Kev faib tawm ntawm insulator

Insulators tuaj yeem muab faib ua cov txheej txheem ncua kev kawm ntawv thiab cov khoom xa tawm raws li lawv txoj kev teeb tsa; Raws li cov khoom siv hluav taws xob sib txawv siv, lawv tuaj yeem muab faib ua cov khoom siv hluav taws xob, cov iav insulators, thiab cov khoom siv hluav taws xob sib xyaw (tseem hu ua cov insulators sib xyaw); Raws li qhov sib txawv voltage theem siv, nws tuaj yeem muab faib ua qis-voltage insulators thiab siab-voltage insulators; Muab cov pa phem resistant insulators siv rau hauv cov cheeb tsam uas muaj kuab paug raws li qhov sib txawv ib puag ncig siv; Muab DC insulators raws li ntau hom hluav taws xob siv; Kuj tseem muaj ntau lub hom phiaj tshwj xeeb insulators, xws li insulated cross caj npab, semiconductor glazed insulators, thiab nro insulators rau tis, spool insulators, thiab wiring insulators.
Tsis tas li ntawd, raws li qhov ua tau ntawm rwb thaiv tsev tiv thaiv kev puas tsuaj, nws tuaj yeem muab faib ua ob hom: A-hom tsis tawg insulators thiab B- hom tawg tau insulators.
Ncua tseg insulator
Nws yog dav siv rau kev rwb thaiv tsev thiab cov khoom siv kho qhov siab ntawm -voltage overhead kis kab thiab hloov tsheb npav hauv lub zog tsim hluav taws xob thiab hluav taws xob substation. Nyob rau hauv kev ncua kev kawm ntawv insulators, lawv kuj yuav muab faib ua disc suspension insulators thiab qws suspension insulators. Disc ncua kev kawm ntawv insulators yog cov feem ntau siv hom insulators rau kis kab. Qws suspension insulators tau siv dav hauv cov tebchaws xws li lub teb chaws Yelemees.
Pillar insulator
Nws yog tsuas yog siv rau rwb thaiv tsev thiab mechanical fixation ntawm busbar thiab cov khoom siv hluav taws xob hauv fais fab nroj tsuag thiab hluav taws xob substation. Tsis tas li ntawd, pillar insulators feem ntau yog siv los ua cov khoom siv hluav taws xob xws li kev sib cais cov keyboards thiab cov hluav taws xob hluav taws xob. Hauv post insulators, lawv tuaj yeem muab faib ua tus pin hom ncej insulators thiab pas nrig hom ncej insulators. Pin post insulators feem ntau yog siv nyob rau hauv qis -voltage tis kab thiab kev sib txuas lus kab, thiab pas nrig ncej insulators feem ntau yog siv nyob rau hauv high-voltage hluav taws xob substation.
Porcelain insulator
Insulators ua los ntawm hluav taws xob ceramics. Hluav taws xob ceramics yog ci los ntawm quartz, feldspar, thiab av nplaum ua raw khoom. Qhov saum npoo ntawm cov plooj (porcelain insulators) feem ntau yog them nrog cov plooj (porcelain glaze) txhawm rau txhim kho lawv cov khoom siv dag zog, tiv thaiv cov dej nkag mus, thiab ua kom lub ntsej muag smoothness. Ntawm ntau hom insulators, porcelain insulators yog feem ntau siv.
iav insulator
Lub rwb thaiv tsev tiv thaiv yog ib qho insulator ua los ntawm tempered iav. Nws nto yog nyob rau hauv lub xeev ntawm compression prestress. Yog tias tawg thiab hluav taws xob tawg tshwm sim, lub iav insulator yuav tawg mus rau hauv me me los ntawm nws tus kheej, feem ntau hu ua "tus kheej tawg". Qhov no feature tshem tawm qhov yuav tsum tau rau "zero value" nrhiav tau ntawm iav insulators thaum lub sij hawm ua hauj lwm.
Composite insulator
Kuj hu ua composite insulators. Lub rwb thaiv tsev tiv thaiv yog ib qho insulator muaj li ntawm fiberglass resin core pas nrig (los yog core tube), cov ntaub ntawv organic sheath, thiab lub kaus mom. Nws yog tus cwj pwm los ntawm qhov me me, lub teeb yuag, lub zog tensile siab thiab zoo heev los tiv thaiv cov pa phem flashover kev ua tau zoo, tab sis nws lub peev xwm los tiv thaiv - kev laus tsis zoo rau cov plooj (porcelain) thiab iav insulators.
