He aha nā mea hoʻokaʻawale?

2023-12-26

  01. Ka wehewehe ʻana i nā mea insulation

  

  ʻO nā mea i hana ʻia me ka nui o ka resistivity o 109~ 1022Kapa ʻia ʻo Ω·cm i nā mea insulating i ka ʻenehana uila, ʻike ʻia hoʻi he dielectrics.

 

  He kiʻekiʻe loa ke kūʻē ʻana o nā mea insulating i ka manawa DC. Ma muli o ko lākou kūpaʻa kiʻekiʻe, ma lalo o ka hana o ka uila DC, koe wale nō ka liʻiliʻi liʻiliʻi liʻiliʻi o ka leakage o kēia manawa, ʻaʻole maoli lākou. ʻoiai no ka manawa AC, aia kahi manawa capacitive. Pass, i manaʻo nui ʻia he non-conductive. ʻOi aku ka nui o ka resistivity o ka mea insulating, ʻoi aku ka maikaʻi o kāna mau mea insulating.

 

Nā Hana Hana Waiwai

 

02. Ka hoʻokaʻawale ʻana o nā mea insulation:

 

  (1) Nā mea hoʻokuʻu kinoea

  ʻO ka maʻamau, loaʻa i nā kinoea maloʻo ma lalo o ka mahana maʻamau a me ke kaomi ʻana i nā waiwai insulation maikaʻi, e like me ka ea, nitrogen, sulfur hexafluoride, etc.

 

  (2) Mea hoʻoheheʻe wai

  Liquid insulating mea maʻamau i loko o ke ano o ka aila, no hoi i ike i ka insulating aila, e like me ka aila transformer, kuapo aila, capacitor aila, etc.

 

  (3) Nā mea hoʻokaʻawale paʻa

  ʻO nā mea paʻa paʻa maʻamau ka nui o ka pepa insulating, insulating cardboard, lāʻau, uila laminated wood, phenolic cardboard, phenolic cloth board, glass cloth board, etc.

Nā Hana Hana Waiwai

03. Nā waiwai kumu o nā mea insulating:

 

  (1) Hana uila

  ʻO nā waiwai uila o nā mea insulating nā mea koʻikoʻi loa o nā transformers a he mea koʻikoʻi i ka hoʻoholo ʻana i ke koho ʻana i nā mea insulating. Loaʻa ka hana uila i nā ʻano penei:

 

①Ka pale ʻana i ka insulation

 

  ʻO ka volta DC i hoʻohana ʻia ma waena o nā electrodes ʻelua o kahi insulator i puʻunaue ʻia e ka hele ʻana o kēia manawa ma waena o nā electrodes ʻelua, ʻo ia ke kūpaʻa insulation.

 

  Hoʻokaʻawale ʻia ke kūpaʻa insulation i ke kūpaʻa insulation ili a me ke kūpaʻa insulation volume. ʻO ke kūpaʻa ʻana o ka insulation o ka ʻili ke hōʻike i ka hiki ke pale aku i ka hele ʻana o kēia manawa ma ka ʻili o kahi dielectric; ʻO ke kūpaʻa insulation volume e hōʻike ana i ka hiki ke pale aku i ka hele ʻana o ke au i loko o kahi dielectric.

 

②Ka ikaika uila

 

  Ke ʻoi aku ka ikaika o ke kahua uila ma mua o ka waiwai i ʻae ʻia (waiwai koʻikoʻi) i hiki i ke ʻano ke kūpaʻa, e nalowale ke ʻano insulating. Ua kapa ʻia kēia ʻano he haʻihaʻi uila o ka waena. Ua kapa ʻia ka volta i ka wā e haki ai ka dielectric, a ʻo ka ikaika o ke kahua uila i kapa ʻia ʻo ka ikaika uila o ka mea waena.

 

  ʻO ka ikaika uila o nā mea insulating e pili ana i nā kūlana hana mua o ka mea ponoʻī, ka mahana, ka haʻahaʻa a me nā mea pili ʻē aʻe. ʻO nā waiwai uila o nā mea insulating i hoʻohana ʻia i nā transformers pili pū kekahi i ke ʻano a me nā kūlana hoʻohana o ka transformer ponoʻī.

 

  Ma hope o ka haki ʻana o ka uila i loko o kahi mea insulating paʻa, ʻaʻole hiki ke hoʻihoʻi iā ia iho a pono e hoʻololi ʻia. Eia nō naʻe, ma hope o ka haki ʻana o ka uila i loko o ka wai a i ʻole ke kinoea insulating mea, hiki iā ia ke hoʻihoʻi i kāna hana insulation kumu ma hope o kekahi manawa, ʻo ia ka haʻihaʻi elastic. .

 

③Dielectric poho

 

  I loko o kahi māla uila, ʻo ka mana i hoʻopaʻa ʻia e ka mea insulating a hoʻopau ʻia i ke ʻano o ka wela i kapa ʻia ʻo dielectric loss. Hōʻike ʻia ka poho dielectric e ka tangent o ke koki poho dielectric (tanδ). ʻO ia hoʻi, ʻoi aku ka nui o ka tanδ, ʻoi aku ka nui o ka poho dielectric, ʻoi aku ka kiʻekiʻe o ka mahana dielectric, a ʻoi aku ka wikiwiki o nā makahiki mea.

 

④Dielectric mau

 

  ʻO ka dielectric mau ka nui kino e hōʻike ana i ka degere o ka polarization o kahi dielectric ma lalo o kahi kahua uila. No ka mea hoʻoheheʻe laina isotropic, ʻo kona mau dielectric:


Nā Hana Hana Waiwai


  I loko o ke kumu hoʻohālike, ε ʻo ia ka dielectric mau o ka dielectric; ε0 ʻo ia ka pahu dielectric mau; εr ʻo ia ka mea mau dielectric pili o ka dielectric.

