EV Them Nyiaj Tiv Thaiv Kev Tiv Thaiv, Hluav Taws Xob Tsheb Tsheb Charger SPD

EV Them Tiv Thaiv Kev Tiv Thaiv

EV them nyiaj - tsim teeb tsa hluav taws xob

Kev them tsheb hluav taws xob yog lub zog tshiab rau kev teeb tsa hluav taws xob qis uas tuaj yeem nthuav tawm qee qhov kev cov nyom.

Cov kev xav tau tshwj xeeb rau kev nyab xeeb thiab tsim qauv tau muab hauv IEC 60364 Kev teeb tsa hluav taws xob qis-Ntu 7-722: Yuav tsum muaj kev teeb tsa tshwj xeeb lossis chaw nyob-Cov khoom siv hluav taws xob tsheb.

Daim duab EV21 muab cov ntsiab lus ntawm kev siv ntawm IEC 60364 rau ntau hom EV them nqi.

[a] qhov xwm txheej ntawm cov chaw them nyiaj them tsheb, "teeb tsa LV ntiag tug teeb tsa" yog qhov tsawg, tab sis IEC60364-7-722 tseem siv los ntawm cov chaw siv hluav taws xob txuas mus rau EV txuas txuas.

Daim duab EV21-Kev thov ntawm IEC 60364-7-722 tus qauv, uas piav qhia qhov tshwj xeeb xav tau thaum ua ke EV them nqi hluav taws xob rau hauv kev tsim hluav taws xob LV tshiab lossis tam sim no.

Nws tseem yuav tsum tau sau tseg tias ua raws IEC 60364-7-722 ua rau nws yuav tsum muaj qhov sib txawv ntawm EV them nqi teeb tsa ua kom tau raws li cov qauv IEC uas cuam tshuam nrog. Piv txwv li (tsis suav nrog):

EV chaw nres tsheb them nyiaj (hom 3 thiab 4) yuav tsum ua raws li qhov tsim nyog ntawm IEC 61851 series.
Cov Khoom Siv Tam Sim No (RCDs) yuav tsum ua raws li ib qho ntawm cov qauv hauv qab no: IEC 61008-1, IEC 61009-1, IEC 60947-2, lossis IEC 62423.
RDC-DD yuav tsum ua raws li IEC 62955
Cov cuab yeej tiv thaiv overcurrent yuav tsum ua raws IEC 60947-2, IEC 60947-6-2 lossis IEC 61009-1 lossis nrog rau feem cuam tshuam ntawm IEC 60898 series lossis IEC 60269 series.
Qhov chaw txuas yog lub qhov (socket) qhov hluav taws xob lossis lub tsheb txuas, nws yuav tsum ua raws li IEC 60309-1 lossis IEC 62196-1 (qhov tsis xav tau kev sib hloov), lossis IEC 60309-2, IEC 62196-2, IEC 62196-3 lossis IEC TS 62196-4 (qhov xav tau kev sib pauv hloov pauv), lossis lub tebchaws tus qauv rau lub qhov (socket), muab qhov ntsuas tam sim no tsis tshaj 16 A.

Qhov cuam tshuam ntawm EV them nyiaj rau qhov siab tshaj plaws xav tau lub zog thiab cov cuab yeej siv
Raws li tau hais hauv IEC 60364-7-722.311, "Nws yuav tsum raug txiav txim siab tias hauv kev siv ib txwm muaj, txhua qhov txuas txuas tau siv ntawm nws qhov ntsuas tam sim no lossis ntawm qhov teeb tsa siab tshaj plaws them tam sim no ntawm lub chaw nres tsheb them. Txoj hauv kev rau kev teeb tsa lub siab tshaj plaws them tam sim no tsuas yog ua los ntawm kev siv tus yuam sij lossis cov cuab yeej thiab tsuas yog siv tau rau cov neeg txawj lossis qhia. "

Qhov ntsuas ntawm qhov Circuit Court muab ib qho txuas txuas (hom 1 thiab 2) lossis ib qho EV them chaw nres tsheb (hom 3 thiab 4) yuav tsum ua tiav raws li qhov them nyiaj ntau tshaj tam sim no (lossis tus nqi qis dua, muab qhov teeb tsa tus nqi no tsis yooj yim rau cov neeg tsis muaj txuj ci).