Composite insulators muaj xws li qws suspension insulators, insulated cross caj npab, post insulators, thiab hollow insulators (piv txwv li lub tes tsho composite). Lub tes tsho sib xyaw tuaj yeem hloov lub tes tsho plooj (porcelain) uas siv rau hauv ntau yam khoom siv hluav taws xob, xws li transformers, hluav taws xob ntes, hluav taws xob hluav taws xob, lub tes tsho capacitive, thiab cable terminals. Piv nrog lub tes tsho plooj (porcelain), nws tsis yog tsuas yog muaj qhov zoo ntawm kev siv tshuab siab, lub teeb yuag, thiab qhov ntev me me, tab sis kuj zam kev puas tsuaj los ntawm kev tawg.
Tsawg voltage thiab high voltage insulators
Tsawg voltage insulators xa mus rau cov insulators siv rau qis-voltage tis thiab kev sib txuas kab. High voltage insulators hais txog cov insulators siv rau high voltage thiab ultra-high voltage overhead transmissions thiab Electrical substation. Txhawm rau ua kom tau raws li qhov xav tau ntawm qhov sib txawv ntawm qhov sib txawv, qhov sib txawv ntawm ib qho insulators ntawm tib hom feem ntau yog siv los ua cov hlua insulator los yog ntau lub rwb thaiv tsev ncej.
Pollution resistant insulator
The main measure is to increase or enlarge the insulator skirt or edge to increase the creepage distance of the insulator, in order to improve the electrical strength of the insulator in a polluted state. Nyob rau tib lub sijhawm, cov duab ntawm lub kaus tiab tiab kuj tau hloov pauv kom txo tau cov av sib xyaw ua ke ntawm lub ntiaj teb, txhawm rau txhim kho kev ua haujlwm ntawm cov pa phem flashover ntawm lub insulator. Qhov kev ncua deb ntawm cov pa phem resistant insulators feem ntau yog 20% ​​mus rau 30% siab dua li cov insulators zoo tib yam, lossis ntau dua.
Nyob rau hauv cov cheeb tsam uas nquag muaj kuab paug flashover nyob rau hauv Tuam Tshoj lub hwj chim daim phiaj, nws yog kev cai siv ob txheej umbrella zoo li cov pa phem resistant insulators, uas muaj zog nws tus kheej - tu muaj peev xwm thiab yooj yim rau manually ntxuav.
DC insulator
Feem ntau yog hais txog disc insulators siv hauv DC kis tau tus mob. DC insulators feem ntau muaj qhov kev ncua deb tshaj li AC cov pa phem resistant insulators, thiab lawv cov rwb thaiv tsev cov khoom muaj lub cev tiv taus siab dua (tsis pub tsawg dua 10 Ω·m ntawm 50 degree). Lawv cov khoom sib txuas yuav tsum tau nruab nrog cov khoom siv hluav taws xob (xws li lub tes tsho zinc thiab zinc rings) uas tiv thaiv electrolytic corrosion.
A-hom thiab B- hom insulators
Hom A yog hais txog cov insulators uas tsis tawg, nrog rau qhov kev ncua deb ntawm qhov qhuav tsis ntau tshaj 3 npaug ntawm qhov kev ncua deb ntawm qhov qhuav flashover (rau cam khwb cia resin) lossis 2 zaug ntawm qhov chaw qhuav flashover (rau lwm yam ntaub ntawv): Hom B yog hais txog kev puas tsuaj insulators, nrog qhov kev ncua deb tsawg dua 1/3 ntawm qhov chaw qhuav flashover (rau cam khwb cia resin) lossis 1/2 ntawm lwm cov ntaub ntawv qhuav flashover). Qhov kev ncua deb flashover ntawm cov insulators yog hais txog qhov luv tshaj plaws uas dhau los ntawm huab cua raws li sab nrauv ntawm cov khoom siv rwb thaiv tsev; Qhov kev ncua deb yog hais txog qhov luv tshaj plaws uas dhau los ntawm cov khoom siv insulating ntawm cov khoom siv insulating.