HV/MV Switchgear & Transformer Professional FAQ|Ntiaj teb no Universal Version
Rau kev sib xyaw fais fab kev daws teeb meem uas muaj cov cuab yeej tshwj xeeb xws li lub nplhaib tseem ceeb (RMUs), sab hauv layout optimization ncaj qha txhim kho load hloov kev ua tau zoo, kev ua hauj lwm efficiency thiab ntev - lub sij hawm system cia siab rau. LVMA Hluav taws xob ua kom zoo tshaj plaws hauv kev sib koom ua ke rau txhua lub nplhaib network thiab cov khoom siv hluav taws xob kom ntseeg tau tias kev ua haujlwm ruaj khov, kev saib xyuas yooj yim thiab cov qauv kev nyab xeeb siab.
1. Dab tsi yog lub zog hluav taws xob voltage theem thiab lawv cov haujlwm tseem ceeb?
Teb:Cov qauv hluav taws xob thoob ntiaj teb hluav taws xob muaj xws li 500kV, 220kV, 110kV, 35kV, 10kV, 380V thiab 220V. Voltage theem ncaj qha txiav txim siab kis tau tus mob thiab kis tau tus mob nrug. Cov qib hluav taws xob siab dua ua tau zoo txo cov kab hluav taws xob poob, uas yog vim li cas ntev - lub zog xa hluav taws xob ib txwm siv cov qib siab siab -voltage. Cov khoom siv hluav taws xob nruab nrab uas npog 10kV thiab 35kV yog cov kev daws teeb meem tshaj plaws rau hauv nroog thiab kev lag luam kev lag luam. LVMA Electrical lub nruab nrab voltage switchgear yog kws txawj engineered rau cov mainstream voltage theem, featuring zoo heev rwb thaiv tsev kev ua tau zoo, ruaj khov dielectric zog thiab nruam kev ntseeg siab rau lub ntiaj teb no faib tej yaam num.
2. Vim li cas 10kV cov cuab yeej tso tawm tsim nyog, thiab cov txheej txheem pov tseg zoo li cas?
Teb: Tom qab kaw lub hwj chim, cov khoom siv hluav taws xob sab hauv hauv lub tshuab hluav taws xob feem ntau khaws cov nqi seem, uas yuav ua rau muaj kev phom sij hluav taws xob thaum kho. Yog li ntawd, qhov yuav tsum tau muaj hluav taws xob tawm hluav taws xob yuav tsum tau ua ua ntej kev tuav haujlwm.
Cov txheej txheem kev nyab xeeb tus qauv: Tom qab qhib lub qhov rooj txee, tsis txhob kov cov busbar lossis cov khoom nyob. Ua ntej, txheeb xyuas xoom qhov hluav taws xob siv tus tsim nyog 10kV voltage tester. Tom qab ntawd hauv av ib kawg ntawm ib qho kev cog lus hauv av thiab nrees hu rau lub busbar nrog lub tester sojntsuam kom tag nrho tso tawm qhov seem seem. Kev tu vaj tse tuaj yeem ua tiav tom qab tso tawm tiav. LVMA Hluav taws xob sib koom ua ke cov txheej txheem kev ruaj ntseg cuam tshuam rau hauv txhua qhov hloov pauv thiab lub nplhaib tseem ceeb kom txo qis kev pheej hmoo ntawm kev sib cuag thaum lub sijhawm ua haujlwm ntawm -.
3. Dab tsi yog qhov 10kV ntsuas hluav taws xob cov qauv rau cov qauv hauv tsev thiab thoob ntiaj teb?
Teb: Tus qauv fais fab zaus tiv taus qhov voltage sib txawv me ntsis thoob ntiaj teb specifications. Cov qauv txheem yog raws li nram no:
Cov qauv hauv cheeb tsam: txee tiv taus voltage: 42kV; Circuit Court breaker tiv taus voltage: 48kV
International IEC txuj: 36kV
Tag nrho cov khoom siv hluav taws xob hloov hluav taws xob LVMA ua raws li cov qauv hauv cheeb tsam thiab thoob ntiaj teb, ua kom muaj kev sib raug zoo thiab kev nyab xeeb rau kev xa tawm thoob ntiaj teb.