Daim duab EV22 - Piv txwv ntawm qhov ntsuas tam sim no rau Hom 1, 2, thiab 3

Cov yam ntxwv	Them hom
Cov yam ntxwv	Hom 1 & 2	Hom 3
Cov khoom siv rau kev ntsuas qhov loj me	Txheem qhov (socket) qhov hluav taws xob	3.7 kWm ib theem	7 kWm ib theem	11 kWm peb theem	22 kWm peb theem
Qhov siab tshaj tam sim no los txiav txim siab @230 / 400Vac	16A P+NA	16A P+NA	32A P+NA	16A P+NA	32A P+NA

IEC 60364-7-722.311 tseem hais ntxiv tias "Txij li txhua qhov txuas txuas ntawm kev teeb tsa tuaj yeem siv tau ib txhij, qhov sib txawv ntawm qhov sib faib khoom yuav tsum tau muab sib npaug rau 1 tshwj tsis yog kev tswj hwm thauj khoom suav nrog hauv EV cov khoom siv lossis teeb tsa upstream, los yog kev sib txuas ntawm ob qho tib si. "

Qhov kev sib txawv los txiav txim siab rau ntau lub EV them lub tsheb sib npaug yog sib npaug rau 1 tshwj tsis yog Lub Chaw Tswj Kev Tswj (LMS) tau siv los tswj cov EV them nyiaj.

Kev teeb tsa LMS los tswj hwm EVSE yog li pom zoo: nws tiv thaiv kev saib xyuas ntau, ua kom zoo dua cov nqi ntawm cov khoom siv hluav taws xob, thiab txo cov nqi khiav lag luam los ntawm kev zam lub zog xav tau nce. Xa mus rau EV them nqi hluav taws xob rau piv txwv ntawm kev tsim vaj tsev nrog thiab tsis muaj LMS, qhia txog kev ua kom tau zoo ntawm kev teeb tsa hluav taws xob. Xa mus rau EV them nyiaj-cov qauv vaj tsev rau cov ncauj lus kom ntxaws txog qhov sib txawv sib txawv ntawm LMS, thiab cov hauv kev ntxiv uas tuaj yeem ua tau nrog kev txheeb xyuas huab thiab saib xyuas EV them nyiaj. Thiab txheeb xyuas Smart charging cov kev xav rau kev pom zoo EV kev koom ua ke rau kev xam pom ntawm kev them nyiaj ntse.

Txhim kho tus neeg xyuas pib thiab cov tshuab hauv av

Raws li tau hais hauv IEC 60364-7-722 (Nqe 314.01 thiab 312.2.1):

Yuav tsum muab lub voj voog tshwj xeeb rau kev xa hluav taws xob los ntawm/mus rau lub tsheb hluav taws xob.
Hauv TN txheej txheej av, ib lub vojvoog muab cov khoom sib txuas yuav tsum tsis suav nrog tus coj PEN

Nws kuj tseem yuav tsum tau txheeb xyuas seb lub tsheb hluav taws xob siv lub chaw them nyiaj muaj cov kev txwv cuam tshuam nrog cov txheej txheem hauv av tshwj xeeb: piv txwv li, qee lub tsheb tsis tuaj yeem txuas nrog hauv Hom 1, 2, thiab 3 hauv IT system earthing system (Piv txwv: Renault Zoe).

Kev tswj hwm hauv qee lub tebchaws yuav suav nrog cov kev xav tau ntxiv ntsig txog cov hauv av thiab PEN kev saib xyuas txuas ntxiv. Piv txwv: rooj plaub ntawm TNC-TN-S (PME) network hauv tebchaws Askiv. Yuav kom ua tau raws li BS 7671, nyob rau hauv rooj plaub ntawm PEN tawg, kev tiv thaiv ntxiv raws qhov ntsuas hluav taws xob yuav tsum tau teeb tsa yog tias tsis muaj hluav taws xob hauv av hauv av.

Kev tiv thaiv hluav taws xob

EV them daim ntawv thov nce kev pheej hmoo ntawm hluav taws xob, rau ntau qhov laj thawj:

Plugs: kev pheej hmoo tsis sib xws ntawm Tus Tiv Thaiv Lub Ntiaj Teb (PE).
Cable: kev pheej hmoo ntawm cov khoom siv puas rau rwb thaiv kab hluav taws xob (tsoo los ntawm txoj hlua ntawm lub log tsheb, rov ua haujlwm ...)
Lub tsheb hluav taws xob: muaj kev pheej hmoo nkag mus rau cov khoom nquag ntawm lub charger (chav kawm 1) hauv lub tsheb vim yog kev puas tsuaj ntawm kev tiv thaiv yooj yim (xwm txheej, kev saib xyuas tsheb, thiab lwm yam)
Ib puag ncig ntub lossis dej ntsev (daus ntawm lub tsheb hluav taws xob nkag, nag ...)

