Kev nyab xeeb yeej ib txwm yog qhov tseem ceeb tshaj plaws thaum nws los txog rau kev teeb tsa hluav taws xob. Lub cuab yeej tseem ceeb los xyuas kom muaj kev nyab xeeb ntawm lub voj voog yog lub qhov hloov cais. Hauv tsab xov xwm no, peb yuav los saib ze dua txog cov qhov hloov cais yog dab tsi, lawv hom, thiab qhov tseem ceeb ntawm kev teeb tsa kom raug.
An kev hloov pauv cais tawmLub qhov hluav taws xob cais hluav taws xob, tseem hu ua lub qhov hluav taws xob cais lossis lub tshuab cais hluav taws xob, yog ib lub cuab yeej siv los cais lub voj voog hluav taws xob ntawm lub zog hluav taws xob. Nws lub hom phiaj tseem ceeb yog txiav lub zog rau lub kaw lus hluav taws xob lossis cov khoom siv kom kev saib xyuas thiab kho tuaj yeem ua tiav tau zoo yam tsis muaj kev pheej hmoo ntawm kev raug hluav taws xob poob siab. Lub qhov hluav taws xob cais ua haujlwm ua lub cev thaiv ntawm lub zog hluav taws xob thiab lub voj voog, muab ib txheej tiv thaiv ntxiv.
Muaj ntau hom kev hloov cais hluav taws xob sib txawv, sib txawv ntawm kev tsim thiab kev siv. Ib hom uas siv ntau yog lub fused switch disconnector, uas muab kev ua haujlwm ntawm lub switch disconnector thiab lub fuse ua ke. Nws tsis yog tsuas yog cais lub voj voog xwb tab sis kuj muab kev tiv thaiv overcurrent. Lwm hom kev hloov pauv uas siv ntau yog lub fuse switch, uas tsuas yog qhib lub voj voog thiab tsis muab kev tiv thaiv. Kev xaiv ntawm lub isolating switch nyob ntawm qhov xav tau tshwj xeeb thiab qhov xwm txheej ntawm kev teeb tsa hluav taws xob.
Yuav tsum tau teeb tsa lub qhov hluav taws xob cais kom raug kom ntseeg tau tias nws ua haujlwm tau zoo thiab ua raws li cov qauv kev nyab xeeb. Yuav tsum ua raws li cov lus qhia ntawm cov chaw tsim khoom thiab txhua txoj cai lij choj thaum teeb tsa lub qhov hluav taws xob cais. Cov qhov hluav taws xob yuav tsum tau teeb tsa rau qhov chaw yooj yim nkag mus tau thiab cim kom meej meej los qhia lawv lub hom phiaj. Nws tseem ceeb heev uas yuav tsum xyuas kom meej tias lub qhov hluav taws xob cais tau ntsuas kom haum rau lub nra hnyav hluav taws xob uas nws yuav txiav tawm.
Kev saib xyuas lub qhov hluav taws xob cais tawm kuj tseem ceeb heev kom ntseeg tau tias nws ua haujlwm tau zoo. Tshawb xyuas tsis tu ncua seb puas muaj cov cim qhia tias puas lawm, puas tsuaj lossis xoob. Yog tias pom muaj teeb meem, yuav tsum ua cov kauj ruam tam sim ntawd los kho lossis hloov lub qhov hluav taws xob cais tawm. Tsis tas li ntawd, kev kuaj xyuas tsis tu ncua yog qhov tseem ceeb kom paub tseeb tias lub qhov hluav taws xob ua haujlwm tau zoo thiab xyuas kom meej tias nws ua haujlwm raws li qhov xav tau.
Cov hloov pauv cais tawmUa lub luag haujlwm tseem ceeb hauv ntau yam lag luam thiab ib puag ncig. Lawv siv dav hauv cov tsev lag luam, cov chaw tsim khoom lag luam, thiab txawm tias cov chaw nyob. Yog tias muaj teeb meem hluav taws xob lossis xwm txheej ceev, lub qhov hluav taws xob cais tawm tuaj yeem txiav hluav taws xob sai sai, txo qhov kev pheej hmoo ntawm kev raug mob hluav taws xob lossis kev puas tsuaj ntxiv.
Tsis tas li ntawd xwb, cov qhov hluav taws xob cais tawm yog ib feem tseem ceeb ntawm kev ntsuas kev nyab xeeb rau kev teeb tsa hluav taws xob. Lawv feem ntau suav nrog ua ib feem ntawm lub kaw lus kev nyab xeeb sib xyaw ua ke, uas yuav muaj lwm yam khoom siv xws li cov khoom siv tam sim no seem (RCDs) lossis cov khoom siv hluav taws xob tawg. Kev sib xyaw ua ke ntawm cov khoom siv tiv thaiv no ua rau muaj kev nyab xeeb ntawm lub kaw lus hluav taws xob ntau ntxiv, txo qhov muaj feem yuav raug xwm txheej hluav taws xob, thiab txhim kho kev coj noj coj ua kev nyab xeeb hluav taws xob tag nrho.
Hauv kev xaus lus, cov qhov hloov pauv cais tawm yog qhov tseem ceeb kom ntseeg tau tias muaj kev nyab xeeb hluav taws xob thaum lub sijhawm kho thiab kho. Lawv muab ib txheej kev tiv thaiv tseem ceeb, cais lub voj voog ntawm lub zog hluav taws xob thiab tiv thaiv kev pheej hmoo ntawm kev poob hluav taws xob. Kev teeb tsa kom zoo, kev saib xyuas tsis tu ncua thiab kev ua raws li cov cai kev nyab xeeb yog qhov tseem ceeb rau nws txoj haujlwm zoo. Kev suav nrogdisconnect switchesrau hauv cov txheej txheem hluav taws xob yog ib kauj ruam tseem ceeb hauv kev tsim kom muaj ib puag ncig muaj kev nyab xeeb thiab txo qis cov kev phom sij uas cuam tshuam nrog hluav taws xob.
Lub sijhawm tshaj tawm: Kaum Ib Hlis-28-2023