{"id":21256,"date":"2026-01-08T22:40:56","date_gmt":"2026-01-08T14:40:56","guid":{"rendered":"https:\/\/viox.com\/?p=21256"},"modified":"2026-01-08T22:45:13","modified_gmt":"2026-01-08T14:45:13","slug":"ats-circuit-breaker-coordination-guide-icw-selectivity","status":"publish","type":"post","link":"https:\/\/test.viox.com\/tr\/ats-circuit-breaker-coordination-guide-icw-selectivity\/","title":{"rendered":"ATS ve Devre Kesici Koordinasyon K\u0131lavuzu: Icw ve Se\u00e7icilik A\u00e7\u0131klamas\u0131"},"content":{"rendered":"<div class=\"product-intro\">\n<figure style=\"margin-bottom: 30px; text-align: center;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto; display: block; margin: 0 auto;\" src=\"https:\/\/img.viox.com\/Industrial-automatic-transfer-switch-installation-showing-600A-ATS-with-visible-contacts-and-upstream-circuit-breakers-in-electrical-distribution-room.webp\" alt=\"Industrial 600A ATS installation with visible contacts and upstream circuit breakers in an electrical distribution room\" \/><figcaption style=\"font-style: italic; color: #555; margin-top: 10px; font-size: 0.9em;\">\u015eekil 1: Bir VIOX'un profesyonel kurulumu <a href=\"https:\/\/test.viox.com\/tr\/ats\/\">Otomatik Transfer Anahtar\u0131<\/a> bir da\u011f\u0131t\u0131m ortam\u0131nda ATS ve yukar\u0131 ak\u0131m koruma cihazlar\u0131 aras\u0131ndaki kritik fiziksel ili\u015fkiyi g\u00f6stermektedir.<\/figcaption><\/figure>\n<h2>\u00c7o\u011fu ATS Spesifikasyonu Neden Kritik Koordinasyon Fakt\u00f6r\u00fcn\u00fc Ka\u00e7\u0131r\u0131yor?<\/h2>\n<p>Bir otomatik transfer anahtar\u0131 belirtirken, \u00e7o\u011fu elektrik m\u00fchendisi bariz parametrelere odaklan\u0131r: s\u00fcrekli ak\u0131m de\u011feri, transfer s\u00fcresi ve voltaj uyumlulu\u011fu. Ancak d\u00fcnya \u00e7ap\u0131nda binlerce kurulumda kritik bir g\u00f6zetim gizleniyor: yukar\u0131 ak\u0131m devre kesicileri ile ATS'nin k\u0131sa devre dayan\u0131m yetene\u011fi aras\u0131ndaki koordinasyon kabusu. Bu bo\u015fluk, uyumsuz bir koruma \u015femas\u0131n\u0131n ya t\u00fcm tesisleri karartan ar\u0131za a\u00e7malar\u0131na neden oldu\u011fu ya da ekipman\u0131 tamamen koruyamad\u0131\u011f\u0131 ar\u0131za ko\u015fullar\u0131nda felaket haline gelir.