Jiangshan Scotech Hluav Taws Xob Co., Ltd.
Ib tug txheej txheem cej luam ntawm earprate transformer
Oct 13, 2025
Tso lus
Lub ntsej muag sib hloov, tseem hu ua lub hauv paus hloov hluav taws xob, yog hom kev hloov pauv siv hauv peb {}}}} theem hluav taws xob fais fab. Nws yog feem ntau ua haujlwm hauv cov khoom siv hluav taws xob tsis muaj qhov chaw nruab nrab ntawm kev sib txuas tsis ncaj qha rau kev ua haujlwm ncaj qha los yog ntawm kev tawm tsam xws li lossis tawm tsam, lossis tam sim no}} kev txwv reactor. Thaum lub sijhawm line - rau -}}}} Txoj Kev Ua Yuam Kev Ua Ntej rau cov haujlwm ua kom muaj kev tiv thaiv zoo ntawm kev tiv thaiv hauv av; Ntxiv mus, nws ib txwm nqa luv- Circuit Court hauv av tam sim no kom txog thaum cov breaker Circuit Court clears, yog li muaj luv {{sij hawm ntsuas. Kev ntaus nqi KVA ntawm lub pob ntseg pob ntseg nyob ntawm cov kab ib txwm {{}} nruab nrog cov nqi tam sim no, xws li vib nas this. Ib qho ntxiv, nws tuaj yeem txais cov thib ob (qis {{{{{{} {17} {{}- Tsis muaj kev sib txuas rau txoj kev rov qab los rau qhov chaw nruab nrab; Thaum ib leeg -} theem theem ua txhaum, nws txwv qhov kev txhaum tam sim no hauv nruab nrab txhawm rau txhim kho cov kab hluav taws xob kev rov qab kho hluav taws xob.
I. Hom av hloov chaw
1. Yₙ, D -} Txuas nrog av hloov av
Nws yog ib peb {-} theem hloov pauv nrog aWye -} Txuas (Yₙ, nrog kev ua haujlwm nruab nrab)thawj winding thiab aDelta -} Txuas (D)Thib ob winding.
Delta -} txuas theem nrab sib txuas tau nqa tawm tam sim no kom sib npaug tam sim no nyob rau hauv thawj winding.
Delta theem nrab Window kuj tseem tuaj yeem txuas nrog raws li ib tugQhib Delta; Los ntawm kev ntxig resors lossis reactors ntawm qhov qhib xaus, lub xoom -}} ntu} ntu kev cuam tshuam ntawm cov av hloov pauv tuaj yeem hloov kho.
Ntxiv mus, cov terminals ntawm theem nrab uas muaj peev xwm ua tau los ua ib lub hwj chim pab rau cov khoom siv.
2. Zₙ {{{- Connined (Zig- kev sib txuas) hauv av transformer)
Nws yog ib tug peb -} theem hloov pauv nrogZig - zag -}} transming windings.
Due to the inherent connection mode of zig-zag windings, fault currents can be mutually balanced between two series-connected windings.
Qhov qis - voltage winding tuaj yeem ntxiv rau tus hloov pauv no ua rau lub zog ua haujlwm rau cov khoom.
Cov ntawv sau ntxiv ntawm kev ua haujlwm thiab qauv
- Lub tsev: Cov Khoom Siv Hluav Taws Xob Cov Qauv Zoo Zoo Li Qub Zoo Li Cas Rau Qhov Zoo Nkauj Peb {{}}}} Hom hluav taws xob hloov hluav taws xob.
- Kev ua haujlwm ib txwm muaj: Tsuas muaj kev zam tam sim no ntws los ntawm thawj sab ntawm cov av hloov chaw; Sab thib ob sab (yog tias tam sim no) tsis muaj tam sim no.
- Ib Leeg -} pars av txhaum: Ob lub Delta -}} {{{1} {{1}- Circuit Cot. Los ntawm kev xaiv zoo tam sim no {{}} kev txwv tsis txhob ua z, lub}}} pegase luv {}}} pa taws kom tsis tshaj lub sijhawm sib tw tam sim no ntawm lub tshuab hloov hluav taws xob tseem ceeb. Cov txheej txheem ntev ntawm cov luv luv- Circuit Court tam sim no yog 10 vib nas this.
