ʻIkepili o ka Insulation Structure o High Voltage Nui a Me Medium Motors

2022-12-05


1. ʻO ke ʻano hoʻokaʻawale ʻana o ka mīkini DC


  Armature insulation structure of ʻIke DC is composed of winding insulation, commutator insulation, support insulation, wire tie insulation and interlayer insulation. Due to the different types, voltage levels and binding materials of armature windings, the insulation structure of armature varies in some places.


  1.1 ʻO ka hoʻopulapula wili wili lima ʻokoʻa me nā ʻano hana wili ʻokoʻa. I mea e hoʻomaikaʻi ai i ka hana moistureproof, hoʻohana pinepine nā wili armature o nā kaʻa DC nui i ka insulation mau.


  1.1.1 Hoʻohana ʻia ka hoʻohuli ʻana i ka insulation no ka hoʻokaʻawale ʻana i nā ʻāpana pili i loko o ka wili hoʻokahi a kau wale i ka volta inter chip. ʻO ka huli ʻana e hoʻohuli i ka insulation o nā kaʻa DC nui e hoʻohana maʻamau i ka hapalua lapped layer o 0.1mm mica tape ma waho o ke uea keleawe ʻole, a i ʻole e hoʻohana pololei i ka uea aniani pālua enamelled ikaika kiʻekiʻe. Hoʻohana maʻamau nā motika liʻiliʻi a me ka nui o ke aniani ʻelua i ʻōwili ʻia i ka uea. No ka papa F film insulated nui motors, 0.05mm lahilahi kiʻiʻoniʻoni hiki ke semi laminated a sintered ma luna o ka conductor, a i ole he papa o ke aniani lipine hiki ke hoohui. Hoʻopili ʻia nā mīkini liʻiliʻi a me nā mīkini liʻiliʻi me kahi papa o 0.05mm kiʻiʻoniʻoni a i ʻole "sintered" ka kiʻiʻoniʻoni ma luna o ke alakaʻi.


  1.1.2 ʻO ka insulation nui no ka hoʻokuʻu ʻana i ka lepo e kau i ka volta piha ma waena o ka coil a me ka hao hao. 1000V nui kaʻa: 0.14mm alkyd mika lipine he hapalua i hoʻopaʻa ʻia i ʻekolu papa. 660 volt grade medium motor: 0.14 mm alkyd mica tape i hoʻopaʻa ʻia i ka hapalua me nā ʻāpana ʻelua (hoʻomau mau ʻia) a i ʻole 0.2 mm mica foil i ʻōwili ʻia me ʻelua papa (ka hoʻopaʻa lima). ʻO ke kiʻi ʻoniʻoni ʻoniʻoni nui ka papa F: 0.05mm polyimide kiʻiʻoniʻoni i hoʻopaʻa ʻia me ka hapa ʻehā. ʻO nā kaʻa kaʻa kaʻa liʻiliʻi a me ka papa F a i ʻole ka papa H: 0.05mm kiʻiʻoniʻoni polyimide ka hapalua i hoʻopaʻa ʻia me 2-3 papa.


  1.1.3 Hoʻomalu nui ka lipine lole pale i ka insulation nui mai ka pōʻino mechanical. ʻO ka maʻamau, hoʻohana ka motika insulated Class B i ka hapalua lapped a i ʻole ka papa ʻeha ʻeha o ka lipine aniani 0.1mm. ʻAʻole pono ka hoʻokaʻawale kiʻiʻoniʻoni papa F ma ka maʻamau. I kekahi manawa, no ka hilinaʻi, hoʻohana pū ʻia ka lipine aniani 0.1mm no ka hapalua lapping.