<\/p>\n<p>Temel sorun, aras\u0131ndaki karma\u015f\u0131k etkile\u015fimde yatmaktad\u0131r. <strong>devre kesici se\u00e7icilik kategorileri<\/strong>, <strong>k\u0131sa s\u00fcreli dayan\u0131m ak\u0131m\u0131 (Icw) de\u011ferleri<\/strong>ve <strong>ATS ar\u0131za ak\u0131m\u0131 tolerans\u0131<\/strong>. M\u00fchendisler, se\u00e7ici koordinasyon elde etmek i\u00e7in kas\u0131tl\u0131 zaman gecikmeleri olan Kategori B devre kesicileri belirlediklerinde, ATS'nin bu gecikme penceresi s\u0131ras\u0131nda tam ar\u0131za ak\u0131m\u0131na dayanmas\u0131 gereken bir senaryo yarat\u0131rlar - genellikle 100 milisaniyeden 1 saniyeye kadar. Standart 3 \u00e7evrimli ATS \u00fcniteleri, bu uzun ar\u0131za s\u00fcrelerine dayanamaz ve bu da kontak kayna\u011f\u0131na, ark hasar\u0131na veya tam transfer anahtar\u0131 ar\u0131zas\u0131na yol a\u00e7ar.<\/p>\n<p>Bu kapsaml\u0131 k\u0131lavuz, ATS-kesici koordinasyonunda uzmanla\u015fmak, Kategori A ve B koruma cihazlar\u0131 aras\u0131ndaki ayr\u0131m\u0131 anlamak, zamana dayal\u0131 se\u00e7icilik ilkelerini do\u011fru bir \u015fekilde uygulamak ve ister hastaneler, ister veri merkezleri veya kritik end\u00fcstriyel tesisler i\u00e7in acil durum g\u00fc\u00e7 sistemleri tasarl\u0131yor olun, a\u015f\u0131r\u0131 ak\u0131m koruma stratejinizle uyumlu transfer anahtarlar\u0131 belirtmek i\u00e7in ihtiya\u00e7 duydu\u011funuz m\u00fchendislik d\u00fczeyinde i\u00e7g\u00f6r\u00fcy\u00fc sa\u011flar.<\/p>\n<h2>B\u00f6l\u00fcm 1: Devre Kesici Kategorilerini ve Icw De\u011ferlerini Anlamak<\/h2>\n<h3>1.1 Kategori A ve Kategori B Devre Kesiciler: Koordinasyon Stratejisinin Temeli<\/h3>\n<p>IEC 60947-2 standard\u0131, al\u00e7ak gerilim devre kesicilerini koordinasyon davran\u0131\u015flar\u0131n\u0131 belirleyen iki temel koruma kategorisine ay\u0131r\u0131r. <strong>Kategori A devre kesiciler<\/strong> anl\u0131k manyetik a\u00e7ma fonksiyonlar\u0131 ile \u00e7al\u0131\u015f\u0131r ve kas\u0131tl\u0131 k\u0131sa s\u00fcreli gecikme sa\u011flamaz. Bu cihazlar - tipik olarak kal\u0131pl\u0131 kasa devre kesicileri (MCCB'ler) ve minyat\u00fcr devre kesicileri (MCB'ler) - ar\u0131za ak\u0131m\u0131 alg\u0131land\u0131\u011f\u0131nda m\u00fcmk\u00fcn oldu\u011funca h\u0131zl\u0131 bir \u015fekilde, genellikle 10-20 milisaniye i\u00e7inde a\u00e7acak \u015fekilde tasarlanm\u0131\u015ft\u0131r. Kategori A kesiciler, k\u0131sa devre ak\u0131mlar\u0131na dayanmak i\u00e7in de\u011fil, kesmek i\u00e7in tasarland\u0131klar\u0131ndan bir Icw de\u011ferine sahip de\u011fildir.<\/p>\n<p>Kategori A kesicileri, amac\u0131n an\u0131nda ar\u0131za giderme oldu\u011fu motor besleme devrelerinde, son da\u011f\u0131t\u0131m panolar\u0131nda ve bran\u015fman devre korumas\u0131nda kullanacaks\u0131n\u0131z. H\u0131zl\u0131 hareket eden \u00f6zellik, kablolar\u0131 ve a\u015fa\u011f\u0131 ak\u0131m ekipmanlar\u0131n\u0131 termal ve mekanik stresten korur, ancak koordinasyon esnekli\u011fi sunmaz. Korumal\u0131 b\u00f6lgede herhangi bir yerde bir ar\u0131za meydana geldi\u011finde, Kategori A kesici a\u00e7ar - nokta.