{"id":33387,"date":"2019-10-31T21:52:18","date_gmt":"2019-10-31T18:52:18","guid":{"rendered":"https:\/\/prohoster.info\/blog\/sistema-dugovoj-zashhity-s-vozmozhnostyu-srabatyvaniya-po-tokovomu-signalu\/"},"modified":"2019-10-31T21:52:18","modified_gmt":"2019-10-31T18:52:18","slug":"sistema-dugovoj-zashhity-s-vozmozhnostyu-srabatyvaniya-po-tokovomu-signalu","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/news\/sistema-dugovoj-zashhity-s-vozmozhnostyu-srabatyvaniya-po-tokovomu-signalu","title":{"rendered":"Kaarekaitses\u00fcsteem, mille aktiveerimine toimub voolusignali j\u00e4rgi","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><img decoding=\"async\" alt=\"Kaarekaitses\u00fcsteem, mille aktiveerimine toimub voolusignali j\u00e4rgi\" src=\"\/wp-content\/uploads\/2019\/05\/07bfb9a07736ce2f9f9d17ef429b1d67.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nTraditsioonilises m\u00f5ttes on kaarcis\u00fcsteem Venemaal kiire reageeringuga kaitse l\u00fchiselituste eest, mis p\u00f5hineb avatud elektrikaare valgusspetra registreerimisel KRU-s. K\u00f5ige levinum meetod valgustuse spektri registreerimiseks on kiudoptilised andurid, mida peamiselt rakendatakse t\u00f6\u00f6stussektoris. Kuid uute kaarkaitse toodete ilmumisega elamussektoris, nimelt modulaarsete AFDD-dega, mis t\u00f6\u00f6tavad vooluteate p\u00f5hjal ja v\u00f5imaldavad installida kaarkaitse v\u00e4ljaminevatesse juhtmetesse, sealhulgas jaotuskarbid, kaablid, \u00fchendused, pistikud jne, kasvab selle teema vastu huvi.<br \/>\n<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><br \/>\n<img decoding=\"async\" alt=\"Kaarekaitses\u00fcsteem, mille aktiveerimine toimub voolusignali j\u00e4rgi\" src=\"\/wp-content\/uploads\/2019\/05\/f35ab8d139903844857910e809d4c981.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nKuid tootjad ei kiida heaks modulaarsete toodete \u00fcksikasjalikku ja t\u00e4pset \u00fclesehitust (kui kellelgi on selle kohta teavet, oleksin t\u00e4nulik viidete eest), teistpidi on t\u00f6\u00f6stussektori kaarkaitses\u00fcsteemidega kaasas \u00fcksikasjalik kasutusjuhend, mis koosneb 122 lehek\u00fcljest ja kus on p\u00f5hjalikult kirjeldatud t\u00f6\u00f6p\u00f5him\u00f5tet.<\/p>\n<p>V\u00f5tame n\u00e4iteks Schneider Electricu kaarkaitses\u00fcsteemi VAMP 321, mis sisaldab k\u00f5iki kaarkaitse funktsioone, nagu vooluh\u00e4ired ja kaare olemasolu kontroll.<\/p>\n<p><img decoding=\"async\" alt=\"Kaarekaitses\u00fcsteem, mille aktiveerimine toimub voolusignali j\u00e4rgi\" src=\"\/wp-content\/uploads\/2019\/05\/1f41efdf7c3b6db7c38b4901a2954927.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<\/p>\n<h3>Funktsionaalsus<\/h3>\n<p><\/p>\n<ul>\n<li>Kolme faasi voolu kontroll.<\/li>\n<li>Nullj\u00e4rjestuse vool.<\/li>\n<li>S\u00fcndmuste logid, rikke re\u017eiimide salvestamine.<\/li>\n<li>S\u00e4\u00e4stmine toimub kas samaaegselt voolu ja valguse p\u00f5hjal, ainult valguse v\u00f5i ainult voolu p\u00f5hjal.<\/li>\n<li>Mehaanilise relee v\u00e4ljundi aktiveerimise aeg on alla 7 ms, valikulise IGBT-kaardi korral l\u00fcheneb aktiveerimise aeg 1 ms-ni.<\/li>\n<li>Seadistatavad aktiveerimise tsoonid.<\/li>\n<li>Pidev automaatkontrolli s\u00fcsteem.<\/li>\n<li>Seadet saab kasutada erinevates jaotusv\u00f5rkude kaarkaitses\u00fcsteemides madala ja keskmise pingega.