La 13 Loetse 2021, Hlahloba molao-motheo oa ho sebetsa oali-circuit breakers tsa mofuta oa lebokose
Li-Circuit breakers hangata li entsoe ka sistimi ea ho ikopanya, sistimi ea ho tima arc, mochini o sebetsang, yuniti ea maeto, khetla joalo-joalo.
Ha potoloho e khuts'oane e etsahala, matla a khoheli a hlahisoang ke matla a maholo (ka kakaretso a 10 ho isa ho makhetlo a 12) a hlola matla a karabelo ea selemo, karolo ea leeto e hula mochini o sebetsang, 'me switch e tsamaea hang-hang.Ha e imetsoe, hona joale e ba kholoanyane, moloko oa mocheso oa eketseha, 'me bimetal e holofala ho isa tekanyong e itseng ho sutumelletsa mochine hore o tsamaee (e kholoanyane hona joale, nako e khutšoanyane ea ketso).
Ho na le mofuta oa elektronike o sebelisang transformer ho bokella hona joale oa mohato ka mong le ho o bapisa le boleng bo behiloeng.Ha hona joale e sa tloaeleha, microprocessor e romela letšoao ho etsa hore yuniti ea leeto la elektronike e khanne mochine o sebetsang.
Mosebetsi oa potoloho ea potoloho ke ho khaola le ho hokahanya potoloho ea mojaro, hammoho le ho khaola potoloho ea phoso, ho thibela ho atolosoa ha kotsi le ho netefatsa ts'ebetso e sireletsehileng.Mochine o motlakase oa motlakase o phahameng o hloka ho senya 1500V, 1500-2000A arc ea hona joale, li-arcs tsena li ka otlolloa ho 2m 'me li ntse li tsoela pele ho tuka ntle le ho tima.Ka hona, ho tima li-arc ke bothata bo lokelang ho rarolloa ke li-circuit breakers tse nang le matla a phahameng.
Molao-motheo oa ho letsa arc le ho tima arc ke haholo-holo ho pholisa arc ho fokolisa karohano ea mocheso.Ka lehlakoreng le leng, arc e otlolloa ke arc ho matlafatsa ho kopanngoa le ho hasana ha likaroloana tse qosoang, 'me ka nako e ts'oanang, likaroloana tse qosoang ka lekhalo la arc li phunyeletsoa ho tsosolosa kapele matla a dielectric a mahareng.
Li-circuits tsa "low-voltage circuit breakers" li boetse li bitsoa li-switches tsa moea tse itekanetseng, tse ka sebelisoang ho hokahanya le ho senya lipotoloho tsa mojaro, hape li ka sebelisoa ho laola li-motor tse qalang hangata.Mosebetsi oa eona o lekana le kakaretso ea tse ling kapa mesebetsi eohle ea li-switches tsa thipa, li-relay tse fetang nako e telele, li-relay tsa tahlehelo ea motlakase, li-relay tsa mocheso le li sireletsang ho lutla.Ke sesebelisoa sa bohlokoa sa motlakase se sireletsang marang-rang a phano ea motlakase o tlase.
Li-circuits tsa "low-voltage" li na le mefuta e fapaneng ea ts'ebetso ea ts'ireletso (moroalo o mongata, potoloho e khuts'oane, ts'ireletso ea undervoltage, joalo-joalo), boleng ba ketso bo feto-fetohang, matla a phahameng a ho robeha, ts'ebetso e bonolo, polokeho, joalo-joalo, kahoo li sebelisoa haholo.Sebopeho le molao-motheo oa ho sebetsa Motlakase oa motlakase o tlaase o entsoe ka mochine o sebetsang, mabitso, lisebelisoa tsa tšireletso (lihlahisoa tse sa tšoaneng), tsamaiso ea ho tima arc, joalo-joalo.
Khokahano e kholo ea sekhechana sa motlakase se tlase se sebelisoa ka letsoho kapa se koetsoe ka motlakase.Ka mor'a hore puisano e kholo e koetsoe, mochine oa leeto la mahala o notlela motho ea ka sehloohong sebakeng sa ho koala.Coil ea ho lokolloa ha overcurrent le karolo ea mocheso ea ho lokolloa ha mocheso li kopantsoe ka letoto le potoloho e kholo, 'me coil ea ho lokolloa ha undervoltage e kopantsoe ka tsela e tšoanang le matla a matla.Ha potoloho e khuts'oane kapa e imetsoe ka matla haholo, sehlomo sa ho lokolloa ha overcurrent se hula, se etsa hore mochine oa mahala oa ho tsamaea o sebetse, 'me motlatsi oa sehlooho o khaola potoloho e kholo.Ha potoloho e imetsoe haholo, karolo ea ho futhumatsa ea yuniti ea leeto la mocheso e tla koba bimetal ebe e sutumelletsa mochine oa leeto la mahala hore o tsamaee.Ha potoloho e le tlase-voltage, armature ea under-voltage release e lokolloa.Mokhoa oa ho etela mahala o boetse o kentsoe tšebetsong.Tokollo ea shunt e sebelisetsoa taolo e hole.Nakong ea ts'ebetso e tloaelehileng, coil ea eona e khaoloa.Ha ho hlokahala taolo ea sebaka, tobetsa konopo ea ho qala ho matlafatsa khoele.
Nako ea poso: Sep-13-2021