<\/p>\n<figure style=\"margin: 30px 0; text-align: center;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto; display: block; margin: 0 auto;\" src=\"https:\/\/img.viox.com\/Technical-comparison-of-Category-A-vs-Category-B-circuit-breakers-showing-internal-components-trip-characteristics-and-Icw-ratings-for-selective-coordination.webp\" alt=\"Technical comparison of Category A vs Category B circuit breakers showing internal components, trip characteristics, and Icw ratings\" \/><figcaption style=\"font-style: italic; color: #555; margin-top: 10px; font-size: 0.9em;\">\u015eekil 2: Kategori A (anl\u0131k) ve Kategori B (gecikmeli) kesiciler aras\u0131ndaki i\u00e7 farkl\u0131l\u0131klar\u0131 g\u00f6steren ayr\u0131nt\u0131l\u0131 bir teknik kar\u015f\u0131la\u015ft\u0131rma. Se\u00e7ici koordinasyon i\u00e7in gerekli olan Kategori B cihazlar\u0131ndaki g\u00fc\u00e7lendirilmi\u015f kontaklara ve gecikme mekanizmalar\u0131na dikkat edin.<\/figcaption><\/figure>\n<p><strong>Kategori B devre kesiciler<\/strong>, aksine, geli\u015fmi\u015f zamana dayal\u0131 koordinasyon stratejileri sa\u011flayan ayarlanabilir k\u0131sa s\u00fcreli gecikme fonksiyonlar\u0131 i\u00e7erir. Bu cihazlar - a\u011f\u0131rl\u0131kl\u0131 olarak hava devre kesicileri (ACB'ler) ve belirli y\u00fcksek performansl\u0131 <a href=\"https:\/\/test.viox.com\/tr\/mccb\/\">MCCB'ler<\/a>- ar\u0131za ak\u0131m\u0131 alg\u0131land\u0131\u011f\u0131nda a\u00e7ma tepkilerini 0,05 ile 1,0 saniye aras\u0131nda kas\u0131tl\u0131 olarak geciktirmek i\u00e7in programlanabilir. Bu gecikme penceresi, a\u015fa\u011f\u0131 ak\u0131m koruma cihazlar\u0131n\u0131n \u00f6nce ar\u0131zalar\u0131 gidermesine izin vererek ger\u00e7ek se\u00e7ici koordinasyon sa\u011flar. Kategori B kesiciler, hasar g\u00f6rmeden gecikme s\u00fcresi boyunca ar\u0131za ak\u0131m\u0131na dayanma yeteneklerini onaylayan bir Icw de\u011ferine sahip olmal\u0131d\u0131r.<\/p>\n<table style=\"width: 100%; border-collapse: collapse; margin-bottom: 20px;\" border=\"1\" cellspacing=\"0\" cellpadding=\"10\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th>\u00d6zellik<\/th>\n<th>Kategori A Kesiciler<\/th>\n<th>Kategori B Kesiciler<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>A\u00e7ma Karakteristi\u011fi<\/strong><\/td>\n<td>Anl\u0131k (10-20ms)<\/td>\n<td>Ayarlanabilir gecikme (0.05-1.0s)<\/td>\n<\/tr>\n<tr>\n<td><strong>Icw De\u011feri<\/strong><\/td>\n<td>Sa\u011flanmad\u0131<\/td>\n<td>Zorunlu de\u011fer<\/td>\n<\/tr>\n<tr>\n<td><strong>Tipik