4. Lub luag haujlwm ntawm lub siab nyem channel yog dab tsi?
Teb: Sab hauv luv luv- Circuit Court faults los yog arcing nyob rau hauv ib puag ncig switchgear tuaj yeem tsim instantaneous siab -kub cua siab nthwv dej. Nruab sab saum toj siab nyem raws kev nyab xeeb tso tawm overpressure tawm sab nraud, tiv thaiv cov khoom siv sab hauv thiab tiv thaiv kev puas tsuaj rau lub txee. Yog tias tsis muaj kev tsim kho kev tsim kho siab, lub siab tsis muaj zog yuav tawg los ntawm cov ntsiab lus tsis muaj zog thiab ua rau cov khoom puas tsuaj loj lossis kev nyab xeeb. Qhov kev tsim no yog qhov tseem ceeb tshwj xeeb rau kev kaw tag nrho GIS (Gas Insulated Switchgear) siv SF6 rwb thaiv tsev. LVMA Hluav Taws Xob ua kom zoo dua cov txheej txheem siab nyem rau GIS thiab RMU cov khoom kom ntseeg tau tias huab hwm coj-kev nyab xeeb kev ua haujlwm hauv kev lag luam thiab hauv nroog.
5. Cov khoom tseem ceeb twg raug ntsia rau hauv tus qauv switchgear?
Teb: Cov ntsiab lus tseem ceeb muaj xws li lub tshuab nqus tsev vacuum breakers, xob laim ntes, xoom-ib ntu tam sim no transformers, tam sim no transformers (CT), voltage transformers (PT), thiab siab -voltage fuses. Cov Cheebtsam no yog universally saws nyob rau hauv nruab nrab voltage switchgear, nplhaib lub ntsiab units thiab GIS cov cuab yeej nrog scenario - raws li configuration kho. LVMA Electrical txais qib siab -qib, hom- cov khoom pov thawj thiab ua tiav - hom kev xeem kom lav tag nrho cov khoom ruaj khov thiab lub neej ntev.
6. Lub luag haujlwm ntawm lub nplhaib tseem ceeb yog dab tsi, thiab lawv tiv thaiv transformers li cas?
Teb: Lub nplhaib network txee (RMU) feem ntau ua haujlwm ruaj ntseg kaw thiab tawg ua haujlwm rau lub nplhaib fais fab sib txuas. Kev tiv thaiv kev hloov pauv yog pom tau los ntawm kev sib tw siab -voltage fuses, uas cais cov kev ua txhaum tam sim ntawd nyob rau hauv dhau thiab luv luv - cov xwm txheej hauv Circuit Court. Featuring compact qauv, me me hneev taw thiab muaj kev ntseeg siab, RMUs tau dav siv nyob rau hauv lub nroog faib network, chaw lag luam thiab chaw ua si. LVMA Hluav taws xob lub nplhaib tseem ceeb xa cov kev ua haujlwm ruaj khov hauv kev rov ua dua tshiab hauv nroog thiab kev lag luam fais fab kev lag luam thoob ntiaj teb.
7. Dab tsi yog tus qauv cua rwb thaiv tsev deb rau 10kV tshuab?
Teb: Rau 10kV nruab nrab voltage qhib- hom switchgear, tus qauv theem- mus rau -theem thiab theem- mus rau- av rwb thaiv tsev nyob deb yog 125 hli. Cov cuab yeej kaw GIS tau txais kev nruj nruj nrog cov txheej txheem rwb thaiv tsev los ntawm SF6 roj rwb thaiv tsev. LVMA Electrical nruj me ntsis raws li thoob ntiaj teb cov txheej txheem rwb thaiv tsev nyob deb thiab dhau thib peb- ntawv pov thawj rau txhua yam khoom.
8. Dab tsi yog qhov creepage nrug ntawm insulating Cheebtsam rau 10kV khoom?
Teb: Creepage nrug yog hais txog lub rwb thaiv tsev qhov deb ntawm qhov siab -voltage nyob qhov chaw mus rau hauv av. Rau 10kV voltage theem, tus qauv xav tau kev nkag mus deb yog 235mm, kom ntseeg tau tias cov rwb thaiv tsev zoo thiab tiv thaiv flashover nyob rau hauv qhov chaw ntub dej lossis muaj kuab paug.
9. Yuav ua li cas kom paub tseeb lub tshuab nqus tsev nruj ntawm lub tshuab nqus tsev hloov?
Teb: Lub tshuab nqus tsev nruj yog txheeb xyuas los ntawm lub zog zaus tiv thaiv qhov ntsuas hluav taws xob nrog 48kV tawg rwb thaiv tsev kuaj. LVMA Hluav Taws Xob siv 100% kev tshuaj xyuas tag nrho ntawm txhua lub tshuab nqus tsev hloov pauv kom tshem tawm qhov tsis zoo ntawm lub tshuab nqus tsev vacuum.
