Shenhai Kuputika-Uchapupu
Mukushandiswa kwemagetsi asingaputike, insulation zvinhu zvinopatsanurwa kuita yakasimba uye mvura mhando, yakanyatsogadzirirwa maapplication aya, kusiyana neyakakura insulation mapoka.
Solid Insulation Materials
Zvinonzi se “solid-state insulation zvinhu,” izvi zvinhu zvinoramba zvakasimba pasi pemamiriro ekushanda. Ichi chikamu chinosanganisira zvinhu senge insulating varnish, ayo pakutanga ari mvura asi anosimba pakushandiswa.
Inowanzo shandiswa yakasimba yekuvharisa zvinhu mumidziyo yemagetsi inoputika-inoputika yakanyorwa pazasi.
| Material giredhi | Kuenzaniswa neiyo Tracking Index (CTI) | Zita rechinhu |
|---|---|---|
| I | 600≤CTI | Ceramics (glazed), mica, girazi |
| II | 400≤CTI＜600 | Melamine asbestos arc plastiki, silicone organic asbestos arc inopikisa plastiki, unsaturated polyester aggregate |
| III-a | 175≤CTI＜400 | Polytetrafluoroethylene plastiki, melamine girazi fiber plastiki, epoxy girazi jira bhodhi rakabatwa nearc inodzivirira pendi pamusoro |
| III-b | 100≤CTI＜175 | Phenolic plastiki |
Zvinhu izvi zvakagadzikwa zvichienderana neComparative Tracking Index yavo (CTI), chiyero chekushanda kwemagetsi kwepamusoro. Zvisinei, michina yavo, thermal, uye zvinhu zvemakemikari zvinogona kusiyana zvakanyanya, zvinoda kunyatsosarudzwa kunoenderana nemamiriro ekunze ekushandiswa, kusanganisira kufunga kwesimba remagetsi, kupisa kuramba, uye kusimba kwemakemikari.
Ceramic (Glazed) Zvishandiso
Inosanganisira inorganic isiri-metallic insulation zvinhu, izvi zvinoumbwa ne sintering metal oxides uye isiri-oxygen metal compounds. Hunhu hwavo hunosanganisira kuomarara kwe1000 ~ 5000HV, kusimba simba kubva ku26 ~ 36 MPa, compressive simba kubva 460 ~ 680 MPa, kunyungudika kunodarika 2000°C, kuwedzera kwekushisa kwepasi, uye yakakwirira kugadzikana kwemakemikari uye kushorwa nekuora.
Polytetrafluoroethylene (PTFE)
Ichi fluoroplastic zvinhu zvinotsigira kushandiswa kwenguva refu mukati metembiricha kubva -180°C kusvika 260°C.. Yakanyatsogadzikana nemakemikari, inoshingirira mukuora, inoratidza yakaderera friction coefficient, uye ine yakakosha kupisa kwekuwedzera coefficient.
Phenolic Plastiki
A thermosetting plastiki, inozivikanwa zvekutengesa se “bakelite” kana “phenolic board,” inogona kumira tembiricha inodarika 3000 ° C uye inopa yakanakisa kupisa kusamira uye kugadzikana kwemakemikari, kunyangwe iri brittle uye isingamiri kune alkali corrosion.
Kuwedzera kune yakasimba insulation zvinhu zvinotaurwa, midziyo yemagetsi inoputika-inoputika inoshandisa zvakanyanya zvakasiyana-siyana zvakasimba zvinodzivirira zvinhu, kusanganisira mapurasitiki emidziyo yekuisa insulating uye zvimwe zvinhu zvinobatsira mumamotors-anoputika.
Liquid Insulation Materials
Izvi zvinoreva insulating zvinhu zvinowanzowanikwa mumhando yemvura, semafuta etransformer, uye zvinhu senge insulating varnish inoshandiswa pakuisa coil, iyo inosimba mushure mekurapa kwakananga asi ichiri kutorwa semvura insulators.
1. Transformer Mafuta
• Yakakosha pakuputika-isina kuputika midziyo yemagetsi yakadai sematransformer, mafuta aya anofanira kusangana nemipimo chaiyo:
• Ignition point isiri pasi pe300°C.
• Chinopenya chisiri pasi pe200°C (mukombe wakavharwa).
• Kinematic viscosity isingapfuuri 1*10?? m²/s pa25°C.
• Dielectric breakdown simba rinenge 27kV.
• Volume resistivity kanenge 1*10??? m pa25°C.
• Dururira poindi kwete kupfuura -30°C.
• Acidity (neutralization kukosha) kusvika pa 0.03 mg/g (potassium hydroxide).
Transformer mafuta, kunyanya mineral insulating mafuta inosanganisira alkanes, cycloalkanes, uye unsaturated anonhuwirira hydrocarbons, inopa yakanakisa insulating hunhu uye kuchembera kugadzikana. Zvisinei, kushandiswa kwayo mumidziyo yemugodhi yeKirasi I inorambidzwa nekuda kwekushatiswa kwezvivakwa zvayo zvekudzivirira pamusoro pekushandiswa kwenguva refu..
2. Varnish
Inoshandiswa kuisa pamuviri macoil emagetsi mumidziyo isingaputike, insulating varnish inovandudza kugona kwavo kwemagetsi. Inowanikwa mu-solvent-based uye solvent-isina mafomu, mavarnish aya anogadzirwa neakasikwa kana masynthetic resin akasanganiswa nemhando dzakasiyana siyana sebenzene uye madoro erudzi rwe solvent-based., uye synthetic resins, solidifying agents, uye anoshanda akaonda senge styrene yemhando isina solvent.
Mhando mbiri dzevarnish dzinopa akawanda sarudzo kuti dzienderane nezvinodiwa zvakasiyana zvekushandisa, kuve nechokwadi chekuchinjika kune chaiyo yekushanda zvinodiwa.