Iimpawu ze-ceramic insulators
Ngokweempawu zesicelo, iibhubhu ze-ceramic zombane zingahlulwa zibe: I-Insulators yemigca, i-insulators yezikhululo zamandla okanye izixhobo zombane;Inokwahlulwa ibe yi-insulator yangaphakathi kunye ne-insulator yangaphandle ngokwendawo yesicelo;I-Ceramic, udongwe lwendalo njengemathiriyeli ekrwada, ukwenza izinto ezixubeneyo, i-workpiece Iiseramikhi eziqhelekileyo zisetyenziselwa ukusetyenziswa kwemihla ngemihla, ucoceko lwesakhiwo, izixhobo zombane (i-insulation), ishishini lemichiza kunye neekeramics ezikhethekileyo - i-capacitors, i-piezoelectric, imagnethi, i-electro-optic kunye nobushushu obuphezulu beseramikhi zombane. zidla ngokuhlelwa ngokwemilo yemveliso, inqanaba lombane kunye nokusingqongileyo kokusetyenziswa kweeseramikhi zombane.Ngokwemilo yemveliso, inokwahlulwa ibe: i-disc suspension insulator, i-pin insulator, i-insulator yentonga, i-insulator engenanto, njl.Ngokwenqanaba le-voltage, inokwahlulwa ibe yi-low-voltage (AC 1000 V nangaphantsi, DC 1500 V nangaphantsi) i-insulators kunye ne-high-voltage (AC 1000 V nangaphezulu, DC 1500 V nangaphezulu) insulators.Phakathi kwee-insulators eziphezulu ze-voltage, kukho i-ultra-high voltage (AC 330kV kunye ne-500 kV, DC 500 kV) kunye ne-ultra-high voltage (AC 750kV kunye ne-1000 kV, DC 800 kV).
Uhlobo lwe-ceramics olusebenzayo olunokumelana nokutshintsha kakhulu ngobushushu.Ngokweempawu zokumelana nobushushu, yahlulwe yaba yi-coefficient yobushushu obufanelekileyo (PTC) I-Thermal Ceramics kunye ne-coefficient yeqondo lokushisa elibi (NTC) I-Thermal Ceramics.
I-resistantivity ye-Thermal Ceramics ene-coefficient yokushisa efanelekileyo iyancipha ngokunyuka kweqondo lokushisa.Olu phawu lufunwa yimpahla yombane yeenkozo kunye nemida yeenkozo kwisakhiwo seekeramics.Iiseramics kuphela ezineenkozo ze-semiconducted ngokupheleleyo kunye ne-insulation eyimfuneko kwimida yeenkozo ezinokuthi zibe nolu phawu.Isiqhelo esisetyenziswayo esifanelekileyo somlinganiso weqondo lobushushu iiseramikhi ze-thermosensitive semiconducting iiseramics ze-BaTiO eziqulathe ubumdaka obuxhasayo kunye nezinto zokusebenza kwiatmosfera encitshisiweyo.Zisetyenziswa ikakhulu ukwenza uhlobo lwamandla ujingi oluguquguqukayo lwe-thermosensitive resistors ceramic, imida yangoku, njl.
