Qhov qhib nruab nrab qhov hluav taws xob yog dab tsi? (Tus kws hluav taws xob piav qhia)
Txheem
Txoj haujlwm ntawm cov xaim nruab nrab yog ua kom tiav lub voj voog rov qab mus rau lub vaj huam sib luag thiab tom qab ntawd mus rau kab transformer.
Raws li ib tug kws paub txog hluav taws xob, kuv paub yuav ua li cas qhia rau koj txog qhov qhib qhov hluav taws xob nruab nrab. Koj lub cuab yeej tau txais lub zog los ntawm cov xaim nruab nrab thaum cov kab nruab nrab qhib. Tej yam txawv txawv tshwm sim thaum cov hlau no raug txiav. Yog li ntawd, nws yog ib qho tseem ceeb heev kom nkag siab txog lub tswv yim ntawm qhov qhib nruab nrab qhov hluav taws xob txhawm rau tiv thaiv kev raug mob hauv koj lub tsev.
Qhia Txog: Ib qho kev sib txuas tsis sib haum xeeb ntawm ob lub ntsiab lus ntawm ib lub xov hlau nruab nrab hu ua "open neutral". Cov hlau kub kub yog cov kav dej uas nqa hluav taws xob mus rau qhov hluav taws xob, khoom siv, thiab khoom siv. Lub voj voog uas coj rov qab mus rau lub vaj huam sib luag hluav taws xob raug kaw nrog ib lub xov hlau nruab nrab. Ib qho xoob lossis tsis sib txuas qhib nruab nrab tuaj yeem ua rau lub teeb flickering lossis tsis sib xws ntawm cov khoom siv.
Zoo, cia peb mus rau hauv ntau yam hauv qab no.
Open neutral txhais li cas?
Ib qho qhib nruab nrab ntawm 120-volt Circuit Court hauv koj lub tsev qhia tau hais tias ib qho tawg dawb tsis muaj hlau. Lub Circuit Court tsis tiav yog tias qhov nruab nrab tawg vim qhov tseeb tias lub vaj huam sib luag tsis muaj hluav taws xob.
Cov xaim nruab nrab ua rau muaj kev mus ncig thaum nws tawg vim nws txoj haujlwm yog rov qab mus rau koj lub hwj chim. Qee lub zog kuj rov qab los ntawm ib lub xov hlau ua haujlwm lossis hauv av xaim. Yog li ntawd, lub teeb nyob rau hauv koj lub tsev yuav zoo li ci dua los yog dimmer.
Ntawm no yog ib qho kev piav qhia luv luv ntawm lub luag haujlwm ntawm txhua lub xaim hauv Circuit Court kom koj nkag siab zoo dua Asmeskas cov tshuab hluav taws xob thiab yuav ua li cas cov xaim nruab nrab ua haujlwm: (1)
hlau kub
Qhov kub (dub) xaim xaim tam sim no los ntawm lub zog hluav taws xob mus rau qhov hluav taws xob hauv koj lub tsev. Txij li thaum hluav taws xob ib txwm ntws los ntawm nws tshwj tsis yog lub hwj chim muab tua, nws yog cov xaim txaus ntshai tshaj plaws hauv Circuit Court.
Neutral hlau
Qhov nruab nrab (dawb xaim) ua tiav lub voj voog, rov qab lub zog rau lub hauv paus, cia lub zog ntws mus tas li.
Cov kab nruab nrab yog siv los muab lub zog 120-volt xav tau rau lub teeb thiab lwm yam khoom siv me me. Koj tuaj yeem tsim 120 volt Circuit Court los ntawm kev txuas lub cuab yeej mus rau ib qho ntawm cov xov hlau kub thiab cov xov hlau nruab nrab vim tias yog qhov sib txawv ntawm txhua ceg kub ntawm lub vaj huam sib luag thiab hauv av.
