Chii chinonzi Earth Leakage Circuit Breaker (ELCB) & Kushanda Kwayo

Earar Earth leakage circuit breaker imagetsi ekuona magetsi, ayo ave kuchinjwa neazvino ekunzwa michina (RCD/RCCB). Kazhinji, zvishandiso zvekunzwa zvazvino zvinodaidzwa kuti RCCB, uye magetsi ekuona magetsi anonzi Earth Leakage Circuit Breaker (ELCB). Makore makumi mana apfuura, maECLB ekutanga azvino akaunzwa uye angangoita makore makumi matanhatu apfuura iyo yekutanga voltage ECLB yakaunzwa. Kwemakore akati wandei, ese ari maviri magetsi uye azvino akashanda maELCBs ese ari maviri anonzi maELCBs nekuda kwezita ravo riri nyore kurangarira. Asi mashandisirwo ezvishandiso zviviri izvi zvakapa kukura kune yakakosha musanganiswa-muindasitiri yemagetsi.

Chii chinonzi Earth Leakage Circuit Breaker (ELCB)?

ECLB imwe yemhando yekuchengetedza mudziyo unoshandiswa kuisa mudziyo wemagetsi une high earth impedance kudzivirira kuvhunduka. Midziyo iyi inocherekedza madiki anorasika echigadzirwa chemagetsi pane zvakavharirwa simbi uye anopindira dunhu kana magetsi ane njodzi aonekwa. Chinangwa chikuru cheEarth leakage circuit breaker (ECLB) ndechekumisa kukuvadzwa kwevanhu nemhuka nekuda kwekuvhunduka kwemagetsi.

Iyo ELCB imhando chaiyo yelatching relay ine chimiro chinopinda mains simba chinosanganiswa kuburikidza neayo switching contacts kuitira kuti muparadzi wedunhu avhare simba mune isina kuchengetedzeka. Iyo ELCB inocherekedza kukanganisa mafambiro emunhu kana mhuka kune pasi waya mukubatana kwainochengetedza. Kana simba rakawanda richiita senge pamhiri peiyo ELCB's sense coil, inodzima simba, uye irambe yakadzima kusvika pakugadzirisa patsva. A voltage sensing ELCB haione kutadza kwemhepo kubva kuvanhu kana mhuka kusvika pasi.

Iyo ELCB inocherekedza kukanganisa mafambiro emunhu kana mhuka kune pasi waya mukubatana kwainochengetedza. Kana simba rakawanda richiita senge pamhiri peiyo ELCB's sense coil, inodzima simba, uye irambe yakadzima kusvika pakugadzirisa patsva. A voltage sensing ELCB haione kutadza kwemhepo kubva kuvanhu kana mhuka kusvika pasi.

Iyo ELCB inocherekedza kukanganisa mafambiro emunhu kana mhuka kune pasi waya mukubatana kwainochengetedza. Kana simba rakawanda richiita senge pamhiri peiyo ELCB's sense coil, inodzima simba, uye irambe yakadzima kusvika pakugadzirisa patsva. A voltage sensing ELCB haione kutadza kwemhepo kubva kuvanhu kana mhuka kusvika pasi.

ELCB Basa

Basa guru reEarth-leakage circuit breaker kana ELCB nderokudzivirira kuvhunduka uku kuiswa kwemagetsi kuburikidza nepamusoro pePasi impedance nekuti mudziyo wekuchengetedza. Iyi yedunhu inotyora inozivisa madiki mavhiriji ari pamusoro pemidziyo yemagetsi ine simbi yakavharirwa & inovhiringa dunhu kana magetsi ane njodzi akaonekwa. Chinangwa chikuru cheELCBs ndechekudzivirira kukuvadza kuvanhu pamwe nemhuka nekuda kwekuvhunduka kwemagetsi.

ELCB Operation
Yemagetsi wedunhu rekutyora imwe mhando yelatching relay uye ine mains inopihwa yezvivakwa yakabatana mukati mekuchinja kwayo macontacts kuitira kuti ichi chinopaza chedunhu chibvise simba kana pasi panobuda. Nokushandisa izvi, ikozvino kukanganisa kunogona kuonekwa kubva kuhupenyu kusvika kune pasi waya mukugadzirisa iyo inorinda. Kana yakakwana voltage ichibuda nepakati pepfungwa coil yedunhu rinopaza, ipapo inovhara simba & irambe yakadzimwa kusvika muviri wagadzika. Iyo ELCB iyo inoshandiswa pakunzwa-voltage haione kutadza kuri kuita mafairi.

Maitiro ekubatanidza Earth Leakage Circuit Breaker

Dunhu repasi rinogadziriswa kana ELCB inoshandiswa; iyo yekubatanidza kune yevhu tsvimbo inogamuchirwa kuburikidza nepasi leakage circuit breaker nekubatanidza kune ayo maviri epasi materminal. Imwe inoenda kune yakakodzera nyika yedunhu inodzivirira conductor (CPC), uye imwe kune yepasi tsvimbo kana imwe mhando yekubatana kwepasi. Saka dunhu repasi rinobvumira kuburikidza neELCB's sense coil.

Zvakanakira Voltage Inoshanda ELCB

ELCBs haanyanyi kunzwa kune mhosva uye ane mashoma nzendo dzinonetsa.
Nepo zvazvino uye voltage pamutsara wepasi kazhinji inokanganisa ikozvino kubva pawaya mhenyu, izvi hazvisi izvo zvinogara zvakadaro, saka pane mamiriro ayo ELCB inogona kutsamwisa rwendo.
Kana kuiswa kwechiridzwa chemagetsi kuine maviri anobatika pasi, padhuze nemheni yakakwira ikozvino inodzika voltage gradient pasi, ichipa iyo ELCB pfungwa coil ine voltage yakakwana kuti isvike parwendo.
Kana imwe yewaya yevhu ikavharirwa kubva kuELCB, haichazoisike kazhinji haichave yakanyungudika.
Aya ma ELCB ndiwo anodiwa kwekubatanidza kechipiri uye mukana wekuti chero yekuwedzera yekubatanidza pasi pane yakatyisidzirwa system inogona kumisa detector.