  1.1.4 ʻO ke ʻano o ka hoʻokuʻu ʻana a me nā mea o ka hopena wili wili lima e like me nā mea o ka ʻaoʻao pololei, koe naʻe ka hiki ke hoʻopili ʻia ka insulation i ka honua 1-2 papa ma lalo o ka ʻāpana pololei. ʻOiai aia ka volta piha ma ka hopena o ka honua a ma waena o nā papa, ʻo ia ka mea ma muli o ka noho ʻana o ka insulation interlayer a me ke kākoʻo insulation, a me ka hoʻomaikaʻi ʻana i nā kūlana hoʻomaha. No laila, pono e hoʻemi pono ka insulation ma ka hopena o ka wili i ka wā o ka hana ʻana.


  1.2 Hoʻopili palekana o ka wili i loko o ka slot


  1.2.1 Na ka insulation slot e pale aku i ka wili mai ka wili ʻia e ka burr ma ka slot a i ʻole ka lihi ʻoi o ka slot. Papa B insulation: 0.2mm polyester film melemele aniani varnished lole composite insulation, 0.2mm polyester film green shell pepa composite insulation, a i ole 0.2mm green shell pepa ma kahi. Papa F kiʻiʻoniʻoni ʻoniʻoni: 0.15 mm polyimide lole aniani melemele a i ʻole 0.1 mm polyimide lole pena.


  1.2.2 E pale ka wili i ka wili ana mai ka poino mechanical i ka wiliwili ana. Hoʻohana ka papa B insulation 0.5mm alkyd soft mica plate. Hoʻopili ka papa F insulation i ka papa lole aniani diphenyl ether a i ʻole silicone organic mica board.


  1.3 Hōʻike ʻia ka ʻōnaehana insulation paʻa ma ka hope o ka coil armature ma o ka lawe ʻana i ka ʻehā papa rana e wili ana me ka lua ea ma waena o ka hopena ma ke ʻano he laʻana:


  1.3.1 Kākoʻo i ka hoʻokuʻu ʻana ʻO ka moʻa nui ka papa B ka hoʻokaʻawale ʻana, ma ke ʻano maʻamau, ua uhi ʻia ka ʻaoʻao o loko me ka lipine aniani 0.1mm, ua uhi ʻia ka ʻaoʻao waho me ka lipine alkyd mica 0.14mm, ua uhi ʻia ka ʻaoʻao waho me nā papa ʻelua o ka mika palupalu 0.3mm. paʻa, a ʻo ka ʻaoʻao o waho he hapa ia me ka 0.03mm polyester film lipine a me ka lipine aniani 0.1mm. Hoʻohana maʻamau ka insulation papa F i ka lipine mica organik silicone a me ka pā mika e hoʻololi i ka lipine mika alkyd.


  1.3.2 Loaʻa i ka insulation interlayer hope i ka volta piha ma waena o nā ʻāpana o nā coils a pale i nā coils mai ka ʻoki ʻana i kekahi. Hana ʻia ka papa B insulation i ʻelua papa o 0.5mm cushion mica plate, a ua wahī ʻia me ka lole aniani 0.1mm e pale aku ai i ka lele ʻana i ka wā o ka hana. Hana ʻia ka insulation Class F me ka silicon organic mica plate a i ʻole ke kiʻi ʻoniʻoni Class F.


  1.3.3 E hoʻopaʻa ʻia ka uea kila e hoʻokaʻawale i ka uea kila mai ka wili ʻana a pale i ka wili mai ka wili ʻia e ka uea kila. Ma kahi kokoke i ka wili, e ʻeha mua ʻia kahi papa o 0.6mm melemele insulating pahu pahu, ʻelua ʻāpana o 0.5mm cushion mica board e ʻeha i waho (i uhi ʻia me ka lole aniani), a ʻo kahi papa o 1mm melemele insulating cardboard e ʻeha ma waho. , a e hoʻopaʻa ʻia kēlā me kēia papa me ka lipine fiber aniani. No ka pale ʻana i ka nalo ʻana, ʻoi aku ka nui o ka insulation o ka uea kila ma mua o 8-15mm ākea ma mua o kēlā me kēia ʻaoʻao o ke kaula hao. No ka kaupalena ʻana i ka nalowale o kēia manawa i loko o ka pahu kila, e kau ʻia kahi papa o 0.2mm asbestos pepa ma waena o kēlā me kēia 10 huli uea kila e hoʻokaʻawale iā lākou mai kekahi i kekahi. No ka Class F insulation me ka uea kila, hoʻohana ʻia ka papa lole aniani diphenyl ether a me ka silicone organic micro board. Inā hoʻohana ʻia ka lipine weft free no ka hoʻopaʻa ʻana i nā wēlau, ʻaʻohe pono e hoʻokaʻawale.


