Hauv kev xa hluav taws xob thiab kev xa tawm, qhov kev qhia tshwj xeeb hauv av ntawm transformer hlau core yog lub hauv paus tseem ceeb los xyuas kom meej lub sijhawm ntev -kev ruaj khov ntawm cov khoom siv. Tshwj xeeb tshaj yog rau cov khoom siv dav siv xws li cov roj ntim cov khoom siv hluav taws xob thiab 800kva transformer, nruj me ntsis raws li cov hauv paus ntsiab lus ntawm "txhim kho av ntawm ib qho chaw" yog qhov tseem ceeb tshaj. Tsab ntawv xov xwm no yuav piav qhia ntxaws txog cov laj thawj tseem ceeb thiab cov lus qhia tshwj xeeb rau kev hloov pauv hlau tub ntxhais hauv av, thiab muab cov khoom lag luam zoo ntawm JINShanMEN TECHNOLOGY CO., LTD los muab kev siv rau kev lag luam practitioners. Lub tuam txhab tsuas yog tsim cov roj immersed fais fab transformers, qhuav- hom fais fab transformers, roj immersed peb-dimensional coiled fais fab transformers, qhuav-hom peb-dimensional coiled fais fab transformers, mining explosion- pov thawj qhuav{{11} hom hluav taws xob 2},{ mining explosion, amorphous alloy fais fab transformers, nyob rau hauv load peev xwm tswj fais fab transformers, locomotive qhuav{13}}hom transformers, as well as prefabricated substations, modular substations, wind energy box type substations, high and low voltage switchgear and other transmission and distribution equipment.
I. Vim li cas thiaj yuav tsum tau cov tub ntxhais hlau hauv av?
Lub Hom Phiaj Core: Txhawm rau tiv thaiv qhov muaj peev xwm ntab los ntawm kev tsim tawm hauv cov tub ntxhais hlau thiab cov khoom siv hlau, yog li zam kom tsis txhob muaj qhov paug tawm hauv av (sparks / tawg) thiab ua kom muaj kev nyab xeeb thiab ruaj khov ntawm cov khoom siv. Qhov kev xav tau no muaj feem xyuam rau cov roj ntim cov khoom xa tawm,800kva transformer muajthiab txhua hom kev hloov pauv, thiab tseem yog ib qho ntawm cov ntsiab lus tseem ceeb tau tswj hwm nruj los ntawm JINShanMEN TECHNOLOGY CO., LTD hauv cov txheej txheem ntau lawm.
1. Cov tub ntxhais hlau yog nyob rau hauv lub zog hluav taws xob
Thaum lub transformer nyob rau hauv lub lag luam, nws windings yog txuas nrog high voltage thiab loj tam sim no, thiab qhov no haib alternating tam sim no yuav tsim ib tug xav hloov magnetic teb. Raws li lub hauv paus ntsiab lus ntawm electromagnetic induction, qhov hloov magnetic teb no yuav ua rau muaj hluav taws xob muaj peev xwm (voltage) ntawm cov tub ntxhais hlau nws tus kheej thiab tag nrho cov khoom nyob ib puag ncig hlau (xws li clamps, fasteners, roj tank phab ntsa, thiab lwm yam). Txawm hais tias nws yog 800kva transformer lossis loj - muaj peev xwm roj puv transformer, nws cov tub ntxhais hlau yog nyob rau hauv ib puag ncig hluav taws xob muaj zog rau lub sijhawm ntev, thiab tiam neeg ntawm kev tsim muaj peev xwm yog qhov kev zam.
