ʻO kahi mea haʻihaʻi kaapuni kahi i hoʻohana ʻia ai ʻo SF6 ma lalo o ke kaomi kinoea e kinai i ke arc i kapa ʻia ʻo SF6 circuit breaker. ʻO ke kinoea SF6 (sulphur hexafluoride) he dielectric maikaʻi loa, hoʻopau arc, kemika a me nā waiwai kino ʻē aʻe i hōʻoia i kona ʻoi aku ma mua o nā mea hoʻoheheʻe arc e like me ka aila a i ʻole ka ea. Hoʻokaʻawale ʻia ka SF6 circuit breaker i ʻekolu ʻano:
- ʻAʻole puffer piston kaapuni kaapuni
- Hoʻokahi-puffer piston kaapuni kaapuni.
- ʻO ka mea hoʻopau piston puʻu pālua.
ʻO ka mea haʻihaʻi kaapuni nāna i hoʻohana i ka ea a me ka ʻaila ma ke ʻano he insulating, ʻoi aku ka lohi o kā lākou arc extinguishing force ma hope o ka neʻe ʻana o ka hoʻokaʻawale ʻana. I ka hihia o nā mea ha'iha'i kaapuni ki'eki'e, ho'ohana 'ia nā waiwai ho'opau arc e koi ana i ka manawa li'ili'i no ka ho'iho'i koke 'ana, pi'i ka uila. Loaʻa nā waiwai maikaʻi o nā mea haʻihaʻi kaapuni SF6 e pili ana i ka aila a i ʻole nā mea hoʻokele kaapuni ea. No laila, i ka volta kiʻekiʻe a hiki i 760 kV, hoʻohana ʻia nā mea hoʻokaʻawale kaapuni SF6.
Na waiwai o Sulfur hexafluoride kaapuni kaapuni
Loaʻa i ka Sulfur hexafluoride maikaʻi loa ka insulating a me ka arc quenching properties. ʻO kēia mau waiwai
- ʻAʻole waihoʻoluʻu, ʻaʻala ʻole, ʻaʻohe mea ʻawaʻawa, a ʻaʻole hiki ke wela.
- ʻO ke kinoea SF6 he paʻa loa a paʻa ʻole, a ʻelima ka nui o ka nui o ka ea.
- He kiʻekiʻe thermal conductivity ʻoi aku ka maikaʻi ma mua o ka ea a kōkua i ka hoʻomaha maikaʻi ʻana i nā ʻāpana lawe o kēia manawa.
- ʻO ke kinoea SF6 he electronegative ikaika, ʻo ia hoʻi, ua maʻalahi ka wehe ʻana o nā electrons manuahi mai ka hoʻokuʻu ʻana ma o ka hoʻokumu ʻana i nā ion maikaʻi ʻole.
- Loaʻa iā ia kahi waiwai kūʻokoʻa o ka hoʻohui hou ʻana ma hope o ka wehe ʻia ʻana o ke kumu kumu. ʻOi aku ka maikaʻi o 100 mau manawa ma mua o ka hoʻohālikelike ʻana i ka arc quenching medium.
- ʻO kona ikaika dielectric he 2.5 mau manawa ma mua o ka ea a he 30% ka liʻiliʻi ma mua o ka ʻaila dielectric. Ma ke kaomi kiʻekiʻe, piʻi ka ikaika dielectric o ke kinoea.
- He mea ino loa ka wai i ka mea ha'i kaapuni SF6. Ma muli o ka hui pū ʻana o ka haʻahaʻa a me ke kinoea SF6, ua hoʻokumu ʻia ka hydrogen fluoride (ke hoʻopau ʻia ke arc) hiki ke hoʻouka i nā ʻāpana o nā mea haʻihaʻi kaapuni.
Ke kūkulu ʻia ʻana o SF6 Circuit Breakers
ʻElua mau ʻāpana nā mea hoʻokaʻawale kaapuni SF6, ʻo ia hoʻi (a) ka ʻāpana interrupter a (b) ka ʻōnaehana kinoea.
Pūnaehana Interrupter - Aia kēia ʻāpana i nā hoʻopili hoʻoneʻe a paʻa i loko o kahi pūʻulu o nā ʻāpana e lawe nei i kēia manawa a me kahi ʻimi arcing. Hoʻopili ʻia i ka waihona kinoea SF6. Aia i loko o kēia ʻāpana nā puka makani paheʻe i loko o nā mea hoʻopili hoʻoneʻe e ʻae i ke kinoea piʻi kiʻekiʻe i loko o ka pahu nui.
