Lub toroidal tam sim no transformer yog ib hom qhov rais lossis lub nplhaib CT uas siv lub toroidal -doughnut- zoo li - cov tub ntxhais sib nqus ua nws cov khoom siv hlau nplaum tseem ceeb. Cov tub ntxhais toroidal feem ntau yog ua los ntawm siab - cov khoom permeability xws li silicon steel, permalloy, lossis ferrite, uas tso cai rau cov hlau nplaum sib nqus kom ntws zoo los ntawm cov tub ntxhais nrog qhov poob tsawg. Qhov thib ob winding yog mob nyob ib ncig ntawm lub toroidal core, thiab tus thawj conductor kis los ntawm lub hauv paus aperture, ua raws li ib tug tib - tig thawj winding.
Lub toroidal geometry muaj ob peb yam tseem ceeb sib nqus zoo. Qhov kaw, nruam sib nqus txoj hauv kev ntawm lub toroidal core minimizes huab cua qhov sib txawv thiab txo cov pa tawm inductance, ua rau muaj txiaj ntsig sib nqus sib txuas ntawm thawj thiab theem nrab circuits. Qhov kev sib txuas ua tau zoo no txhais ua qhov ntsuas qhov tseeb, qhov tsis zoo ntawm theem qis, thiab kev ua haujlwm ruaj khov thoob plaws ntau yam ntawm cov thawj tam sim no. Lub voj voog ncig- ntu ntawm cov tub ntxhais toroidal tseem faib cov hlau nplaum sib nqus sib npaug, txo qis cov dej ntws tawm thiab txo qhov sib txawv ntawm qhov sib txawv ntawm qhov tam sim no theem nrab.
Toroidal CTs tau siv dav hauv kev ntsuas ntsuas qhov tseeb uas qhov tseeb thiab ruaj khov yog qhov tseem ceeb. Lawv feem ntau pom muaj nyob rau hauv cov khoom siv hluav taws xob zoo ntsuas, ntsuas hluav taws xob, ntsuas ntsuas, thiab ntsuas kev lag luam. Hauv cov ntawv thov siab -voltage, toroidal CTs feem ntau yog siv rau hauv cov pa roj-insulated switchgear (GIS) thiab lwm yam khoom siv hluav taws xob compact siab uas lawv cov khoom siv hluav taws xob zoo sib nqus thiab qhov loj me yog qhov zoo.
Ib qho ntawm cov tswv yim xav txog nrog toroidal CTs yog tias thawj tus neeg xyuas pib yuav tsum tau hla los ntawm lub hauv paus aperture thaum lub sij hawm installation, uas feem ntau yuav tsum tau disconnecting Circuit Court. Qhov no txwv lawv cov kev siv hauv cov ntawv thov rov qab uas qhov kev cuam tshuam ntawm Circuit Court tsis ua tau. Tsis tas li ntawd, cov tub ntxhais toroidal yuav tsum muaj qhov loj me kom haum rau tus neeg xyuas pib, thiab lub qhov rais qhib yuav tsum haum rau lub cable lossis busbar yam tsis muaj kev tshem tawm ntau dhau uas tuaj yeem cuam tshuam kev ntsuas qhov tseeb.
Los ntawm kev pom kev ua tau zoo, toroidal CTs muaj nyob rau hauv ntau yam ntawm cov chav kawm raug thiab cov kev ntsuas hnyav. High-precision toroidal CTs tuaj yeem ua tiav cov chav kawm raug ntawm 0.1 lossis 0.2 rau kev kuaj thiab ntsuas cov ntawv thov, thaum cov txheej txheem kev lag luam toroidal CTs feem ntau tau teev tseg ntawm 0.5 lossis 1. Kev Tiv Thaiv- qib toroidal CTs muaj nyob rau hauv 5P thiab 10P chav kawm rau kev tiv thaiv kev tiv thaiv.
Hauv cov ntsiab lus, toroidal tam sim no transformer sawv cev rau qib siab tshaj plaws ntawm kev sib nqus ntawm qhov rais -hom CTs. Nws qhov nruam toroidal core muab qhov raug zoo heev, qhov tsis zoo ntawm theem qis, thiab kev ua haujlwm ruaj khov, ua rau nws qhov kev xaiv zoo tshaj plaws rau kev ntsuas qhov tseeb thiab siab - kev tiv thaiv kev ntseeg siab. Cov kev txwv tseem ceeb yog kev teeb tsa tsis yooj yim thiab tus nqi siab dua piv rau qhov yooj yim lub qhov rais lossis bar - hom qauv tsim, tab sis rau cov ntawv thov uas ntsuas qhov tseeb yog qhov tseem ceeb, toroidal CT feem ntau yog qhov kev xaiv zoo tshaj plaws.