Tipler<\/strong><\/td>\n<td>MCB, standart MCCB<\/td>\n<td>ACB, geli\u015fmi\u015f MCCB<\/td>\n<\/tr>\n<tr>\n<td><strong>Birincil Kullan\u0131m<\/strong><\/td>\n<td>Besleyici\/bran\u015fman devreleri<\/td>\n<td>Ana giri\u015fler, bara ba\u011flant\u0131s\u0131<\/td>\n<\/tr>\n<tr>\n<td><strong>Koordinasyon Y\u00f6ntemi<\/strong><\/td>\n<td>Sadece ak\u0131m b\u00fcy\u00fckl\u00fc\u011f\u00fc<\/td>\n<td>Zamana gecikmeli se\u00e7icilik<\/td>\n<\/tr>\n<tr>\n<td><strong>G\u00f6receli Maliyet<\/strong><\/td>\n<td>Daha d\u00fc\u015f\u00fck<\/td>\n<td>Daha y\u00fcksek<\/td>\n<\/tr>\n<tr>\n<td><strong>Uygulama Karma\u015f\u0131kl\u0131\u011f\u0131<\/strong><\/td>\n<td>Basit<\/td>\n<td>Koordinasyon \u00e7al\u0131\u015fmas\u0131 gerektirir<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Bu temel ayr\u0131m\u0131 anlamak, ne zaman <a href=\"https:\/\/test.viox.com\/tr\/circuit-breaker-ratings-icu-ics-icw-icm\/\">ATS kurulumlar\u0131 i\u00e7in devre korumas\u0131 se\u00e7mek<\/a>, \u00e7\u00fcnk\u00fc kesici kategorisi do\u011frudan ATS de\u011fer gereksinimlerini ve koordinasyon karma\u015f\u0131kl\u0131\u011f\u0131n\u0131 belirler.<\/p>\n<h3>1.2 Icw (K\u0131sa S\u00fcreli Dayan\u0131m Ak\u0131m\u0131) Nedir?<\/h3>\n<p><strong>Nominal k\u0131sa s\u00fcreli dayan\u0131m ak\u0131m\u0131 (Icw)<\/strong> Kategori B devre kesicinin a\u00e7madan veya termal veya elektrodinamik hasar g\u00f6rmeden belirli bir s\u00fcre boyunca ta\u015f\u0131yabilece\u011fi maksimum RMS simetrik k\u0131sa devre ak\u0131m\u0131n\u0131 temsil eder. IEC 60947-2, 0.05, 0.1, 0.25, 0.5 ve 1.0 saniyelik standart test s\u00fcrelerini tan\u0131mlar ve kesici, kontak bozulmas\u0131, yal\u0131t\u0131m ar\u0131zas\u0131 veya mekanik deformasyon izlenirken ar\u0131za boyunca kapal\u0131 kal\u0131r.<\/p>\n<figure style=\"margin: 30px 0; text-align: center;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto; display: block; margin: 0 auto;\" src=\"https:\/\/img.viox.com\/Detailed-view-of-circuit-breaker-contact-assembly-showing-arc-quenching-and-thermal-distribution-during-short-time-withstand-Icw-operation---VIOX-Electric.webp\" alt=\"Close-up of circuit breaker contact assembly showing arc quenching and thermal distribution\" \/><figcaption style=\"font-style: italic; color: #555; margin-top: 10px; font-size: 0.9em;\">\u015eekil 3: Kontak tertibat\u0131n\u0131n ve ark s\u00f6nd\u00fcrme odalar\u0131n\u0131n ayr\u0131nt\u0131l\u0131 g\u00f6r\u00fcn\u00fcm\u00fc. Bu bile\u015fenler, k\u0131sa s\u00fcreli dayan\u0131m (Icw) s\u00fcresi boyunca a\u015f\u0131r\u0131 termal (I<sup>2<\/sup>t) ve elektrodinamik gerilimlere dayanmal\u0131d\u0131r.