Qhov Txawv Ntawm MV thiab HV Switchgear Piav Qhia

Kev nkag siab txog qhov sib txawv ntawm qhov nruab nrab voltage (MV) thiab qhov siab voltage (HV) switchgear yog qhov tseem ceeb rau cov kws tshaj lij hauv kev tsim hluav taws xob. MV switchgear feem ntau ua haujlwm ntawm 1kV txog 35kV, tswj kev faib hluav taws xob hauv cov chaw lag luam thiab cov tsev lag luam. HV hloov, txij li 35kV txog 800kV, tswj kev xa hluav taws xob hla cov kab hluav taws xob thiab cov haujlwm tseem ceeb hauv kev tsim kho vaj tse. Qhov sib txawv tseem ceeb yog nyob rau hauv qhov ntsuas hluav taws xob, cov kev cai rwb thaiv tsev, cov txheej txheem kev nyab xeeb, thiab qhov ntau thiab tsawg ntawm daim ntawv thov. Cov kab ke tswj hluav taws xob no ua haujlwm ua tus txha nqaj qaum ntawm cov tes hauj lwm faib hluav taws xob, ua kom ntseeg tau tias kev ua haujlwm ntawm lub tshuab hluav taws xob thiab kev tiv thaiv relay ua haujlwm hla ntau qib hluav taws xob.

Cov Qauv Kev Faib Tawm Voltage thiab Cov Ntawv Thov

Lub hauv paus rau kev sib txawv ntawm MV thiab HV switchgear systems yog kev faib tawm voltage. Raws li cov qauv thoob ntiaj teb, qhov nruab nrab voltage yog txhais tias yog ntawm 1 kV thiab 35 kV, thaum qhov siab voltage suav nrog ntau yam ntawm 35 kV thiab 800 kV. Kev tsim cov khoom siv, cov cai kev nyab xeeb, thiab cov txheej txheem teeb tsa yog txhua yam cuam tshuam ncaj qha los ntawm cov chav kawm no. Cov chaw faib khoom, cov tsev lag luam, thiab cov chaw tsim khoom lag luam feem ntau yog cov khoom siv nruab nrab voltage switchgear.

Cov kab ke MV yog qhov tseem ceeb rau qhov xav tau kev faib hluav taws xob ntawm cov haujlwm mining, cov chaw ua tshuaj lom neeg, thiab cov chaw ua hlau. Cov theem hluav taws xob yog raws nraim li qhov xav tau ntawm cov khoom siv ua haujlwm thiab cov tsav tsheb hauv kev lag luam. Cov chaw xa hluav taws xob, cov chaw tsim hluav taws xob, thiab cov chaw txuas hluav taws xob yog cov piv txwv ntawm kev siv hluav taws xob siab. HV switchgear tau koom ua ke rau hauv cov chaw tsim hluav taws xob thermal, cov chaw ua liaj ua teb cua, thiab cov haujlwm hnub ci kom txuas rau cov tes hauj lwm xa hluav taws xob. Cov kab ke hluav taws xob siab dua no kuj siv rau hauv cov chaw tsim kho tshav dav hlau thiab cov tsheb ciav hlau hauv nroog.

Peb qhov sib txawv ntawm lub zog hluav taws xob:

• Kev ua haujlwm ntau yam: MV (1-35kV) vs HV (35-800kV)
• Kev tsom mus rau daim ntawv thov: MV rau kev faib tawm piv rau HV rau kev sib kis
• Txoj hauj lwm ntawm lub network: MV ntawm cov ntsiab lus siv piv rau HV ntawm cov chaw tsim khoom / kis tau tus mob

Yog tias koj xav tau cov khoom siv rau kev siv faib khoom lag luam, ces MV switchgear yog qhov tsim nyog dua. Yog tias koj xav tau kev tswj hwm lub zog kis tau tus mob, ces HV hloov zoo dua raws li koj xav tau.