Txhawm rau coj cov kev pheej hmoo nce ntxiv no mus rau hauv tus account, IEC 60364-7-722 hais tias:

Kev tiv thaiv ntxiv nrog RCD 30mA yog qhov yuav tsum tau ua
Kev ntsuas tiv thaiv "tso kom ncav cuag", raws li IEC 60364-4-41 Annex B2, tsis raug tso cai
Kev tiv thaiv tshwj xeeb raws li IEC 60364-4-41 Annex C tsis raug tso cai
Kev sib cais hluav taws xob rau kev muab khoom ntawm ib qho ntawm cov cuab yeej siv tam sim no tau lees paub tias yog kev ntsuas tiv thaiv nrog kev hloov pauv hloov ua raws li IEC 61558-2-4, thiab qhov hluav taws xob ntawm kev sib cais hauv Circuit Court yuav tsum tsis pub tshaj 500 V. Qhov no feem ntau siv daws rau hom 4.

Kev tiv thaiv tiv thaiv hluav taws xob los ntawm kev rho tawm tsis siv khoom

Cov kab lus hauv qab no muab cov ncauj lus kom ntxaws ntawm IEC 60364-7-722: 2018 tus qauv (raws li Clauses 411.3.3, 531.2.101, thiab 531.2.1.1, thiab lwm yam).

Txhua qhov txuas AC yuav tsum raug tiv thaiv ib tus zuj zus los ntawm cov cuab yeej siv tam sim no (RCD) nrog qhov ntsuas qhov ua haujlwm tam sim no uas tsis tshaj 30 mA.

RCDs tiv thaiv txhua qhov txuas txuas raws li 722.411.3.3 yuav tsum ua raws li yam tsawg kawg nkaus raws li qhov yuav tsum tau ua ntawm RCD hom A thiab yuav tsum muaj qhov ntsuas qhov ua haujlwm seem tam sim no tsis tshaj 30 mA.

Qhov twg lub chaw them nyiaj EV tau teeb tsa nrog lub qhov (socket) qhov hluav taws xob lossis lub tsheb txuas uas ua raws IEC 62196 (txhua ntu-"Cov ntsaws, lub qhov (socket), lub tsheb txuas thiab lub tsheb nkag-Kev them nqi hluav taws xob tsheb"), tiv thaiv ntsuas tiv thaiv DC txhaum yuav tsum siv tam sim no, tshwj tsis yog qhov chaw muab los ntawm lub chaw them nyiaj EV.

Cov kev ntsuas tsim nyog, rau txhua lub ntsiab lus sib txuas, yuav tsum muaj raws li hauv qab no:

Kev siv RCD hom B, lossis
Kev siv RCD hom A (lossis F) ua ke nrog Cov Khoom Siv Tam Sim No Tam Sim No (RDC-DD) uas ua raws IEC 62955

RCDs yuav tsum ua raws li ib qho ntawm cov qauv hauv qab no: IEC 61008-1, IEC 61009-1, IEC 60947-2 lossis IEC 62423.

RCDs yuav tsum tshem tawm txhua tus neeg ua haujlwm nyob.

Daim duab EV23 thiab EV24 hauv qab no suav cov ntsiab lus no.

Daim duab EV23 - Ob txoj kev daws teeb meem tiv thaiv hluav taws xob poob (EV them chaw nres tsheb, hom 3)

Daim duab EV24-Kev sib sau ntawm IEC 60364-7-722 qhov yuav tsum tau muaj kev tiv thaiv ntxiv tiv thaiv hluav taws xob los ntawm kev rho tawm tsis siv neeg ntawm RCD 30mA

Hom 1 & 2

Hom 3

Hom 4

RCD 30mA hom A.

RCD 30mA hom B, lossis

RCD 30mA hom A + 6mA RDC-DD, lossis

RCD 30mA hom F + 6mA RDC-DD

Tsis siv

(tsis muaj AC txuas txuas & hluav taws xob sib cais)

Sau ntawv:

RCD lossis cov cuab yeej tsim nyog uas ua kom ntseeg tau tias muaj kev sib txuas ntawm cov khoom siv thaum DC ua txhaum tuaj yeem teeb tsa sab hauv EV chaw nres tsheb them nqi, nyob rau sab saud, lossis ob qhov chaw.
Cov hom RCD tshwj xeeb raws li tau piav qhia saum toj no xav tau vim tias AC/DC hloov pauv suav nrog hauv cov tsheb hluav taws xob, thiab siv los them lub roj teeb, tuaj yeem tsim DC tawm tam sim no.

Qhov kev xaiv uas nyiam tshaj, RCD hom B, lossis RCD hom A/F + RDC-DD 6 mA?