Ii. Tus ua hauj lwm ua haujlwm ntawm earrgeule transformer
Nyob rau hauv kev ua haujlwm ib txwm, lub tshav pob cua ntawm lub pob ntseg sib txuas txuas rau theem ua lub zog hluav taws xob, thaum nws cov cua sib txawv thib ob yog av. Lub sijhawm no, cov hloov pauv ua haujlwm zoo li cov hloov pauv hluav taws xob, cov kauj ruam voltage nce lossis nqis raws li cov cai.
Rau kev lim dej ua txhaum los sis cov impedance ntawm earvening transformer, nrog rau ib qho ntxiv ntawm cov chaw tiv thaiv ntxiv lossis cov tshuaj txwv, txwv tsis pub ua txhaum los ntawm cov kab ke. Los ntawm kev tswj hwm cov txhaum no ua kom muaj cov hloov pauv hloov ua kom muaj kev ruaj khov thiab tiv thaiv cov khoom rhiab los ntawm kev puas tsuaj.
Thaum ua txhaum (xws li kab - {}}}} Av tsis zoo los ntawm cov pob ntseg hauv av. Qhov no tsim qhov tsawg - txoj kev tsis sib xws rau kev txhaum kom tsis txhob muaj kev phom sij thiab txo qhov kev pheej hmoo ntawm cov khoom phom.
Hais txog kev nyab xeeb thiab kev tiv thaiv, lub pob ntseg ua kom muaj kev nyab xeeb ntawm cov neeg ua haujlwm los ntawm kev muab txoj hauv kev zoo rau hauv av. Nws pab tiv thaiv hluav taws xob shocks, hluav taws kub, thiab lwm yam phom sij cuam tshuam nrog kev txhaum ib puag ncig thiab txhim kho kev ntseeg tau.
III. Txoj haujlwm ntawm earpring transformer
EarpriTrure Transformer yog cov khoom siv hluav taws xob tshwj xeeb tsim los daws cov ntsiab lus nruab nrab hauv cov kev teeb tsa fais fab fais fab thiab xyuas kom txoj haujlwm kev nyab xeeb ntawm cov kab ke thaum av ua txhaum. Nws cov haujlwm tseem ceeb thiab cov yam ntxwv ua haujlwm tau yog qee qhov tshwm sim hauv cov hauv qab no:
1. Muab ib qho chaw nruab nrab cuav rau cov khoom tseem ceeb
Nyob rau hauv me me-} Tam sim no lub tshuab hluav taws xob tam sim no, ARC Supression Coil yog qhov tseem ceeb rau kev ua haujlwm tam sim no thaum {1} {1} {}}}}}}}}} {}}} {}}}}}}} {}} paim av txhaum. Txawm li cas los xij, Delta -} Connected sab (ib qho kev hloov pauv hluav taws xob (11kv, thiab 33kV pob hluav taws xob ntawm lub arc supression coil ncaj qha.
Lub pob ntseg ua zauv daws cov teeb meem no los ntawm kev tsim ib qhoCov khoom siv tsis raug caiCov. Qhov nruab nrab no tsuas yog ua rau kev sib txuas tau zoo ntawm Ailress Coil tab sis kuj muab cov ntsiab lus sib txuas rau lub hauv paus tiv thaiv. Thaum lub zog hluav taws xob tau txais cov chaw ua haujlwm nruab nrab uas tsis muaj kev sib koom tes ua ke los ntawm kev sib koom ua ke
2. Kev phom sij ntawm thaj chaw nruab nrab thiab ua kom muaj kev tiv thaiv kev tiv thaiv
Nyob rau hauv unundle nruab nrab tshuab, txawm hais tias cov kab voltage tseem symmetrical thaum ib qho kev cuam tshuam me me ntawm cov neeg siv khoom siv) Nrog kev nthuav dav ntawm lub zog kev lag luam thiab nce hauv nroog loj loj, cov av muaj peev xwm txuas tau tam sim no feem ntau tshaj 10A, ua rau peb txoj kev pheej hmoo:
Kev sib quas ntus extinction thiab reignition of grounding arc, tsim tawm arc grounding overvoltage (txog li 4U, nyob qhov twg yog cov khoom siv ncov ntawm cov khoom siv hluav taws xob;
Nruam arcs ua rau huab cua cais, uas yooj yim ua rau theem {{0} {1} {qeb luv luv;
Ferromagnete resonance overvoltage, uas yuav hlawv voltage hloov lossis ua rau cov ntawv tawg.