I-resistantivity ye-coefficient ye-coefficient ye-thermosensitive ceramics inyuka ngokukhawuleza ngokunyuka kweqondo lokushisa.Uninzi lwezi kheramics zizisombululo zetsimbi zetsimbi ye-oxide eqinile enesakhiwo se-spinel, oko kukuthi, ii-oxides ezininzi eziqulethe isinyithi esinye okanye ezininzi eziguqukayo (ezifana noMn, Cu, Ni, Fe, njl.).Ifomula yeekhemikhali eziqhelekileyo yi-AB2O4, kwaye indlela yayo yokuqhuba iyahluka ngokuhambelana nokubunjwa, ukwakheka kunye nemodi ye-semiconductor.I-ceramics ye-thermal coefficient engalunganga isetyenziselwa ukulinganisa ubushushu kunye nembuyekezo yobushushu.Ukongeza, kukho iikeramics ezishushu ezitshintshayo ukumelana nokunyuka kweqondo lobushushu, kunye neeCeramics zeThermal ezitshintshayo ukumelana nobushushu obuthile.Le yokugqibela isetyenziselwa ukuvelisa izixhobo zokubonelela ngombane, ngoko ibizwa ngokuba yi-Thermal Ceramics yokubonelela ngombane.Ngokoluhlu lobushushu, iikeramics ezishushu zohlulwe zibe yiqondo lobushushu eliphantsi (4 ~ 20K, 20 ~ 80K, 77 ~ 300K, njl.), ubushushu obuphakathi (ekwaziwa ngokuba ngumgangatho, - 60 ~ 300 ℃) kunye nobushushu obuphezulu (300 ~ 1000℃).
I-thermistor ye-coefficient yobushushu obufanelekileyo;Iiseramikhi zeSemiconductor;Iiseramikhi zombane;uphuhliso
I-Abstract: ngokweengxelo zoncwadi kunye namava kumsebenzi wokusebenza, uphando lokuqulunqa, uvavanyo lwenkqubo, iimpawu zezinto eziphathekayo kunye nokusetyenziswa kwee-ceramics ze-PTC zichazwe.
Johnson amandla, inkonzo eyodwa-stop kubasebenzisi bamandla behlabathi.I-Jiangxi Johnson Electric Co., Ltd. ivelisa izithinteli zombane, izithinteli zombane, izithinteli zeglasi, izithinteli ezihlanganisiweyo, izithinteli zomgca, izithinteli zokuxhoma, izigqubuthelo zepini, izithinteli zediski, izithinteli zoxinzelelo, ukubamba umbane, izixhumi, iziguquli, izitshixo zomthwalo, izitishi zebhokisi, ukuwisa. iifuse, iintambo kunye nezifakelo zamandla.Wamkelekile ukubuza.
Iimpawu ze-insulator yeglasi
I-insulator yeglasi inezi mpawu zilandelayo:
(1) Amandla omatshini aphezulu, i-1 ~ 2 amaxesha aphezulu kune-porcelain insulator.
(2) Ukusebenza kuzinzile kwaye akukho lula ukuguga, kwaye ukusebenza kombane kuphezulu kunoko kwe-porcelain insulator.
(3) Inkqubo yemveliso incinci, umjikelo wemveliso umfutshane, ilungele ukwenziwa komatshini kunye nemveliso ngokuzenzekelayo, kwaye ukusebenza kakuhle kwemveliso kuphezulu.
(4) Ngenxa yokungafihli kwe-insulator yeglasi, kulula ukufumana iintanda ezincinci kunye neziphene ezahlukeneyo zangaphakathi okanye umonakalo ngexesha lokuhlolwa kwangaphandle.
(5) Ukuba kukho iziphene ezahlukahlukeneyo kumzimba weglasi we-insulator, iglasi iya kuphuka ngokuzenzekelayo, okubizwa ngokuba yi "self breaking".Emva kokuba i-insulator yaphukile, isando esishiyekileyo somnqwazi wentsimbi sigcina amandla athile omatshini kwaye sixhonywe emgceni, kwaye umgca usengaqhubeka nokusebenza.Xa umhloli womgca ehlola umgca, kulula ukufumana i-self-yaphukile i-insulator kunye nokubuyisela isithinteli esitsha ngexesha.Ngenxa yokuba i-insulator yeglasi ineempawu "zokuziqhekeza", akuyimfuneko ukwenza uvavanyo lokukhusela kwi-insulator kwinkqubo yokusebenza komgca, okuzisa ukukhululeka okukhulu ekusebenzeni.