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Technical Specifications thiab Performance Parameters

Cov yam ntxwv kev ua tau zoo ntawm MV thiab HV switchgear sib txawv ntau heev, nyob ntawm cov kev teeb tsa kev siv tshuab. Cov chav kawm voltage no sib txawv ntau heev hauv kev sib koom ua ke ntawm kev rwb thaiv tsev, kev cuam tshuam qhov txhaum, thiab lub peev xwm nqa tam sim no. Nrog rau kev cuam tshuam qhov txhaum txog li 63kA, cov khoom siv hluav taws xob nruab nrab feem ntau tswj cov ntsuas tam sim no ntawm 630A thiab 6300A. Rau qhov ntev ntawm ib mus rau peb vib nas this, qhov ntsuas luv luv feem ntau poob ntawm 25kA thiab 63kA.

Feem ntau ntawm cov kev xav tau fais fab lag luam thiab kev lag luam tau ua tiav zoo los ntawm cov qauv no. Nrog rau qhov muaj peev xwm cuam tshuam qhov txhaum tshaj 80kA thiab lub peev xwm los tswj cov tam sim no txog li 8000A, cov kab ke hluav taws xob siab qhia txog cov yam ntxwv ua tau zoo dua. Rau lub sijhawm ntev, cov nqi luv luv tiv taus tshaj 100kA. Cov theem zog arc flash xav tau cov txheej txheem kev nyab xeeb tshwj xeeb thiab kev tiv thaiv zoo dua. HV switchgear raug rau kev lees paub kev ua tau zoo dua, raws li cov ntaub ntawv xeem los ntawm IEC 62271 cov qauv. Thaum MV systems feem ntau sim ntawm 70kV rau 24kV chav kawm khoom siv, dielectric kuaj voltages tshaj 395kV rau 362kV chav kawm khoom siv. Cov kab ke rwb thaiv tsev muaj zog xav tau rau kev ua haujlwm hluav taws xob siab dua tau qhia los ntawm lub zog zaus tiv taus kev xeem.

Kev sib piv cov ntsiab lus tseem ceeb:

• Tam sim no muaj peev xwm: MV txog li 6300A vs HV txog li 8000A+
• Kev cuam tshuam txhaum: MV txog li 63kA vs HV tshaj 80kA
• Muaj peev xwm tiv taus: MV 25-63kA vs HV 100kA+
• Kev ntsuas hluav taws xob: MV 70kV vs HV 395kV+

Yog tias koj xav tau kev tswj hwm qhov txhaum me me rau cov txheej txheem kev lag luam, ces cov lus qhia MV yog qhov tsim nyog dua. Yog tias koj xav tau kev cuam tshuam qhov txhaum siab tshaj plaws rau cov ntawv thov kis, ces HV kev ua tau zoo dua pab koj cov kev xav tau

Kev Tsim Qauv, Kev Tsim Kho Vaj Tse, thiab Kev Tsim Kho Qhov Txawv

Cov kev xav tau kev ua haujlwm sib txawv thiab kev txhawj xeeb txog kev nyab xeeb tau pom tseeb hauv qhov sib txawv ntawm kev tsim qauv ntawm MV thiab HV hloov. Cov qauv tsim thaiv kev tiv thaiv, kev xaiv cov khoom siv, thiab cov qauv sib piv ntawm lub cev txhua yam hloov kho rau qhov nyuaj ntawm qhov hluav taws xob. Cov qauv tsim me me uas muaj hlau kaw nrog cua lossis SF6 roj rwb thaiv tsev siv rau hauv cov khoom siv hluav taws xob nruab nrab. Cov qhov dav ntawm vaj huam sib luag feem ntau poob ntawm 800 thiab 1200 hli, uas haum rau cov chaw lag luam nrog qhov chaw tsawg.

Cov kev ua tau txuas ntxiv yav tom ntej thiab kev hloov kho qhov yooj ywm tau ua tau los ntawm kev tsim kho modular. Cov hneev taw loj dua thiab kev sib koom tes rwb thaiv tsev zoo dua yog qhov tsim nyog rau cov tsev muaj hluav taws xob siab. Raws li cov thev naus laus zis roj-insulated switchgear (GIS) tau txais kev rub, SF6 roj yog siv rau nws cov yam ntxwv dielectric zoo tshaj plaws. Kev txhim kho arc containment systems thiab creepage distance ntev dua yog cov yam ntxwv ntawm cov qauv tsim hlau kaw. Busbar configurations sib txawv heev thoob plaws cov chav kawm voltage.