<\/figcaption><\/figure>\n<p>Bu dayan\u0131m s\u00fcresi boyunca fiziksel gerilimler a\u015f\u0131r\u0131d\u0131r. Termal olarak, ar\u0131za ak\u0131m\u0131, ak\u0131m\u0131n karesiyle zaman\u0131n \u00e7arp\u0131m\u0131na g\u00f6re iletkenleri, kontaklar\u0131 ve baralar\u0131 \u0131s\u0131tan I<sup>2<\/sup>t enerjisi \u00fcretir. 0,5 saniye boyunca devam eden 50kA'l\u0131k bir ar\u0131za, malzeme s\u0131cakl\u0131k s\u0131n\u0131rlar\u0131n\u0131 a\u015fmadan emilmesi gereken 1.250 MJ\/s termal enerji \u00fcretir. Elektrodinamik olarak, ar\u0131za ak\u0131mlar\u0131 taraf\u0131ndan \u00fcretilen manyetik alanlar, paralel iletkenler aras\u0131nda metre ba\u015f\u0131na birka\u00e7 tonu a\u015fabilen itme kuvvetleri olu\u015fturur - bu kuvvetler baralar\u0131 b\u00fckmemeli veya kontak tertibatlar\u0131na zarar vermemelidir.<\/p>\n<p><strong>Icw neden ATS koordinasyonu i\u00e7in kritik \u00f6neme sahip?<\/strong>: A\u015fa\u011f\u0131 ak\u0131m besleyicilerle se\u00e7icilik elde etmek i\u00e7in yukar\u0131 ak\u0131m Kategori B kesiciyi 0,2 saniyelik k\u0131sa s\u00fcreli bir gecikmeyle yap\u0131land\u0131rd\u0131\u011f\u0131n\u0131zda, serideki her cihaz - ATS dahil - bu gecikmenin tamam\u0131 boyunca ar\u0131za ak\u0131m\u0131na dayanmal\u0131d\u0131r. 0,5 saniye i\u00e7in Icw = 42kA de\u011ferine sahip bir kesici, yar\u0131m saniye boyunca 42.000 ampere dayanabilir, ancak ATS'niz e\u015fde\u011fer k\u0131sa s\u00fcreli dayan\u0131m yetene\u011fine sahip de\u011filse, sistem g\u00fcvenilirli\u011fini art\u0131rmak i\u00e7in tasarlanm\u0131\u015f koordinasyon \u015femalar\u0131 alt\u0131nda ba\u015far\u0131s\u0131z olan zay\u0131f halka haline gelir.<\/p>\n<table style=\"width: 100%; border-collapse: collapse; margin-bottom: 20px;\" border=\"1\" cellspacing=\"0\" cellpadding=\"10\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th>Kesici Tipi<\/th>\n<th>Tipik Icw Aral\u0131\u011f\u0131<\/th>\n<th>Ortak Zaman De\u011ferleri<\/th>\n<th>Uygulama \u00d6rne\u011fi<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>A\u011f\u0131r hizmet tipi MCCB<\/strong><\/td>\n<td>12-50 kA<\/td>\n<td>0.05s, 0.1s, 0.25s<\/td>\n<td>Da\u011f\u0131t\u0131m panosu ana<\/td>\n<\/tr>\n<tr>\n<td><strong>Hava Devre Kesici (ACB)<\/strong><\/td>\n<td>30-100 kA<\/td>\n<td>0.1s, 0.25s, 0.5s, 1.0s<\/td>\n<td>Servis giri\u015fi, bara ba\u011flant\u0131s\u0131<\/td>\n<\/tr>\n<tr>\n<td><strong>Kompakt ACB<\/strong><\/td>\n<td>50-85 kA<\/td>\n<td>0.25s, 0.5s, 1.0s<\/td>\n<td>Jenerat\u00f6r ana, UPS giri\u015fi<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>Uzman \u0130pucu<\/strong>: Bir kesicinin