Vim li cas ib kawg ntawm CT yuav tsum tau grounded?

Qhov thib ob winding ntawmtam sim no transformerthiab lub transformer voltage yuav tsum tau grounded thaum lub sijhawm ua haujlwm, yog li ntawd tiv thaiv qhov hluav taws xob siab los ntawm kev nkag mus rau qhov hluav taws xob qis los ntawm lub transformer hauv series tom qab lub rwb thaiv tsev ntawm lub transformer raug rhuav tshem, ua rau cov cuab yeej thiab cov neeg ua haujlwm raug mob. Qhov thib ob grounding ntawm lub transformer yuav tsis cuam tshuam rau kev ua haujlwm ib txwm ntawm cov khoom siv, tab sis kuj xyuas kom meej tias cov neeg ua haujlwm thiab cov khoom siv muaj kev nyab xeeb.
Yuav kom muaj kev nyab xeeb, sab thib ob ntawm lub transformer CURRENT yuav tsum tau grounded los tiv thaiv tib neeg lub cev thiab cov khoom siv thaum sab thib ob ntawm lub transformer tam sim no muaj kev phom sij siab.

Tam sim no transformerkev ua

Hauv cov txheej txheem tsim khoom, peb saib xyuas qhov xwm txheej khiav ntawm txhua yam khoom siv hauv lub kaw lus kom ntseeg tau tias kev ua haujlwm zoo ntawm lub zog fais fab.
Lub tshuab hloov pauv tam sim no feem ntau hloov cov tam sim no loj ntawm lub voj voog tseem ceeb mus rau hauv qhov me me tam sim no uas yog ncaj qha rau nws, thiab thaum kawg tso tawm qhov me me tam sim no mus rau qhov cuab yeej thib ob, kev tiv thaiv relay thiab cov cuab yeej siv tsis siv neeg rau kev siv.
Yog li ntawd, lub tshuab hluav taws xob tam sim no yog qhov chaw tswj hluav taws xob, kev tswj hwm, kev ntsuas thiab kev tiv thaiv, thiab tseem yog lub hauv paus ntawm kev sib txuas ntawm lub voj voog theem nrab thiab lub voj voog thawj zaug.

Vim li cas sab thib ob ntawm CT thiaj tsis qhib tau?
Vim tias lub voj voog theem ob ntawm CT qhib, qhov tam sim no theem ob yuav ploj mus, thiab qhov demagnetization kuj yuav ploj mus, ua rau muaj qhov sib nqus siab hauv lub hauv paus.
Thiab vim tias tus naj npawb ntawm cov winding tig ntawm sab thib ob yog loj dua li tus naj npawb ntawm cov winding tig ntawm sab thawj, yog li thaum sab thib ob qhib, yuav muaj qhov hluav taws xob zoo, qee zaum txog ntau txhiab volts, yog li nws tsis tsuas yog ua rau cov khoom siv sab thib ob muaj kev phom sij xwb, tab sis kuj ua rau muaj kev nyab xeeb ntawm tus kheej.

Vim li cas yuav tsumcov hloov pauv tam sim noyuav tsum muaj av?

Nws yog los xyuas kom muaj kev nyab xeeb, ib qho yog kev nyab xeeb ntawm cov khoom siv, ob qho yog kev nyab xeeb ntawm tus kheej.
Muaj cov capacitors faib tawm ntawm thawj winding thiab secondary winding ntawm ct thiab ntawm secondary winding thiab av.
Qhov voltage divider ntawm qhov distributed capacitance ua rau lub secondary winding los tsim kom muaj voltage siab dua rau hauv av.
Tsis tas li ntawd xwb, qhov rwb thaiv tsev ntawm lub winding thawj thiab lub winding thib ob raug puas tsuaj vim qee qhov laj thawj, yog li qhov hluav taws xob siab ntawm lub voj voog thawj zaug yuav raug ntxiv ncaj qha rau lub voj voog thib ob, uas yog qhov txaus ntshai heev rau cov khoom siv thib ob thiab kev nyab xeeb ntawm tus kheej.

Yog li ntawd, sab thib ob ntawmCTyuav tsum tau grounded, thiab lub voj voog thib ob tsuas muaj ib qho chaw hauv av xwb. Tsis pub ntau qhov chaw hauv av.