  1.3.4 ʻO ka hoʻoheheʻe ʻana o ka Commutator Mica ka hana o ka hoʻokaʻawale ʻana i waena o nā lau a me ka hoʻonui ʻana i ka elasticity commutator i ka commutator. Pono ʻia ka liʻiliʻi o ka ʻōpala. ʻO ka maʻamau, hoʻohana ʻia ka 1.0mm a i ʻole 1.1mm commutator mica plate 5531. Hoʻohana ʻia ʻo Silicone organic mica board no ka insulation Class F. Hāʻawi ka V-ring i ka volta i ka honua i ka commutator, a me ka ikaika paʻa o ke apo kaomi ma ka commutator. Hoʻokumu ʻia ia e ka pā wela 5238 shellac mika, me ka mānoanoa o 2 mm ma 1000 volts. ʻO ka insulation papa F ʻo ia ka pā mika organika silika. I mea e pale aku ai i ka lepo mai ke komo ʻana i ka 3 ° alo o ka commutator, ua uhi ʻia ka commutator a hoʻopaʻa ʻia me ka pena epoxy phenolic a me 1053 silicon organic resin no ka Class F insulation. I mea e pale aku ai i ka lele ʻana o ke apo V i ka wā o ka hana ʻana, e hoʻopaʻa ʻia ke apo me ke kaula aniani aniani, kāʻei pulu aniani a i ʻole kāʻei fiber aniani weft free.


  1.3.5 Hoʻomaʻamaʻa insulation holoʻokoʻa o ka armature Ma hope o ka hoʻokuʻu ʻia ʻana, e hoʻopaʻa ʻia ka armature me ka pena 1032 a i ʻole 3404 no ʻekolu manawa e hoʻomaikaʻi ai i ka pale ʻana i ka wai, a e pīpī ʻia ka ʻili me ka 1321 a i ʻole 8363 pena enamel hina e hoʻomaikaʻi ai i ka lehu, ka aila a me ka lepo. kūʻē.


  1.4 Pole insulation o ka nui pole insulation structure of DC motor: pale i ka voluma o ka pole coil nui i ka honua.


  1.4.1 Hana ʻia ke kino o ke kino electrode i hoʻoheheʻe ʻia me ka lole aniani phenolic epoxy ma ke kaomi wela, me ka mānoanoa o 4mm.


  1.4.2 E ʻōwili i ʻelua ʻāpana o ka lole aniani 0.1mm, a laila e ʻohi i ʻelima mau ʻāpana o ka 0.2mm alkyd mica foil ma waho, a e ʻōwili i ʻelua mau ʻāpana o ka lole aniani 0.1mm a puni ka papa o waho. E hoʻopili ʻia ka pena epoxy phenolic ma waena o nā papa, a e hao ʻia kēlā me kēia papa me ka hao uila.

1.4.3 Uku wili wili i ka lepo 0.14mm mika lipine he hapalua lapped no ekolu papa, a 0.1mm aniani puluniu lipine he hapalua lapped no ka papa hookahi (ai ole 0.17 * 25B papa adhesive mica tape 5438 he hapalua lapped no eha papa, a kaomi wela). Hoʻokahi papa o 0.2 mm polyester film aniani lole composite insulation no ka pahu pahu, a hoʻokahi papa o 0.5 mm epoxy phenolic lole aniani no ka pahu pahu lalo cushion strip.