veri sayfas\u0131ndaki Icw de\u011feri tipik olarak maksimum gecikme s\u00fcresini (genellikle 1.0s) varsayar. Koordinasyon \u00e7al\u0131\u015fman\u0131z daha k\u0131sa gecikmeler (\u00f6rne\u011fin, 0.1s) gerektiriyorsa, 0.1s'deki termal gerilim I<sup>2<\/sup>t 1.0s'dekinden \u00f6nemli \u00f6l\u00e7\u00fcde daha az oldu\u011fundan, daha d\u00fc\u015f\u00fck Icw de\u011ferine sahip bir kesici kullanabilirsiniz. Her zaman I<sup>2<\/sup>t(ar\u0131za) &lt; I<sup>2<\/sup>cw \u00d7 t(gecikme) oldu\u011funu do\u011frulay\u0131n.<\/p>\n<h3>1.3 \u0130lgili De\u011ferler: Icu, Ics ve Icm<\/h3>\n<p>Devre kesici k\u0131sa devre performans\u0131, yal\u0131t\u0131lm\u0131\u015f \u00f6zellikler olarak de\u011fil, koordine bir sistem olarak anla\u015f\u0131lmas\u0131 gereken d\u00f6rt birbiriyle ili\u015fkili de\u011feri i\u00e7erir.<\/p>\n<p><strong>Icu (Nihai k\u0131sa devre kesme kapasitesi)<\/strong> IEC 60947-2'de belirtilen test ko\u015fullar\u0131 alt\u0131nda kesicinin g\u00fcvenli bir \u015fekilde kesebilece\u011fi maksimum RMS simetrik ar\u0131za ak\u0131m\u0131n\u0131 tan\u0131mlar. Icu'da kesme i\u015fleminden sonra, kesici hasar g\u00f6rebilir ve s\u00fcrekli hizmet i\u00e7in uygun olmayabilir, ancak bir g\u00fcvenlik tehlikesi olu\u015fturmamal\u0131d\u0131r. Icu'yu hayatta kalma e\u015fi\u011fi olarak d\u00fc\u015f\u00fcn\u00fcn; kesici bunu atlatt\u0131, ama k\u0131l pay\u0131. Kritik kurulumlar i\u00e7in, mevcut ar\u0131za ak\u0131m\u0131n\u0131n t\u00fcm \u00e7al\u0131\u015fma senaryolar\u0131nda Icu'nun \u00e7ok alt\u0131nda kalmas\u0131n\u0131 istersiniz.<\/p>\n<p><strong>Ics (Servis k\u0131sa devre kesme kapasitesi)<\/strong> kesicinin kesebilece\u011fi ve ard\u0131ndan tam performans yetene\u011fi bozulmadan normal \u00e7al\u0131\u015fmaya devam edebilece\u011fi ar\u0131za ak\u0131m\u0131 seviyesini temsil eder. IEC standard\u0131, Ics'yi Icu'nun bir y\u00fczdesi olarak tan\u0131mlar; tipik olarak kesici tasar\u0131m\u0131na ve ama\u00e7lanan uygulamaya ba\u011fl\u0131 olarak , , veya 0. <a href=\"https:\/\/test.viox.com\/tr\/ats-troubleshooting-guide\/\">kritik \u00f6neme sahip transfer anahtar\u0131 sistemleri<\/a> hastanelerde, veri merkezlerinde veya acil durum g\u00fc\u00e7 tesisatlar\u0131nda, Ics = Icu'nun 0'\u00fc olan kesicileri belirtmek, maksimum de\u011ferdeki ar\u0131za olaylar\u0131n\u0131n bile koruma sistemi b\u00fct\u00fcnl\u00fc\u011f\u00fcn\u00fc bozmamas\u0131n\u0131 sa\u011flar.