<\/li>\n<li>Kaarkaitse ja v\u00e4ikese vooluga s\u00fcsteemi tuvastamine m\u00f5\u00f5dab l\u00fchiselituse voolu ja signaali ning kanali anduri kaudu ning l\u00fchise korral minimeerib tulep\u00f5lemise aega, katkestades kiiresti voolu, mis toidab kaari.<\/li>\n<\/ul>\n<p><\/p>\n<h3>Korreleerimise printsiip<\/h3>\n<p>\nKuna aktiveerimistingimused on m\u00e4\u00e4ratud konkreetse kaarkaitse etapi jaoks, rakendatakse valguse ja voolu matriitside v\u00e4ljunditele loogilist kokkuv\u00f5tet.<\/p>\n<p>Kui kaitsetase on valitud ainult \u00fches maatriksis, t\u00f6\u00f6tab see kas voolu- v\u00f5i valgusn\u00f5udmisel, v\u00f5imaldades seadistada s\u00fcsteemi t\u00f6\u00f6tama ainult voolusignaali j\u00e4rgi.<\/p>\n<h3>Kliendid, kelle signaalide j\u00e4lgimine on programmeeritava kaitse astmete raames saadaval:<\/h3>\n<p><\/p>\n<ul>\n<li>Faaside voolud.<\/li>\n<li>Nullj\u00e4rjestuse vool.<\/li>\n<li>Joonepinged.<\/li>\n<li>Faasipinged.<\/li>\n<li>Nullseeria pinge.<\/li>\n<li>Sagedus.<\/li>\n<li>Faaside voolude summa.<\/li>\n<li>Otseseeria vool.<\/li>\n<li>Tagasi seeria vool.<\/li>\n<li>Tagasi seeria voolu suhteline v\u00e4\u00e4rtus.<\/li>\n<li>Tagasi seeria ja nullseeria voolude suhe.<\/li>\n<li>Otseseeria pinge.<\/li>\n<li>Tagasi seeria pinge.<\/li>\n<li>Tagasi seeria pinge suhteline v\u00e4\u00e4rtus.<\/li>\n<li>Faaside voolu keskmine v\u00e4\u00e4rtus (IL1+IL2+IL3)\/3.<\/li>\n<li>Keskmine pinge UL1, UL2, UL3.<\/li>\n<li>Keskmine pinge U12, U23, U32.<\/li>\n<li>Nelineaarsete moonutuste koefitsient IL1.<\/li>\n<li>Nelineaarsete moonutuste koefitsient IL2.<\/li>\n<li>Nelineaarsete moonutuste koefitsient IL3.<\/li>\n<li>Nelineaarsete moonutuste koefitsient Ua.<\/li>\n<li>IL1 RMS v\u00e4\u00e4rtus.<\/li>\n<li>IL2 RMS v\u00e4\u00e4rtus.<\/li>\n<li>IL3 RMS v\u00e4\u00e4rtus.<\/li>\n<li>IL1, IL2, IL3 minimaalne v\u00e4\u00e4rtus.<\/li>\n<li>IL1, IL2, IL3 maksimaalne v\u00e4\u00e4rtus.<\/li>\n<li>U12, U23, U32 minimaalne v\u00e4\u00e4rtus.<\/li>\n<li>U12, U23, U32 maksimaalne v\u00e4\u00e4rtus.<\/li>\n<li>UL1, UL2, UL3 minimaalne v\u00e4\u00e4rtus.<\/li>\n<li>UL1, UL2, UL3 maksimaalne v\u00e4\u00e4rtus.<\/li>\n<li>Taustv\u00e4\u00e4rtus Uo.<\/li>\n<li>Io RMS v\u00e4\u00e4rtus.<\/li>\n<\/ul>\n<p><\/p>\n<h3>H\u00e4daolukordade registreerimine.<\/h3>\n<p>\nH\u00e4daolukordade registreerimine v\u00f5ib olla kasutusel k\u00f5igi m\u00f5\u00f5tesignaalide (voolud, pinged, teave digitaalsete sisendite ja v\u00e4ljundite olekute kohta) salvestamiseks. Digitaalsed sisendid sisaldavad samuti kaarekahjustuse signaale.<\/p>\n<h3>Salvestuse k\u00e4ivitamine.<\/h3>\n<p>\nSalvestust saab k\u00e4ivitada mis tahes kaitseastme v\u00f5i mis tahes digitaalse sisendi aktiveerimisega. K\u00e4ivitussignaal valitakse v\u00e4ljundsignaalide maatriksis (vertikaalne signaal DR). Salvestus saab samuti k\u00e4ivitada k\u00e4sitsi.<\/p>\n<h3>Enesekontroll.<\/h3>\n<p>\nSeadme energia s\u00f5ltumatu m\u00e4lu on realiseeritud suurte mahtuvustega kondensaatori ja madala energiatarbimisega RAM-i abil.<\/p>\n<p>Kui lisatoiteallikas on sisse l\u00fclitatud, toidetakse kondensaatorit ja operatiivm\u00e4lu sisemisest allikast. Kui toiteallikas on v\u00e4lja l\u00fclitatud, hakkab operatiivm\u00e4lu saama toidet kondensaatorilt. See s\u00e4ilitab teavet seni, kuni kondensaator suudab hoida lubatud pinget. +25\u00b0C temperatuuriga ruumis on t\u00f6\u00f6aeg 7 p\u00e4eva (k\u00f5rge niiskus v\u00e4hendab seda parameetrit).