Cov txheej txheem tseem ceeb los sib piv ob txoj kev daws teeb meem no muaj peev xwm cuam tshuam rau lwm qhov RCDs hauv kev teeb tsa hluav taws xob (kev pheej hmoo ntawm qhov muag tsis pom), thiab kev cia siab txuas ntxiv ntawm kev pabcuam EV them nyiaj, raws li qhia hauv daim duab EV25.

Daim duab EV25-Sib piv RCD hom B, thiab RCD hom A + RDC-DD 6mA cov kev daws teeb meem

Cov qauv sib piv	Hom kev tiv thaiv siv hauv EV Circuit
Cov qauv sib piv	RCD hom B	RCD hom A (lossis F) + RDC-DD 6 mA
Tus naj npawb ntawm EV txuas cov ntsiab lus nqes qis tshaj ntawm hom A RCD kom tsis txhob muaj kev pheej hmoo dig muag	0^[a] (tsis tau)	Qhov siab tshaj 1 EV txuas txuas^[a]
Kev txuas ntxiv ntawm cov kev pabcuam ntawm EV cov ntsiab lus them nqi	OK DC tso tawm tam sim no ua rau kev mus yog [15 mA ... 60 mA]	Tsis pom zoo DC tso tawm tam sim no ua rau kev mus yog [3 mA ... 6 mA] Hauv qhov chaw ib puag ncig ntub, lossis vim kev laus ntawm cov rwb thaiv tsev, qhov dej ntws tam sim no zoo li yuav nce mus txog 5 lossis 7 mA thiab tuaj yeem ua rau muaj kev cuam tshuam tsis zoo.

Cov kev txwv no yog ua raws DC qhov siab tshaj tam sim no siv tau los ntawm hom A RCDs raws li IEC 61008 /61009 tus qauv. Xa mus rau kab lus tom ntej kom paub meej ntxiv txog qhov pheej hmoo ntawm qhov muag tsis pom thiab rau cov kev daws teeb meem uas txo qis qhov cuam tshuam thiab ua kom zoo dua qhov kev teeb tsa.

Tseem ceeb: cov no tsuas yog ob txoj kev daws teeb meem uas ua raws IEC 60364-7-722 tus qauv rau kev tiv thaiv hluav taws xob. Qee lub tuam txhab EVSE thov kom muab "cov cuab yeej tiv thaiv" lossis "tiv thaiv kev tiv thaiv". Txhawm rau kom paub ntau ntxiv txog qhov txaus ntshai, thiab xaiv qhov kev them nyiaj nyab xeeb, saib Daim Ntawv Dawb muaj cai ntsuas kev nyab xeeb rau them lub tsheb hluav taws xob

Yuav ua li cas siv kev tiv thaiv tib neeg thoob plaws kev teeb tsa txawm hais tias muaj cov khoom thauj uas tsim DC tawm mus

EV them nyiaj suav nrog AC/DC hloov pauv, uas tuaj yeem tsim DC tawm mus tam sim no. Qhov DC tawm tam sim no tau tso los ntawm EV Circuit's RCD tiv thaiv (lossis RCD + RDC-DD), kom txog thaum nws mus txog RCD/RDC-DD DC tripping tus nqi.

Qhov siab tshaj DC tam sim no uas tuaj yeem ntws los ntawm EV Circuit tsis muaj qhov hla yog:

60 mA rau 30 mA RCD hom B (2*IΔn raws li IEC 62423)
6 mA rau 30 mA RCD Hom A (lossis F) + 6mA RDC-DD (raws li IEC 62955)

Vim li cas qhov DC tawm tam sim no tuaj yeem yog teeb meem rau lwm qhov RCDs ntawm kev teeb tsa

Lwm qhov RCDs hauv kev teeb tsa hluav taws xob tuaj yeem "pom" DC qhov tam sim no, raws li qhia hauv daim duab EV26:

RCDs hauv dej yuav pom 100% ntawm DC qhov dej xau tam sim no, txawm li cas los xij hauv lub ntiaj teb (TN, TT)
RCDs tau teeb tsa ua ke yuav tsuas pom ib feem ntawm qhov tam sim no, tsuas yog rau TT lub tshuab hauv av, thiab tsuas yog thaum muaj qhov tsis raug tshwm sim hauv Circuit Court lawv tiv thaiv. Hauv TN lub hauv paus txheej txheem, DC qhov hluav taws xob tam sim no dhau los ntawm hom B RCD ntws rov qab los ntawm PE tus neeg xyuas pib, thiab yog li ntawd tsis tuaj yeem pom los ntawm RCDs ua ke.