2. Tej yam tshwm sim ntawm Floating Potential
Yog tias cov tub ntxhais hlau tsis yog hauv av, nws yog insulated los ntawm lub ntiaj teb (hauv av muaj peev xwm) thiab nyob rau hauv lub xeev "floating". Lub peev xwm induced tsis muaj txoj hauv kev tso tawm thiab yuav txuas ntxiv mus ntxiv thiab hloov pauv, ua rau "floating peev xwm". Muaj ib qho nruab nrab insulating (transformer roj, insulating cardboard) ntawm cov tub ntxhais hlau thiab ib puag ncig cov khoom siv hlau hauv av (xws li cov roj tso tsheb hlau luam). Thaum lub peev xwm sib txawv ntawm lawv nce siab txaus los rhuav tshem cov xov xwm insulating no, sib cuam tshuam cov pa tawm yuav tshwm sim. Rau cov roj ntim cov khoom siv hluav taws xob, qhov tso tawm no yuav cuam tshuam ncaj qha rau kev ua haujlwm ntawm cov roj hluav taws xob hluav taws xob, thiab txij li 800kva transformer feem ntau siv rau hauv cov khoom siv hluav taws xob, cov khoom siv hluav taws xob tuaj yeem cuam tshuam rau kev ua haujlwm ib puag ncig ntawm cov khoom siv hluav taws xob.
3. Qhov tshwm sim loj ntawm kev tso tawm
1) Kev puas tsuaj ntawm rwb thaiv tsev: Cov hluav taws xob tsis tu ncua yuav maj mam carbonize thiab erode cov khoom rwb thaiv tsev (xws li cov duab los qhia, ntoo blocks), txo nws cov rwb thaiv tsev lub zog, thiab thaum kawg tuaj yeem ua rau muaj kev cuam tshuam loj heev -tig luv Circuit Court lossis lub ntsiab rwb thaiv tsev tawg, uas ua rau tuag taus rau kev pab cuam lub neej ntawm cov roj ntim khoom transformers thiab 800kva transformer roj; cov roj hluav taws xob yuav ua rau cov hluav taws xob hloov hluav taws xob; tsim cov roj yam ntxwv xws li hydrogen (H₂) thiab acetylene (C₂H₂). Cov pa roj no yuav yaj hauv cov roj thiab ua rau cov roj tsis zoo, tshwj xeeb tshaj yog cuam tshuam rau cov roj -cov hluav taws xob rwb thaiv tsev ntawm cov roj ntim cov khoom siv hluav taws xob hloov pauv. 3) cuam tshuam nrog cov roj relay (buchholz relay): Cov roj tsim tawm tuaj yeem sib sau hauv cov roj relay, ua rau cov xa hluav taws xob xa hluav taws xob xa hluav taws xob tsis raug (lub teeb roj tswb) lossis txawm tias muaj kev cuam tshuam loj rau cov khoom siv hluav taws xob txuas ntxiv {7}) tsis muaj-load poob: Qhov tso tawm nws tus kheej siv lub zog, ua rau tsis muaj -load poob ntawm lub transformer thiab txo kev khiav hauj lwm efficiency, uas yuav ua rau kom cov nqi hluav taws xob rau 800kva transformer cov neeg siv uas tsom rau kev txuag hluav taws xob. 5) Generation of local overheating: high temperature will be generated at the discharge point, forming the local overheating point and the local overheating point.
Yog li ntawd, grounding cov tub ntxhais hlau yog los muab ib tug tso tawm channel rau cov induced nqi, yuam cov tub ntxhais hlau yuav tsum tau kho ntawm (hauv av) xoom muaj peev xwm, yog li tshem tawm cov muaj peev xwm sib txawv ntawm nws thiab lub hauv paus Cheebtsam, thiab tag nrho zam cov saum toj no - hais txog paug tshwm sim. Thaum tsim 800kva transformer thiab roj puv tis transformers, JINShanMEN TECHNOLOGY CO., LTD yuav nruj me ntsis siv cov txheej txheem hlau hauv av kom tsis txhob muaj kev pheej hmoo tawm ntawm qhov chaw.
II. Vim li cas Nws Yuav Tsum Tau "Grounded ntawm Ib Point"?
Qhov no yog qhov tseem ceeb thiab ilv ntawm qhov teeb meem. Cov hlau tseem ceeb hauv av tsis yog qhov kev txiav txim siab, tab sis tsuas yog xav tau ib qho taw tes thiab kev sib txuas txhim khu kev qha. Lub hauv paus ntsiab lus no yog qhov tseem ceeb rau txhua qhov kev hloov pauv, tshwj xeeb tshaj yog cov roj ntim cov khoom xa tawm thiab 800kva transformer. Thaum ua txhaum cai, nws yog ib qho yooj yim ua rau cov cuab yeej ua tsis tiav thiab txawm tias muaj kev nyab xeeb.