Cov tooj liab lossis txhuas conductors nrog cov rwb thaiv tsev yooj yim siv rau hauv MV systems. Cov qauv tsim tshwj xeeb busbar nrog cov rwb thaiv tsev zoo dua thiab cov txheej txheem tiv thaiv corona yog qhov tsim nyog rau kev teeb tsa high-voltage. Kev koom ua ke ntawm cov voltage transformers thiab cov tam sim no transformers sib txawv heev. Thaum HV systems feem ntau siv cov sensors optical thiab cov cuab yeej ntsuas hluav taws xob rau kev ua kom raug thiab kev nyab xeeb, MV installations siv cov transformers hom txhab ib txwm muaj.

Kev sib txawv ntawm kev tsim kho muaj xws li:

• Qhov loj ntawm lub cev: MV compact panels vs HV extensive structures
• Hom rwb thaiv tsev: MV cua/basic SF6 vs HV advanced gas systems
• Kev tsim qauv Busbar: MV tus qauv conductors vs HV corona-protected systems
• Kev ntsuas kev sib xyaw ua ke: MV ib txwm muaj vs HV hluav taws xob sensors

Yog tias koj xav tau qhov chaw txuag tau rau cov chaw ua haujlwm, ces MV compact designs yog qhov tsim nyog dua. Yog tias koj xav tau cov khoom siv kis tau dav dav, ces HV robust construction zoo dua rau koj cov ntawv thov.

Cov Kev Cai Kev Nyab Xeeb thiab Cov Txheej Txheem Tiv Thaiv

Muaj kev nce ntxiv ntawm cov txheej txheem kev nyab xeeb thiab kev tiv thaiv ntawm MV thiab HV hloov kev teeb tsa. Cov theem hluav taws xob siab dua ua rau muaj kev xav tau kev tiv thaiv arc flash, cov txheej txheem kev nyab xeeb hluav taws xob, thiab kev teem sijhawm txij nkawm. Cov theem zog ntawm 8 thiab 40 cal / cm² feem ntau yog them los ntawm kev tiv thaiv hluav taws xob nruab nrab voltage arc flash. Rau cov haujlwm txij nkawm, Qeb 2-4 arc flash suits yog cov khoom siv tiv thaiv tus kheej. Kev tsis muaj zog ntawm tus neeg teb xov tooj thaum hloov cov txheej txheem raug txo qis los ntawm kev tswj chaw taws teeb.

Cov theem zog arc flash hauv cov kab ke hluav taws xob siab yog ntau dua thiab feem ntau tshaj 100 cal / cm². Cov thev naus laus zis tshem tawm qhov txhaum sai, cov sensors ntes arc, thiab cov khoom siv tso tawm siab yog txhua feem ntawm cov kab ke tiv thaiv siab heev. Rau feem ntau ntawm kev ua haujlwm hloov pauv, kev ua haujlwm deb dhau los ua qhov tseem ceeb. Thoob plaws txhua qib voltage, cov kab ke tiv thaiv relay qhia txog kev nyuaj zuj zus. Cov relays digital ntau yam nrog cov yam ntxwv sib txuas lus tseem ceeb siv hauv MV systems.

Cov kab ke HV sib xyaw ua ke cov kev ua haujlwm tsis siv neeg thiab kev saib xyuas deb nrog rau txhua yam SCADA systems. Cov kev xav tau rau kev teem sijhawm txij nkawm sib txawv heev ntawm cov chav kawm voltage. Thaum cov khoom siv MV feem ntau dhau los ntawm kev tshuaj xyuas peb txog tsib xyoos, HV kev teeb tsa yuav muaj sijhawm kaum txog kaum tsib xyoos vim muaj kev rwb thaiv tsev zoo dua thiab yooj yim nkag mus rau kev txij nkawm.

