He aha ka VAC i ka ʻenehana uila?
Nā mea
Makemake ʻoe e ʻike i ke ʻano o ka abbreviation VAC i nā huaʻōlelo uila? He mea uila au i hōʻoia ʻia a e uhi au i kēia me ka kikoʻī ma ka ʻatikala pōkole ma lalo.
E ʻike paha ʻoe i ka 110VAC a i ʻole 120VAC i hōʻailona ʻia ma ka hapa nui o nā mea uila.
ʻO ka maʻamau, ʻo VAC kahi huaʻōlelo i hoʻohana ʻia i ka ʻenekini uila no AC volts. Ua kamaʻāina paha ʻoe i nā volts DC; he uila DC ia. Pēlā nō, hōʻike ka VAC i ka volta AC. ʻO ka mea wale nō e pono ai ʻoe e ʻike ʻo ia ka VDC a me ka VAC e hōʻike ana i nā voltages.
E hoʻomau i ka heluhelu no ka wehewehe kikoʻī.
ʻO nā mea āpau e pono ai ʻoe e ʻike e pili ana i ka VAC
Nui nā mokuʻāina ma ʻAmelika ʻĀkau e hoʻohana i ka 110 a i ʻole 120 VAC. A ʻike paha ʻoe i kēia mau hōʻailona ma kekahi mau mea uila e like me nā kamepiula, nā mea hoʻololi o kēia manawa, a me nā multimeter digital. Akā, ʻike anei ʻoe i kona ʻano?
ʻO VAC ka huaʻōlelo i hoʻohana ʻia e kuhikuhi i nā volts AC. No laila ʻaʻohe mea e like me ka mana AC. ʻO ia wale nō ka mana kaapuni AC.
Eia naʻe, no ka hoʻokō pono ʻana, pono ʻoe e hoʻomaopopo i ka ʻokoʻa ma waena o VAC a me VDC.
He aha ka VDC a me ka VAC?
ʻO ka mea mua, pono ʻoe e ʻike e pili ana i ka DC a me AC i mea e hoʻomaopopo ai i kēia mau huaʻōlelo ʻelua.
ʻĀnō pololei (DC)
Ke kahe nei ka mana DC mai ka hopena maikaʻi ʻole. He unidirectional kēia kahe, a ʻo kahi pākahiko kaʻa kekahi hiʻohiʻona kaulana.
ʻĀpana ʻokoʻa (AC)
ʻAʻole like me DC, kahe ka mana AC mai nā ʻaoʻao ʻelua. No ka laʻana, i kēlā me kēia kekona, hoʻololi ka mana AC mai ka maikaʻi a i ka maikaʻi a mai ka maikaʻi i ka maikaʻi ʻole. ʻO ka lako mana nui e hiki mai ana i kou home ka laʻana maikaʻi loa o ka mana AC.
V DC a me AC
Inā maopopo iā ʻoe ka mana AC a me DC, ʻaʻohe āu mea e maopopo ai e pili ana i ka VDC a me ka VAC.
Eia kahi wehewehe maʻalahi.
Hōʻike ʻo VDC i ka waiwai voli DC a ʻo VAC e hōʻike ana i ka waiwai uila AC. Inā lawe ʻoe i kahi multimeter kikohoʻe a nānā pono iā ia, hiki iā ʻoe ke ʻike i kēia mau hōʻailona ʻelua. Eia nō naʻe, inā makemake ʻoe e hoʻohana i kēia mau hoʻonohonoho ma kahi multimeter, pono ʻoe e ʻike i nā kaapuni e hana me ka uila DC a me nā kaʻa me ka volta AC.
Ma hea e loaʻa ai iaʻu ka VAC?
Hoʻohana ka hapa nui o ʻAmelika ʻĀkau i ka 110 a i ʻole 120 VAC no nā hale maʻamau. Hiki iā ʻoe ke ʻike i kēia hōʻailona ma nā mea AC. Eia naʻe, i ka hiki ʻana i ʻEulopa e hoʻohana lākou i 220VAC a i ʻole 240VAC.
ʻ Tiplelo Aʻoaʻo wikiwiki: ʻOkoʻa ka volta hoʻolako 120 V AC mai 170 V a i ʻole. A laila piʻi hou i 170V. No ka laʻana, e hana hou ʻia ka ʻauamo ʻokoʻa i 60 mau manawa i hoʻokahi kekona. ʻO kēia ke kumu he 60Hz ka hapa nui o nā kumu AC.
Volta RMS 120 V AC
I ka ʻoiaʻiʻo, 120V AC e hoʻololi i 170V a hāʻule i ka ʻole. Ua like kēia hawewe sine i ka 120 volts DC a ua kapa ʻia ʻo RMS.
Pehea e helu ai i ka waiwai RMS?
Eia ke kumu no ka helu ʻana iā RMS.
VRMS V=piko*1/√2
170V kaha kiʻekiʻe.
No laila,
VRMS = 170*1/√2
VRMS = 120.21 V
No ke aha mākou e hoʻohana ai i ka VAC?
E lilo ana kekahi ikehu i kēlā me kēia manawa e ho'āʻo ai ʻoe e hoʻololi i ka ikehu mai kekahi ʻano i kekahi. No laila, no ka hoʻemi ʻana i kēia nalowale o ka ikehu, hoʻopuka nā mea hana i ka uila ma ka uila kiʻekiʻe a hoʻouna iā ia ma ke ʻano o ke au.
Eia naʻe, ʻaʻole pono nā ʻohana maʻamau i ka uila uila kiʻekiʻe. Ma muli o kēia, hele ka uila AC i kahi transformer step-down a hoʻopuka i kahi uila haʻahaʻa no ka hoʻohana ʻana i ka home.
mea nui: ʻAʻole holo ka hapa nui o nā mea uila ma ka mana AC. Akā, hoʻohana lākou i ka mana DC haʻahaʻa haʻahaʻa. No laila, hoʻololi ʻia ka mana AC haʻahaʻa haʻahaʻa i ka mana haʻahaʻa haʻahaʻa DC e kahi rectifier alahaka.
E nānā i kekahi o kā mākou ʻatikala ma lalo nei.
- Hoʻonohonoho i kahi multimeter no kahi pahu kaʻa
- mīkini hana ho'āʻo hāʻule hāʻule
- Pehea e ho'āʻo ai i ka pahu kaʻa me ka multimeter
Nā loulou wikiō