Los ntawm kev sib txuas ib lub hauv paus tiv thaiv mus rau cov khoom siv nruab nrab ntawm cov khoom nruab nrab, lub ntsej muag muab cov zaub mov tam sim no thiab xoom}} kab voltage rau cov kab ke. Qhov no tso cai rau kev nkag siab heev xoom- ntu kev tiv thaiv hauv lub sijhawm sib xyaw thiab kev tiv thaiv kev nyab xeeb ntawm cov kab ke ntawm lub hwj chim.
3. Ua pov thawj tshwj xeeb electromagnetic yam ntxwv hloov kho kom haum rau cov neeg txhaum
Lub pob ntseg tau txais cov yam ntxwv tshwj xeeb rau ntau hom dej hiav txwv, uas yog tus yuam sij rau nws ua haujlwm ruaj khov:
Siab yuam kom mus rau qhov zoo thiab tsis zoo ua ntu zus: Raws li kev ua haujlwm ib txwm muaj, tsuas yog muaj kev zam me me uas ntws los ntawm earthing transformer lub windings. Nyob rau lub sijhawm no, tus hloov pauv yog nyob rau hauv lub xeev tsis muaj peev xwm (ntau pob ntseg hluav taws xob txawm tias tsis muaj qhov teeb meem thib ob, txuas ntxiv rau lawv cov qauv rau cov xwm txheej unload signario ntxiv).
Qis impedance rau xoom - ntu ntu kev ntxhoo: Lub pob ntseg pob hluav taws xob feem ntau tau txais z - hom (zigzag) xaim, qhov chaw ntawm txhua lub tub ntxhais hlau. Thaum xoom -} ntu tam sim no yog tsim vim yog ib qho av tsis haum, ob lub kaus mom ntawm tib lub ntsej muag sib txuas tau txuas nrog hauv qab polarity hauv koob. Lawv lub zog hluav taws xob hnyav yog sib npaug thiab rov qab ua ke ntawm qhov kawg {}}, me dua li 10ω, tsawg dua li ntawm cov hloov pauv ntawm cov hloov pauv). Qhov kev tshem tawm tsawg uas ua kom muaj xoom - ntu tam sim no tuaj yeem ntws ncaj qha los ntawm nruab nrab ntawm qhov chaw nyob ruaj khov los ntawm kev hloov pauv hloov pauv, tsim cov kev tiv thaiv kev tiv thaiv txhaum.
Qhov kev xav tsis ncaj tus cwj pwm kuj tau txiav txim siab ua pob ntseg hloov pauv hom kev ua haujlwm:ntev - lub sij hawm unloaded ua haujlwm thiab luv-} lub sij hawm overload lag luamCov. Nws tsuas yog ua haujlwm thaum lub sij hawm tshwm sim ntawm qhov tshwm sim ntawm av txhaum rau lub sij hawm lub xoom-} Kev tiv thaiv kab txiav, thiab qhov txhaum tam sim no dhau los ntawm nws tsuas yog luv luv.
4. Txhim kho kev ua tau zoo thiab txo tus nqi peev
Piv nrog rau cov hloov pauv zoo ib yam, lub pob ntseg tau pom tseeb tias muaj arc supression coilste, lub peev xwm ntawm ARC Supression Coil tsis tau tshaj 20% ntawm transformer lub peev xwm; Thaum h - Hom Pauv Hloov tuaj yeem phim ARC Supression Coils nrog 90% ~ 100% ntawm lawv tus kheej lub peev xwm ntawm kev ua haujlwm ntawm kev ua haujlwm tam sim no.