Cov yam ntxwv ntawm kev nce qib kev nyab xeeb:

• Arc flash zog: MV 8-40 cal/cm² vs HV 100+ cal/cm²
• Cov khoom siv tiv thaiv: MV Qeb 2-4 vs HV cov kab ke tshwj xeeb
• Hom kev ua haujlwm: MV tes / chaw taws teeb vs HV feem ntau nyob deb
• Kev saib xyuas lub voj voog: MV 3-5 xyoos vs HV 10-15 xyoos

Yog tias koj xav tau cov kev cai nyab xeeb uas tswj tau rau kev ua haujlwm hauv kev lag luam, ces cov txheej txheem tiv thaiv MV yog qhov tsim nyog dua. Yog tias koj xav tau cov txheej txheem kev nyab xeeb siab tshaj plaws rau cov khoom siv sib kis, ces HV kev tiv thaiv siab heev ua haujlwm tau zoo dua rau koj cov kev xav tau.

Kev txheeb xyuas tus nqi thiab kev xav txog nyiaj txiag

Qhov kev xaiv ntawm MV thiab HV switchgear systems yog cuam tshuam los ntawm kev xav txog kev lag luam. Ntawm cov pawg voltage, muaj qhov sib txawv tseem ceeb hauv kev nqis peev pib, cov nqi teeb tsa, thiab cov nuj nqis ua haujlwm tas mus li. Nyob ntawm cov lus qhia tshwj xeeb, cov khoom siv hluav taws xob nruab nrab feem ntau xav tau cov nuj nqis pib qis dua, xws li $ 50,000 txog $ 200,000 ib lub bay. Cov qauv tsim me me thiab cov kev xav tau ntawm lub hauv paus ua rau cov nqi teeb tsa tsawg. Cov nuj nqis nyiaj txiag project raug txo qis los ntawm lub sijhawm xa khoom luv dua.

Kev teeb tsa hluav taws xob siab kim heev, nrog rau cov khoom siv kis tau tus nqi ntau dua $ 500,000 ib lub thawv. Cov nqi ntawm qhov project tau nce ntxiv ntau los ntawm cov kev cai tshwj xeeb ntawm kev teeb tsa, cov txheej txheem kuaj xyuas kom meej, thiab kev ceev faj kev nyab xeeb zoo dua. Lub sijhawm ua haujlwm ntawm qhov project yuav raug cuam tshuam los ntawm lub sijhawm ua khoom ntev. Qhov sib txawv ntawm cov theem hluav taws xob tau pom los ntawm kev tshuaj xyuas tus nqi ua haujlwm. MV systems siv cov khoom hloov pauv sib xws tab sis xav tau kev kho dua tshiab ntau dua.

Cov kab ke HV siv sijhawm ntev dua, uas kuj xav tau cov khoom siv kim thiab kev paub txog kev txij nkawm tshwj xeeb. Txawm hais tias cov kab ke HV xav tau cov nqi pib ntau dua, kev txiav txim siab txog tus nqi ntawm lub neej voj voog nyiam lawv rau cov ntawv thov xa xov. Tshaj li 25-30 xyoo ntawm kev ua haujlwm, kev txhim kho kev ntseeg siab, lub neej ua haujlwm ntev dua, thiab kev txij nkawm tsawg dua txhua yam pab txhawb rau cov txiaj ntsig zoo ntawm kev lag luam. Cov txiaj ntsig kev lag luam MV yog qhov tsim nyog dua yog tias koj xav tau cov kev daws teeb meem pheej yig rau kev faib khoom lag luam. Cov txiaj ntsig ntawm lub neej voj voog HV ntau dua li cov nqi them ntxiv yog tias koj xav tau kev nqis peev mus sij hawm ntev hauv cov khoom siv xa xov.