<\/p>\n<p>Energiakindel operatiivm\u00e4lu on m\u00f5eldud h\u00e4daolukordade salvestamiseks ja s\u00fcndmuste ajakava j\u00e4lgimiseks.<\/p>\n<p>Mikrokontrolleri funktsioone ja sellega seotud juhtmeid koos tarkvara korrasolekuga j\u00e4lgib eraldi isesektori v\u00f5rgu kontroll. Lisaks j\u00e4lgimisele proovib see v\u00f5rk mikrokontrollerit k\u00e4ivitada uuesti t\u00f5rke korral. Kui taask\u00e4ivitamine ei \u00f5nnestu, edastab isesektor signaali alustada t\u00f5sise sisemise kahjustuse indikatsiooniga.<\/p>\n<p>Kui isesektor avastab p\u00fcsiva kahjustuse, blokeerib see k\u00f5ik teised v\u00e4ljundreleed (v\u00e4lja arvatud isesektori funktsiooni v\u00e4ljundrelee ja kaarj\u00f5u kaitseks kasutatavad v\u00e4ljundreleed).<\/p>\n<p>Ka sisepingeallika toimimist j\u00e4lgitakse. Kui lisatoide puudub, edastatakse automaatselt h\u00e4iresignaal. See t\u00e4hendab, et sisekahjustuse v\u00e4ljundrelee on pingestatud, kui lisatoiteallikas on sisse l\u00fclitatud ja sisemisi kahjustusi ei tuvastata.<\/p>\n<p>J\u00e4lgitakse keskmoodulit, sisendi\/v\u00e4ljundi seadmeid ja andureid.<\/p>\n<h3>M\u00f5\u00f5tmised, mida kasutatakse kaarj\u00f5u kaitse funktsioonis.<\/h3>\n<p>\nKolme faasi voolu ja maapinnakontakti voolu m\u00f5\u00f5tmine kaarj\u00f5u kaitse jaoks toimub elektroonika kaudu. Elektroonika v\u00f5rdleb voolutasemed k\u00e4ivitusv\u00e4\u00e4rtustega ja edastab binaarsed signaalid \u201cI&gt;&gt;\u201d v\u00f5i \u201cIo&gt;&gt;\u201d kaarj\u00f5u kaitse funktsiooni jaoks, kui piiri \u00fcletamine toimub. Arvesse v\u00f5etakse k\u00f5ik voolu komponendid.<\/p>\n<p>Signaalid \u201cI&gt;&gt;\u201d ja \u201cIo&gt;&gt;\u201d on seotud FPGA kiibiga, mis teostab kaarj\u00f5u kaitse funktsiooni. Adekvaatsus kaarj\u00f5u kaitsmiseks on \u00b1 15% sagedusel 50 Hz.<\/p>\n<p><img decoding=\"async\" alt=\"Kaarekaitses\u00fcsteem, mille aktiveerimine toimub voolusignali j\u00e4rgi\" src=\"\/wp-content\/uploads\/2019\/05\/c1f12088f2d6f4f00acaadac09a254cb.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<\/p>\n<h3>Harmoonilised ja kogusisene mittesinusoidne (THD).<\/h3>\n<p>\nSeade arvutab THD protsendina vooludest ja pingetest p\u00f5hifrekentsil.<\/p>\n<p>Arvesse v\u00f5etakse harmoonilised alates 2. kuni 15. kuni faasivoolude ja pingete jaoks. (17. harmoonia arvestatakse osaliselt 15. harmoonia v\u00e4\u00e4rtusesse. See juhtub digitaalsete m\u00f5\u00f5tmiste p\u00f5him\u00f5tete t\u00f5ttu.)<\/p>\n<h3>Pingem\u00f5\u00f5tmise re\u017eiimid<\/h3>\n<p>\nS\u00f5ltuvalt rakenduse t\u00fc\u00fcbist ja olemasolevatest voolutrafodest v\u00f5ib seade olla \u00fchendatud kas nullj\u00e4rgu pinge, lineaarses v\u00f5i faasipinge juures. Muudetav parameeter \u201ePingem\u00f5\u00f5tmise re\u017eiim\u201c peab olema seadistatud vastavalt kasutatavale \u00fchendusele.<\/p>\n<h3>Saadaval re\u017eiimid:<\/h3>\n<p><\/p>\n<h3>\u201cU0\u201d<\/h3>\n<p>\nSeade on \u00fchendatud nullj\u00e4rgu pingega. Suunatud kaitse maapinnale l\u00fchise eest on saadaval. Lineaarse pinge m\u00f5\u00f5tmine, energia m\u00f5\u00f5tmine ning pinge t\u00f5usmise ja langemise kaitse ei ole saadaval.