Tsis tas li ntawd, qee lub pob ntseg pob ntseg tuaj yeem txuas nrog cov nra hnyav thaum paub kev tiv thaiv kev tiv thaiv hauv av. Qhov no txhais tau tias lawv tuaj yeem hloov pauv hloov pauv zoo tib yam hauv cov xwm txheej tshwj xeeb, kev sib xyaw ua ke rau hauv ib lub cuab yeej thiab txo qis kev nqis peev tag nrho cov nqi ntawm cov phiaj xwm fais fab.
Hauv cov ntsiab lus, lub pob ntseg pob ntseg tsis yog tsuas yog "nruab nrab ntawm cov ntsiab lus tsis muaj kev cuam tshuam nrog cov kev tiv thaiv thiab ua kom cov kev tiv thaiv kev tiv thaiv tam sim no. Nws cov qauv tshwj xeeb thiab cov hom kev ua haujlwm ua rau nws muaj cov khoom siv tseem ceeb hauv cov khoom siv tseem ceeb, tshwj xeeb tshaj yog nyob hauv nroog fais fab loj nrog cov hluav taws xob loj.
IV. Daim ntawv thov ntawm Earprate Transformer
Tus tub ntxhais muaj nuj nqi ntawm lub earthing transformer yog los muab anruab nrab grounding taw tesrau unguts lossis qis -} tam sim no av muaj zog. Nws yog tsuas yog siv nyob rau hauv cov xwm txheej uas yuav tsum tau ua tiav kev tiv thaiv ua txhaum thiab voltage stability, npog teb cov tes hauj lwm, tshuab hluav taws xob, cov zog tshiab, thiab lwm yam.
1. Nruab Nrab thiab Tsawg -} voltage Rependibing network
Qhov no yog qhov tseem ceeb tshaj plaws ua haujlwm ntawm earthing transformers, tshwj xeeb yog tsim nyog rau nruab nrab {{voltage muab faib tawm xws li 10KV thiab 20kV.
- Feem ntau cov nruab nrab - voltage rependibute networks "lossis" nruab nrab ntawm av.
- Earthing transformers muab ib lub davhlau ya nyob nruab nrab ntawm lub hnub qub (y) txuas, uas yog tom qab ntawd txuas rau hauv av nrog lub ntsej muag resistor lossis arc supression coil kom ua tiavIb Leeg -} Phase Av Txhaum Cai tuav.
- Muaj nuj nqi: thaum ib qho - pegase av txhaum tshwm sim hauv kab, nws tuaj yeem txiav txim siab cov khoom siv los ntawm kev tiv thaiv kev tiv thaiv sai heev nrhiav qhov txhaum cai.
2. Kev lag luam siab siab - voltage khoom siv tshuab
Siab - voltage motors, transformers, thiab lwm yam khoom lag luam feem ntau yuav tsum tau earthing transformers kom ntseeg tau kev nyab xeeb.
- Hauv kev siv tshuab, siab - voltage motors (6KV, Rectifier khoom siv vim yog rwb thaiv tsev sib tsoo.
- Earthing transformers muab lub nruab nrab grounding taw tes rau lub zog hluav taws xob ntawm cov cuab yeej siv no, thiab koom tes nrog cov khoom siv hauv av tiv thaivKev txhaum tam sim no nrhiav kom tau thiab nrawm tripping.
- Cov xwm txheej raug: Muaj siab {- pa hluav taws xob muab cov tshuab hauv petrochemical, thiab mining kev lag luam, uas xav tau los xyuas ntau lawm thiab tiv thaiv ua txhaum kev nthuav dav.
3. Tshiab Zog Zog Hluav Taws Xob Lub Tshuab
Earthing transformers yog cov cuab yeej txhawb nqa hauv cov khoom lag luam thiab cov kab sau cov hluav taws xob cov hluav taws xob thiab cua ua liaj ua teb.
- Inverters thiab box {{-}}} hom transformers nyob rau hauv cov kev cuam tshuam tshiab "tsim los kom txo qhov kev ua txhaum hauv av ntawm lub zog hluav taws xob.
- Earthing transformers muab nruab nrab av cov ntsiab lus rau 110kV tshuab hauv cov khoom txhaum cai, thiab kev sib koom tes tiv thaiv kev ua txhaum xws li Inverters thiab Transformers.