 

  ʻO ka maʻamau, hoʻohana ʻia ka hoʻomau dielectric pili e ana i ka degere polarization o ka dielectric. ʻO ka nui εr ʻo ia, ʻoi aku ka nui o ka polarization degere o ka dielectric ma lalo o ka hana o ke kahua uila.

 

(2) Kūleʻa wela

  Ma hope o ka hoʻohana ʻia ʻana o ka mea hoʻololi, ʻo ke ʻano insulating i loko o ia mea i kahi ʻano wela kiʻekiʻe. I ka manawa like, ma lalo o ka hana o ke kahua uila, ʻo ka mea insulating ponoʻī nō hoʻi e hoʻopuka i ka wela. Inā ʻaʻole hiki ke kaulike ka wela a me ka hoʻoheheʻe ʻana o ka mea insulating, e piʻi mau ana ka mahana, a e nalowale koke ka mea insulating i kāna mau mea insulating a hoʻohaʻahaʻa. Ua kapa ʻia kēia luku ʻana i ke ʻano insulating he thermal breakdown.

 

  ʻO nā hōʻailona e hōʻike ana i ka hana pale wela o nā mea insulation e pili ana i ka pale wela, ke kūpaʻa, ka wela o ka hana ʻae ʻia, a me ka pae wela. ʻO kā lākou mau wehewehe kumu penei:

 

①Paʻa wela

 

  Hōʻike i ka hiki o nā mea insulating e mālama i ko lākou mau waiwai dielectric, nā waiwai mechanical, nā waiwai kino a me nā mea kemika a me nā ʻano ʻē aʻe ma lalo o nā wela kiʻekiʻe.

 

②Paʻa wela

 

  E pili ana i ka hiki o ka mea insulating e mālama i kona kūlana maʻamau me ka ʻole o ka hoʻololi ʻana i kāna mau waiwai dielectric, nā waiwai mechanical, nā waiwai kino a me nā mea kemika a me nā ʻano ʻē aʻe ke hoʻololi pinepine ka mahana.

 

③Ka wela hana i ʻae ʻia

 

  E pili ana i ka mahana i hiki ai i ka mea insulating ke mālama i nā waiwai dielectric pono, nā waiwai mechanical, a me nā waiwai kino a me nā kemika no ka manawa lōʻihi (15 a 20 mau makahiki) me ka ʻole o ka pōʻino nui.

 

④Ka pae pale wela

 

  Hōʻike i ka wela hana ʻae ʻia o ka mea insulating. ʻO nā māka pale wela o nā mea insulation he 90 ℃, 105 ℃, 120 ℃, 130 ℃, 155 ℃, 180 ℃, 200 ℃, 220 ℃, etc.


Nā Hana Hana Waiwai

 

  (3) Nā waiwai mīkini

  ʻO nā ʻāpana insulating i hoʻohana ʻia ma nā transformers, i ka hoʻohui ʻana i kā lākou hana insulation, pono e kū i nā ʻano like ʻole e like me ke kaomi a me ka ʻāʻī i ka wā o ka hana. Pono kēia i nā mea insulating e loaʻa nā waiwai mechanical maikaʻi i ka mahana hana ʻae ʻia.

ʻO nā hōʻailona e hōʻike ana i nā waiwai mechanical o nā mea insulating me ka ikaika a me ka paʻakikī, a ʻo kā lākou wehewehe ʻana penei:

 

①Oolea

 

  Hōʻike i ka hiki i ka ʻili o kahi mea ke pale i ka deformation ma hope o ke kau ʻana i ke kaomi.

 

②Ka ikaika

 

  Hōʻike i ka hiki o ka mea ke mālama i kona ʻano me ka ʻole o ka deformation ma hope o ka hoʻokau ʻia ʻana i ka ikaika (ka ikaika tensile, ka ikaika compressive, ka ikaika kulou, ka ikaika hopena, ka ikaika vibration).

 

  (4) mau waiwai kino a me kemika:

 

 

  Ua hoʻokomo ʻia nā ʻāpana insulating i ka ʻaila transformer no ka manawa lōʻihi. ʻAʻole pono ka ʻaila transformer e hōʻino a hoʻoheheʻe paha i nā mea insulating, a ʻaʻole pono nā mea insulating i ka hopena maikaʻi ʻole i ka hana o ka ʻaila transformer. No nā mea insulation waho, pono e hiki ke pale aku i ka ʻino o nā kukuna ultraviolet, ua a me nā mea ʻē aʻe i ka wā lōʻihi.

 

  No nā mea insulation kinoea, ʻo nā hōʻailona hana kino a me ke kemika nui e pili ana i ka helu heheʻe, sublimation point, acidity, etc.

 

  No nā mea hoʻoheheʻe wai, ʻo nā mea hōʻailona hana kino a me nā kemika e pili ana i ka flash point, freezing point, viscosity, acid value, interfacial tension, solid content, etc.

 

  No nā mea insulation paʻa, ʻo nā mea hōʻailona hana kino a me ke kemika e pili ana i ka ʻona lehu, ka waiwai waika, ka hygroscopicity, ka launa pū me ka ʻaila transformer, etc.

 

   Hoʻopuka a kūʻai aku ʻo Hebei Jinghong Electronic Technology Co., Ltd. i nā papa hoʻoheheʻe halogen-ʻole kiʻekiʻe, nā paipu insulation, a me nā resins epoxy. ʻO kāna mau huahana nui: Pepa Resin Epoxy,Phenolic Resin Pepa, Paipu Insulation,etc.

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