Inona no fitaovana insulating fampiasa matetika ho an’ny motera

Insulating materials are materials that are non-conducting under allowable voltage, but not absolutely non-conducting materials. Under the action of a certain external electric field strength, conduction, polarization, loss, breakdown and other processes will also occur, and long-term use will also occur Ageing. The resistivity of this product is very high, usually in the range of 1010～1022Ω·m. For example, in a motor, the insulating material around the conductor isolates the turns and the grounded stator core to ensure the safe operation of the motor.

Ny iray: Sarimihetsika sy fitaovana mitambatra ho an’ny injeniera elektrika

Maro ny polymère molecular avo lenta azo amboarina ho sarimihetsika manana toetra sy fampiasana samihafa. Ny toetran’ny sarimihetsika elektrika dia ny hateviny manify, ny malefaka, ny fanoherana ny hamandoana, ary ny tanjaky ny herinaratra sy ny mekanika tsara. Ny sarimihetsika elektrika fampiasa matetika dia sarimihetsika polyester (ambaratonga E), sarimihetsika polynaphthyl ester (ambaratonga F), sarimihetsika polyamide aromatic (ambaratonga H), sarimihetsika polyimide (ambaratonga C), sarimihetsika polytetrafluoroethylene (ambaratonga H). Ampiasaina indrindra ho insulation famonosana motera coil sy insulation liner.

2: Insulation mika sy ny vokatra

Misy karazany maro ny mika voajanahary. Ny mika fampiasa matetika amin’ny insulation elektrika dia muscovite sy phlogopite. Muscovite dia tsy misy loko sy mangarahara. Ny phlogopite dia manakaiky ny famirapiratana metaly na semi-metaly, ary ny mahazatra dia volamena, volontany na maitso maitso. Muscovite sy phlogopite dia manana fananana elektrika sy hafanana tsara, fitoniana simika ary fanoherana corona tsara. Izy io dia azo peeling amin’ny silaka manify malefaka miaraka amin’ny hatevin’ny 0.01 ~ 0.03 mm. Izy io dia akora fototra manan-danja amin’ny fanamboarana fitaovana insulation avo lenta.

3: vokatra laminated

Ny vokatra vita amin’ny motera fampiasa matetika dia vita amin’ny lamba fitaratra (na harato) atsoboka amin’ny lakaoly (toy ny epoxy resin, silicone resin na phenolic resin) ary avy eo mafana. Anisan’izany, ny phenolic fitaratra lamba birao manana hery mekanika sasany sy ny elektrônika fananana: fa mahantra cleavage fanoherana sy ny ankapobeny mildew fanoherana, izay mety amin’ny fanaovana ankapobeny insulating faritra. Epoxy phenolic resin fitaratra fitaratra birao manana hery mekanika avo, ny hamandoana fanoherana, herinaratra fampisehoana sy ny bobongolo fanoherana. Izy io dia mety amin’ny motera avo lenta ho ampahany manaitra, ary mety amin’ny fampiasana any amin’ny faritra mafana mando. Ny biraon’ny lamba vita amin’ny fitaratra silisiôma organika dia manana fanoherana avo lenta (kilasy H) ary fampisehoana elektrika tsara, saingy ny tanjaky ny mekanika dia ambany noho ny an’ny epoxy phenolic fitaratra lamba. Mety amin’ny faritra insulation mahatohitra hafanana ary mety amin’ny faritra mafana mifangaro. Laminates dia matetika ampiasaina ho slot wedges, slot gaskets, insulating pads sy wiring boards amin’ny kely sy antonony-habe maotera.