Vim li cas lub transformer core thiaj li yuav tsum tau grounded?

1.Vim li cas lub transformer core thiaj li yuav tsum tau grounded?

Thaum lub transformer ua haujlwm, lub plawv hlau, lub plawv hlau ruaj khov, thiab cov qauv hlau ntawm lub winding, qhov chaw, cov khoom, thiab lwm yam yog nyob rau hauv lub zog hluav taws xob muaj zog. Nyob rau hauv qhov kev ua ntawm lub teb hluav taws xob, lawv muaj lub peev xwm hauv av siab dua. Yog tias lub plawv hlau tsis tau grounded, yuav muaj qhov sib txawv ntawm nws thiab lub clamp grounded thiab lub tank roj. Nyob rau hauv qhov kev ua ntawm qhov sib txawv, kev tso tawm tsis tu ncua yuav tshwm sim.

Ntxiv mus, thaum lub transformer ua haujlwm, muaj lub zog sib nqus muaj zog nyob ib puag ncig lub winding. Lub plawv hlau, cov qauv hlau, qhov chaw, cov khoom, thiab lwm yam yog txhua yam nyob rau hauv lub zog sib nqus tsis sib xws. Qhov deb ntawm lawv thiab lub winding tsis sib npaug. Yog li ntawd, txhua qhov loj ntawm lub zog electromotive uas tshwm sim los ntawm lub zog sib nqus ntawm cov qauv hlau, qhov chaw, cov khoom, thiab lwm yam kuj tsis sib npaug, thiab kuj muaj qhov sib txawv ntawm ib leeg. Txawm hais tias qhov sib txawv tsis loj, nws kuj tuaj yeem rhuav tshem qhov sib txawv me me ntawm rwb thaiv tsev, uas kuj tseem yuav ua rau muaj kev tawm tsam me me tas mus li.

Txawm hais tias nws yog qhov tshwm sim ntawm kev tso tawm tsis tu ncua uas yuav tshwm sim los ntawm qhov cuam tshuam ntawm qhov sib txawv, lossis qhov tshwm sim ntawm kev tso tawm me me uas tshwm sim los ntawm kev tawg ntawm qhov sib txawv me me, nws tsis raug tso cai, thiab nws nyuaj heev los xyuas cov khoom ntawm cov kev tso tawm tsis tu ncua no. ntawm.

Qhov kev daws teeb meem zoo yog kom lub hauv paus hlau, lub hauv paus hlau ruaj khov, thiab cov qauv hlau, cov khoom, cov khoom sib txuas, thiab lwm yam, kom lawv nyob ntawm tib lub zog av zoo li lub tank roj. Lub hauv paus ntawm lub transformer tau grounded ntawm ib qho taw tes, thiab nws tsuas yog tuaj yeem grounded ntawm ib qho taw tes. Vim tias cov ntawv hlau silicon ntawm lub hauv paus hlau tau insulated los ntawm ib leeg, qhov no yog los tiv thaiv kev tsim cov hluav taws xob eddy loj. Yog li ntawd, txhua daim ntawv hlau silicon yuav tsum tsis txhob grounded lossis grounded ntawm ntau qhov taw tes. Txwv tsis pub, cov hluav taws xob eddy loj yuav tshwm sim. Lub hauv paus kub heev.

Lub plawv hlau ntawm lub transformer yog grounded, feem ntau txhua daim ntawm silicon steel sheet ntawm lub plawv hlau yog grounded. Txawm hais tias cov silicon steel sheets yog insulated, lawv cov nqi rwb thaiv tsev tsis kam yog me heev. Lub zog hluav taws xob tsis sib xws thiab lub zog magnetic teb tuaj yeem ua rau cov nqi hluav taws xob siab uas tshwm sim hauv cov silicon steel sheets ntws los ntawm hauv av mus rau hauv av los ntawm cov silicon steel sheets, tab sis lawv tuaj yeem tiv thaiv cov eddy currents. Ntws los ntawm ib daim mus rau lwm qhov. Yog li ntawd, tsuav yog ib daim ntawm silicon steel sheet ntawm lub plawv hlau yog grounded, nws yog sib npaug rau grounding tag nrho cov hlau core.

Nws yuav tsum tau sau tseg tias lub plawv hlau ntawm lub transformer yuav tsum tau grounded ntawm ib qho taw tes, tsis yog ntawm ob qho taw tes, thiab ntau dua ntawm ntau qhov taw tes, vim tias ntau qhov taw tes grounding yog ib qho ntawm cov qhov tsis zoo ntawm lub transformer.2. Vim li cas ho tsis tau lub transformer core yuav tsum tau grounded ntawm ntau lub ntsiab lus?

Qhov laj thawj uas cov transformer core laminations tsuas yog tuaj yeem grounded ntawm ib qho taw tes yog tias yog tias muaj ntau tshaj ob lub ntsiab lus grounding, ib lub voj voog yuav tsim ntawm cov ntsiab lus grounding. Thaum txoj kev loj hla dhau lub voj voog kaw no, cov hluav taws xob circulating yuav tsim nyob rau hauv nws, ua rau muaj kev sib tsoo vim yog overheating sab hauv. Lub molten hauv zos hlau core yuav tsim ib qho luv luv-circuit fault ntawm cov hlau chips, uas yuav ua rau cov hlau poob ntau ntxiv, uas yuav cuam tshuam loj heev rau kev ua haujlwm thiab kev ua haujlwm ib txwm ntawm lub transformer. Tsuas yog cov hlau core silicon steel sheet tuaj yeem hloov kho rau kev kho. Yog li ntawd, lub transformer tsis raug tso cai kom grounded ntawm ntau qhov taw tes. Muaj ib qho thiab tsuas yog ib qho av.

3. Kev sib txuas ntawm ntau lub hauv av yog qhov yooj yim los tsim kom muaj kev sib hloov tam sim no thiab yooj yim los tsim kom muaj cua sov.

Thaum lub sijhawm ua haujlwm ntawm lub transformer, cov khoom hlau xws li lub plawv hlau thiab cov clamps yog nyob rau hauv lub zog hluav taws xob muaj zog, vim tias electrostatic induction yuav tsim lub peev xwm ntab ntawm lub plawv hlau thiab cov khoom hlau, thiab lub peev xwm no yuav tso tawm mus rau hauv av, uas tau kawg tsis lees txais Yog li ntawd, lub plawv hlau thiab nws cov clips yuav tsum tau grounded kom raug thiab ntseeg tau (tshwj tsis yog rau lub plawv bolts xwb). Lub plawv hlau tsuas yog tso cai rau grounded ntawm ib qho taw tes. Yog tias ob lossis ntau qhov taw tes tau grounded, lub plawv hlau yuav tsim ib lub voj kaw nrog lub hauv paus av thiab hauv av. Thaum lub transformer khiav, magnetic flux yuav hla dhau lub voj kaw no, uas yuav tsim ib qho hu ua circulating tam sim no, ua rau lub plawv hlau overheating hauv zos, thiab txawm tias hlawv cov hlau thiab cov txheej insulating.

Hauv kev xaus lus: lub plawv hlau ntawm lub transformer tsuas yog tuaj yeem grounded ntawm ib qho taw tes, thiab tsis tuaj yeem grounded ntawm ob lossis ntau qhov taw tes.