Lub Hom Phiaj
Txhawm rau kom tsis txhob tsim lub voj kaw los ntawm "ntau- taw tes hauv av", yog li tiv thaiv cov cim ntawm cov khoom siv tam sim no (eddy tam sim no) hauv lub voj los ntawm kev ua kom muaj cua sov hauv zos thiab ua kom muaj kev nyab xeeb ntawm kev hloov pauv. Rau cov roj ntim cov khoom siv hluav taws xob, lub hauv paus overheating tseem yuav ua kom cov roj hloov pauv thiab tsis zoo, thaum lub hauv paus overheating ntawm 800kva transformer yuav cuam tshuam rau nws lub peev xwm thauj khoom thiab ua rau lub zog tsis ruaj khov.
1. Kev phom sij ntawm ntau-Point Grounding
Cov tub ntxhais hlau ntawm lub transformer yog tsim los ntawm laminating ntau txheej ntawm silicon steel los xij, thiab cov xim insulating yog siv los ntawm cov nplooj ntawv los thaiv txoj kev "eddy tam sim no" generated thaum cov hlau nplaum flux dhau los ntawm cov ntawv hlau, yog li txo "eddy tam sim no poob", uas yog lub hauv paus ntsiab lus ntawm transformers. Ob leeg 800kva transformer thiabroj filling tshuab transformersua raws li cov qauv tsim qauv hauv lawv cov qauv hlau. Yog hais tias cov tub ntxhais hlau yog grounded ntawm ob lossis ntau lub ntsiab lus xws li point A thiab point B tib lub sijhawm, lub voj kaw kaw yuav raug tsim los ntawm cov tub ntxhais hlau, cov xaim hauv av thiab qhov chaw hauv av.
2. Kev siv tam sim no thiab kub dhau
Ib feem ntawm lub ntsiab sib nqus flux ntawm lub transformer yuav dhau los ntawm lub voj kaw no. Raws li Faraday txoj cai ntawm electromagnetic induction, alternating magnetic flux yuav induce ib tug electromotive quab yuam nyob rau hauv lub voj, yog li tsim ib tug tseem ceeb circulating tam sim no. Thaum no circulating tam sim no ntws los ntawm cov ntsiab lus ntawm cov hlau core laminations nrog siab tsis kam, nws yuav ua rau kom muaj cua sov ntau, uas ua rau hnyav overheating ntawm cov tub ntxhais hlau. Qhov xwm txheej no tshwj xeeb tshaj yog nyob rau hauv cov roj ntim cov khoom siv hluav taws xob thiab 800kva transformer, vim hais tias cov hlau tseem ceeb ntim thiab cov khoom siv thauj khoom yuav ua rau cov cua sov sib xyaw ua ke los ntawm kev siv tam sim no sai dua.
3. Qhov tshwm sim ntawm Multi-Point Grounding Faults
1) Qhov kub thiab txias hauv cheeb tsam: qhov kub ntawm qhov kub kub tuaj yeem ncav cuag ntau pua lossis ntau txhiab degrees Celsius, uas yog txaus los hlawv cov rwb thaiv tsev nyob ze thiab ua kom cov roj hloov pauv, uas muaj feem cuam tshuam ncaj qha rau cov roj ntim cov khoom siv hluav taws xob ntau dua . 2}) Cov yam ntxwv ntawm cov roj hluav taws xob: Kub kub yuav decompose cov roj, ua rau cov roj ntau yam xws li CH ₄ene thiab methane. (C₂H₄). Cov pa roj no tuaj yeem kuaj pom los ntawm kev txheeb xyuas cov pa yaj (DGA), uas yog lub hauv paus tseem ceeb rau kev kuaj xyuas cov tub ntxhais hlau ntau- taw tes hauv av faults thiab ib txoj hauv kev siv los ntawm JINSHANMEN TECHNOLOGY CO., LTD hauv kev tshuaj xyuas cov cuab yeej. 3) Kev puas tsuaj loj: Yog tias tsis ua raws sijhawm, - cov khoom siv hluav taws xob loj hauv zos yuav tsim kho rau hauv cov cua sov hauv zos . cov pa roj carbon ntau tshaj qhov kub thiab txias. nws thiaj li ua rau muaj kev puas tsuaj loj xws li winding luv circuits thiab transformer burnout. Cov kev ua txhaum no yuav ua rau muaj kev lag luam loj loj thiab hluav taws xob hluav taws xob, txawm tias nws yog 800kva transformer lossis roj puv tis transformers.