10. Muaj nuj nqi thiab daim ntawv thov scenarios ntawm disconnector keyboards
Teb: Disconnectors ua tsis muaj - thauj khoom cais los tsim cov ntsiab lus tawg pom hauv lub voj voog. Lawv xyuas kom muaj kev nyab xeeb hluav taws xob cais thiab pab tswj cov cuab yeej siv. Lawv tau dav ntsia nyob rau hauv nruab nrab voltage switchgear thiab lub nplhaib tseem ceeb units los txhim kho kev ua hauj lwm kev nyab xeeb thiab standardize cov txheej txheem txij nkawm.
11. Dab tsi yog qhov ua haujlwm ntawm siab -voltage fuses?
Teb: High-voltage fuses muab overcurrent thiab luv luv-circuit tiv thaiv rau tis transformers thiab voltage transformers (PT). PTs raug cais raws li me me - muaj peev xwm hloov pauv tshwj xeeb uas xav tau kev tiv thaiv fuse tshwj xeeb.
12. Dab tsi yog txoj haujlwm ntawm nyob - kab qhia?
Teb: Cov ntsuas ntsuas nyob pom pom qhov pom sab hauv siab -voltage xwm txheej ntawm switchgear, muab cov lus ceeb toom tiag tiag- lub sij hawm voltage los tiv thaiv kev ua haujlwm tsis raug thiab hluav taws xob raug xwm txheej.
13. Lub luag haujlwm ntawm kev kaw haujlwm yog dab tsi?
Teb: Qhov kev pab cuam cuam tshuam kev kaw haujlwm tswj cov txheej txheem kev khiav hauj lwm ib ntus rau kev hloov pauv. Lawv lub cev txwv tsis pub ua haujlwm tsis raug xws li kaw nrog hauv av lossis qhib nrog kev thauj khoom, kom ntseeg tau cov txheej txheem kev ua haujlwm nruj me ntsis.
14. Dab tsi yog lub luag haujlwm ntawm kev hloov hauv av?
Teb:Grounding keyboards yog ntsia rau ntawm cov khoom tawm tawm. Thaum lub sij hawm txij nkawm, txhim khu kev qha grounding tshem tawm induced voltage thiab residual voltage, tag nrho tiv thaiv cov neeg ua hauj lwm kev nyab xeeb.
15. Lub luag haujlwm ntawm kev ruaj ntseg baffle li qub yog dab tsi?
Teb: Thaum lub tub rau khoom - hom tivthaiv raug rub tawm, qhov tsis siv neeg baffle valve kaw los tiv thaiv sab hauv zoo li qub -voltage contacts, tiv thaiv kev sib cuag los ntawm cov neeg ua haujlwm lossis cov khoom hlau thiab zam kev luv luv - Circuit Court faults.
16. Vim li cas busbars qhwv nrog insulating roj hmab tes tsho?
Teb: Busbar roj hmab rwb thaiv tsev txhim kho tag nrho cov dielectric kev ua tau zoo, txo cov cua rwb thaiv tsev nyob deb, thiab tiv thaiv me me -tsiaj- ua rau luv luv. Nws zoo heev txhim kho kev nyab xeeb kev khiav hauj lwm rau sab nraum zoov thiab semi- sab nraum zoov switchgear. LVMA Hluav taws xob txais cov huab cua siab -cov ntaub ntawv insulating resistant kom ntev cov cuab yeej siv lub neej nyob rau hauv ib puag ncig hnyav.
17. Kev ua haujlwm thiab qhov tsim nyog ntawm kev ntes hluav taws xob hauv lub tshuab hluav taws xob
Teb: xob laim ntes nqus tam sim ntawd overvoltage thiab surge voltage los tiv thaiv switchgear, kab thiab cov khoom siv davhlau ya nyob twg. Cov qauv sib txawv yog tsim los rau cov hluav taws xob cog hluav taws xob, cov kab sib txuas, cov tsev txhab nyiaj capacitor thiab substation systems.
