- No ke aha i ʻoi aku ka wela o nā kaʻa i kēia manawa ma mua o ka wā ma mua?
Ma muli o ka hoʻomau mau ʻana o ka ʻenehana insulation, pono ka hoʻolālā ʻana o nā kaʻa i ka hoʻonui ʻia a me ka hoʻemi ʻana i ka leo, e hoʻoemi a liʻiliʻi ka mana wela o nā kaʻa hou, a ʻoi aku ka nāwaliwali o ka overload; a ma muli o ka hoʻomaikaʻi ʻana o ka automation production, pono nā kaʻa e holo pinepine i nā ʻano ʻano like ʻole e like me ka hoʻomaka pinepine ʻana, ka braking, ka hoʻololi ʻana i mua a me ka hoʻohuli ʻana, a me ka ukana loli, e kau ana i nā koi kiʻekiʻe ma nā mea pale kaʻa. Eia kekahi, ʻoi aku ka laulā o nā noi a me ka hana pinepine ʻana i nā wahi ʻino loa, e like me ka humid, kiʻekiʻe wela, lepo, corrosive, etc. ʻO kēia mau mea a pau ka mea i ʻoi aku ka maʻalahi o ka pōʻino o nā kaʻa o kēia manawa ma mua o ka wā ma mua.
- No ke aha i kūpono ʻole ai ka hopena pale o nā mea pale kuʻuna?
ʻO nā mea pale kaʻa maʻamau ka nui o nā fuse a me nā relay thermal. ʻO Fuses nā mea pale mua a maʻalahi loa. ʻO ka ʻoiaʻiʻo, hoʻohana nui ʻia nā fuses e pale i nā laina lako mana a hōʻemi i ka hoʻonui ʻia o ka pae hewa i ka wā o nā hewa pōkole.
He mea ʻepekema ʻole ka manaʻo e hiki i ka fuse ke pale i ke kaʻa mai ke kaapuni pōkole a i ʻole ka overload, a koho i ka fuse e like me ka helu helu ma mua o ke ʻano hoʻomaka o ka motika. Eia nō naʻe, ʻoi aku ka maikaʻi o ka hōʻino ʻana i ke kaʻa ma muli o ka pau ʻole o ka pae.
ʻO ka Thermal relay ka mea i hoʻohana nui ʻia i ka mīkini pale overloading. Eia nō naʻe, he hana hoʻokahi ka relay thermal, haʻahaʻa haʻahaʻa, hewa nui, a me ke kūpaʻa maikaʻi ʻole, i ʻike ʻia e ka hapa nui o nā limahana uila. ʻO kēia mau hemahema a pau e hilinaʻi ʻole ai ka pale kaʻa. Pela io no; ʻoiai ua lako nā mea hana me nā relay thermal, ʻo ke ʻano o ka pōʻino kaʻa e pili ana i ka hana maʻamau.
- Mea pale kaʻa kūpono?
ʻO ka mea pale kaʻa maikaʻi ʻaʻole ka mea me ka nui o nā hana, ʻaʻole hoʻi ka mea i kapa ʻia ʻoi aku ka holomua, akā ʻo ka mea pono loa. No laila he aha ka pono? Pono ka hoʻomaʻamaʻa e hoʻokō i nā mea o ka hilinaʻi, ka hoʻokele waiwai, ka ʻoluʻolu, a me nā mea ʻē aʻe, a loaʻa i kahi ratio kiʻekiʻe o ka hana-uku. No laila he aha ka mea hilinaʻi?
Pono e hoʻokō mua ka hilinaʻi i ka hilinaʻi o ka hana, e like me ka overcurrent a me nā hana hemahema e hiki ke hana pono no ka overcurrent a me ka pau ʻole o ka pae i nā manawa like ʻole, nā kaʻina hana, a me nā ʻano hana.
ʻO ka lua, ʻo ka hilinaʻi o ka mea pale ponoʻī (no ka mea ʻo ka mea pale e pale aku i nā poʻe ʻē aʻe, pono ke hilinaʻi kiʻekiʻe) pono ke hoʻololi, kūpaʻa a me ka lōʻihi i nā ʻano ʻino. Hoʻokele waiwai: hoʻohana i ka hoʻolālā kiʻekiʻe, hoʻolālā kūpono, ʻoihana a me ka hana nui, hoʻemi i nā kumukūʻai huahana, a lawe mai i nā pono waiwai kiʻekiʻe loa i nā mea hoʻohana. ʻoluʻolu: Pono ia e like me nā relay thermal e pili ana i ka hoʻonohonoho ʻana, hoʻohana, hoʻoponopono, uea, a me nā mea ʻē aʻe, a maʻalahi a maʻalahi e like me ka hiki. Ma muli o kēia, ua wānana lōʻihi ka poʻe loea e pili ana i ka maʻalahi o nā mea pale uila uila, pono e hoʻolālā ʻia kahi hoʻolālā me ka ʻole o ka mana hoʻololi (passive), a hoʻohana ʻia nā semiconductor (e like me thyristors) ma kahi o ka electromagnetic. nā mea hana me nā mea pili. Ma kēia ala, hiki ke hana i kahi mea pale i haku ʻia me ka liʻiliʻi o nā ʻāpana. Ua ʻike mākou e lawe mai ʻo Active i ka hilinaʻi ʻole. Pono kekahi i ka mana hana no ka hana maʻamau, a e nalowale kekahi i ka mana hana i ka wā e haki ai ka māhele. He kue keia i hiki ole ke lanakila iki.