Ungayikhetha njani i-circuit breaker efanelekileyo kwii-EV Chargers?

Ungayikhetha njani i-circuit breaker efanelekileyo kwii-EV Chargers?

Njengengcali yeziseko zokutshaja ze-EV, i-CHINAEVSE iya kukuvuyela ukukukhokela kwinkqubo yokukhetha nokufaka i-circuit breaker yokufakela izixhobo zombane (i-EVSE).

Ukufakela i-circuit breaker efanelekileyo yenye yezona nyathelo zibalulekileyo ekuseteni isikhululo sokutshaja se-EV. Kuba ukutshaja kwe-EV kuthathwa njengentoumthwalo oqhubekayo(itsala umbane ophezulu iiyure ezininzi ngexesha), imithetho eqhelekileyo yombane yokuhlala okanye yorhwebo kufuneka isetyenziswe ngokungqongqo ukuthintela ubushushu obugqithisileyo, ukukhubeka kwiingxaki, okanye iingozi zomlilo.

Nantsi isikhokelo esibanzi malunga nezinto eziqwalaselwayo kwezobuchwepheshe, imigangatho yokhuseleko, kunye neendlela ezilungileyo zokufakela i-EVSE circuit breaker.

1. Umthetho we-125% (Ukubalwa komthwalo okuqhubekayo)

Ngokungafaniyo nezixhobo zasekhaya ezisebenza ngamaxesha athile (njenge-microwave okanye i-toaster), i-Itshaja ye-EVisebenza ngamandla aphezulu kangangexesha elide.

• Umthetho:Phantsi kweKhowudi yoMbane yeSizwe (i-NEC) kunye ne-IEC equivalents, kufuneka ubeke ubungakanani be-circuit breaker kunye nee-conductors kwiI-125% yemveliso ephezulu eqhubekayo yetshaja ye-EV.
• Izibalo:Ukuba ibhokisi yakho yodonga ye-EV iphuma32A, ubalo lobungakanani bomphuli lulandelayo:

Ngoko ke, kufuneka ufake iIsixhobo sokwaphula iisekethe se-40A.

Itheyibhile yokuBhekisela ubungakanani beCommon Breaker

2. Ukukhetha Uhlobo Olufanelekileyo Lokuqhekeza

Ngokuxhomekeke kwimigangatho yakho yengingqi (i-North American NEC vs. International/European IEC), iimfuno zeentlobo zokhuseleko ziya kwahluka.

A. Ukhuseleko lweMpazamo yangoku eseleyo kunye neGround Fault (RCD / GFCI)

Ukutshaja kwe-EV kubeka imingcipheko ekhethekileyo malunga nokuvuza kwe-DC fault current, okunokuthi "kufihle" izixhobo zamandla ezisele zohlobo A eziqhelekileyo.

• IiMarike ze-IEC (eYurophu/eOstreliya/eAsia):Ukuba i-EVSE ayinayo i-6mA DC efunyenweyo yokuvuza, wenakufunekasebenzisaUhlobo B RCDokanye i-RCBO (Residual Current Breaker enokhuselo lwe-Overcurrent) ebona iimpazamo ze-AC kunye ne-DC. Ukuba i-EVSEingabaine-6mA DC detection edibeneyo, umgangatho oqhelekileyoUhlobo A lwe-RCDkudla ngokwanela.
• IiMarike ze-NEC (eMntla Melika):Uninzi lwee-EVSE zanamhlanje zeNqanaba lesi-2 zine-CCID50 (Personnel Protection) ground-fault protection eyakhelwe ngaphakathi. Nangona kunjalo, ukuba ufaka i-Faka iplagiI-EVSE (umzekelo, i-NEMA 14-50 okanye i-6-50 yokuphuma), i-NEC 2020/2023 ifunaIsiphuli se-GFCIkwiphaneli yeso sithintelo, nokuba itshaja inokhuselo lwayo lwangaphakathi.