(6) Izithinteli zeglasi zilula ngobunzima.Ngenxa yenkqubo yokuvelisa kunye nezinye izizathu, izinga "lokuziqhekeza" le-insulator yeglasi liphezulu, nto leyo eyingozi ebulalayo ye-glass insulator.
Uhlobo lwesithinteli sokuxhoma esihlanganisiweyo:
uhlobo olusemgangathweni, uhlobo oluxhathisayo longcoliseko, uhlobo lwe-DC, uhlobo olungqukuva, uhlobo lwe-aerodynamic, uhlobo locingo olusemhlabeni, lwenkqubo yoqhagamshelwano oluphezulu lukaloliwe olunombane.
1. Imveliso ye-insulator edibeneyo iqulethwe ngamacandelo amathathu: i-glass fiber epoxy resin pull-out rod, i-silicone irabha i-ambulera skirt kunye ne-hardware.Isiketi seambrela yerabha ye-silicone yamkela inkqubo yokutofa koxinzelelo oludityanisiweyo, esombulula ingxaki ephambili echaphazela ukuthembeka kwe-insulator ehlanganisiweyo, ukuwohloka kombane wonxibelelwano.Eyona nkqubo iphambili yokukrazula iyamkelwa ukudibanisa phakathi kwentonga yokutsala iglasi kunye nezixhobo, exhotywe ngenkqubo yokufumanisa impazamo ye-automatic acoustic.Inamandla amakhulu, imbonakalo enhle, umthamo omncinci kunye nobunzima obulula.Izixhobo ezifakwe igalvanized ziyakwazi ukuthintela umhlwa kunye nokubola, kwaye zingatshintshwa kunye ne-porcelain insulators.Ulwakhiwo oluthembekileyo, alonakalisi i-mandrel, kwaye inokunika umdlalo opheleleyo kumandla ayo omatshini.
2. Ukusebenza kombane okuphezulu kunye namandla aphezulu omatshini.I-tensile kunye ne-flexural ye-epoxy glass pull-out intonga elayishwe ngaphakathi iphezulu ngamaxesha angama-2 ngaphezu kwentsimbi eqhelekileyo kunye ne-8 ~ 10 amaxesha aphezulu kune-porcelain ephezulu, ephucula ngokufanelekileyo ukuthembeka komsebenzi okhuselekileyo.
3. Inokumelana nokungcoliseka okulungileyo, ukuxhathisa okulungileyo kokungcoliseka kunye nokumelana ne-flashover yongcoliseko olunamandla.I-voltage yayo emanzi yokumelana kunye nongcoliseko lokumelana nombane yi-2 ~ 2.5 amaxesha ee-porcelain insulators ezinomgama ofanayo we-creepage.Ngaphandle kokucoca, inokusebenza ngokukhuselekileyo kwiindawo ezingcoliseke kakhulu.
4. Umthamo omncinci, ubunzima obulula (kuphela i-1 / 6 ~ 1 / 9 ye-porcelain insulator yebakala elifanayo lombane), isakhiwo esilula kunye nokuthutha kunye nokufakwa.
5. I-silicone i-rubber umbrella skirt inomsebenzi omhle we-hydrophobic.Isakhiwo sayo esipheleleyo siqinisekisa ukuba i-insulation yangaphakathi ayichaphazeleki ngumswakama.Akukho mfuneko yovavanyo lokuthintela ukujongwa kwe-insulation kunye nokucoca, okunciphisa umsebenzi wokugcinwa kwemihla ngemihla.
6. Inokusebenza kakuhle kokutywinwa kunye nokuchasana okunamandla kombane.Impahla yesiketi se-ambrella iyaxhathisa ukuvuza kombane kwaye iphawula ukuya kuthi ga kwi-tma4 iNqanaba lesi-5, ngokuchasana nokuguga okuhle, ukuxhathisa kwe-corrosion kunye nokumelana nokushisa okuphantsi, okungasetyenziswa kwindawo ye-40 ℃ ~ - 50 ℃.
