Hunhu hweceramic insulators
Maererano nemaitiro ekushandisa, magetsi ceramic tubes anogona kukamurwa kuva: Insulators yemitsara, insulators yezviteshi zvemagetsi kana midziyo yemagetsi;Inogona kukamurwa kuita insulator yemukati uye yekunze insulator zvinoenderana nenzvimbo yekushandisa;Ceramic, ivhu rechisikiro seyakasvibirira, yakasanganiswa zvinhu kuumba, workpiece Zvigadzirwa zvedhaka zvinoshandiswa kushandiswa kwemazuva ese, kuvaka hutsanana, midziyo yemagetsi (insulation), indasitiri yemakemikari uye yakakosha ceramics - capacitors, piezoelectric, magineti, electro-optic uye yakakwirira tembiricha yemagetsi ceramics. anowanzo kupatsanurwa zvinoenderana nechimiro chechigadzirwa, voltage level uye nharaunda yekushandisa yemagetsi ceramics.Zvinoenderana nechimiro chechigadzirwa, chinogona kukamurwa kuita: disc suspension insulator, pini insulator, tsvimbo insulator, hollow insulator, nezvimwe;Zvinoenderana nevoltage level, inogona kukamurwa kuita yakaderera-voltage (AC 1000 V uye pazasi, DC 1500 V uye pazasi) insulators uye yakakwira-voltage (AC 1000 V uye pamusoro, DC 1500 V uye pamusoro) insulators.Pakati pe-high-voltage insulators, pane Ultra-high voltage (AC 330kV uye 500 kV, DC 500 kV) uye Ultra-high voltage (AC 750kV uye 1000 kV, DC 800 kV).
Mhando yeanoshanda ceramics ayo resistivity inoshanduka zvakanyanya nekushisa.Zvinoenderana nehunhu hwekupikisa tembiricha, yakakamurwa kuita yakanaka tembiricha coefficient (PTC) Thermal Ceramics uye yakaipa tembiricha coefficient (NTC) Thermal Ceramics.
Iyo resistivity yeThermal Ceramics ine yakanaka tembiricha coefficient inodzikira exponentially nekuwedzera kwekushisa.Ichi chimiro chinodiwa nemagetsi emagetsi ezviyo uye miganhu yezviyo muhutano hwekeramics.Chete chekeramics ine zvizere semiconducted zviyo uye kusungirirwa kwakakodzera pamiganhu yezviyo kunogona kuve nehunhu uhu.Iyo inowanzo shandiswa yakanaka tembiricha coefficient thermosensitive ceramics ndeye semiconducting BaTiO ceramics ine inotsigira tsvina uye maworkpiece mumhepo yakaderedzwa.Iwo anonyanya kushandiswa kugadzira simba mhando swing variable thermosensitive ceramic resistors, ikozvino limiters, nezvimwe.
Iyo resistivity yeakaipa tembiricha coefficient thermosensitive ceramics inowedzera exponentially nekuwedzera kwekushisa.Mazhinji emakeramiki aya ndeye transitional metal oxide solid solutions ine spinel chimiro, kureva, maokisidi mazhinji ane imwe kana anopfuura simbi inochinja (yakadai seMn, Cu, Ni, Fe, nezvimwewo).Iyo yakajairika kemikari formula ndeye AB2O4, uye yayo conductive nzira inosiyana zvichienderana nekuumbwa, chimiro uye semiconductor modhi.Negative tembiricha coefficient thermal ceramics inonyanya kushandiswa kuyera tembiricha uye tembiricha muripo.Uye zvakare, kune anopisa ceramics ayo resistivity inoshanduka mutsara nekuwedzera kwekushisa, uye Thermal Ceramics iyo resistivity inoshanduka zvakare pane imwe tembiricha yakaoma.Iyo yekupedzisira inoshandiswa kugadzira magetsi ekupa magetsi, saka inonzi magetsi emagetsi Thermal Ceramics.Zvinoenderana nemhando yekushisa, maceramic ekupisa akakamurwa kuita yakaderera tembiricha (4 ~ 20K, 20 ~ 80K, 77 ~ 300K, nezvimwewo), tembiricha yepakati (inozivikanwawo seyakajairwa, - 60 ~ 300 ℃) uye tembiricha yepamusoro (300 ~ 1000 ℃).
