Ib tug bar hom tam sim no transformer yog ib tug tam sim no transformer nyob rau hauv uas cov thawj winding muaj ib tug khoom conductor los yog busbar mus tas li ua rau lub CT sib dhos. Qhov thawj bar no ua raws li ib zaug xwb - tig thawj winding, thaum lub thib ob winding raug mob nyob ib ncig ntawm lub laminated magnetic core uas nyob ib ncig ntawm lub bar. Lub bar - hom kev tsim kho yog ib qho ntawm cov khoom siv ruaj khov thiab ruaj khov CT tsim muaj, ua rau nws tshwj xeeb zoo rau kev siv siab -tam sim no thiab siab - txhaum- qib kev siv.
Lub ntsiab lus ntawm lub bar hom CT yog tias thawj tus neeg xyuas pib yog ib feem ntawm lub transformer nws tus kheej es tsis yog ib tug cais cable los yog busbar uas hla lub qhov rais. Lub hauv paus bar feem ntau yog ua los ntawm tooj liab nrog lub voj voog lossis duab plaub - ntu loj los nqa cov ntsuas thawj tam sim no thiab tiv thaiv cov thermal thiab mechanical stresses ntawm luv luv - cov xwm txheej hauv Circuit Court. Cov tub ntxhais sib nqus-feem ntau laminated silicon steel- yog sib sau ua ke nyob ib ncig ntawm lub bar, thiab lub thib ob winding yog mob nyob rau hauv lub tub ntxhais los tsim ib tug tam sim no proportional rau cov thawj tam sim no.
Vim hais tias cov thawj bar yog nyob mus ib txhis ua rau hauv CT, bar -hom transformers yog Hoobkas- sib dhos thiab sim ua tiav units. Qhov no ua kom muaj kev tswj xyuas meej ntawm qhov kev hloov pauv thiab cov yam ntxwv sib nqus, ua rau muaj qhov tseeb zoo thiab rov ua dua. Bar- hom CTs feem ntau tau teev tseg hauv cov chav kawm raug xws li 0.2 txog 1 rau kev ntsuas thiab 5P lossis 10P rau kev tiv thaiv daim ntawv thov. Kev tsim kho muaj zog kuj tso cai rau bar-hom CTs siv nyob rau sab nraum zoov thiab hnyav ib puag ncig thaum muab ntim kom zoo lossis nyob hauv huab cua- cov ntaub thaiv tiv thaiv.
Bar hom CTs feem ntau yog siv hauv hnyav -lub luag haujlwm, siab - daim ntawv thov tam sim no. Lawv feem ntau pom muaj nyob rau hauv cov chaw siv hluav taws xob, cov khoom siv hluav taws xob tso tawm hluav taws xob, cov khoom siv hluav taws xob loj loj, thiab cov hluav taws xob faib hluav taws xob uas cov thawj tam sim no tuaj yeem nyob ntawm ntau pua mus rau ntau txhiab amperes. Lub peev xwm ntawm lub hauv paus bar los tswj cov kev kub ceev tam sim no thiab tiv thaiv cov hluav taws xob hluav taws xob tsim tawm thaum lub sij hawm luv luv - cov xwm txheej hauv Circuit Court ua rau bar - hom CTs yog qhov kev xaiv zoo rau cov txheej txheem tseem ceeb.
Kev teeb tsa ntawm bar -hom CTs yuav tsum tau ua kom lub hauv paus Circuit Court yog de-energized thiab lub bar txuas nrog series nrog lub hwj chim Circuit Court. Qhov no txhais tau hais tias bar - hom CTs feem ntau yog ntsia thaum lub sij hawm tsim kho tshiab lossis thaum lub sij hawm kev npaj tu ncua es tsis yog nyob rau hauv retrofit cov xwm txheej. Lub bar tseem ceeb yuav tsum yog qhov loj me thiab txuas nrog cov khoom siv hluav taws xob, thiab cov kab hluav taws xob thib ob yuav tsum raug xa mus rau cov ntsuas ntsuas lossis cov cuab yeej tiv thaiv.
Los ntawm kev xav tsim, bar-hom CTs muaj ntau yam zoo dua li qhov txhab lossis qhov rais hom. Lub bar ruaj ruaj tshem tawm qhov sib txawv uas cuam tshuam nrog thaj chaw - teeb tsa thawj tus neeg xyuas pib, kom ntseeg tau tias kev ua tau zoo ib yam ntawm chav tsev mus rau chav tsev. Kev tsim kho muaj zog muab kev ruaj ntseg zoo heev thiab ua haujlwm rau kev vibration, ua bar - hom CTs haum rau cov ntawv thov uas muaj kev ntxhov siab rau cov neeg kho tshuab. Txawm li cas los xij, bar- hom CTs feem ntau yog bulkier thiab hnyav dua qhov rais lossis cais- hom tseem ceeb, xav tau ntau qhov chaw txuas thiab kev txhawb nqa.
Nyob rau hauv cov ntsiab lus, bar hom tam sim no transformer yog ib tug txhim khu kev qha thiab robust tov rau siab - tam sim no ntsuas thiab tiv thaiv. Nws qhov ruaj khov thawj bar muab kev ua haujlwm zoo heev thiab kev ua haujlwm thermal, ua rau nws yog qhov kev xaiv zoo tshaj plaws rau kev siv hluav taws xob thiab kev lag luam uas muaj kev ntseeg siab thiab kav ntev yog qhov tseem ceeb.