Kugwiritsa ntchito ASJ Residual Current Relay mu Project Jenereta Set ku Maldives

1.Chidule cha polojekiti

Ntchitoyi ili ku Maldives. Cholinga cha relay yotsalira yomwe yaikidwa ndikuwona mphamvu yotsalira ndikuyerekeza mtengo wotsalira ndi mtengo wapansi. Mtengo wotsalira ukadutsa mtengo woyambira, umatumiza chizindikiro chozimitsa (kupangitsa kuti makina osinthira agwedezeke kapena chipangizo cha alamu cha acousto-optic chitumize alamu). Kupatsirana kwamakono kotsalira nthawi zambiri kumakhala ndi otsika voteji wosweka kapena otsika voteji cholumikizira, ndi zina zophatikizira zotsalira zachitetezo chapano, zomwe zimagwiritsidwa ntchito pa ac 50 hz, voliyumu yovotera 400 v ndi pansi pa TT ndi TN system yogawa dera, yomwe imagwiritsidwa ntchito pochepetsa chitetezo chamagetsi, kupewa kuwonongeka kwa zida zomwe zimachitika chifukwa cha vuto lapano ndi magetsi. ngozi yamoto, komanso angagwiritsidwe ntchito kupereka kukhudzana mosalunjika kwa munthu kupeza chitetezo mantha mantha ngozi chitetezo, choncho chimagwiritsidwa ntchito otsika voteji magetsi ndi dongosolo kugawa.

2.Main ntchito zotsalira zamakono relay

2.1 Kutetezedwa kwa Kulumikizana Mwachindunji Kugwedezeka Kwamagetsi

Muyeso wachitetezo chachitetezo chachitetezo chamagetsi ndikudula zokha magetsi. GB 13955 "chitetezo cha kukhudzana ndi ngozi yamagetsi yamagetsi" imati: "muyeso waukulu wachitetezo cha ngozi yangozi yamagetsi ndikutengera njira yodzitetezera yokhayokha kuti mupewe kuwonongeka kwa ngozi chifukwa cha kuwonongeka kwa magetsi. Zida zikawonongeka chifukwa cha kulephera kwapadziko lapansi. Malinga ndi kafukufukuyu, mtengo wotetezeka wamagetsi olumikizana ndi 50V. Pachitetezo chaumwini, kulephera kwa kutchinjiriza kumachitika m'gawo lililonse la chipangizo chamagetsi, mphamvu yolumikizana ikadutsa 50V, ndikofunikira kuti mudulire gawo lolakwika lamagetsi mkati mwa nthawi yodziwika. Chipangizo chachitetezo chopitilira pano chili ndi malire ndi dera lamagetsi ndi zida ndi mtengo wake wochitapo kanthu, ndipo sichingathe kuzimitsa magetsi. Chida chotsalira chachitetezo chamakono sichimakhudzidwa ndi katundu wamakono ndipo chitha kugwiritsidwa ntchito molumikizana ndi chipangizo chachitetezo chanthawi yayitali chokhudzana ndi chitetezo champhamvu chamagetsi.

2.2 Kutetezedwa kwapadziko lapansi

Kuyika pansi ndiko kulumikizana pakati pa kondakita wamoyo ndi dziko lapansi, chigoba chachitsulo chokhazikika kapena chigawo cholumikizidwa pansi. Kulephera kwake kungayambitse kuwonongeka kwa magetsi ndi kuwonongeka kwa zipangizo, ndipo kungayambitse moto wamagetsi pazochitika zazikulu. Chitetezo cha pansi chomwe chimagwiritsidwa ntchito kutetezedwa ndi chipangizo chachitetezo chopitilira apo. Pamene vuto lapansi ndilokulirapo kuposa mtengo wokhazikika wa chipangizo chachitetezo chamakono, dera lolakwika limadulidwa ndi chipangizo chachitetezo chamakono.

Mu dongosolo la TT, mzere wokhala ndi chingwe chokulirapo komanso chogawa chautali, cholakwika chokhazikika cha kondakitala wamoyo, chitsulo chosatetezedwa chachitsulo ndi arc grounding arc mu TN system zitha kuchitika kuti vuto lokhazikika ndilocheperako poyerekeza ndi momwe chitetezo chapano chimakhalira. kanthu, ndipo chipangizo chachitetezo chopitilira pano sichichitapo kanthu. Chipangizo chotsalira chachitetezo chapano, kapena chotchinga chotchinga chokhala ndi chitetezo chapansi, chingathe kutetezedwa modalirika.

2.3 Chitetezo pamoto wamagetsi

Moto wamagetsi nthawi zambiri umayamba chifukwa cha njira yachidule yamagetsi, yomwe imaphatikizapo zitsulo zazifupi ndi arc short circuit. Yoyamba ndi kagawo kakang'ono pakati pa ma conductor amoyo (monga pakati pa magawo, pakati pa magawo ndi mizere ya N). Kulakwitsa kwapano kumawerengedwa mu kilo ampere. Kutentha kwambiri ndikosavuta kuyambitsa kutchinjiriza oxidation ndi kuyaka modzidzimutsa.

Ngakhale kuti ngozi yamoto ndi yayikulu, imatha kutetezedwa ndi zowononga madera ndi ma fuse okhala ndi chitetezo chaching'ono, ndipo magetsi amadulidwa ndikuchitapo nthawi yomweyo kwa wowononga dera kuti apewe moto. Chotsatiracho ndi chowongolera chachifupi chozungulira pansi, makamaka arc ngati njira, ngakhale kuti vuto lamakono ndi laling'ono, koma mbali imodzi, arc imakhala kwa nthawi yaitali, kutentha kwapafupi kumakhala kwakukulu, ndikosavuta kuyatsa. zinthu zoyaka zozungulira ndi kuyambitsa moto. Chifukwa chake, ngozi yamoto yomwe imabwera chifukwa chafupipafupi ya arc ndi yayikulu kuposa yachitsulo chachifupi. Wowononga dera wokhala ndi ntchito yotsalira yachitetezo chapano amatha kudula gawo lothandizira popanda kugwiritsa ntchito chipangizo chachitetezo chanthawi yayitali kuti ateteze moto wamagetsi chifukwa cha arc yochepa.

3.ASJ Series of Residual Current Relay

3.1 Model & Ntchito

3.2 Magawo aukadaulo

3.3 Chiyembekezo Choyimira Ntchito

4.Zithunzi za kuyika kwa relay yotsalira pakali pano pa jenereta yokhazikitsa malo a polojekiti

5.Chidule

Acrel ASJ mndandanda wa zotsalira zotsalira zapano zakhala zikugwiritsidwa ntchito nthawi zambiri, monga mafakitale, boma, sitima zapansi panthaka, nyumba zanzeru ndi zina zotero, zomwe zakhala zikugwira ntchito zoteteza ndipo ndizoyenera kugwiritsa ntchito malonda.