xaus

Qhov sib txawv tseem ceeb ntawm MV thiab HV hloov suav nrog cov ntsuas hluav taws xob, cov lus qhia txog kev siv tshuab, cov kev cai nyab xeeb, thiab kev txiav txim siab txog kev lag luam. Cov kab ke hluav taws xob nruab nrab zoo tshaj plaws hauv kev siv faib khoom lag luam, muab cov kev daws teeb meem pheej yig rau kev tsim khoom thiab cov chaw lag luam. Kev teeb tsa hluav taws xob siab muab kev ua tau zoo dua rau cov khoom siv xa hluav taws xob, xa kev ntseeg siab zoo dua thiab cov txiaj ntsig kev ua haujlwm mus sij hawm ntev. Kev nkag siab txog cov kev sib txawv no ua rau cov kws tshaj lij hauv lub zog hluav taws xob txiav txim siab tau zoo. Cov txheej txheem xaiv kom raug yuav tsum xav txog cov kev cai hluav taws xob, kev ua haujlwm tsis raug, cov txheej txheem kev nyab xeeb, thiab kev lag luam hauv lub neej. Kev sab laj nrog cov kws tshaj lij ua kom muaj kev xaiv cov khoom siv zoo tshaj plaws rau cov kev xav tau tshwj xeeb thiab cov hom phiaj ua haujlwm.

Yuguang cov kev daws teeb meem HV Switchgear

Shaanxi Yuguang Electric tshwm sim los ua ib lub tuam txhab tsim khoom HV switchgear uas muab cov kev daws teeb meem hluav taws xob rau ntau yam kev siv hauv kev lag luam. Peb qhov kev txawj ntse suav nrog tag nrho cov hluav taws xob spectrum txij li 6kV txog 40.5kV, txuas qhov sib txawv ntawm qhov xav tau hluav taws xob nruab nrab thiab siab tau zoo.

Yuguang HV Switchgear Cov txiaj ntsig:

• Kev Muaj Peev Xwm Tshawb Fawb thiab Tsim Kho Tshiab: 39 daim ntawv pov thawj qauv siv hluav taws xob qhia txog kev tsim kho tshiab tas mus li hauv kev siv tshuab hluav taws xob nqus tsev thiab kev tsim cov khoom siv hluav taws xob uas muaj roj rwb thaiv tsev. Peb pab neeg ua haujlwm tsim cov kev daws teeb meem tshwj xeeb rau lub zog cua, metallurgy, thiab petrochemical.
• Khoom Zoo Tshaj Plaws: Daim ntawv pov thawj ISO 9001: 2015 ua kom muaj kev tsim khoom zoo tas mus li. Cov kab ntau lawm siab heev suav nrog cov thev naus laus zis ua tiav thiab cov khoom siv kuaj xyuas kom ua haujlwm tau zoo, tsis tas yuav saib xyuas.
• Kev Txhawb Nqa Txog Kev Siv Tshuab: Kev cob qhia txog kev teeb tsa, kev pab txhawb nqa kev ua haujlwm sib xws, thiab kev pab tswv yim txog kev siv tshuab ua kom kev ua tiav ntawm qhov project zoo. Peb pab neeg muab cov duab kos, kev xam lej, thiab kev txhawb nqa kev sib koom ua ke ntawm lub system.
• Kev Muaj Peev Xwm Teb Sai: Qhov chaw zoo nyob hauv Baoji, Shaanxi, muab kev txhawb nqa kev xa khoom zoo thoob plaws hauv tsev thiab thoob ntiaj teb. Kev sib raug zoo ntawm cov khoom xa tuaj tau lees tias lub sijhawm xa khoom ruaj khov thiab muaj cov khoom seem.
• Cov Kev Pabcuam Tag Nrho: Kev txhawb nqa tag nrho lub neej suav nrog kev tshawb fawb thiab kev txhim kho tshwj xeeb, kev hloov pauv khoom siv, kev taw qhia kev teeb tsa, thiab kev pabcuam tom qab muag tag nrho. Kev muaj cov khoom seem thiab kev teb sai sai rau qhov yuam kev txo qis kev cuam tshuam kev ua haujlwm.
• Cov Ntawv Pov Thawj Kev Lag Luam: Kev lees paub txog lub teb chaws cov tuam txhab thev naus laus zis siab, ntau daim ntawv tshuaj xyuas, thiab daim ntawv pov thawj tswj hwm kev txawj ntse ua pov thawj peb qhov kev txawj ntse thiab kev cog lus zoo.
• Kev Kho Kom Zoo Tshaj Plaws: Cov kev pabcuam OEM & ODM ua raws li cov kev xav tau tshwj xeeb ntawm kev tsim hluav taws xob, kev xa hluav taws xob, thiab kev faib hluav taws xob. Cov peev xwm tsim khoom yooj ywm txhawb nqa ntau yam voltage thiab tam sim no.
• Cov Ntaub Ntawv Ua Tau Zoo: Muaj kev paub dhau los hauv kev pabcuam rau cov pab pawg fais fab loj, suav nrog State Grid thiab China Southern Power Grid cov ceg hauv cheeb tsam. Kev teeb tsa zoo thoob plaws lub zog thermal, lub zog cua, photovoltaic, thiab cov chaw hydropower.
• Kev Ncav Tau Thoob Ntiaj Teb rau Kev Lag Luam: Cov kev pabcuam ntshuam-xa tawm thiab kev txhawb nqa kev txawj ntse hla ciam teb pab txhawb kev koom tes thoob ntiaj teb. Kev txhawb nqa cov ntaub ntawv thiab daim ntawv pov thawj ua kom cov txheej txheem yuav khoom yooj yim dua.
• Kev Dais Teeb Meem Uas Siv Tau Tus Nqi: Kev sib tw nqi ua ke nrog kev ua tau zoo txhim khu kev qha muab qhov txiaj ntsig zoo tshaj plaws rau kev siv hauv kev lag luam thiab cov khoom siv hluav taws xob. Kev txo nqi ua haujlwm mus sij hawm ntev los ntawm kev txhim kho kev ntseeg siab thiab txo qhov yuav tsum tau saib xyuas.