  1.4.4 ʻO ka wili pole nui he hoʻokahi-layer pole wili me ka insulation. ʻEhā mau ʻāpana o ka lole aniani phenolic epoxy 0.1mm i hoʻopaʻa ʻia ma waena o nā huli a me ke kaomi wela. Hoʻopili ʻia ka huli mua a me ka hope ʻelua me ka lipine mika 0.14mm a me ka lipine aniani 0.1mm. Multilayer nui pole wili, kiʻekiʻe ikaika enamelled lua aniani puluniu wili uwea a pālua aniani puluniu wili uwea no ka huli e hoohuli insulation. Hoʻopili ʻia kahi papa o ka lipine aniani 0.1mm ma waho no ka pale ʻana a me ka hoʻokaʻawale ʻana, a hoʻokomo ʻia i ka pena 3404 i hoʻokahi manawa. ʻO ka wili ʻana (equalizing winding): 0.14mm mika lipine ua hapa ʻia i loko o ʻekolu papa, 0.1mm lipine aniani ka hapalua i hoʻopaʻa ʻia i loko o ka papa hoʻokahi, a ua hoʻopaʻa ʻia i ka pena 3404 (1kV grade). Mea holoi hoʻokaʻawale, 3240 pepa epoxy, pena me 3404 pena. Pili ka mānoanoa i ka mamao kolo. ʻO ka mālama ʻana i ka insulation o ka pou nui: e hoʻoinu i ka pena 3404 i hoʻokahi manawa e hoʻonui ai i ka conductivity thermal a me ka pale ʻana i ka wai.


3240 pepa epoxy


  1.5 Hiki ke ho'opa'a 'ia ka wili pole commutating ma nā 'ano like 'ole ma muli o ke 'ano like 'ole o ka mana a me ka ho'ohana 'ana, a he 'oko'a iki nō ho'i kona 'ano ho'olale. Hoʻopili ʻia ka wili pole commutating me ka uwea keleawe, me ka ʻole o ka insulation interlayer. Ua like loa ka insulation kino pole me ke kino pole nui. ʻElua mau ʻano o ka hoʻoheheʻe ʻana: ʻo ka hoʻohana ʻana i ka epoxy phenolic aniani paipu lole me ka mānoanoa o ka paia o 1.0 ~ 2.0 mm e like me ka insulation screw, ʻo ka mea ʻē aʻe e hoʻopili i ka lole aniani epoxy phenolic 0.1 mm ma ka wili no ke kaomi wela. ʻO ka poloka cushion insulating a me ka triangular cushion block he 3240 epoxy phenolic aniani papa lole. Hoʻopili ʻia: ʻekolu papa o 0.14mm mika lipine a me hoʻokahi papa o 0.1mm lipine aniani i semi overlapped no ka commutation pole e wili ana i ka pipili, a ʻo ka laula o kēlā me kēia ʻaoʻao he 50mm ka nui ma mua o ka pipili. Hoʻopaʻa paʻa kipi: ʻelua papa o 0.3mm papa mica palupalu (i loko), ʻelua papa o 0.2mm insulating cardboard (waho), ākea ʻoi aku ma mua o 12.5mm ma kēlā me kēia ʻaoʻao o ka pahu hoʻoponopono Φ L E hoʻopaʻa ʻia ke kaula uea aniani.


  1.6 Insulation o nā ʻāpana ʻē aʻe o ka mīkini DC


  1.6.1 Palaki ku'i ku'i no ka papa B 1611 pena kilikakika pepa. Pālaki hoʻomākaʻikaʻi papa H 1053 pena kinona silika.


  1.6.2 Hoʻopili mau ʻia ke kāʻei B o ka armature, ka pou nui a me ka hoʻihoʻi ʻana i ka wili hoʻopaʻapaʻa pole me ka lipine mika 5438B a hana ʻia e ke kaomi wela. ʻO ka ʻōwili mau ʻana o ka lipine kiʻiʻoniʻoni no ka papa F


