Kuyini i-ANSI Ceramic Bushing?

Ama-bushing e-ANSI ceramicyimikhiqizo ye-ceramic bushing ehambisana nezindinganiso zobuchwepheshe ezibekwe yi-American National Standards Institute (ANSI). Zenzelwe ngqo ukuhlangabezana nezidingo zokushisa ezijwayelekile, ukwesekwa kwemishini, kanye nokuvikelwa kokuphepha kwemishini kagesi enamandla aphezulu eNyakatho Melika kanye nemakethe yomhlaba wonke. Ihlanganisa izakhiwo ezinhle kakhulu zezinto zokushisa nezindinganiso eziqinile zezindinganiso ze-ANSI. Ingenye yezigaba eziyinhloko zezingxenye zokushisa ezinamandla aphezulu ohlelweni lwamandla.
I. Incazelo Eyinhloko: Kuyini i-I-ANSI Ceramic Bushing?
Ama-bushing e-ANSI ceramic awabhekiseli efomini ethile, kodwa aklanywe, akhiqizwa, futhi ahlolwe ngokuhambisana nezindinganiso ze-ANSI ezifanele (njenge-ANSI C37 series “High Voltage Switchgear Standards”, i-ANSI/IEEE C57 series “Transformer Standards”, njll.). Ingqikithi ukuqinisekisa ukuthembeka kokufakwa kokushisa, ukuzinza komshini, kanye nokushintshana komkhiqizo endaweni enamandla kagesi amaningi ngokusebenzisa ubukhulu obujwayelekile, amapharamitha okusebenza, kanye nezinqubo zokuhlola, ezifanele kakhulu amagridi kagesi aseNyakatho Melika kanye namaphrojekthi aphesheya amukela amazinga e-ANSI.
II. Kulandelwe Izindinganiso Eziyinhloko ze-ANSI
Ukuklama nokukhiqizwa kwe-ANSI ceramic bushings kudingeka kuhambisane nezindinganiso eziningi eziqondiwe. Izindinganiso ezivamile eziyinhloko zifaka:
​I-ANSI C37.04​: Icacisa amapharamitha alinganisiwe, izinga lokufakwa kokushisa, kanye nezindlela zokuhlola (njenge-voltage yokumelana nemvamisa yamandla, i-voltage yokumelana nokukhanya kombani) ye-switchgear ene-voltage ephezulu (kufaka phakathi ama-bushings);
​I-ANSI C37.34Izidingo zobuchwepheshe zama-bushings ane-voltage ephezulu, okuhlanganisa ukubekezelelana okunobukhulu, imithwalo yemishini (ukucindezela, ukugoba, ukugoba), kanye nokusebenza kokuqina kokushisa;
​ANSI/IEEE C57.19.01Izindinganiso zama-bushings e-transformer, ezichaza ngokucacile i-voltage elinganisiwe, i-current elinganisiwe, umkhawulo wokunyuka kwezinga lokushisa, kanye nokusebenza kokuvala ama-bushings;
Uchungechunge lwe-ANSI C29​: Amandla omshini kanye nezindinganiso zokuhlola ukusebenza kukagesi zama-insulators angaphandle (kufaka phakathi ama-bushings angemuva/adlula odongeni) (njengokugoba kwamandla, ukuhlolwa kokungcoliswa komoya);
Lezi zindinganiso ziqinisekisa ukuhambisana (njengobukhulu bokufakwa obuhambisanayo) kanye nokuthembeka (ngokuhlola okuqinile okuhlanganisiwe) kwama-bushings e-ANSI ceramic phakathi kwabakhiqizi abahlukene nama-batches.
III. Izici Zesakhiwo Nezinto Ezibonakalayo (Ezilungiselelwe Ngokusekelwe Emazingeni E-ANSI)
Isakhiwo se-ANSI ceramic bushings sifana nese-ANSI ceramic bushings. Kodwa-ke, ngenxa yezidingo eziningiliziwe zezindinganiso ze-ANSI, ukukhethwa kwezinto kanye nomklamo onemininingwane kugcizelela kakhulu ukuzivumelanisa nezimo okujwayelekile:
1. Isivikelo Sobumba
Ukukhetha Izinto: Sebenzisa ngokukhethekile i-aluminium oxide ceramic ehlanzekile kakhulu (okuqukethwe kwe-Al₂O₃ ≥ 95%) noma i-silicon dioxide ceramic (njengoba kuchazwe yi-ASTM C609 standard njenge-“electric ceramic”) ukuqinisekisa ukumelana nokushisa (≥ 10¹³ Ω·cm), amandla e-dielectric (≥ 15 kV/mm), kanye namandla omshini (amandla okugoba ≥ 150 MPa) ahlangabezana nezindinganiso.
Umklamo Wesakhiwo:
* Ama-bushing angaphandle avame ukuba nenani kanye nesikhala seziketi zesambulela ezichazwe yizindinganiso ze-ANSI (njengomehluko wobubanzi kanye nobude besandiso sesambulela sesigaba ngasinye), ukuze kuhlangatshezwane nezidingo zebanga lokuhamba (njengesilinganiso sokuhamba sesambulela esingu-10 kV ≥ 25 mm/kV);
* Ama-bushing angaphakathi ngokuvamile angamasilinda abushelelezi noma aneziketi zesambulela ezingajulile, agxile ebukhulu obuncane (okuhambisana nezidingo zokubekezelela ubukhulu be-ANSI C37.34, njengokuphambuka kobubanzi ≤ ± 0.5 mm).
2. Izesekeli Zensimbi
Izimbozo/imicu yensimbi ekugcineni kokubili isebenzisa izinto zensimbi noma zethusi ngokuhambisana nezindinganiso ze-ANSI B16.5 (njengensimbi yekhabhoni egayiwe, insimbi engagqwali 304), okuqinisekisa ukumelana nokugqwala.
Usayizi wama-terminal okuxhuma ulandela ngokuqinile amazinga e-ANSI (njengobubanzi bembobo yebholidi, ukucaciswa kwentambo), okuqinisekisa ukushintshana okuqondile nama-busbar asetshenziswa njalo kanye nezixhumi zekhebula eNyakatho Melika (asikho isidingo sokuguqulwa okwengeziwe).
3. Ukuvala Nokuvikela(ezindaweni zangaphandle/ezimanzi) Ngokuhambisana nezidingo ze-ANSI C57.19.01, kwamukelwa umklamo ovalwe kabili (ngerabha ye-silicone eshisa kakhulu noma i-epoxy resin egcwalisa igebe phakathi komzimba we-ceramic kanye nokunamathiselwa kwensimbi), futhi "ukuhlolwa kokucwiliswa emanzini" (njengokumelana nokushisa okusele okungu-≥ 100 MΩ ngemva kwamahora angu-24 okucwiliswa emanzini) ukuqinisekisa ukuthi akumanzi emvuleni enkulu nasezindaweni ezinomswakama ophezulu.