7. Inokumelana nempembelelo enamandla kunye nokumelana nokothuka, i-anti brittleness elungileyo kunye nokumelana nokunyuka, akukho lula ukwaphuka, ukugoba okuphezulu kunye namandla ajikelezayo, inokumelana noxinzelelo lwangaphakathi, amandla anamandla obungqina bokudubula, kwaye inokutshintshwa kunye ne-porcelain kunye ne-glass insulators.
8. Iimpawu zomatshini kunye nombane wechungechunge lwe-insulator edibeneyo zingcono kunezo ze-porcelain insulator, ezinomda omkhulu wokhuseleko lokusebenza.Yimveliso ehlaziyiweyo yentambo yamandla.
Iimpawu ze-insulator edibeneyo
1. Ixabiso elinguziro kukuziqhekeza kwaye kulula ukulibhaqa
Umphetho ojingayo odibeneyo uneempawu zexabiso eliziro lokuzaphula.Ngethuba nje ibonwa phantsi okanye kwi-helicopter, akukho mfuneko yokunyuka kwepali ukuze ibone isiqwenga ngeqhekeza, esinciphisa ukusebenza kwabasebenzi.
Ngokungeniswa kweemveliso ezivela kumgca wemveliso, isantya sokuziqhekeza sokusebenza sonyaka yi-0.02-0.04%, enokugcina iindleko zokugcinwa komgca.I-arc elungileyo kunye nokumelana nokungcangcazela.Ukusebenza, umphezulu omtsha we-insulator yeglasi etshiswe ngumbane usengumzimba weglasi ogudileyo kwaye unomaleko okhuselweyo woxinzelelo lwangaphakathi.Ngoko ke, isawagcina amandla awoneleyo okugquma kunye namandla omatshini.
Intlekele yokugabavula ebangelwa yi-conductor icing yenzeke amaxesha amaninzi kumgca we-500 kV.I-insulator yokuxhoma edibeneyo emva kwe-conductor galloping ayinayo i-attenuation ekusebenzeni kwe-electromechanical.
2. Ukusebenza kakuhle ukuzicoca kwaye akukho lula ukuguga
Ngokombonakaliso oqhelekileyo wesebe lamandla, i-insulator yeglasi ayilula ukuqokelela ukungcola kwaye kulula ukuyicoca, kwaye i-insulator yeglasi ehamba kumgca wasezantsi ihlanjwe icocekile emva kwemvula.
Isampula rhoqo i-insulators yeglasi kwimigca kwiindawo eziqhelekileyo ukulinganisa ukusebenza kwe-electromechanical emva kokusebenza.Amawaka edatha aqokelelweyo abonisa ukuba ukusebenza kwe-electromechanical ye-glass insulators emva kweminyaka eyi-35 yokusebenza ngokusisiseko kuhambelana naloo xesha lokunikezelwa, kwaye akukho nto yokuguga.
Umthamo oyintloko mkhulu, ukuhanjiswa kwamandla ombane kumtya kufana, kwaye i-dielectric engaguqukiyo yeglasi yi-7-8, eyenza i-insulator edibeneyo ibe ne-capacitance enkulu kunye nokusabalalisa umbane ofanayo kumtya, onceda ukunciphisa I-voltage ethwalwa sisigqugquzeli kufutshane necala le-conductor kunye necala lokumisa, ukuze kuncitshiswe uphazamiseko lukanomathotholo, ukunciphisa ilahleko ye-corona kunye nokwandisa ubomi benkonzo yesigqubuthelo seglasi.Inkqubo yokusebenza ibonakalise oku
Iimpawu zokusebenza kunye neemeko zenkonzo ye-insulator edibeneyo # iimpawu zokusebenza ze-insulator edibeneyo:
1. Umthamo omncinci kunye nobunzima obulula, malunga ne-1 / 5 ~ 1 / 9 ye-voltage efanayo ye-porcelain insulator, ekulungele ukuthuthwa kunye nokufakwa.