Positive tembiricha coefficient thermistor;Semiconductor ceramics;Ferroelectric ceramics;development
Abstract: zvinoenderana nezvinyorwa zvinyorwa uye ruzivo muchiitiko chebasa, tsvakiridzo yekugadzira, bvunzo yemaitiro, hunhu hwezvinhu uye kushandiswa kwePTC ceramics zvinotsanangurwa.
Johnson simba, imwe-stop sevhisi yevashandisi vemasimba epasirese.Jiangxi Johnson Electric Co., Ltd. inogadzira magetsi insulators, porcelain insulators, magirazi insulators, composite insulators, line insulators, kuturika insulators, pini insulators, disc insulators, tension insulators, zvinosunga mheni, disconnectors, transformers, load switch, box substations, drop. fuse, tambo uye magetsi ekuisa.Kugamuchirwa kubvunza.
Hunhu hwegirazi insulator
Girazi insulator ine zvinotevera maitiro:
(1) Yakakwirira mechani simba, 1 ~ 2 nguva yakakwirira kupfuura iyo yeporcelain insulator.
(2) Kuita kwakagadzikana uye hakusi nyore kuchembera, uye kushanda kwemagetsi kwakakwira kupfuura iyo yeporcelain insulator.
(3) Maitiro ekugadzira ishoma, kutenderera kwekugadzira kupfupi, kuri nyore kugadzira uye otomatiki kugadzirwa, uye kugona kwekugadzira kwakakwira.
(4) Nekuda kwekujeka kwegirazi insulator, zviri nyore kuwana madiki akatsemuka uye akasiyana mukati mehurema kana kukuvadza panguva yekuongorora kwekunze.
(5) Kana pane kukanganisa kwakasiyana-siyana mumutumbi wegirazi we insulator, girazi rinobva raputika, iro rinonzi "self breaking".Mushure mekunge insulator yatyoka, sando yakasara yekapu yesimbi ichiri kuchengetedza imwe mechanical simba uye yakasungirirwa pamutsetse, uye mutsara unogona kuramba uchishanda.Kana muongorori wemutsara akaongorora mutsara, zviri nyore kuwana iyo yakaputsika insulator uye kutsiva iyo insulator nyowani nenguva.Nekuti iyo insulator yegirazi ine hunhu hwe "self breaking", hazvifanirwe kuita bvunzo yekudzivirira pane insulator mukuita mutsara wekushanda, izvo zvinounza kurerukirwa kukuru pakushanda.
(6) Glass insulators ane huremu huremu.Nekuda kwemaitiro ekugadzira uye zvimwe zvikonzero, iyo "self breaking" mwero wegirazi insulator wakakwira, inova kukanganisa kunouraya kwegirazi insulator.
Mhando ye composite suspension insulator:
yakajairika mhando, kusvibiswa kusagadzikana mhando, DC mhando, spherical type, aerodynamic type, yepasi waya mhando, yekumusoro yekubata system yemagetsi njanji.
1. The composite insulator chigadzirwa chinoumbwa nezvikamu zvitatu: girazi fiber epoxy resin kudhonza-kunze tsvimbo, silicone rubber umbrella siketi uye hardware.Iyo silicone rubber umbrella siketi inotora iyo yakakosha yekumanikidza jekiseni maitiro, ayo anogadzirisa dambudziko rakakosha rinokanganisa kuvimbika kwecomposite insulator, interface yekuparara kwemagetsi.Iyo yakanyanya kukwirira crimping process inogamuchirwa yekubatana pakati pegirazi rekudhonza-kunze tsvimbo uye mafittings, ayo akashongedzerwa akazara-automatic acoustic kukanganisa kukanganisa system.Iine simba rakakwirira, chitarisiko chakanaka, vhoriyamu duku uye uremu hwakareruka.Iyo galvanized fittings inogona kudzivirira ngura uye ngura, uye inogona kuchinjana ne porcelain insulators.Chimiro chacho chakavimbika, hachikuvadzi mandrel, uye chinogona kupa kutamba kwakazara kune simba rayo remagetsi.