Daim duab EV26 - RCDs hauv kab lossis sib luag tau cuam tshuam los ntawm DC cov dej xau tam sim no uas tau tso los ntawm hom B RCD

RCDs uas tsis yog hom B tsis tau tsim los ua kom raug thaum muaj DC tso tawm tam sim no, thiab tej zaum "dig muag" yog tias qhov tam sim no siab dhau: lawv cov tub ntxhais yuav tau pre-magnetized los ntawm DC tam sim no thiab yuav ua rau tsis nkag siab AC txhaum tam sim no, piv txwv li RCD yuav tsis mus ntxiv thaum muaj qhov txhaum AC (qhov xwm txheej txaus ntshai). Qhov no qee zaum hu ua "dig muag", "dig muag" lossis tsis txaus siab ntawm RCDs.

IEC cov qauv piav qhia (siab tshaj) DC offset siv los ntsuas qhov ua haujlwm raug ntawm ntau hom RCDs sib txawv:

10 mA rau hom F,
6 mA rau hom A
thiab 0 mA rau hom AC.

Qhov ntawd yog hais tias, txiav txim siab tus yam ntxwv ntawm RCDs raws li tau hais tseg los ntawm IEC tus qauv:

RCDs hom AC tsis tuaj yeem teeb tsa sab saud ntawm ib qho chaw them nqi EV, tsis hais txog qhov EV RCD xaiv (hom B, lossis hom A + RDC-DD)
RCDs Hom A lossis F tuaj yeem teeb tsa sab saud ntawm qhov siab tshaj ntawm ib lub chaw them nqi EV, thiab tsuas yog tias qhov chaw them nqi EV no tau tiv thaiv los ntawm RCD hom A (lossis F) + 6mA RCD-DD

RCD hom A/F + 6mA RDC-DD cov tshuaj muaj qhov cuam tshuam tsawg dua (tsawg dua ntsais muag) thaum xaiv lwm yam RCDs, txawm li cas los xij, nws kuj tseem muaj qhov txwv tsawg hauv kev coj ua, raws li qhia hauv daim duab EV27.

Daim duab EV27-Qhov siab tshaj plaws EV qhov chaw tiv thaiv los ntawm RCD hom A/F + 6mA RDC-DD tuaj yeem teeb tsa nqes ntawm RCDs hom A thiab F

Cov lus pom zoo kom ntseeg tau tias ua haujlwm tau raug ntawm RCDs hauv kev teeb tsa

Qee qhov kev daws teeb meem tuaj yeem txo qhov cuam tshuam ntawm EV cov hluav taws xob hauv lwm qhov RCDs ntawm kev teeb tsa hluav taws xob:

Txuas lub EV them hluav taws xob txuas hluav taws xob kom siab li sai tau hauv cov qauv siv hluav taws xob, kom lawv zoo ib yam rau lwm qhov RCDs, txhawm rau txo qhov kev pheej hmoo ntawm qhov muag tsis pom.
Siv TN txheej txheem yog tias ua tau, vim tias tsis muaj qhov muag pom ntawm RCDs ua ke
Rau RCDs ntws ntawm EV them hluav taws xob, ib yam nkaus

xaiv hom B RCDs, tshwj tsis yog tias koj tsuas muaj 1 lub charger EV uas siv hom A + 6mA RDC-DDor

xaiv yam tsis yog hom B RCDs uas tau tsim los kom tiv taus DC cov txiaj ntsig tam sim no dhau ntawm cov txiaj ntsig tshwj xeeb xav tau los ntawm IEC tus qauv, yam tsis cuam tshuam rau lawv li kev tiv thaiv AC kev ua tau zoo. Ib qho piv txwv, nrog Schneider Electric cov khoom lag luam yog: Acti9 300mA hom A RCDs tuaj yeem ua haujlwm yam tsis muaj qhov muag pom qhov nce mus txog 4 EV them nqi hluav taws xob tiv thaiv los ntawm 30mA hom B RCDs. Yog xav paub ntxiv, sab laj XXXX Electric Earth Fault Protection phau ntawv qhia uas suav nrog cov ntxhuav xaiv thiab xaiv digital.

Koj tseem tuaj yeem pom cov ntsiab lus ntxiv hauv tshooj F - RCDs xaiv thaum muaj DC lub ntiaj teb cov dej ntws tawm (tseem siv tau rau cov xwm txheej uas tsis yog them EV).

Piv txwv ntawm EV them daim duab hluav taws xob

Hauv qab no yog ob qho piv txwv ntawm daim duab hluav taws xob rau EV them nqi hluav taws xob hauv hom 3, uas ua raws li IEC 60364-7-722.

