Iyini i-VAC kubunjiniyela bakagesi?
Okuqukethwe
Uyafuna ukwazi ukuthi isifinyezo se-VAC simelani ngamatemu kagesi? Ngingumuntu osebenza ngogesi oqinisekisiwe futhi ngizofaka lokhu ngokuningiliziwe esihlokweni esifushane esingezansi.
Ungase ubone i-110VAC noma i-120VAC enelebula kumadivayisi amaningi kagesi.
Ngokuvamile, i-VAC iyigama nje elisetshenziswa kubunjiniyela bakagesi kuma-volts e-AC. Cishe ujwayelene nama-volts e-DC; iyi-voltage DC. Ngokufanayo, i-VAC imelela i-AC voltage. Okuwukuphela kwento okudingeka uyazi ukuthi zombili i-VDC ne-VAC zimelela ama-voltage.
Qhubeka ufunda ukuze uthole incazelo enemininingwane eyengeziwe.
Konke odinga ukukwazi nge-VAC
Izifundazwe eziningi eNyakatho Melika zisebenzisa i-VAC eyi-110 noma eyi-120. Futhi ungase ubone lezi zimpawu kwezinye izinto zikagesi ezifana namakhompyutha, ama-transformer amanje, nama-multimeters edijithali. Kodwa ingabe uyayazi incazelo yalo?
I-VAC igama elisetshenziselwa ukubhekisela kumavolthi e-AC. Ngakho-ke ayikho into efana namandla e-AC. I-voltage yesekethe ye-AC kuphela.
Nokho, ukuze uyilungise, kufanele uqonde umehluko phakathi kwe-VAC ne-VDC.
Iyini i-VDC ne-VAC?
Okokuqala, kufanele wazi nge-DC ne-AC ukuze uqonde la magama womabili.
I-Direct current (DC)
Amandla e-DC ageleza ukusuka kwenegethivu kuya ekugcineni okuhle. Lokhu kugeleza akuqondile, futhi ibhethri yemoto iyisibonelo esisodwa esiphawulekayo.
I-alternating current (AC)
Ngokungafani ne-DC, amandla e-AC ageleza esuka nhlangothi zombili. Isibonelo, kunoma yimuphi umzuzwana othile, amandla e-AC ashintsha ukusuka kwenegethivu ukuya kokuphozithivu futhi ukusuka kokuhle ukuya kokubi. Ukunikezwa kwamandla okuyinhloko okuza ekhaya lakho kuyisibonelo esihle kakhulu samandla e-AC.
V DC kanye ne-AC
Uma uwaqonda kahle amandla e-AC ne-DC, akukho okumele ukuqonde mayelana ne-VDC ne-VAC.
Nansi incazelo elula.
I-VDC imele inani le-voltage ye-DC kanti i-VAC imele inani lamandla kagesi we-AC. Uma uthatha i-multimeter yedijithali futhi uyihlole ngokucophelela, ungabona zombili lezi zimpawu. Kodwa-ke, uma ufuna ukusebenzisa lezi zilungiselelo ku-multimeter, kufanele wazi ukuthi yimaphi amasekhethi asebenza nge-DC voltage nokuthi yimaphi amasekhethi ane-AC voltage.
Ngingayithola kuphi i-VAC?
Izindawo eziningi zaseNyakatho Melika zisebenzisa i-VAC engu-110 noma engu-120 emakhaya avamile. Ungathola lokhu kumaka kumadivayisi e-AC. Kodwa-ke, uma kukhulunywa ngeYurophu basebenzisa i-220VAC noma i-240VAC.
Ithiphu Esheshayo: Amandla kagesi angu-120 V AC ahluka ukusuka ku-170 V ukuya ku-zero. Bese ikhuphuka futhi ibe ngu-170V. Isibonelo, ukushintshashintsha kwamandla kuphindaphindwa izikhathi ezingu-60 ngomzuzwana owodwa. Yingakho imithombo eminingi ye-AC ingu-60Hz.
I-RMS voltage 120 VAC
Eqinisweni, i-120V AC ishintshana ku-170V bese yehlela kuqanda. Leli gagasi le-sine lilingana no-120 volts DC futhi laziwa nge-RMS.
Ungabala kanjani inani le-RMS?
Nali ifomula yokubala i-RMS.
VI-RMS V=PHAKATHI*1/√2
I-voltage ephezulu 170V.
Ngakho-ke
VI-RMS = 170*1/√2
VI-RMS = 120.21 V
Kungani sisebenzisa i-VAC?
Uzolahlekelwa amandla athile njalo uma uzama ukuguqula amandla usuka kolunye uhlobo uye kwelinye. Ngakho-ke, ukuze kuncishiswe lokhu kulahleka kwamandla, amajeneretha akhiqiza ugesi ngamandla kagesi aphezulu futhi awudlulise ngendlela yamandla ashintshashintshayo.
Nokho, amakhaya ajwayelekile awawudingi ugesi wamandla kagesi aphezulu. Ngenxa yalokhu, ugesi we-AC udlula kusiguquli esisuka phansi bese ukhiqiza i-voltage ephansi ukuze isetshenziswe ekhaya.
kubalulekile: Imishini eminingi kagesi ayisebenzi ngamandla e-AC. Esikhundleni salokho, basebenzisa amandla e-DC aphansi. Ngakho-ke, amandla e-AC kagesi aphansi aguqulwa abe amandla kagesi aphansi e-DC ngesilungisi sebhuloho.
Bheka ezinye zezihloko zethu ngezansi.
- Ukusetha i-multimeter yebhethri lemoto
- Voltage drop test generator
- Indlela yokuhlola ibhethri yemoto nge-multimeter
Izixhumanisi zevidiyo