2. Superior magetsi ekushanda uye yakakwirira mechanical simba.Kusimba uye kushanduka kwesimba re epoxy girazi rekudhonza-kunze tsvimbo yakatakurwa mukati yakapetwa ka2 kupfuura iyo yesimbi yakajairika uye 8 ~ 10 nguva yakakwirira kupfuura iyo yakakwirira-yakasimba porcelain, iyo inobudirira inovandudza kuvimbika kwekushanda kwakachengeteka.
3. Iine kumira zvakanaka kwekusvibiswa, kumira zvakanaka kwekusvibiswa uye kusvibiswa kwakasimba kwe flashover kuramba.Kunyorova kwayo kushingirira voltage uye kusvibiswa kushingirira voltage ndeye 2 ~ 2.5 nguva yeporcelain insulators ine imwechete creepage chinhambwe.Pasina kuchenesa, inogona kushanda zvakachengeteka munzvimbo dzakasvibiswa zvakanyanya.
4. Diki vhoriyamu, huremu huremu (chete 1/6 ~ 1/9 yeporcelain insulator yegiredhi rimwechete revoltage), chimiro chakareruka uye kufambisa kuri nyore uye kuisa.
5. Iyo silicone rubber umbrella siketi ine yakanaka hydrophobic performance.Chimiro chayo chese chinovimbisa kuti iyo yemukati insulation haina kukanganiswa nehunyoro.Iko hakuna chikonzero chekudzivirira chekudzivirira chekutarisa bvunzo uye kuchenesa, izvo zvinoderedza basa rekuchengetedza zuva nezuva.
6. Iine chisimbiso chakanaka chekuita uye yakasimba yemagetsi corrosion resistance.Iyo amburera siketi yezvinhu inoshingirira kudonha kwemagetsi uye inomira kusvika tma4 Level 5, ine yakanaka kuchembera kuramba, corrosion resistance uye kushomeka kwekushisa, inogona kuiswa kunzvimbo ye - 40 ℃ ~ - 50 ℃.
7. Iine simba rakasimba rekudzivirira uye kusagadzikana kwekutya, yakanaka anti brittleness uye creep resistance, isiri nyore kuputsika, kukotama kwakakwirira uye simba rekuputika, inogona kumira mukati memukati, simba rakasimba rinoputika-rinoputika, uye rinogona kuchinjwa ne porcelain uye magirazi insulators.
8. Iyo mechanical uye magetsi emagetsi e composite insulator series ari nani pane ayo eporcelain insulator, ane hombe yekuchengetedzwa kwekuchengetedza margin.Icho chigadzirwa chakagadziridzwa chetambo yemagetsi.
Hunhu hwecomposite insulator
1. Iyo zero kukosha ndeyekuzvityora uye nyore kuona
Mupendero wakarembera une zvimiro zve zero value self breaking.Chero bedzi ichionekwa pasi kana pachikopokopo, hapana chikonzero chekukwira danda kuti uone chidimbu nechidimbu, izvo zvinoderedza kushanda kwevashandi.
Nekuunzwa kwezvigadzirwa kubva mumutsara wekugadzira, iyo yegore yekushanda self breaking rate ndeye 0.02-0.04%, iyo inogona kuchengetedza mutengo wekugadzirisa wemutsara.Yakanaka arc uye vibration kuramba.Mukushanda, iyo nyowani yegirazi insulator yakapiswa nemheni ichiri yakatsetseka girazi muviri uye ine yakaomeswa yemukati inodzivirira yekudzivirira layer.Nokudaro, inoramba ichichengetedza simba rakakwana rekudzivirira uye simba remagetsi.
Njodzi inomhanya yakakonzerwa neconductor icing yakaitika kakawanda pamutsetse we500 kV.Iyo composite yekumisa insulator mushure mekumhanya kwekondukita haina attenuation mukuita kwe electromechanical.
2. Zvakanaka kuzvichenesa kuita uye hazvisi nyore kukwegura
Zvinoenderana neruzhinji kuratidzwa kwedhipatimendi remagetsi, iyo insulator yegirazi haisi nyore kuunganidza kusvibiswa uye nyore kuchenesa, uye insulator yegirazi inomhanya kumutsara wekumaodzanyemba inoshambidzwa yakachena mushure mekunaya.
Gara uchienzanisa magirazi ekudzivirira pamitsetse munzvimbo dzakajairwa kuyera mashandiro emagetsi mushure mekushanda.Izvo zvakaunganidzwa zviuru zve data zvinoratidza kuti electromechanical performance yegirazi insulators mushure memakore makumi matatu nemashanu ekushanda inonyatsoenderana neiyo panguva yekusununguka, uye hapana chiitiko chekuchembera.
