GBT 18487.1-2015 e hlalosa poleloana e reng "Residual current protector" (RCD) ke sesebelisoa sa mochine kapa motsoako oa lisebelisoa tsa motlakase tse khonang ho bulela, ho tsamaisa le ho senya hona joale tlas'a maemo a tloaelehileng a ts'ebetso, hammoho le ho khaola likhokahano ha li ntse li sebetsa. nako e setseng e fihla ho boleng bo boletsoeng.Ke switchgear ea mochini kapa motsoako oa lisebelisoa tsa motlakase tse ka bulelang, ho jara le ho senya hona joale tlas'a maemo a tloaelehileng a ts'ebetso le tse ka senyang likhokahano ha motlakase o setseng o fihla boleng bo boletsoeng tlasa maemo a boletsoeng.
Mefuta e fapaneng ea mosireletsi oa hona joale oa masala a fumaneha bakeng sa maemo a fapaneng a ts'ireletso mme mofuta o nepahetseng oa ts'ireletso ea hajoale o lokela ho khethoa bakeng sa boemo bo lokelang ho sireletsoa.
Ho latela mofuta o tloaelehileng oa masala a hajoale a nang le likarolo tsa ts'ebetso ea karolo ea DC, basireletsi ba hajoale ba arotsoe ka mefuta ea AC e sirelletsang masala, Basireletsi ba hajoale ba mofuta oa F, le basireletsi ba hajoale ba mofuta oa B.Mesebetsi ea bona ka ho fapana ke e latelang.
Mofuta oa AC o setseng oa mosireletsi oa hona joale: sinusoidal AC residual current.
Mofuta oa mosireletsi oa hona joale oa mofuta oa A: Ts'ebetso ea mofuta oa AC, e otlang masala a masala a DC, masala a masala a DC a phahametseng 6mA ea boreleli ea DC hajoale.
Mofuta oa F oa mosireletsi oa hona joale: Mofuta oa A, motsoako o setseng oa motlakase ho tloha ho lipotoloho tse tsamaisoang ke li-conductors tsa mohato le tse sa nke lehlakore kapa tsa mohato le tsa lefats'e, tse ntseng li phunya masala a DC a phahametseng motlakase o boreleli oa DC oa 10mA.
Mofuta oa B oa mosireletsi oa hona joale: Mofuta oa F, sinusoidal AC residual current ho 1000Hz le ka tlase, AC residual current e phahame ka makhetlo a 0.4 ho feta 10mA boreleli ea DC ea hona joale (ho sa tsotellehe hore na ke efe e kholoanyane), e otlang masala a DC a holimo ka makhetlo a 0.4 ho feta makhetlo a 0.4 rated residual action current kapa 10mA smooth DC current (ho sa tsotellehe hore na ke efe e kholoanyane), DC residual current ho tloha lipotolohong tse lokisitsoeng, boreleli bo setseng ba DC.
Mehaho ea motheo ea EV on-board charger ka kakaretso e kenyelletsa ho hloekisa EMI bakeng sa karolo ea ho kenya letsoho, ho lokisoa le PFC, potoloho ea matla a ho fetola matla, EMI filter bakeng sa karolo ea tlhahiso, joalo-joalo Lebokose le khubelu setšoantšong se ka tlase se bontša matla a mabeli. potoloho ea tokiso e nang le transformer ea ho itšehla thajana, moo Lg1, lg2 le li-capacitor tse thusang li theha filthara ea EMI, L1, C1, D1, C3, Q5 e theha mofuta oa mohato o ka pele oa potoloho ea PFC, Q1, Q2, Q3, Q4, T1 , D2, D3, D4, D5 theha potoloho ea matla a ho sokoloha sethaleng se ka morao, Lg3, lg4 le li-capacitor tse thusang li theha sehlahisoa sa EMI se hlahisang ho fokotsa boleng ba ripple.
Nakong ea ts'ebeliso ea koloi, ho tla ba le maqhutsu le ho thothomela, botsofali ba sesebelisoa le mathata a mang a ka etsang hore ho kenella ka har'a tjhaja ea koloi ho be le bothata, e le hore tjhaja ea koloi e le ts'ebetsong ea ho tjhaja AC libakeng tse fapaneng tsa tlhahlobo ea mokhoa oa ho hloleha. e ka fumanoa ka mekhoa e latelang ea ho hlōleha.
(1) phoso ea fatše ka lehlakoreng la AC la ho kenya marang-rang a masepala, moo phoso ea hona joale e leng maqhubu a indasteri ea AC hona joale.
(2) Phoso ea fatše karolong ea rectifier, moo phoso ea hona joale e hlahisang DC hona joale.
(3) DC / DC fatše phoso ka mahlakoreng a mabeli, ha phoso hona joale e boreleli DC hona joale.
(4) ho itšehla thajana transformer fatše phoso, phoso hona joale ke bao e seng khafetsa AC hona joale.
Ho tsoa ho ts'ebetso ea ts'ireletso ea mosireletsi oa mofuta oa A e ka tsejoa, e ka sireletsa ts'ebetso ea mofuta oa AC, ho phunya masala a DC, masala a masala a DC a phahame ka tlase ho 6mA boreleli ba DC hajoale, le tjhaja ea koloi ea DC fault ea hajoale ≥ 6mA, mofuta mosireletsi ea setseng a ka 'na a bonahala a le hysteresis kapa a ke ke a sebetsa, a fella ka mosebetsi o tloaelehileng, joale mosireletsi ea setseng o tla lahleheloa ke mosebetsi oa tšireletso.
Tekanyetso ea Europe ea IEC 61851 ha e fane ka taelo ea mofuta oa B, empa bakeng sa li-EVSE tse nang le basireletsi ba morao-rao ba mofuta oa A, hoa hlokahala ho netefatsa hore potoloho ea liphoso e nang le litaba tsa DC tse fetang 6mA e khaotsoe, e le 'ngoe kapa e' ngoe.Ho kopantsoe le tlhahlobo ea khetho ea mosireletsi ea ka holimo, ho hlakile hore haeba ts'ireletso ea phoso e ka holimo e lokela ho finyelloa, ho tloha sebakeng sa tšireletso, ho hlokahala mosireletsi oa mofuta oa B.
Nako ea poso: Jan-20-2022
