flanges ua los ntawm cov hlau, ib tug iav hau txuas thiab nplaum xuab zeb muaj pes tsawg leeg.

Qhov thib ob hom reassigned rau lub txheej thiab rau lub puab installation. Xws li yog tsim intermediate tav uas cov txheej txheem ntawm nyob rau hauv ib tug me me deb ntawm txhua lwm yam. Cov pab kiag li lawm yog tsim rau cov rwb thaiv tsev ntawm nyob qhov chaw uas xa tuaj nrog Switchgear. Ib tug bushing ntawm no hom yog siv nyob rau ntawm ib kev khiav hauj lwm voltage network 10, 25, 35, 110 kV, thiab cov kev khiav hauj lwm tam sim no ntawm los ntawm 630 mus 11,000 A.

Nws tseem muaj lwm hom insulators, tab sis lawv yog tsim kom tau ib lub hom phiaj hauv daim ntawv thov. txaus hom pab kiag li lawm yuav tsum tau rau rwb thaiv tsev Switchgear conductive qhov chaw rau kev twb kev txuas ntawm tus neeg mus rau lub log cua kis tau tus mob kab. Cov khoom uas yog los ntawm cov ntaub ntawv tsa lub fortress rau lawv tsim yog resistant rau dynamic tam sim no loads.

zoo ntawm insulators

Lub bushing yuav tsum tau muaj ib tug ntev lub neej, li ntawd nws muaj raws li nram no cov yam ntxwv:

• siab kuj mus txhoj puab heev kev khiav hauj lwm tej yam kev mob;
• ib tus me yuag;
• UV kuj;
• siab zog;
• ntev kev pab cuam lub neej;
• kuj me me qhov ntev.

tsim IP

Bushings SP yuav tsum muaj huab txhua yam thiab hluav taws xob lub zog, tiam sis tus cov ntaub ntawv uas los ntawm uas lawv ua, tej zaum yuav raws li nram no:

• polymer;
• iav;
• tempered iav.

Lub insulator yog tsim los rhuav tshem voltage yog siab voltage sib tshooj. Sab nraud isolators yog tas li nyob rau hauv tus ntawm lwm tej yam, yog li lawv nto yog grooved. Qhov no yog ua hais los txhim kho lub lag luam los ntawm cov khoom.

Insulators xav kom subdivided rau hauv bushing, them nyiaj yug los ncua kev kawm ntawv, tseem muaj txoj kev installation rau qhov kev tso kawm nyob rau hauv vaj tse thiab lug los yog rau sab nraum zoov installation.

Dua SP-10 yog feem ntau ua los ntawm iav. Lub constructive siv ntawm xws li ib tug insulator yog txiav txim los ntawm lub nyob voltage thiab zaus ntawm coj mus muag lub hwj chim. Tus ntaus ntawv nws tus kheej muaj ib tug iav cev ntawm cylindrical puab, mounted rau axles uas sawv nruj nreem Bonded siv xis mas xuab zeb mortar.

sij hawm bushings

Lub hom phiaj tseem ceeb ntawm cov bushings yog cais tawm nyob conductors, uas kis tau los ntawm cov phab ntsa thiab npog ntawm vaj tse los yog lug. Tej insulators yog muaj li ntawm ib tug dielectric iav. Lub cev yog ua nyob rau hauv daim ntawv ntawm ib tug kheej kheej, nyob rau sab saum toj ntawm uas muaj ib tug tam sim no-nqa pas nrig. Nyob rau nruab nrab, rau theem ntawm cov hlau tsev nyob mounted flanges uas, raws li yav tas los hais, npaj yuav tsum tau tsau mus rau lub insulator nto.

Bushing SP nyob rau ntawm ib kev khiav hauj lwm voltage mus rau 10 kV yog ua los ntawm iav, thiab nyob rau ntawm ib kev khiav hauj lwm voltage tshaj 35 kV lub vaj tse yog ua raws li ib tug complex rwb thaiv tsev qauv uas, nyob rau hauv lem, muaj ib lub cev iav, duab los qhia cov phiaj, insulating ntawv thiab transformer roj.

Mounting bushings

Thaum mounting bushings sab nraum zoov ntsuam xyuas rau tej kab nrib pleb thiab lwm yam tsis xws luag, raws li tej zaum yuav puas thaum lub sij hawm thauj nto ntawm insulators. Tsis tas li ntawd xyuas seb qhov chaw glaze tau hnav tawm, uas yog siv rau ntxiv kev tiv thaiv thiab rwb thaiv tsev cov khoom.

Insulators yuav tsum tau muab tso rau hauv tej hlau lug luag cov khoom, raws li zoo raws li lub durability ntawm log tsheb los yog nyiaj siv ua haujlwm hwj chim kav.

Txhim kho bushings pib nrog ib tse nrog koj nkag phaj, uas yog txuas mus rau cov qauv los yog tej khoom. Ntxiv mus, lub insulators yog kaw nyob rau ob sab los ntawm cov kaus mom hlau hlau partitions muaj lub keeb li railway tsheb nqaj hlau. Lawv loj nyob rau qhov luaj li cas ntawm cov log tsheb thiab secured. Nyob rau cov lus xaus ntawm qhov tsab xov xwm ntawm lub log tsau mounted struts log tsheb.

Npav bushings

Npav reassigned nyob rau hauv kev txiav txim mus rau ntsiab tag nrho cov yam ntxwv ntawm cov khoom. Piv txwv li, lub insulator zaj SP-10 630 7.5 UHL1, wherein:

• Thiab - ib tug insulator;
• P - muaj los;
• 10 - lub cev operating voltage ntawm cov khoom (kV);
• 630 - lub cev kev khiav hauj lwm tam sim no product (A);
• 7.5 - rhuav load (KN);
• UHL - climatic tej yam kev mob ntawm tua;
• 1 - rau hauv qeb ntawm kev pab.

Neej puas voltage ntawm PI

Neej puas voltage iav SP tej zaum yuav txawv nyob ntawm seb lub thickness ntawm cov iav txheej. Dua li no, lub insulator qauv yog txiav txim los ntawm qhov yuav tsum tau cov neeg kho tshuab zog, nyob voltage ntawm overlapping thiab kev soj ntsuam ntxiv rau cov tshem tawm ntawm lub crown.

Thaum lub bushing 10 kV tsis yuav ntsuas kom tshem tawm cov corona. Nrog nominal voltages saum toj no 35 kV yog siv rau cov kev ntsuas installation nyob ze ntawm lub crown ntawm cov pas nrig opposite lub flange, cia li nyob hauv lub taw tes qhov twg tshaj plaws nro nyob rau hauv cov huab cua.

Yuav kom tiv thaiv corona, insulators manufactured tsis muaj cua kab noj hniav nyob ib ncig ntawm cov hlau pas nrig pov tseg nyob rau hauv lub insulator. Thaum lub sij hawm no metallized nto SP nrog ib tug pas nrig. Nyob rau hauv thiaj li yuav tshem tawm qhov tshwm sim ntawm paug rau hauv qab SP, kuj qab nto metallized thiab ntxiv grounded.

xaus

Tej zaum txhua leej txhua tus lawm puas pom transformer nyiaj siv ua haujlwm kab uas yog txuas mus rau lub SP. Cov pab kiag li lawm yog tseem yuav tsum tau rau kev twb kev txuas ntawm cov nyob ntawm tej rau qhov chaw ruaj sib, vim hais tias tsis muaj insulators tsis yooj yim sua kev twb kev txuas ntawm high-voltage nyob ntawm tej.