Pūnaehana kinoea - Hoʻohana ʻia ka ʻōnaehana kinoea i pani ʻia i nā mea hoʻomaha kaapuni SF6. He kumu kūʻai ke kinoea SF6, no laila e kiʻi hou ʻia ma hope o kēlā me kēia hana. Aia kēia ʻāpana i nā keʻena haʻahaʻa haʻahaʻa a me ke kiʻekiʻe me kahi puʻupuʻu haʻahaʻa haʻahaʻa me nā hoʻololi hoʻolaha. Ke haʻahaʻa loa ke kaomi o ke kinoea ma muli o ka emi ʻana o ka ikaika dielectric o nā kinoea a hiki ke hoʻopau ʻia ka hiki ke hoʻopau ʻana o nā mea haki, a laila hāʻawi kēia ʻōnaehana i ka ʻōlelo hoʻolaha.
Ku'ina Hana o SF6 Circuit Breaker
Ma nā kūlana hana maʻamau, ua paniʻia nā pilina o ka mea haʻihaʻi. Ke loaʻa ka hewa i loko o ka ʻōnaehana, huki ʻia nā mea hoʻopili, a paʻi ʻia kahi arc ma waena o lākou. Hoʻopili ʻia ka neʻe ʻana o nā mea hoʻopili neʻe me ka valve e komo i ke kinoea SF6 kiʻekiʻe i loko o ke keʻena interrupting arc ma kahi kaomi o 16kg/cm^2.
Hoʻopili ke kinoea SF6 i nā electrons manuahi ma ke ala arc a hana i nā ion i hana ʻole ma ke ʻano he mea lawe uku. Hoʻonui kēia mau ion i ka ikaika dielectric o ke kinoea a no laila ua pio ke arc. ʻO kēia kaʻina hana e hoʻemi i ke kaomi o ke kinoea SF6 a hiki i 3kg / cm ^ 2 penei; mālama ʻia i loko o ka waihona haʻahaʻa. Hoʻihoʻi ʻia kēia kinoea haʻahaʻa haʻahaʻa i ka waihona kiʻekiʻe no ka hoʻohana hou ʻana.
I kēia manawa, hoʻohana ʻia ka puffer piston pressure no ka hoʻoulu ʻana i ke kaomi ʻana i ke arc i ka wā o ka wehe ʻana ma ke ʻano o kahi piston i hoʻopili ʻia i nā pilina neʻe.
Pōmaikaʻi o SF6 kaapuni kaapuni
Loaʻa i nā mea haʻihaʻi kaapuni SF6 nā mea maikaʻi ma mua o ka mea haʻihaʻi maʻamau
- ʻO ke kinoea SF6 he insulating maikaʻi loa, hoʻopau arc a me nā waiwai ʻē aʻe he ʻoi aku ka maikaʻi o nā mea hoʻokele kaapuni SF6.
- ʻAʻole hiki ke wela ke kinoea a paʻa kemika. ʻAʻole pahū kā lākou huahana decomposition a no laila ʻaʻohe pilikia o ke ahi a pahū.
- Ua emi loa ka hoʻomaʻemaʻe uila ma muli o ka ikaika dielectric kiʻekiʻe o SF6.
- ʻAʻole pili kāna hana ma muli o nā ʻano like ʻole o ke kūlana lewa.
- Hāʻawi ia i ka hana walaʻau ʻole, a ʻaʻohe pilikia o ka volta no ka mea ua pio ke arc ma ke ʻano o kēia manawa.
- ʻAʻole hoʻemi ʻia ka ikaika dielectric no ka mea ʻaʻole i hana ʻia nā ʻāpana kalapona i ka wā o ka arcing.
- Pono ka mālama pono ʻana a ʻaʻole pono ka ʻōnaehana air compressed ea.
- Hana ʻo SF6 i nā hana like ʻole e like me ka hoʻomaʻemaʻe ʻana i nā hemahema laina pōkole, ka hoʻololi ʻana, ka wehe ʻana i nā laina hoʻouna i hoʻoiho ʻole ʻia, a me ka reactor transformer, a pēlā aku me ka pilikia ʻole.
ʻO nā hemahema o nā mea hoʻopau kaapuni SF6
- ʻO ke kinoea SF6 ke ʻeha nei i kekahi ʻano. I ka hihia o ka leakage i loko o ka pahu haʻihaʻi, ʻoi aku ke kaumaha o ke kinoea SF6 ma mua o ka ea a no laila ua hoʻonoho ʻia ʻo SF6 ma nā wahi a puni a alakaʻi i ka ʻeha o nā limahana hana.
- ʻO ke komo ʻana o ka wai i loko o ka pahu haʻihaʻi SF6 he mea ʻino loa ia i ka mea haʻihaʻi, a ke kumu ia i kekahi mau hemahema.
- Pono nā ʻāpana o loko e hoʻomaʻemaʻe i ka wā o ka mālama ʻana ma lalo o kahi maʻemaʻe a maloʻo.
- Pono ka hale kūikawā no ka lawe ʻana a me ka mālama ʻana i ka maikaʻi o ke kinoea.
(Haʻi mākou i kēia ʻatikala mai kēia pūnaewele: https://circuitglobe.com/sf6-sulphur-hexaflouride-circuit-breaker.html)
Ka manawa hoʻouna: Oct-25-2023