Daim duab EV28 - Piv txwv ntawm daim duab hluav taws xob rau ib lub chaw nres tsheb them nyiaj hauv hom 3 (@home - daim ntawv thov nyob)

Ib qho khoom siv tshwj xeeb rau EV them nyiaj, nrog 40A MCB tiv thaiv kev tiv thaiv ntau dhau
Kev tiv thaiv hluav taws xob nrog 30mA RCD hom B (30mA RCD hom A/F + RDC-DD 6mA kuj tseem siv tau)
RCD dej ntws yog hom A RCD. Qhov no tsuas yog ua tau los ntawm kev txhim kho tus yam ntxwv ntawm XXXX Electric RCD: tsis muaj kev pheej hmoo ntawm qhov muag tsis pom los ntawm qhov xau tam sim no uas tau tso los ntawm hom B RCD
Kuj suav nrog Kev Tiv Thaiv Kev Tiv Thaiv Kev Tiv Thaiv (pom zoo)

Daim duab EV29 - Piv txwv ntawm daim duab hluav taws xob rau ib lub chaw nres tsheb them nyiaj (hom 3) nrog 2 lub ntsiab lus txuas (daim ntawv thov kev lag luam, chaw nres tsheb ...)

Txhua qhov txuas txuas nws muaj nws tus kheej tshwj xeeb hauv Circuit Court
Kev tiv thaiv hluav taws xob los ntawm 30mA RCD hom B, ib qho rau txhua qhov txuas (30mA RCD hom A/F + RDC-DD 6mA kuj tseem siv tau)
Kev tiv thaiv overvoltage thiab RCDs hom B yuav raug teeb tsa hauv chaw nres tsheb them nyiaj. Hauv qhov xwm txheej twg, lub chaw nres tsheb them nyiaj tuaj yeem siv tau los ntawm kev hloov pauv nrog ib qho 63A Circuit Court
iMNx: qee lub tebchaws txoj cai yuav xav tau hloov pauv xwm txheej ceev rau EVSE hauv thaj chaw pej xeem
Kev tiv thaiv kev tiv thaiv tsis pom. Tej zaum yuav raug ntxiv rau lub chaw nres tsheb them nyiaj lossis hauv cov rooj sib txuas hauv nqes hav (nyob ntawm qhov deb ntawm kev hloov pauv thiab chaw nres tsheb them)

Kev tiv thaiv kev hloov pauv overvoltages

Lub zog hluav taws xob tau tsim los ntawm xob laim ze ntawm lub tshuab hluav taws xob nthuav tawm mus rau hauv lub network yam tsis muaj kev txo qis tseem ceeb. Raws li qhov tshwm sim, qhov overvoltage zoo li yuav tshwm sim hauv LV kev teeb tsa yuav tshaj qhov lees paub rau kev tiv thaiv qhov hluav taws xob pom zoo los ntawm cov qauv IEC 60664-1 thiab IEC 60364. Lub tsheb hluav taws xob, tau tsim nrog cov overvoltage qeb II raws li IEC 17409, yuav tsum yog li ntawd tiv thaiv tiv thaiv overvoltages uas tuaj yeem siab dua 2.5 kV.

Raws li qhov tsim nyog, IEC 60364-7-722 xav kom EVSE teeb tsa hauv cov chaw uas cov pej xeem siv tau los tiv thaiv kev tiv thaiv overvoltages. Qhov no tau lees paub los ntawm kev siv hom 1 lossis hom 2 tiv thaiv kev tiv thaiv kev tiv thaiv (SPD), ua raws li IEC 61643-11, teeb tsa hauv lub rooj hloov khoom siv muab lub tsheb hluav taws xob lossis ncaj qha rau hauv EVSE, nrog kev tiv thaiv qib ≤ 2.5 kV.

Tiv thaiv kev tiv thaiv los ntawm kev sib koom ua ke muaj zog

Thawj qhov kev tiv thaiv kom muab tso rau hauv nruab nrab yog tus neeg nruab nrab (tus neeg xyuas pib) uas ua kom muaj kev sib koom ua ke sib txuas ntawm txhua qhov kev coj ua ntawm EV teeb tsa.

Lub hom phiaj yog txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau ua kom muaj peev xwm sib luag ntawm txhua lub ntsiab lus hauv qhov kev teeb tsa.

Tiv thaiv kev tiv thaiv rau sab hauv tsev EVSE - tsis muaj kev tiv thaiv xob laim (LPS) - kev nkag mus rau pej xeem

IEC 60364-7-722 xav tau kev tiv thaiv kev tiv thaiv overvoltage rau txhua qhov chaw uas muaj kev nkag mus rau pej xeem. Cov kev cai ib txwm siv los xaiv SPDs tuaj yeem siv tau (Saib tshooj J - Kev tiv thaiv overvoltage).