  2. Stator insulation o kiʻekiʻe-voltage AC kaʻa


  2.1 Stator insulation structure of high-voltage AC motor: ma muli o nā mākau uila like ʻole, nā mea insulation a me nā mana kaʻa, he hopena nui ia i ka hilinaʻi o ka hana. Nui nā ʻano hana hoʻokaʻawale stator. ʻEkolu mau pae uila ka AC high-voltage motor: 3000 V, 6000 V a me 10000 V (10500 V). ʻEkolu mau helu insulation: A, B a me F. I kēia manawa, ua hoʻopau ʻia nā makani stator insulated Class A, a ua hoʻohana nui ʻia ka papa B a me ka papa F. Ma muli o nā ʻano hana ʻokoʻa, nā lako hana a me nā kumu o nā mea hoʻokalakupua o nā mea hana like ʻole, ʻekolu mau ʻano o ka papa B class insulation high-voltage stator insulation structures: composite insulation structures. Hoʻokumu ʻia ka ʻaoʻao laina e ka paʻi wela 5438B grade rubber mica tape, a ʻo ka ʻaoʻao hope e hoʻomau mau ʻia i ka semi overlapped me ka lipine lole aniani melemele (a i ʻole asphalt mica tape, self-adhesive silicone rubber tape, etc.). ʻO ke kumu, ʻaʻohe elasticity maikaʻi ʻo Class B ma hope o ka hoʻōla ʻana, paʻakikī ke hoʻopili ʻana i nā uea, a hiki i ka hopena ke pilikia i ka pōʻino mechanical, no laila ua hoʻohana ʻia nā mea insulation ʻē aʻe ma ka hopena. Eia nō naʻe, ʻo ka hopena o ka hoʻolālā insulation composite he maikaʻi ʻole ka ikaika uila a me ka pale ʻana i ka wai. I kēia manawa, hoʻohana ka hapa nui o nā mea hana hale i ka hoʻolālā composite. ʻO ke ʻano laina haʻahaʻa haʻahaʻa o nā hopena mika a pau. Hana ʻia ka insulation o ka ʻōwili holoʻokoʻa i ka honua me ka lipine mica rubber Class B. Hoʻopili wela ka ʻāpana pololei a ʻaʻole paʻa ka hopena. Hoʻopili ʻia me kahi ʻāpana o ka lipine resin hiki ke hoʻemi ʻia. Hoʻohana ʻia ka laina haʻahaʻa haʻahaʻa. Ma hope o ka laina lalo, hoʻoluu ʻia nā ʻaoʻao ʻelua i ka pena. Hoʻokomo ʻia ka pauka mika holoʻokoʻa i loko o ka hoʻolālā insulation pena. Hoʻopili ʻia ka ʻāpana laina a me ka hope o ka coil i ka lepo me ka tape mica. Ua ʻeha pololei ka ʻōwili me ka ʻole o ka hoʻōla ʻana, a ua hoʻopaʻa ʻia ka stator me ka pena ma hope o ka wili ʻana. I kēia manawa, ʻo nā motika AC kiʻekiʻe kiʻekiʻe i hana ʻia ma waho (ʻAmelika, Kelemānia, Iapana, etc.) no ka papa F.


  2.2 ʻO ka huli ʻana e hoʻohuli i ka insulation o ka mīkini AC kiʻekiʻe-voltage he 3 kV: maʻamau, hoʻohana ʻia ka uea aniani pālua a me ʻekolu uea aniani, hoʻohana ʻia kahi papa o ka mica tape ma waena o nā papa, a hoʻohana ʻia ka pena epoxy phenolic no ke kaomi wela. 6 kV papa: palua aniani puluniu wili, pālua aniani puluniu wili ikaika kiʻekiʻe enamelled uwea ua hoʻohana 'ia, ka hapa waho ua wahīʻia me ka papa o ka mica lipine, a pulumi me ka epoxy phenolic pena no ka wela kaomi. 10kV papa: hoʻokahi papa o ka mika tape ma mua o 6kV papa.