Hauv av hlau
Cov xaim hauv av, feem ntau hu ua cov xaim ntsuab lossis tooj liab liab, yog qhov tseem ceeb rau koj txoj kev nyab xeeb, txawm tias tsis muaj hluav taws xob ntws los ntawm nws. Thaum muaj hluav taws xob tsis ua haujlwm, xws li luv luv, nws xa hluav taws xob rov qab mus rau lub ntiaj teb.
Qhib nruab nrab vaj huam sib luag
Cov xov hlau kub tseem nyob yog tias lub ntsiab nruab nrab cuam tshuam ntawm lub vaj huam sib luag thiab cov kab transformer. Txij li cov hlau tsis huv raug thaiv los ntawm kev khiav ntawm hluav taws xob hauv ib txhais ceg kub, qee qhov nws mus rau hauv av thiab qee qhov mus dhau ntawm lwm ceg kub.
Txij li thaum ob txhais ceg kub txuas nrog, lub load ntawm ib ceg cuam tshuam rau lub load ntawm lwm yam, zoo hloov tag nrho cov circuits hauv tsev mus rau 240 volt circuits. Lub teeb ntawm ceg nqa lub teeb lub teeb tau txais lub zog ntau dua thiab ua kom ci dua, tab sis lub teeb ntawm ceg nqa lub nra hnyav dhau los ua dimmer.
Nyob rau hauv cov xwm txheej txaus ntshai no, cov cuab yeej tuaj yeem ua kom sov thiab ntes hluav taws. Teem sijhawm nrog tus kws kho hluav taws xob sai li sai tau.
Kev cuam tshuam ntawm txoj haujlwm qhib nruab nrab
Cov hlau dawb raug txiav tawm thaum muaj qhov qhib nruab nrab ntawm ib qho khoom siv. Los ntawm tus xov tooj kub, hluav taws xob tseem tuaj yeem ncav cuag lub gadget, tab sis tsis rov qab mus rau lub vaj huam sib luag. Txawm tias thaum lub cuab yeej tsis ua haujlwm, nws tseem muaj lub zog txaus los ua rau koj poob siab. Tag nrho cov khoom siv nrog tom qab nws nyob hauv Circuit Court ua haujlwm tib yam.
Nrhiav qhov qhib Circuit Court
Tej zaum koj yuav muaj qhov qhib qhov hluav taws xob los yog qhov qhib nruab nrab yog tias ib lossis ntau lub qhov hluav taws xob tsis ua haujlwm. Lub qhov hluav taws xob thiab tag nrho cov ntsaws rau hauv yuav raug hluav taws xob yog tias lub qhov hluav taws xob kub qhib. Lub qhov (sockets) yuav tsis ua haujlwm yog tias qhov nruab nrab qhib, tab sis lawv tseem yuav muaj zog. Siv lub plug-in circuit tester los kuaj rau "qhib rau kub" lossis "qhib nruab nrab".
Cov cuab yeej ze tshaj plaws rau lub vaj huam sib luag yuav raug muab tua yog tias kab teeb lossis lub qhov (sockets) raug kuaj kom qhib nruab nrab. Qhov no feem ntau yog kev sib txuas tsis muaj zog, thiab yog tias muaj, wiggling tus tester yuav ua rau nws oscillate ntawm "qhib nruab nrab" thiab "ib txwm".
Lub qhov hluav taws xob qhib hauv av lossis lub teeb hloov yuav tseem ua haujlwm, tab sis vim nws tsis muaj kev nyab xeeb los yog cov kav dej nrog lub ntiaj teb, nws tuaj yeem ua rau koj poob siab. (2)
Ua tib zoo saib qee qhov ntawm peb cov lus hauv qab no.
- Vim li cas cov hlau hauv av kub ntawm kuv lub laj kab hluav taws xob
- Kub hlau kab los yog load
- Yuav ua li cas los txiav txim qhov nruab nrab hlau nrog ib tug multimeter
tswv yim pom zoo
(1) American Electrical Systems - https://www.epa.gov/energy/about-us-electricity-system-and-its-impact-environment.
(2) ntiaj teb - https://climate.nasa.gov/news/2469/10-interesting-things-about-earth/
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