Daim duab EV30 - Tiv thaiv kev tiv thaiv sab hauv tsev EVSE - tsis muaj kev tiv thaiv xob laim (LPS) - kev nkag mus rau pej xeem

Thaum lub tsev tsis raug tiv thaiv los ntawm kev tiv thaiv hluav taws xob:

Hom 2 SPD xav tau hauv lub ntsiab hluav taws xob qis hloov pauv (MLVS)
Txhua EVSE tau muab nrog cov khoom siv tshwj xeeb.
Yuav tsum muaj hom 2 SPD ntxiv hauv txhua EVSE, tshwj tsis yog tias qhov kev ncua deb ntawm lub vaj huam sib luag loj mus rau EVSE tsawg dua 10m.
Hom 3 SPD kuj tseem pom zoo rau Kev Tswj Xyuas Kev Thauj Khoom (LMS) raws li cov cuab yeej siv hluav taws xob zoo. Hom 3 SPD no yuav tsum tau teeb tsa hauv qab ib hom 2 SPD (uas feem ntau pom zoo lossis xav tau hauv lub rooj hloov qhov uas LMS tau teeb tsa).

Tiv thaiv kev tiv thaiv rau sab hauv tsev EVSE - teeb tsa siv txoj kev tsheb npav - tsis muaj kev tiv thaiv xob laim (LPS) - kev nkag mus rau pej xeem

Qhov piv txwv no zoo ib yam li yav dhau los, tshwj tsis yog tias siv txoj kev tsheb npav (busbar trunking system) siv los faib lub zog rau EVSE.

Daim duab EV31 - Tiv thaiv kev tiv thaiv sab hauv tsev EVSE - tsis muaj kev tiv thaiv hluav taws xob tiv thaiv (LPS) - teeb tsa siv tsheb npav - nkag mus rau pej xeem

Hauv qhov no, raws li qhia hauv daim duab EV31:

Hom 2 SPD xav tau hauv lub ntsiab hluav taws xob qis hloov pauv (MLVS)
EVSEs tau muab los ntawm txoj kev tsheb npav, thiab SPDs (yog tias xav tau) raug teeb tsa sab hauv lub thawv tsheb npav
Yuav tsum muaj hom 2 SPD ntxiv hauv thawj txoj kev tsheb ciav hlau tawm mus rau EVSE (raws li feem ntau qhov nrug mus rau MLVS ntau dua 10m). Cov EVSEs hauv qab no tseem raug tiv thaiv los ntawm SPD no yog tias lawv nyob deb dua 10m
Yog tias hom 2 SPD ntxiv no tau nce <1.25kV (ntawm kuv (8/20) = 5kA), tsis tas yuav ntxiv lwm yam SPD ntawm txoj kev tsheb npav: txhua qhov hauv qab no EVSE raug tiv thaiv.
Hom 3 SPD kuj tseem pom zoo rau Kev Tswj Xyuas Kev Thauj Khoom (LMS) raws li cov cuab yeej siv hluav taws xob zoo. Hom 3 SPD no yuav tsum tau teeb tsa hauv qab ib hom 2 SPD (uas feem ntau pom zoo lossis xav tau hauv lub rooj hloov qhov uas LMS tau teeb tsa).

Kev tiv thaiv kom zoo rau sab hauv tsev EVSE - nrog kev tiv thaiv hluav taws xob (LPS) - kev nkag mus rau pej xeem

Daim duab EV32 - Tiv thaiv kev tiv thaiv sab hauv tsev EVSE - nrog kev tiv thaiv xob laim (LPS) - kev nkag mus rau pej xeem

Thaum lub tsev raug tiv thaiv los ntawm kev tiv thaiv xob laim (LPS):

Hom 1+2 SPD xav tau hauv lub ntsiab hluav taws xob qis hloov pauv (MLVS)
Txhua EVSE tau muab nrog cov khoom siv tshwj xeeb.
Yuav tsum muaj hom 2 SPD ntxiv hauv txhua EVSE, tshwj tsis yog tias qhov kev ncua deb ntawm lub vaj huam sib luag loj mus rau EVSE tsawg dua 10m.
Hom 3 SPD kuj tseem pom zoo rau Kev Tswj Xyuas Kev Thauj Khoom (LMS) raws li cov cuab yeej siv hluav taws xob zoo. Hom 3 SPD no yuav tsum tau teeb tsa hauv qab ib hom 2 SPD (uas feem ntau pom zoo lossis xav tau hauv lub rooj hloov qhov uas LMS tau teeb tsa).

