GBT 18487.1-2015 imatanthawuza mawu oti chitetezo chotsalira chapano motere: Residual current protector (RCD) ndi chosinthira chamakina kapena kuphatikiza zida zamagetsi zomwe zimatha kuyatsa, kunyamula ndikuswa zomwe zili mkati momwe zimagwirira ntchito, komanso kutulutsa zolumikizirana zikachitika. mphamvu yotsalira imafika pamtengo wotchulidwa.Ndi makina osinthira kapena kuphatikiza kwa zida zamagetsi zomwe zimatha kuyatsa, kunyamula ndi kusweka pakali pano pansi pazikhalidwe zomwe zimagwira ntchito bwino ndipo zimatha kuswa zolumikizirana pomwe chotsaliracho chikafika pamtengo womwe watchulidwa pamikhalidwe yodziwika.
Mitundu yosiyanasiyana yachitetezo chapano yotsalira ilipo paziwonetsero zosiyanasiyana zachitetezo ndipo mtundu woyenera wachitetezo chapano chotsalira uyenera kusankhidwa kuti chochitikacho chitetezedwe.
Malinga ndi gulu lazotsalira zapano zomwe zili ndi zinthu za DC, zoteteza zomwe zatsala pano zimagawidwa m'magulu otsalira amtundu wa AC, oteteza apano amtundu wa A, oteteza apano amtundu wa F ndi otsalira apano amtundu wa B.Ntchito zawo ndi izi.
Mtundu wa AC wotsalira wapano woteteza: sinusoidal AC yotsalira pano.
Mtundu A wotsalira wamakono wotetezera: AC mtundu wa ntchito, pulsating DC yotsalira panopa, pulsating DC yotsalira panopa pamwamba pa 6mA ya yosalala DC panopa.
Mtundu F wotsalira wapano woteteza: Mtundu A, wotsalira wapano kuchokera ku mabwalo oyendetsedwa ndi gawo ndi osalowerera ndale kapena gawo ndi ma conductor apakatikati apansi, otsitsimula otsalira a DC omwe ali pamwamba pa DC yosalala ya 10mA.
Mtundu B wotsalira wapano: Mtundu F, sinusoidal AC yotsalira pa 1000Hz ndi pansi, AC yotsalirayo imakhala pamwamba pa 0.4 nthawi yotsalira yotsalira panopa kapena 10mA yosalala ya DC yamakono (chilichonse chachikulu), chotsalira cha DC chotsalira chomwe chili pamwamba pa 0.4 nthawi adavotera zotsalira zomwe zikuchitika pano kapena 10mA yosalala ya DC yapano (chilichonse chomwe chili chachikulu), DC yotsalira yapano kuchokera kumabwalo okonzedwanso, osalala a DC otsalira apano.
Zomangamanga za EV pa board charger nthawi zambiri zimaphatikizapo kusefa kwa EMI kwa gawo lolowera, kukonzanso ndi PFC, kutembenuka kwamagetsi, fyuluta ya EMI ya gawo lotulutsa, ndi zina. Bokosi lofiira pachithunzichi pansipa likuwonetsa mphamvu zamagawo awiri. Kuwongolera dera ndi chosinthira chodzipatula, pomwe Lg1, lg2 ndi ma capacitor othandizira amapanga zosefera za EMI, L1, C1, D1, C3, Q5 kupanga mtundu wowonjezera Gawo lakutsogolo PFC, Q1, Q2, Q3, Q4, T1 , D2, D3, D4, D5 kupanga mphamvu kutembenuka dera la siteji kumbuyo, Lg3, lg4 ndi capacitors wothandiza kupanga linanena bungwe EMI fyuluta kuchepetsa ripple mtengo.
Mukamagwiritsa ntchito galimotoyo, padzakhala mabampu ndi kugwedezeka, kukalamba kwa chipangizo ndi zovuta zina zomwe zingapangitse kuti kutsekeka mkati mwa chojambulira chagalimoto kukhala kovuta, kotero kuti chojambulira chagalimoto mumayendedwe a AC kulipiritsa m'malo osiyanasiyana osanthula njira yolephera. angapezeke motere kulephera modes.
(1) cholakwika chapansi pa mbali ya AC ya kulowetsa kwa netiweki yamatauni, pomwe vuto lomwe lilipo ndi ma frequency a mafakitale a AC.
(2) Kulakwitsa kwapansi mu gawo lokonzanso, pomwe cholakwika chikugwedeza DC.
(3) DC / DC pansi cholakwika mbali zonse, pamene cholakwika panopa ndi yosalala DC panopa.
(4) kudzipatula thiransifoma pansi cholakwika, cholakwika panopa si pafupipafupi AC panopa.
Kuchokera pachitetezo chamtundu wa A chotsalira chachitetezo chodziwikiratu, chimatha kudziwika, chimatha kuteteza mawonekedwe amtundu wa AC, kutulutsa kotsalira kwa DC, kusuntha kotsalira kwa DC komwe kumapitilira 6mA yosalala ya DC yapano, ndi charger yamoto DC yolakwika ≥ 6mA, mtundu otsalira panopa mtetezi angaoneke hysteresis kapena sadzachitapo kanthu, chifukwa ntchito yachibadwa, ndiye otsalira panopa mtetezi adzataya ntchito chitetezo.
Muyezo waku Europe wa IEC 61851 sulamula Mtundu B, koma kwa ma EVSE okhala ndi oteteza apano a Type A, ndikofunikira kuwonetsetsa kuti dera lolakwika lomwe lili ndi DC yoposa 6mA lidulidwe, imodzi kapena imzake.Kuphatikizana ndi kusanthula kwazomwe zili pamwambazi zotsalira zotsalira, zikuwonekeratu kuti ngati chitetezo chapamwambachi chiyenera kukumana, kuchokera kumalo otetezeka, mtundu wa B wotsalira wotetezera panopa ukufunika.
Nthawi yotumiza: Jan-20-2022