Iyo hukuru hukuru hwakakura, kugovera kwemagetsi mutambo yunifomu, uye dielectric kugara kwegirazi ndeye 7-8, izvo zvinoita kuti iyo composite insulator ive nehombe huru capacitance uye yunifomu voltage kugovera mutambo, izvo zvinobatsira kuderedza voltage inotakurwa neiyo insulator padhuze nedivi kondakita uye pasi, kuitira kuderedza kupindira kweredhiyo, kuderedza kurasikirwa kwekorona uye kurebesa hupenyu hwesevhisi yegirazi insulator.Maitiro ekuvhiya aratidza izvi
Maitiro ekuita uye sevhisi mamiriro ecomposite insulator # maitiro ekuita ecomposite insulator:
1. Diki vhoriyamu uye huremu huremu, ingangoita 1 / 5 ~ 1 / 9 yeiyo yakafanana voltage giredhi porcelain insulator, iyo yakanakira kutakura uye kuiswa.
2. Composite insulator ine high mechanical simba, yakavimbika chimiro, yakagadzikana kushanda uye yakakura margin yekushanda kwakachengeteka, iyo inopa vimbiso yemutsara uye yakachengeteka kushanda.
3. The composite insulator ine yepamusoro yemagetsi kushanda.Iyo silicone rabha amburera siketi ine yakanaka hydrophobicity uye kufamba, yakanaka kusvibiswa kuramba uye yakasimba anti kusvibiswa flashover kugona.Inogona kushanda zvakachengeteka munzvimbo dzakasvibiswa zvakanyanya pasina kuchenesa nemaoko uye inogona kusununguka kubva kune zero kukosha kuchengetedza.
4. Iyo insulator inoumbwa ine maitiro easidhi uye alkali kushorwa, kupisa kuchembera kwekusagadzikana uye kushomeka kwemagetsi, kuita kwakanaka kwekuvhara, uye inogona kuve nechokwadi chekuti kuvharwa kwayo kwemukati hakukanganisike nehunyoro.
5. The composite insulator ine yakanaka brittleness resistance, yakasimba shock resistance uye hapana brittle fracture tsaona.
6. Composite insulators inotsiviwa uye inogona kuchinjwa ne porcelain insulators .
Nzira yekutonga sei kunaka kwe insulator?
a.Standard yevanokwanisa insulation resistance
(1) Kudzivirira kwekudzivirira kwevachangobva kuiswa insulators kuchave kwakakura kupfuura kana kuenzana ne500m Ω.
(2) Kudzivirira kwekudzivirira kwe insulator panguva yekushanda kuchave kwakakura kudarika kana kuenzana ne300m Ω.
b.Kutonga musimboti wekuderera kwe insulator
(1) Kana iyo insulator kuramba iri pasi pe300m Ω uye yakakura kupfuura 240m Ω, inogona kutongwa seyakaderera kukosha insulator.
(2) Kana iyo insulator kuramba iri pasi pe240m Ω, inogona kutongwa se zero insulator.
Iyi nzira haiwanzo shandiswa kuyedza kudzivirira kwekudzivirira kwecomposite insulation.
Suspension insulators inoshandiswa zvakanyanya mumagetsi system.FRP suspension insulators ine hupenyu hurefu hwebasa uye inofarirwa nemagetsi system.Hunhu hwekumisa insulators mumusika hauna kuenzana.Pane marecycled wasste suspension insulators ari kutengeswa.Izvo zvinodikanwa kuenzanisa zvinhu kana uchitenga kuturika insulators.Kana iwe uchida kuziva nezve yakamiswa insulator gungano uye kuwana yakamiswa insulator yekubatanidza mapikicha, unogamuchirwa kubvunza Joson magetsi emagetsi kambani, inogadzira yemhando yepamusoro yekumisa insulator.Josen simba rinopa high-voltage electric porcelain suspension insulators, 330kV suspension insulators, 500kV suspension insulators, 10kV suspension composite insulators, suspension pollution resistant insulators, zvakajairika kuturika insulators, disk suspension glass insulators uye kuturika.
Nguva yekutumira: Kubvumbi-18-2022