- Muaj nuj nqi: tiv thaiv lub kaw ntawm tag nrho cov kev kaw lus muaj zog los ntawm tib - pay ground ph ground ground ground ground ground ground ground ground ground ground ground supply relblity ntawm lub zog tshiab.
4. Tshwj xeeb -}}} Lub Nruab Nrab Hluav Taws Xob Fais Fab
Qee qhov xwm txheej tshwj xeeb nrog kev nyab xeeb txog kev nyab xeeb kuj yuav tsum tau pob ntseg hloov kom ua tiav kev tiv thaiv kev tiv thaiv zoo.
- RAILway Trection Fais Fab: Hauv kev pab cuam tshuam ntawm kev siab siab - Kev tsheb ciav hlau ceev thiab subways, tus 27.5kv traction network-} roj fais fab mov. Earthing transformers xav tau los sib npaug voltage thiab suppress xoom - ntu ntu tam sim no.
- Offshore cua fais fab / Roj Platforms: Rwb thaiv cov khoom siv hauv cov av marine ib puag ncig yog nquag rau corrosion. Earthing transformers, ua ke nrog corrosion - Cov khoom lag luam tsis txaus ntseeg, ua kom tiv thaiv cov cuab yeej kev puas tsuaj lossis khoom siv hluav taws xob lossis tus kheej hluav taws xob.
V. Qhov tseem ceeb rau kev xaiv lub pob ntseg pob ntseg
1. Cov Txheej Txheem Hluav Taws Xob thiab Hom Av
Phim cov hloov pauv cov ntsuas hluav taws xob rau daim phiaj (6kv / 11kv / 33kv) rau rwb thaiv tsev sib xyaw. Xaiv raws li hom av: ARC supression Coil tshuab xav tau cov qauv txhawb siab txhawb siab; Tsis muaj me me- tsis kam ua si yuav tsum tau xoom - ntu} ntu} ntu kev cuam tshuam rau kev tiv thaiv kev tiv thaiv.
2. Cov qauv tsim thiab xoom -} ntu ntu kev cuam tshuam
Ua ntej z - hom (zigzag) windings, uas muab ultra-}}}} {%-siv nyiaj ntawm arc supression Coil lub peev xwm. Xyuas kom meej impedance li lub kaw lus txhaum kev cai lij choj tseev kom tau los pab txhawb kev ua haujlwm zoo {}} ntu tam sim no kis.
3. Kev ua lag luam muaj peev xwm thiab muaj peev xwm sizing
Calculate the grid's total grounding capacitive current (critical for systems >10a). Qhov loj me tus hloov pauv mus kho ib qho kev ua tiav ntawm ARC Supression Coil cov kev txhaum tam sim no los ntawm kev ua lag luam tawm tsam tam sim no los ntawm kev tiv thaiv thaum lub sij hawm ua txhaum.
4. Kev ua haujlwm thiab wwjener muaj peev xwm
Haum rau nws "ntev - Term tsis {}}}}} log tsis muaj zog rau kev siv hluav taws xob thaum lub sijhawm ua haujlwm ib txwm muaj.
5. Ib puag ncig thiab kev teeb tsa yuav tsum tau ua
Rau cov chaw hnyav (hmoov av, av noo, xaiv cov qauv nrog cov qib kev tiv thaiv tsim nyog (piv txwv li IP54) thiab kev tiv thaiv kev xeb. Nyob rau hauv qhov chaw -} txwv thaj chaw (nroog chaw, sab hauv tsev), xaiv rau kev tsim qauv.
6. Cov qauv ua raws cai thiab ntawv pov thawj
Xyuas kom meej tus neeg thoob ntiaj teb (IEC 60076) lossis lub teb chaws (piv txwv li GB / T 6451) cov qauv. Xyuas cov ntawv pov thawj siv tau (CE, CCC) kom lav qhov kev nyab xeeb, sib xws, thiab kev ntseeg tau hauv kev ua haujlwm.