Nco tseg: yog tias koj siv txoj kev tsheb npav rau kev faib khoom, siv cov cai uas tau qhia hauv qhov piv txwv tsis muaj LTS, tshwj tsis yog SPD hauv MLVS = siv Hom 1+2 SPD thiab tsis yog Hom 2, vim yog LPS.

Kev tiv thaiv hluav taws xob rau sab nraum zoov EVSE - tsis muaj kev tiv thaiv xob laim (LPS) - kev nkag mus rau pej xeem

Daim duab EV33 - Tiv thaiv kev tiv thaiv rau sab nraum zoov EVSE - tsis muaj kev tiv thaiv xob laim (LPS) - kev nkag mus rau pej xeem

Hauv qhov piv txwv no:

Hom 2 SPD xav tau hauv lub ntsiab hluav taws xob qis hloov pauv (MLVS)
Yuav tsum muaj hom 2 SPD ntxiv hauv pawg vaj huam sib luag (nrug deb> 10m mus rau MLVS)

Tsis tas li ntawd:

Thaum EVSE txuas nrog lub tsev tsim qauv:
siv lub tsev cov cuab yeej muaj zog sib txuas
yog tias EVSE tsawg dua 10m los ntawm sub-vaj huam sib luag, lossis yog hom 2 SPD teeb tsa hauv lub vaj huam sib luag sub muaj Up <1.25kV (ntawm kuv (8/20) = 5kA), tsis muaj qhov xav tau ntxiv SPDs hauv the EEV

Thaum EVSE tau teeb tsa hauv qhov chaw nres tsheb, thiab muab nrog cov kab hluav taws xob hauv av:

txhua EVSE yuav tsum tau nruab nrog tus pas nrig hauv av.
txhua EVSE yuav tsum txuas nrog lub network muaj peev xwm. Lub network no tseem yuav tsum txuas nrog lub tsev cov khoom siv sib txuas.
nruab ib hom 2 SPD hauv txhua EVSE
Hom 3 SPD kuj tseem pom zoo rau Kev Tswj Xyuas Kev Thauj Khoom (LMS) raws li cov cuab yeej siv hluav taws xob zoo. Hom 3 SPD no yuav tsum tau teeb tsa hauv qab ib hom 2 SPD (uas feem ntau pom zoo lossis xav tau hauv lub rooj hloov qhov uas LMS tau teeb tsa).

Tiv thaiv kev tiv thaiv rau sab nraum zoov EVSE - nrog kev tiv thaiv xob laim (LPS) - kev nkag mus rau pej xeem

Daim duab EV34 - Kev tiv thaiv kom zoo rau sab nraum zoov EVSE - nrog kev tiv thaiv xob laim (LPS) - kev nkag mus rau pej xeem

Lub tsev tseem ceeb yog nruab nrog tus pas nrig (tiv thaiv hluav taws xob) los tiv thaiv lub tsev.

Hauv qhov no:

Hom 1 SPD xav tau hauv lub ntsiab hluav taws xob qis hloov pauv (MLVS)
Yuav tsum muaj hom 2 SPD ntxiv hauv pawg vaj huam sib luag (nrug deb> 10m mus rau MLVS)

Tsis tas li ntawd:

Thaum EVSE txuas nrog lub tsev tsim qauv:

siv lub tsev cov cuab yeej muaj zog sib txuas
yog tias EVSE tsawg dua 10m los ntawm sub-vaj huam sib luag, lossis yog hom 2 SPD teeb tsa hauv lub vaj huam sib luag sub muaj Up <1.25kV (ntawm kuv (8/20) = 5kA), tsis tas yuav ntxiv SPDs ntxiv hauv EVSE

Thaum EVSE tau teeb tsa hauv qhov chaw nres tsheb, thiab muab nrog cov kab hluav taws xob hauv av:

txhua EVSE yuav tsum tau nruab nrog tus pas nrig hauv av.
txhua EVSE yuav tsum txuas nrog lub network muaj peev xwm. Lub network no tseem yuav tsum txuas nrog lub tsev cov khoom siv sib txuas.
nruab ib hom 1+2 SPD hauv txhua EVSE

Hom 3 SPD kuj tseem pom zoo rau Kev Tswj Xyuas Kev Thauj Khoom (LMS) raws li cov cuab yeej siv hluav taws xob zoo. Hom 3 SPD no yuav tsum tau teeb tsa hauv qab ib hom 2 SPD (uas feem ntau pom zoo lossis xav tau hauv lub rooj hloov qhov uas LMS tau teeb tsa).