III. Cov ntsiab lus
1. Yog vim li cas grounding? Txhawm rau tiv thaiv cov tub ntxhais hlau los ntawm kev tsim cov peev txheej ntab thiab hauv av tawm, tiv thaiv cov rwb thaiv tsev, thiab xyuas kom muaj kev nyab xeeb ntawm cov khoom siv. Qhov no yog ib qho tseem ceeb uas yuav tsum tau 800kva transformer, roj puv transformers thiab tag nrho cov transformers yuav tsum tau ua raws li, thiab cov khoom zoo hauv qab kab adhered los ntawm JINShanMEN TECHNOLOGY CO., LTD. 2. Vim li cas tsuas yog ib qho taw tes grounding? Txhawm rau kom tsis txhob tsim lub voj kaw, tiv thaiv cov khoom siv hluav taws xob los ntawm kev ua kom lub hauv paus kub ntawm cov tub ntxhais hlau, hlawv cov khoom siv, thiab xyuas kom lub sijhawm ntev - lub sijhawm ua haujlwm ruaj khov ntawm lub tshuab hloov pauv.
Koj tuaj yeem nkag siab nws zoo li qhov no: Tsis muaj av: Nws zoo li taug kev ntawm cov ntaub pua plag qhuav nrog cov roj hmab soles. Lub cev yuav raug them, thiab kov lub qhov rooj yuav ua rau "pop" tawm. Yog hais tias lub transformer hlau tub ntxhais tsis yog grounded, qhov no "me me spark" yuav tshwm sim tsis tu ncua, ua rau tsis tu ncua rau lub rwb thaiv tsev system ntawm cov roj puv tis transformers thiab 800kva transformer. Multi- taw tes hauv av: Nws zoo li muab lub nplhaib tooj liab rau hauv qhov hloov pauv sib nqus, thiab lub nplhaib tooj liab yuav kub sai sai thiab txawm yaj. Multi- taw tes hauv av ntawm cov tub ntxhais hlau yog sib npaug rau kev tsim "lub nplhaib cua sov" ntawm nws tus kheej, uas thaum kawg ua rau cov khoom tsis ua haujlwm.
Yog li ntawd, "txhim kho av ntawm ib qho chaw" yog tib qhov tseeb thiab yuav tsum tau ua raws li txoj cai nruj me ntsis rau transformer hlau core grounding. Rau kev hloov pauv hauv kev ua haujlwm, lub xeev hauv av (txawm hais tias txuas nrog) ntawm cov tub ntxhais hlau yog qhov taw qhia tseem ceeb uas xav tau kev saib xyuas tsis tu ncua. Raws li tus kws tshaj lij transformer chaw tsim khoom,JINSHANMEN TECHNOLOGY CO., LTDnruj me ntsis siv cov hlau core grounding txheej txheem raws li thoob ntiaj teb cov qauv thaum tsim 800kva transformer, roj puv tis transformers thiab ntau lwm yam kis tau tus mob thiab tis khoom. Nyob rau tib lub sijhawm, nws muab cov neeg siv nrog cov cuab yeej ua haujlwm tshaj lij thiab kev saib xyuas cov lus qhia los pab cov neeg siv kom tsis txhob muaj kev pheej hmoo hauv av thiab ua kom muaj kev nyab xeeb thiab ruaj khov ntawm lub zog hluav taws xob.