B. Iikhribhu zohambo lwe-Circuit Breaker (IEC)

Ukuba usebenza phantsi kwemigangatho ye-IEC, ukukhetha i-trip curve echanekileyo kuthintela ukukhubeka kwingxaki kwi-inrush current yokuqala xa i-EV iqala ukutshaja:

• Ijika lohlobo C:Icetyiswa kakhulu kwiifektri ze-EVSE. Iphatha imisinga yokungenisa umoya ephucukileyo ngaphandle kokukhubeka ngaphambi kwexesha.
• Ziphephe ii-Type B curves ngaphandle kokuba zichazwe ziikhowudi zasekuhlaleni, njengoko zinokukhubeka lula xa kukho imithwalo ephezulu eqhubekayo.

3. Izinto ezibalulekileyo ekufuneka uziqwalasele xa ufakelwa

Ubungakanani beWire kunye nokuCinywa kobushushu

Isixhobo sokuqhekeza sisebenza kakuhle kuphela xa ucingo oluqhagamshelwe kuso. Ngenxa yomthwalo oqhubekayo, qinisekisa ukuba igeyiji yentambo (AWG okanye mm2) ihambelana nobukhulu besixhobo sokuqhekeza.emvaokubangela ukuqhekeka kobushushu xa iingcingo zidlula kwiindawo ezishushu (ezifana neattics) okanye kwiindlela zokwabelana.

• Umzekelo:Kwisixhobo sokwaphula i-50A,Ucingo lobhedu lwe-AWG olu-6iqhelekile. Ungaze uyithintele i-high-amp breaker ene-wire encinci.

Iinkcukacha zeTorque

Uqhagamshelo olukhululekileyo lolona bangela luphambili lomlilo wombane kwiisetingi ze-EV. Xa kuqhubeka nomthwalo, iiterminals ezikhululekileyo zenza ukumelana okuphezulu, nto leyo ekhokelela ekukhuleni kobushushu obugqithisileyo obunokunyibilikisa i-breaker kunye ne-panel busbar.

• Soloko usebenzisa isikrufu/isikrufu se-torque esilungisiweyoukuqinisa ii-breaker lugs ngokweemfuno zomenzi (ezidla ngokuprintwa ecaleni kwe-breaker).

Umthamo wePaneli kunye nobushushu beNdawo

• Ukubalwa koMthwalo:Ngaphambi kokuba wongeze i-40A okanye i-60A breaker, yenza ubalo lomthwalo kwiphaneli/kwipropathi ekhoyo ukuqinisekisa ukuba inkonzo ephambili inokusingatha umthwalo owongezelelweyo oqhubekayo.
• Ukutshatyalaliswa kobushushu:Ukuba ufaka ii-EV breakers ezininzi ecaleni kwelinye kwibhodi yokusasaza yezorhwebo, cinga ngokushiya indawo engenanto phakathi kwazo ukuze kuvumeleke ukuhamba komoya okungcono kunye nokuchithwa kobushushu.

4. Uluhlu lokujonga uFakelo loBungcali

1. Iimvume kunye neMigqaliselo:Soloko ujonga ukuthotyelwa kwemithetho yendawo (umz., iNqaku le-NEC 625, i-IEC 60364-7-722) uze utsale iimvume zombane ezifunekayo.
2. I-Hardwared vs. I-Plug-in:Ukufakelwa kwee-hardwires kukhethwa kakhulu ngenxa yokuthembeka okuphezulu kwaye kususa isidingo se-external GFCI breaker ebizayo kwiindawo ezininzi.
3. Iilebheli:Bhala ngokucacileyo i-breaker kwiphaneli ephambili ngokuthi “I-EV CHARGER” ukuqinisekisa ukuba iyabonakala ngokukhawuleza ngexesha lokulungiswa.
4. Uvavanyo Emva Kokufakwa:SebenzisaI-EVSEiadaptha yokuvavanya ukulinganisa uqhagamshelo lwesithuthi kunye nokuvavanya ukusebenza kohambo lweRCD/GFCI ngaphambi kokuba uyinike umsebenzisi wokugqibela.