Txhua lub teeb hloov hluav taws xob tau nruab nrog cov khoom siv tiv thaiv xob laim: cov khoom siv hauv txee tuaj yeem cuam tshuam cov kab hluav taws xob sab nraud, thaum cov txee tawm sab nraud absorbs kev khiav hauj lwm overvoltage generated thaum lub tshuab nqus tsev vacuum switching, hloov cov tsoos overvoltage absorbers kom stabilize qhov system voltage.
18. Muaj nuj nqi ntawm tam sim no transformers (CT) thiab xoom-ib theem transformers
Teb: Tam sim no transformers (CT) yog siv rau tiag tiag - lub sij hawm tam sim no ntsuas, lub hwj chim metering thiab system tiv thaiv. Zero-ib ntu transformers tau mob siab rau siv los tiv thaiv kev sib tsoo thiab hauv av kom ntseeg tau tias kev nyab xeeb ntawm daim phiaj.
19. Cov CTs puas tuaj yeem ntsia rov qab?
Teb: CTs ua raws li tus qauv L1-hauv thiab L2-tawm tam sim no. Rov qab kev teeb tsa yog technically ua tau tab sis yuav tsum muaj kev hloov kho ntawm cov qauv tsim hluav taws xob thib ob kom paub meej qhov ntsuas thiab ntsuas kev tiv thaiv.
20. Muaj nuj nqi ntawm cov av noo tswj hauv switchgear
Teb: Intelligent humidity controllers saib xyuas cov av noo nyob hauv lub sijhawm. Thaum cov av noo tshaj qhov chaw nyab xeeb, tsis siv neeg cua sov thiab dehumidification yog qhib kom tiv thaiv condensation, rwb thaiv tsev degradation thiab ib nrab tawm. Qhov kev ua haujlwm no yog qhov tseem ceeb tshwj xeeb rau cov khoom siv GIS, vim SF6 rwb thaiv tsev kev ua tau zoo heev rau cov dej noo. LVMA Hluav Taws Xob equips tag nrho cov siab -kawg GIS switchgear nrog ntse ntse - tswj cov av noo.
21. Lub hom phiaj ntawm schematic daim duab
Teb: Schematic daim duab qhia meej qhia txog kev teeb tsa, lub ntsiab lub voj voog thiab cov logic hluav taws xob, kev coj ua cov txheej txheem kev teeb tsa, kev debugging thiab tu txhua hnub. LVMA Hluav Taws Xob muab cov ntaub ntawv ua tiav schematic rau txhua yam khoom.
22. Professional abbreviations txhais
PT= Muaj peev xwm Transformer (Voltage Transformer)
CT= Tam sim no Transformer
AC= Hloov tam sim no
DC= Direct Current
23. Kev ua haujlwm ntawm lub tshuab nqus tsev Circuit Court breakers
Teb: Lub tshuab nqus tsev Circuit Court breakers ua kom muaj kev nyab xeeb kaw thiab tawg, luv luv - Circuit Court tripping thiab overload tiv thaiv. Lawv siv lub tshuab nqus tsev cuam tshuam los tua hluav taws xob arcs, muaj kev nyab xeeb siab, tsis tshua muaj suab nrov thiab lub neej ua haujlwm ntev.
24. Kev faib tawm thiab cov yam ntxwv ntawm cov khoom siv hluav taws xob tseem ceeb
1. Nqus Circuit Court Breaker
Txais siab - lub tshuab nqus tsev vacuum li rwb thaiv tsev thiab arc - tua nruab nrab. Tag nrho cov kev sib cuag raug kaw tag nrho hauv lub tshuab nqus tsev cuam tshuam. Feem ntau yog siv rau 10kV thiab 35kV nruab nrab voltage tshuab nrog kev nyab xeeb thiab kev txij nkawm- pub dawb zoo.
2. SF6 Circuit Breaker & GIS
Nrov nrov thoob ntiaj teb txij li xyoo 1970s, SF6 breakers siv sulfur hexafluoride gas rau arc extinction thiab rwb thaiv tsev. Lawv lub peev xwm tawg yog kwv yees li 10 npaug siab dua li cov pa hluav taws xob, uas muaj qhov tsis tshua muaj hluav taws xob arc, nrawm nrawm thiab tsis tshua muaj kev sib cuag, tso cai rau kev hloov pauv ntau zaus. SF6 cov khoom siv hluav taws xob sib xyaw ua ke (GIS) suav nrog cov khoom tawg, cov khoom sib txuas, cov hloov pauv, cov neeg ntes thiab cov tsheb thauj mus los hauv cov roj ntim cov khoom sib khi-cov khoom ntim, txo qis cov chaw nres tsheb hneev taw. Nws tau dhau los ua cov kev daws teeb meem loj rau high-kawg thiab ultra- hluav taws xob hluav taws xob hluav taws xob thoob ntiaj teb. LVMA Hluav taws xob txuas ntxiv txhim kho SF6 cov cuab yeej siv los txhim kho kev ua haujlwm thiab kev ua haujlwm ib puag ncig.