  2.3 He ʻokoʻa ka ʻōnaehana insulation a me ke ʻano o ka mālama insulation o ka stator i ka insulation ground ma muli o nā kaʻina hana insulation like ʻole, nā mea insulation a me nā pae uila.


  2.4 ʻO nā mea insulation a me nā ʻano lapaʻau o ka pole body insulation, huli i ka hoʻohuli ʻana i ka insulation a me ka insulation gasket o ka synchronous machine pole winding insulation ua like me ka DC motor pole insulation.


3. Kaʻa kaʻa insulation au


  Ma muli o ka holomua o nā mea a me nā ʻenehana, ua hana ʻia ka insulation o nā kaʻa AC kiʻekiʻe ma Kina i ka epoxy based impregnating varnish flat grade B rubber mica tape me ka thermoelastic insulation (ʻo ka mea i kapa ʻia ʻo thermoelastic insulation e pili ana i ka hana ʻana i ka hoʻonui ʻana i ka wela. ʻO ka hoʻolālā insulation kokoke like me ka coefficient hoʻonui wela o ke keleawe, no laila e hoʻonui ka lihi insulation a hoʻopaʻa me ke keleawe, a hiki i ka ʻōnaehana insulation ke hoʻopili mau i ka ʻili o ka uea keleawe me ka ʻole o ka neʻe ʻana, no laila ʻaʻohe wahi). Ua hoʻololi piha ia i ka papa hana insulation mua o ka asphalt glue+biotite tape, a ke ulu nei i ka impregnation integral o stator. ʻAʻole kēia e hoʻomaikaʻi wale i ka pae insulation a me ka ikaika uila o ka insulation, akā e hōʻemi ana i ka nui o ka mīkini, mālama i nā mea mica nui, a hoʻomaikaʻi hou i ka hilinaʻi insulation.


  ʻO ke ʻano o ka hoʻomohala ʻana o ka insulation motor DC e hoʻomaikaʻi i ka pae insulation a hana i ke kiʻi insulation. ʻO nā ana: ʻo ka mea mua, hoʻohana ʻia nā fibers aromatic a heterocyclic resin a me nā kiʻiʻoniʻoni (e like me ka polyamide, polyimide, polyamide imide, a me nā mea ʻē aʻe) i ka huli ʻana o ke kaʻa e hoʻohuli i ka insulation a me ka insulation nui. ʻO ka lua, hoʻohana ʻia ka varnish impregnating pale wela (e like me ka diphenyl ether a me ka pena kalapona silicone i hoʻololi ʻia). Loaʻa i kēia mau kiʻi ʻoniʻoni ʻono a me heterocyclic ka maikaʻi o ka ikaika uila kiʻekiʻe, ke kūpaʻa wela kiʻekiʻe, ka ikaika maikaʻi, ka pale ʻana i ka corrosion a me ka pale radiation,


  ʻAʻole hiki ke hoʻomaikaʻi wale ʻia ka pae insulation iā F a me H (ʻo ka mea kiʻiʻoniʻoni ponoʻī ʻo H insulation, ka mea maʻamau i hana ʻia iā F ma muli o ka hopena maʻalahi o ka impregnating varnish, ka umu wela a me nā mea kākoʻo ʻē aʻe i ka hana ʻana i nā kaʻa DC nui) , akā, ua hoʻemi nui ʻia ka mānoanoa insulation a ua hoʻemi ʻia ka leo kaʻa. No laila, hoʻomaikaʻi maikaʻi ʻia nā hōʻailona ʻenehana a me ka hana o ka kaʻa.


  Nui nā ʻoihana i hana nui i ka hoʻololi ʻana i ka insulation Class B me ke kiʻi ʻoniʻoni Class H, me nā hopena kupaianaha a me kekahi ʻike. I kēia manawa, ua hoʻomaka nā mea hana kaʻa kūloko e hoʻāʻo e hana i nā kaʻa nui me ka insulation kiʻi F grade.


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