ʻO ka ʻokoʻa ma waena o MCB a me RCCB

ʻO ka mea haʻihaʻi kaapuni: hiki ke hoʻololi, lawe a uhaʻi i ke ʻano ma lalo o nā kūlana kaapuni maʻamau, hiki ke hoʻololi ʻia ma lalo o nā kūlana kaapuni maʻamau ʻole, lawe i kekahi manawa a wāwahi i ke ʻano o kahi hoʻololi mechanical.

ʻO ka Micro Circuit Breaker, i kapa ʻia ʻo MCB (Micro Circuit Breaker), ʻo ia ka mea i hoʻohana nui ʻia i ka pale ʻana i nā mea uila i ke kūkulu ʻana i nā mea hoʻohele uila.Hoʻohana ʻia ia no ka ʻāpana pōkole hoʻokahi a me ʻekolu ʻāpana pōkole, overload a me ka pale overvoltage ma lalo o 125A, me nā ʻano ʻehā o ka pahu hoʻokahi 1P, ʻelua-mole 2P, ʻekolu-pole 3P a me ʻehā-pole 4P.

Aia ka micro circuit breaker me kahi mīkini hana, kahi hoʻopili, kahi mea pale (nā mea hoʻokuʻu like ʻole), kahi ʻōnaehana hoʻopau arc, a me nā mea ʻē aʻe.Ma hope o ka pani ʻia ʻana o ka pilina nui, hoʻopaʻa ka mīkini huakaʻi manuahi i ka pilina nui ma ke kūlana pani.Hoʻopili ʻia ka coil o ka hoʻokuʻu overcurrent a me ka mea wela o ka hoʻokuʻu wela i ke kaapuni nui i ka moʻo, a ua hoʻopili ʻia ka coil o ka hoʻokuʻu undervoltage i ka lako mana i ka like.Ke holo kaapuni kaapuni a i ole ke kaumaha nui, huki ka lima o ke kaapuni kaapuni nui, e hana ana ke kaapuni kaa ole, a oki ke kaapuni nui i ke kaapuni nui.Ke hoʻonui ʻia ke kaapuni, wela ka mea wela o ka mīkini huakaʻi wela e pelu ai i ka pepa bimetal a hoʻokuke i ka mīkini huakaʻi manuahi e hana.Ke hoʻokuʻu ʻia ke kaʻapuni ma lalo o ka volta, hoʻokuʻu ʻia ka armature o ka mea hoʻokuʻu undervoltage.E ʻae pū i ka mīkini huakaʻi manuahi e hana.

Ke koena kaapuni kaapuni o keia manawa: He kuapo e hana 'akomi ana ke oi aku ke koena au i ke kaapuni i ka waiwai i koho mua ia.Hoʻohana ʻia ka leakage circuit breakers i ʻelua ʻāpana: ʻano uila a me ke ʻano o kēia manawa, a ua māhele ʻia ke ʻano o kēia manawa i ke ʻano electromagnetic a me ke ʻano uila.Hoʻohana ʻia nā leakage circuit breakers no ka pale ʻana i ka haʻalulu pilikino, a pono e koho ʻia e like me nā koi like ʻole o ka hoʻopili pololei a me ka pale pili ʻole.

E koho e like me ke kumu o ka hoʻohana ʻana a me kahi o ka mea uila

1) Ka pale ʻana mai ka hoʻopili pololei ʻana me ka haʻalulu uila

Ma muli o ka nui o ka pōʻino o ka hoʻopili pololei ʻana i ka uila, he koʻikoʻi nā hopena, no laila e koho i kahi leakage circuit breaker me ka naʻau kiʻekiʻe, no nā mea hana mana, nā lako uila kelepona a me nā laina manawa pōkole, pono e hoʻokomo ʻia i ka loop operating current o 30mA, manawa hana i loko o 0.1s leakage circuit breaker.No nā hale noho me nā mea hana hale ʻoi aku ka maikaʻi, ʻoi aku ka maikaʻi o ke kau ʻana ma hope o ke komo ʻana i ka mika ikehu hale.

Inā maʻalahi ka haʻalulu uila i ka pōʻino lua (e like me ka hana ʻana ma ke kiʻekiʻe), pono e hoʻokomo ʻia kahi mea hoʻoheheʻe kaapuni leakage me ka mana hana o 15mA a me kahi manawa hana i loko o US e hoʻokomo i ka loop.No nā lāʻau lapaʻau uila i loko o nā halemai, pono e hoʻokomo ʻia nā mea hoʻokele kaapuni leakage me ka 6mA hana a me ka manawa hana ma US.

2) Palena pili pili ʻole

Hiki ke ho'opō'ino 'ia ke kanaka, no laila, pono e ho'okomo 'ia nā wahi kaapuni leakage ma nā wahi like 'ole.Pono ʻia e hoʻohana i nā mea hoʻoheheʻe kaapuni leakage me ka ʻike kiʻekiʻe no nā wahi i ʻoi aku ka ʻino o ka uila.Ma nā wahi pulu ma mua o nā wahi maloʻo, ʻoi aku ka nui o ka pilikia o ka haʻalulu uila, pono e hoʻokomo ʻia i kēia manawa o 15-30mA, ka manawa hana i loko o 0.1s leakage circuit breaker.No nā mea uila i loko o ka wai, pono e hoʻokomo i ka hana.Leakage circuit breaker me ka manawa o 6-l0mA a me ka manawa hana i loko o US.No nā lako uila kahi e kū ai ka mea hoʻohana ma luna o kahi mea metala a i ʻole i loko o kahi pahu metala, ʻoiai ke kiʻekiʻe o ka volta ma mua o 24V, pono e hoʻokomo ʻia kahi leakage circuit breaker me kahi manawa hana ma lalo o 15mA a me kahi manawa hana ma US.No nā lako uila paʻa me ka volta o 220V a i ʻole 380V, i ka wā i kū ai ke kūpaʻa ʻāina o ka hale ma lalo o 500fZ, hiki i kahi mīkini hoʻokahi ke hoʻokomo i kahi leakage circuit breaker me kahi manawa hana o 30mA a me kahi manawa hana o 0.19.No nā lako uila nui me ka helu o kēia manawa ʻoi aku ma mua o 100A a i ʻole kahi kaapuni hoʻolako mana me nā lako uila he nui, hiki ke hoʻokomo ʻia kahi leakage circuit breaker me ka mana hana o 50-100mA.I ka wā o ka pale ʻana o nā mea uila ma lalo o 1000, hiki ke hoʻokomo ʻia kahi leakage circuit breaker me kahi hana o 200-500mA.

https://www.nbse-electric.com/bm60-high-quality-automatic-circuit-breaker-mini-circuit-breaker-product/
https://www.nbse-electric.com/bm60-high-quality-automatic-circuit-breaker-mini-circuit-breaker-product/

Ka manawa hoʻouna: Sep-19-2023