Shenhai Kuphulika-Umboni
Pamagetsi osaphulika osaphulika, zida zosungunulira zimasiyanitsidwa kukhala zolimba komanso zamadzimadzi, opangidwa makamaka kwa mapulogalamu awa, mosiyana ndi magulu ambiri a insulation.
Zida Zolimbitsa Thupi
Amatchulidwa ngati “zolimba-state kutchinjiriza zipangizo,” izi ndi zinthu zomwe zimakhala zolimba pansi pazikhalidwe zogwirira ntchito. Gululi limaphatikizapo zinthu monga ma varnish oteteza, zomwe poyamba zimakhala zamadzimadzi koma zolimba zikagwiritsidwa ntchito.
Zida zamagetsi zomwe zimagwiritsidwa ntchito nthawi zambiri pazida zamagetsi zosaphulika zalembedwa pansipa.
| Gawo lazinthu | Poyerekeza ndi Tracking Index (CTI) | Dzina lachinthu |
|---|---|---|
| Ine | 600≤CTI | Zoumba (zonyezimira), mica, galasi |
| II | 400≤CTI＜600 | Melamine asbestos arc pulasitiki, silicone organic asbestos arc pulasitiki yosagwira, unsaturated polyester aggregate |
| III-a | 175≤CTI＜400 | Polytetrafluoroethylene pulasitiki, pulasitiki melamine galasi CHIKWANGWANI, bolodi lansalu yagalasi ya epoxy yokhala ndi utoto wosamva arc pamwamba |
| III-b | 100≤CTI＜175 | Phenolic pulasitiki |
Zida izi zimasinthidwa kutengera Comparative Tracking Index (CTI), muyeso wa ntchito yamagetsi yachiphamaso. Komabe, makina awo, kutentha, ndi mankhwala katundu akhoza kusiyana kwambiri, kufunikira kosankha mosamala malinga ndi momwe chilengedwe chimagwirira ntchito, kuphatikizapo kuganizira mphamvu zamakina, kukana kutentha, ndi kukhalitsa kwa mankhwala.
Ceramic (Zowala) Zipangizo
Zokhala ndi inorganic non-metal insulation zinthu, izi amapangidwa ndi sintering zitsulo oxides ndi sanali mpweya zitsulo mankhwala. Makhalidwe awo akuphatikizapo kuuma kwa 1000 ~ 5000HV, kulimba kwamphamvu kuchokera 26 ~ 36 MPa, compressive mphamvu kuchokera 460 ~ 680 MPa, malo osungunuka opitilira 2000 ° C, otsika matenthedwe kukula, ndi kukhazikika kwa mankhwala komanso kukana dzimbiri.
Polytetrafluoroethylene (PTFE)
Fluoroplastic izi zimathandizira kugwiritsidwa ntchito kwanthawi yayitali kutentha kuchokera -180 ° C mpaka 260 ° C.. Ndizokhazikika pamankhwala, kugonjetsedwa ndi dzimbiri, amawonetsa kugundana kocheperako, ndipo ili ndi gawo lalikulu lokulitsa matenthedwe.
Phenolic Pulasitiki
Pulasitiki ya thermosetting, kudziwika ngati malonda “bakelite” kapena “phenolic board,” imatha kupirira kutentha kopitilira 3000 ° C ndipo imapereka kukana kotentha kwambiri komanso kukhazikika kwamankhwala, ngakhale ndi yolimba komanso yosagonjetsedwa ndi dzimbiri za alkali.
Kuwonjezera pa zipangizo zolimba zotetezera zomwe zatchulidwa, Zida zamagetsi zomwe sizingaphulike zimagwiritsa ntchito kwambiri zinthu zosiyanasiyana zolimba zotsekera, kuphatikiza zida za pulasitiki zopangira zida zotsekera ndi zida zina zothandizira pama motors osaphulika.
Zamadzimadzi Insulation Zida
Izi zikutanthauza zinthu zotsekera zomwe zimapezeka ngati madzi, ngati mafuta a transformer, ndi zinthu monga vanishi wotsekera zomwe zimagwiritsidwa ntchito poyika koyilo, zomwe zimalimba pambuyo pa mankhwala enaake komabe zimatengedwa ngati zoteteza madzi.
1. Mafuta a Transformer
• Zofunikira pazida zamagetsi zomwe sizingaphulike monga ma transfoma, mafuta awa ayenera kukwaniritsa miyezo yeniyeni:
• Malo oyatsira osatsika 300°C.
• Kuthwanima kosachepera 200°C (chikho chotsekedwa).
• Kinematic mamasukidwe akayendedwe osapitirira 1*10?? m²/s pa 25°C.
• Dielectric kuwonongeka mphamvu osachepera 27kV.
• Volume resistivity osachepera 1*10??? m pa 25 ° C.
• Thirani mfundo yosapitirira -30°C.
• Kuchuluka kwa asidi (mtengo wa neutralization) mpaka 0.03 mg/g (potaziyamu hydroxide).
Transformer mafuta, makamaka mchere woteteza mafuta opangidwa ndi alkanes, cycloalkanes, ndi unsaturated onunkhira hydrocarbons, imapereka zabwino zotetezera komanso kukhazikika kwa ukalamba. Komabe, kugwiritsidwa ntchito kwake m'zida zamigodi za Class I ndizoletsedwa chifukwa chakuwonongeka kwa zida zake zotsekera pakugwiritsa ntchito nthawi yayitali..
2. Valashi
Amagwiritsidwa ntchito poikira makhoyilo amagetsi pazida zosaphulika, kutsekereza varnish kumawonjezera mphamvu zawo zamagetsi zamagetsi. Amapezeka mumitundu yotengera zosungunulira komanso zopanda zosungunulira, ma vanishi awa amapangidwa ndi utomoni wachilengedwe kapena wopangira kuphatikiza ndi zosungunulira zosiyanasiyana monga benzene ndi ma alcohols amtundu wa zosungunulira., ndi zopangira zopangira, zolimbitsa thupi, ndi zowonda zogwira ntchito monga styrene zamtundu wopanda zosungunulira.
Mitundu yonse iwiri ya varnish imapereka zosankha zingapo kuti zigwirizane ndi zosowa zosiyanasiyana zamagwiritsidwe, kuwonetsetsa kusinthika ku zofunikira zinazake zogwirira ntchito.