Yuguang txoj kev cog lus rau kev tsim kho tshiab thiab kev ua tau zoo tshaj plaws ua rau peb ua koj tus khub ntseeg siab rau cov haujlwm tseem ceeb ntawm lub zog. Tiv tauj peb ntawm yog ygvcb@hotmail.com los tham txog koj cov kev xav tau tshwj xeeb ntawm HV switchgear thiab tshawb nrhiav seb peb cov kev daws teeb meem dav dav tuaj yeem txhim kho koj txoj haujlwm kom ua tiav li cas.

References

1. Lub Koom Haum Txuj Ci IEEE. "IEEE Std C37.20.1-2015 - IEEE Txuj Ci rau Cov Hluav Taws Xob Qis-Voltage (1000 Vac thiab qis dua, 3200 Vdc thiab qis dua) Lub Hwj Chim Circuit Breaker Switchgear." Lub Koom Haum ntawm Cov Kws Ua Hluav Taws Xob thiab Electronics, 2015.

2. Pawg Neeg Saib Xyuas Hluav Taws Xob Thoob Ntiaj Teb. "IEC 62271-200: 2011 - Cov khoom siv hloov pauv hluav taws xob siab thiab cov khoom siv tswj - Ntu 200: Cov khoom siv hloov pauv hluav taws xob AC uas muaj hlau kaw rau cov hluav taws xob ntsuas siab dua 1 kV thiab txog li thiab suav nrog 52 kV." Pawg Neeg Saib Xyuas Hluav Taws Xob Thoob Ntiaj Teb, 2011.

3. Naidu, MS thiab V. Kamaraju. "Kev Tsim Kho Hluav Taws Xob Siab, Tsab Thib Tsib." McGraw-Hill Education, 2013.

4. Flurscheim, Charles H. "Lub Tswv Yim thiab Kev Tsim Qauv ntawm Lub Tshuab Hluav Taws Xob Fais Fab." Lub Tsev Kawm Ntawv Engineering thiab Technology, 1982.

5. McDonald, John D. "Kev Tsim Kho Hluav Taws Xob Fais Fab, Tsab Thib Peb." CRC Xovxwm, 2012.

6. Ryan, Hugh M. "Kev Tsim Kho Hluav Taws Xob Siab thiab Kev Ntsuas, Tsab Thib Peb." Lub Tsev Kawm Ntawv ntawm Kev Tsim Kho thiab Kev Siv Tshuab, 2013.