3. Compressed Cua Circuit Court Breaker
Siv compressed cua rau arc extinction, feem ntau yog siv nyob rau hauv ultra- high voltage kis systems thoob ntiaj teb.
4. Tus kheej-Blast Circuit Breaker
Cia siab rau nruab nrab decomposition gas kom tshuab tawm arcs, haum rau qis-voltage, me -tam sim no kev ua liaj ua teb thiab pej xeem lub zog.
5. Sib nqus Blowout Circuit Breaker
Siv lub zog sib nqus los coj cov arcs rau hauv arc - tua kab sib txuas kom txias thiab ploj mus.
25. Cov hauv paus ntsiab lus thiab cov qauv ntawm lub hwj chim transformers
Teb: Lub zog hloov hluav taws xob yog cov khoom siv hluav taws xob zoo li qub uas siv los hloov qhov hluav taws xob thiab tam sim no thaum tuav lub zog tsis hloov. Nws muaj insulated silicon steel ntawv stacked core thiab kev sib nrig sib insulated thawj thiab theem nrab windings nrog txawv lem. Cov tub ntxhais laminated zoo txo qhov eddy tam sim no poob thiab hysteresis poob. Peb ib zaug -theem transformers tuaj yeem ua ke los ua ib qho peb -theem transformer unit rau kev lag luam thiab daim phiaj siv.
26. Lub hauv paus ntsiab lus ua haujlwm ntawm tam sim no transformers (CT)
Teb: CTs txais yuav thawj -series thiab theem nrab- kaw qauv. Cov thawj sab nta tuab hlau nrog ob peb lem, thaum lub thib ob sab txais nyias hlau nrog ntau lem. Raws li kev hloov pauv hloov pauv txoj cai, thawj thiab theem nrab tam sim no yog qhov sib npaug ntawm qhov hloov pauv, ua kom muaj tseeb qis qis -tam sim no hloov dua siab tshiab rau kev ntsuas thiab kev tiv thaiv.
27. Kev ua haujlwm ntawm voltage transformers (PT)
Teb: PTs yog tshwj xeeb transformers siv rau voltage hloov dua siab tshiab. Thawj thiab theem nrab voltage piv yog nruj me ntsis proportional rau winding tig ratio, muab standardized low-voltage signals rau meter ntsuas thiab tiv thaiv systems.
28. Kev ua haujlwm thiab cov yam ntxwv ntawm high-voltage insulators
Teb: High-voltage insulators txhawb nqa thiab kho cov busbars thiab conductors, tswj kev nyab xeeb kev nyab xeeb ntawm qhov chaw nyob thiab hauv av. Tshwj xeeb creepage ntug cov qauv nthuav tawm qhov kev ncua deb ntawm qhov chaw tiv thaiv kom tsis txhob flashover nyob rau hauv cov av ntub, plua plav thiab cov pa phem. Cov qib voltage sib txawv sib txawv rau qhov sib txawv ntawm cov qauv qhov siab thiab cov qauv tsim ntawm qhov chaw nkag. LVMA Hluav taws xob txais yuav siab- lub zog, corrosion- cov ntaub ntawv rwb thaiv tsev tiv thaiv kom hloov mus rau ntau qhov chaw ua haujlwm thoob ntiaj teb.
Brand Conclusion
Raws li ib tug txhim khu kev qha thoob ntiaj teb tsum ntawm ua tiav high thiab tsawg voltage fais fab faib khoom, LVMA Electrical specializes nyob rau hauv nruab nrab voltage switchgear, nplhaib loj units thiab GIS kev daws teeb meem. Ua raws li cov txheej txheem tsim khoom thoob ntiaj teb, peb xa cov khoom siv hluav taws xob muaj kev nyab xeeb, ua haujlwm tau zoo thiab ruaj khov nrog kev txhawb nqa kev tshaj lij thiab kev ua tiav tom qab- kev muag khoom, kev txhawb zog ruaj khov thiab ntse kev ua haujlwm ntawm lub ntiaj teb fais fab kev lag luam.