<\/p>\n<p><img decoding=\"async\" alt=\"Kaarekaitses\u00fcsteem, mille aktiveerimine toimub voolusignali j\u00e4rgi\" src=\"\/wp-content\/uploads\/2019\/05\/d28c23a5da99f011260962f9d5f22124.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<\/p>\n<h3>\u201c1LL\u201d<\/h3>\n<p>\nSeade on \u00fchendatud lineaarsesse pingesse. Saadaval on \u00fche faasi pinge m\u00f5\u00f5tmine ning pinge langemise ja t\u00f5usmise kaitse. Suunatud kaitse maapinnale l\u00fchise eest ei ole saadaval.<\/p>\n<p><img decoding=\"async\" alt=\"Kaarekaitses\u00fcsteem, mille aktiveerimine toimub voolusignali j\u00e4rgi\" src=\"\/wp-content\/uploads\/2019\/05\/ef85c9390c7ffe9b21367cceca125f0c.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<\/p>\n<h3>\u201c1LN\u201d<\/h3>\n<p>\nSeade on \u00fchendatud \u00fche faasi pingega. Saadaval on \u00fche faasi pinge m\u00f5\u00f5tmine. Maapinnaga maadeldud ja kompenseeritud neutraalsega v\u00f5rkudel on saadaval pinge langemise ja t\u00f5usmise kaitsed. Suunatud kaitse maapinnale l\u00fchise eest ei ole saadaval.<\/p>\n<p><img decoding=\"async\" alt=\"Kaarekaitses\u00fcsteem, mille aktiveerimine toimub voolusignali j\u00e4rgi\" src=\"\/wp-content\/uploads\/2019\/05\/5cb78a2fa82bd50a825f13fad995e134.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<\/p>\n<h3>S\u00fcmmeetrilised komponendid<\/h3>\n<p>\nKolmefaasilises s\u00fcsteemis saab pingeid ja voole jaotada s\u00fcmmeetrilistele komponentidele, vastavalt Fortescue'ile.<\/p>\n<h3>S\u00fcmmeetrilised komponendid on:<\/h3>\n<p><\/p>\n<ul>\n<li>Otsene j\u00e4rjestus.<\/li>\n<li>Tagurpidi j\u00e4rjestus.<\/li>\n<li>Nullj\u00e4rgu j\u00e4rjestus.<\/li>\n<\/ul>\n<p><\/p>\n<h3>Kontrollitavad objektid<\/h3>\n<p>\nSee seade v\u00f5imaldab kontrollida kuni kuut objekti, nagu katkestaja, eraldaja v\u00f5i maandamisnoa. Kontrolli saab teostada \u201evalik-tegevus\u201c v\u00f5i \u201eotsene kontroll\u201c p\u00f5him\u00f5tte j\u00e4rgi.<\/p>\n<h3>Loogilised funktsioonid<\/h3>\n<p>\nSeade toetab kasutaja programmeeritud loogikat signaalide loogiliste v\u00e4ljendite jaoks.<\/p>\n<h3>Saadaval funktsioonid on:<\/h3>\n<p><\/p>\n<ul>\n<li>JA.<\/li>\n<li>V\u00d5I.<\/li>\n<li>V\u00e4listav V\u00d5I.<\/li>\n<li>EI.<\/li>\n<li>COUNTERid.<\/li>\n<li>RS &amp; D ahelal\u00fclitid.<\/li>\n<\/ul>\n<p>Allikas: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/post\/451212\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412 \u043a\u043b\u0430\u0441\u0441\u0438\u0447\u0435\u0441\u043a\u043e\u043c \u043f\u043e\u043d\u0438\u043c\u0430\u043d\u0438\u0438 \u0434\u0443\u0433\u043e\u0432\u0430\u044f \u0437\u0430\u0449\u0438\u0442\u0430 \u0432 \u0420\u043e\u0441\u0441\u0438\u0438 \u2013 \u044d\u0442\u043e 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[&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":25102,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-33387","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0412 \u043a\u043b\u0430\u0441\u0441\u0438\u0447\u0435\u0441\u043a\u043e\u043c.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/prohoster.info\/et\/blog\/news\/sistema-dugovoj-zashhity-s-vozmozhnostyu-srabatyvaniya-po-tokovomu-signalu\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.1.1\" \/>\n\t\t<meta 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