He aha ka:ʻume mākenēki Hawaii kaapuni nalu
Mau kaapuni nalu hoʻopale kanu mai pōkole i puhi ai i loko o ka palena o ko lākou wawahi nona iho, a ma ka mea o kaʻume mākenēki triggers (kekahi no pae). ʻUme mākenēki lumai kaapuni mea a pau-laau, mai ka outset: hoʻokahiʻume mākenēki kāhea, e ka poʻe wehe i na auamo.
No ka haʻahaʻa pōkole-kaapuni paialewa, kaapuni nalu hana wikiwiki ma mua o fuses. Keia hoomalu complies me ka IEC 60947-2 hae. E uhai i kekahi pōkole-kaapuniʻikena pono, ma laila nō ekolu mau Kuleana:
· I ka loaʻaʻana o ka mea hewa lā he,
· Rapid kaawale ana o ka hui 'ana,
· Haki ana o ka pōkole-huakai kaapuniʻikena.
AC Hawaii - palekana i ka pōkole i puhi ai
Kela a me keia uila Hawaii i pae'ōnaehana mokuna o lākou. Overshooting mau palena, e ho'ōla luku ia, a me nā nenoai e kipaku, ka koke ia i ke hoʻohana shutdown a me ka poho. He pōkole kaapuni mea i ka hui 'ana ma waena o nā heluʻaiʻano uilaʻia o ka:
- Alternatingʻikena : pae-i-paeʻia, pae-i-'ākilikai nā leka pepa, pae-i-honua E leka pepa a me ka hui 'ma waena oʻanuʻu i loko o ka pae,
- Direct current: contact between two poles or between the ground and the pole insulated from it.
Kēia hiki i ka helu o nā kumu: poino i ka varnish hō'īpale na conductors, wehe, wāwahi ai hao kaula a uwea, metala haole kino, e mālama nei i hoʻokomo kālā (lepo, ona mau, etc.), seepage o ka wai 'ole' ē aʻe e mālama nei fluids, hewa pilina ma kaʻaha kanaka a me ka hoʻoponopono.
He pōkole kaapuni i nā hualoaʻa ma ka ulia kēia o kaʻikena a hiki a hiki i kekahi mau haneri manawa i ka hana pono i loko o milliseconds. He pōkole kaapuni hiki i kŘpuna 'ole a me ka loa poho lako a pan. Ua Ua typified ma nāʻike manaʻo.
Thermal kŰia
A thermal kŰia e like me ka ikehu kuu i loko o ka pou huakai kaapuni i kela kapa ma ka pōkole kaapuni he au no ka i manawa 'ole ma muli o ka haʻilula au 2 Halau a hōʻike me A 2 mau. Kēia thermal hopena hiki i:
· Heheʻe o ke alakaʻi mele hui 'ana,
· Mai ana ka luku ana i ka thermal hehee wale i loko o ka bimetal mika ina ōhumu meaʻano 1,
· Hanauna o ka pou arcs,
· Calcination o hō'īpale mea,
· Ahi i loko o ka lako a pan.
· Fuses , a uhai i ka puni ma ka heheʻe, a pono e auou caiaiai hope mai,
· ʻUme mākenēki kaapuni nalu i koho uhaʻi i ka huakai kaapuni a wale koi ia e'ōlelo huna.
hiki ke kūkulu i pōkole-huakai kaapuni a ka palekana i loko o multifunction i punihei e like me Hawaii like me ka 'ohana ka palekana a me ka contactor nalu.
Wehewehe hou a me nā 'ano
I ka papa kuhikuhiE ano o ka pōkole-huakai kaapuni a ka hoomalu ana i na mea maalea i:
· Lana I nona iho : i ke kiekie loa cia i loko o ka oaeuiinoe pōkole-kaapuni pono ana i ka 'ohana ka palekana mea hiki ke uhai aku i ka haawiia mai anakahi uila,
· He welo 'nona iho : i ka lani kiekie loa waiwai i hoomalu mea hiki ke hiki ma kona Loipālākiō anakahi uila i loko o hoakaka ana. Ka panina waiwai o K manawa i ka anaʻe nona iho e like me ka hoike ana i loko o ka papaʻaina ma lalo nei.
Makuakane nona iho (BC) |
φ Cos |
Panina nona iho (CC) |
4.5kA <BC <6kA |
0,7 |
1.5 BC |
6kA <BC <10kA |
0.5 |
1,7 BC |
10kA <BC <20kA |
0,3 |
2 BC |
20kA <BC <50kA |
0,25 |
2.1 BC |
50kA <BC |
0.2 |
2.2 BC |
Makuakane a me ka panina nā pihana'ū no ka huakai kaapuni nalu ma ka IEC 60947-2 maʻamau
Fuses
Fuses hana pae-ma-pae (hookahi laau) palekana me ke kiʻekiʻe wanaao ae nona iho i haahaa ka leo. Ka mea, kali I2t a electrodynamic stress (Icrête).
Ka mea, i lele aku:
· Ma kūikawā kūkulu pū kapa fuseholders,
· A ma isolators ma ka wahi o nā kumu a me nā loulou.
E noke i ka huakaʻi anakahi kaula hō'ā nā papahu hiki ke hoʻoili kālā i ka mea a pau-laau ka hoʻololiʻana lima kūlana kiʻekiʻe (i hookuu i ka Hawaii hooponopono contactor) e pale aku singlephase hana ia e hehee.
Nā fuses hoʻohana no ka Hawaii hoomalu, ua ho'ākāka 'ia i loko o ia mea, e ma na overcurrents aie i ka magnetising pono ia Hawaii i ua hō'ā ia. Ka mea, i ole e pono no ka palekana i ka overload (like GG fuses) no laila, he overload mika pono e hou i ka Hawaii mana lako huakai kaapuni. I mau, i ko lakou nui e e pono ma luna o ka piha haawe pono o ka Hawaii.
Post time: Aug-13-2018