2. I-insulator edibeneyo inamandla amakhulu omatshini, isakhiwo esithembekileyo, ukusebenza okuzinzile kunye nomda omkhulu wokusebenza ngokukhuselekileyo, obonelela ngesiqinisekiso somgca kunye nokusebenza ngokukhuselekileyo.
3. I-insulator edibeneyo inomsebenzi ophezulu wombane.Isiketi seambrela yerabha ye-silicone ine-hydrophobicity elungileyo kunye nokuhamba, ukuchasana okuhle kokungcoliseka kunye nobuchule obunamandla bokuchasana nokungcoliseka kwe-flashover.Iyakwazi ukusebenza ngokukhuselekileyo kwiindawo ezingcoliseke kakhulu ngaphandle kokucoca ngesandla kwaye inokukhululeka ekugcinweni kwexabiso le-zero.
4. I-insulator edibeneyo ineempawu zokumelana ne-asidi kunye ne-alkali, ukuchasana nokuguga kobushushu kunye nokumelana nombane, ukusebenza kakuhle kokutywinwa, kwaye inokuqinisekisa ukuba ukufakwa kwayo kwangaphakathi akuchaphazeli umswakama.
5. I-insulator edibeneyo inokuchasana kakuhle kwe-brittleness, ukuxhathisa ukothuka okunamandla kwaye akukho ngozi ye-brittle fracture.
6. Ii-insulators ezihlanganisiweyo ziyakwazi ukutshintshwa kwaye zinokutshintshwa kunye ne-porcelain insulators.
Indlela yokugweba umgangatho we-insulator?
a.Umgangatho wokumelana nokugquma okufanelekileyo
(1) I-insulation resistance ye-insulators esanda kufakwa iya kuba enkulu okanye ilingane ne-500m Ω.
(2) Ukuxhatshazwa kwe-insulator ngexesha lokusebenza kuya kuba kukhulu okanye kulingane ne-300m Ω.
b.Umgaqo-siseko wesigwebo sokuwohloka kwe-insulator
(1) Ukuba ukuxhathisa kwe-insulator kungaphantsi kwe-300m Ω kwaye kukhulu kune-240m Ω, kunokugwetywa njengexabiso eliphantsi le-insulator.
(2) Ukuba ukunyanzeliswa kwe-insulator kungaphantsi kwe-240m Ω, kunokugwetywa njenge-insulator ye-zero.
Le ndlela ayisoloko isetyenziselwa ukuvavanya ukuxhathisa kwe-insulation ye-composite insulation.
Ii-insulators zokumisa zisetyenziswa ngokubanzi kwinkqubo yamandla.Ii-insulators ze-FRP zinobomi obude benkonzo kwaye zithandwa yinkqubo yamandla.Umgangatho wee-insulators ezimisiweyo kwimarike awulingani.Kukho izithinteli zokuxhoma inkunkuma ezisetyenzisiweyo ezithengiswayo.Kuyimfuneko ukuthelekisa iimpahla xa kuthengwa i-insulators yokumiswa.Ukuba ufuna ukwazi malunga nendibano ye-insulator yokunqunyanyiswa kunye nokufumana imifanekiso yoqhagamshelo lwe-insulator, wamkelekile ukuba udibane nenkampani yezixhobo zamandla kaJoson, umenzi womgangatho ophezulu wokuxhoma isigqubuthelo.Amandla kaJosen abonelela ngezithinteli zombane ezixhonywe ngeporcelain ezinevoltage ephezulu, ii-330kV ukumiswa kwe-insulators, i-500kV suspension insulators, 10kV suspension composite insulators, ukunqunyanyiswa insulators ukumelana nongcoliseko, ukunqunyanyiswa kwesiqhelo insulators, disk suspension glass insulators kunye suspension.
Ixesha lokuposa: Apr-18-2022