VI. Drawbacks ntawm transformer nruab nrab sumround chaw ua haujlwm
Transformer nruab nrab cov chaw ua haujlwm tsis muaj cov haujlwm muaj cov hauv qab no tsib yam tsis zoo:
- Kev thaiv cov siab yuav tsum tau thiab nqi: Thaum ib qho -} pegase av tsis tshwm sim, qhov hluav taws xob ntawm qhov tsis {1} {1} {1}- Raws li qhov tshwm sim, cov cuab yeej siv hluav taws xob hauv lub zog hluav taws xob yuav tsum muaj cov nyiaj rov qab muaj dua li cov nqi tsim khoom thiab cov nqi tom ntej ntawm cov khoom siv.
- Txaus ntshai ntawm arc prounding overvoltage: Yog hais tias ib as -}} paim theem hauv av tam sim no yog me me, lub arc yuav tua thaum lub sij hawm tam sim no los ntawm xoom, thiab qhov txhaum yuav ploj mus. Txawm li cas los xij, thaum cov tam sim no tshaj li 30 amperes, ib qho chaw ruaj khov yuav tsim tawm, tsim cov hauv av txuas ntxiv. Qhov no tsis tsuas yog kev puas tsuaj cov khoom tab sis kuj tseem yuav ua rau muaj ob -} {{5} {}} theem luv luv.
- Nyuaj rau kev xaiv cov av ntawm kev tiv thaiv hluav taws xob: Nws yog ib qho nyuaj rau kev paub rhiab thiab xaiv tau. Tshwj xeeb tshaj yog rau cov fais fab nyiaj nrog arc supression coilression, uas yooj yim cuam tshuam rau cov sijhawm kom paub thiab cais tawm ntawm kev ua txhaum.
- Disconnection yuav ua rau resonance overvoltage: Kev nqis tes xws li cov xaim hluav taws xob, hloov chaw haujlwm ntawm cov chaw sib txawv ntawm cov sijhawm sib txawv, thiab cov fuse fusing ntawm cov sijhawm sib txawv tuaj yeem ua rau muaj kev tiv thaiv ntau yam. Cov teeb meem no yuav ua rau muaj kev tawg roj teeb, rov qab theem ua ntu zus ntawm cov khoom siv hluav taws xob ntawm cov khoom siv hluav taws xob.
- Resonance overvoltage ntawm electromagnetic transformer: Vim tias cov asymmetry ntawm cov kab ke hluav taws xob, nruab nrab ntawm kev tawm tsam ntau dua rau cov hluav taws xob siab dua ntawm cov hluav taws xob hluav taws xob hloov. Thaum muaj mob hnyav, nws tuaj yeem hlawv cov transformer nws tus kheej.
VII. Qhov zoo ntawm transformer nruab nrab separ
- Cov Hluav Taws Xob Cov Hluav Taws Xob Muaj Zog: Hloov me ntsis hauv peb {{}}}}}}}}} {1} {} {}} payase av yuam kev; Tsis muaj kev sib tw kiag li, nrog kev ua txhaum meej meej hauv ~ 2 teev, ua kom muaj zog txuas ntxiv.
- Kev cuam tshuam ntsig qis rau kev sib txuas lus / teeb liab: Tsis muaj zog hauv hluav taws xob cuam tshuam nrog kev cuam tshuam nrog peb {{}} pass ua haujlwm; me me hauv av tam sim no ua rau muaj kev cuam tshuam tsawg tsawg; arcs tus kheej - extinguish hauv cov tshuab me (piv txwv li, nyob deb nroog sob).
- Facilitates Txhaum Txhaum Nrhiav tau & Qhov chaw me me hauv av tam sim no pab cov khoom tiv thaiv kev tiv thaiv thiab nrhiav qhov ua yuam kev.
- Txo qhov kev thov rau tam sim no - txwv cov khoom siv tam sim no tshem tawm cov khoom loj tam sim no}}} kev siv khoom, txiav cov nqi thiab yooj yim tsim qauv.
- Zoo dua cov kev tswj hwm zoo tshaj plaws hauv cov xwm txheej tshwj xeeb: yooj yim rau kev tswj voltage fluctuab thaum ub / cov txheej txheem hloov pauv kev pheej hmoo.
- Enhances transient system stability: Easier to maintain three-phase voltage balance during transients, reducing impacts on key equipment and avoiding cascading issues.
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