<\/p>\n<p><strong>Icm (Nominal yapma ak\u0131m\u0131)<\/strong> kesicinin nominal gerilimde g\u00fcvenli bir \u015fekilde kapatabilece\u011fi maksimum tepe anl\u0131k ak\u0131m\u0131 belirtir. Bu de\u011fer, mevcut bir ar\u0131za durumuna ge\u00e7i\u015f yapabilece\u011finiz ATS transfer i\u015flemleri ve jenerat\u00f6r senkronizasyon dizileri s\u0131ras\u0131nda kritik hale gelir. Icm ve Icu aras\u0131ndaki ili\u015fki, ar\u0131za d\u00f6ng\u00fcs\u00fcn\u00fcn g\u00fc\u00e7 fakt\u00f6r\u00fcne ba\u011fl\u0131d\u0131r: Icm = k \u00d7 Icu, burada k 1,5 (y\u00fcksek empedansl\u0131, diren\u00e7li ar\u0131zalar) ile 2,2 (d\u00fc\u015f\u00fck empedansl\u0131, g\u00fc\u00e7 sistemlerinde tipik end\u00fcktif ar\u0131zalar) aras\u0131nda de\u011fi\u015fir. Cos \u03c6 = 0,3'te Icu = 50kA olarak derecelendirilmi\u015f bir kesici i\u00e7in, Icm \u2248 110kA tepe de\u011feri beklenir.<\/p>\n<p><strong>Yayg\u0131n Hata<\/strong>: M\u00fchendisler genellikle yukar\u0131 ak\u0131m kesicisinin Icu'sunun mevcut ar\u0131za ak\u0131m\u0131n\u0131 a\u015ft\u0131\u011f\u0131n\u0131 do\u011frular, ancak zaman gecikmeleri kullan\u0131ld\u0131\u011f\u0131nda Icw yeterlili\u011fini kontrol etmeyi ba\u015faramazlar. <a href=\"https:\/\/test.viox.com\/tr\/wiring-automatic-transfer-switch-hybrid-inverter\/\">jenerat\u00f6r-ATS-\u015febeke koordinasyon \u015femalar\u0131<\/a>, i\u00e7in bu g\u00f6zetim felaket olabilir; kesici ar\u0131zadan kurtulur (Icu'yu kar\u015f\u0131lar), ancak ATS, 0,3 saniyelik gecikme penceresi s\u0131ras\u0131nda kontaklar\u0131 kaynak yapar \u00e7\u00fcnk\u00fc kimse k\u0131sa s\u00fcreli de\u011ferleri do\u011frulamad\u0131.<\/p>\n<h2>B\u00f6l\u00fcm 2: Se\u00e7icilik \u0130lkeleri ve Koordinasyon Stratejileri<\/h2>\n<h3>2.1 Se\u00e7icilik (Ay\u0131rt Etme) Nedir?<\/h3>\n<p><strong>Se\u00e7icilik<\/strong>, ay\u0131rt etme veya koordinasyon olarak da adland\u0131r\u0131l\u0131r, bir da\u011f\u0131t\u0131m sistemindeki a\u015f\u0131r\u0131 ak\u0131m koruma cihazlar\u0131n\u0131n, bir ar\u0131zan\u0131n hemen yukar\u0131s\u0131ndaki koruma cihaz\u0131n\u0131n \u00e7al\u0131\u015fmas\u0131 ve di\u011fer t\u00fcm yukar\u0131 ak\u0131m cihazlar\u0131n\u0131n kapal\u0131 kalmas\u0131 i\u00e7in stratejik d\u00fczenlemesini tan\u0131mlar. M\u00fchendislik hedefi, g\u00fc\u00e7 kesintisinin kapsam\u0131n\u0131 en aza indirmektir; ar\u0131zadan etkilenen tesisat\u0131n m\u00fcmk\u00fcn olan en k\u00fc\u00e7\u00fck b\u00f6l\u00fcm\u00fcn\u00fc izole ederken, di\u011fer t\u00fcm y\u00fcklere hizmetin devaml\u0131l\u0131\u011f\u0131n\u0131 sa\u011flamakt\u0131r.<\/p>\n<p>Ortak bir ana kesiciden beslenen ayr\u0131 besleme kesicileri arac\u0131l\u0131\u011f\u0131yla yirmi \u00fcretim h\u00fccresine g\u00fc\u00e7 sa\u011flayan bir da\u011f\u0131t\u0131m sistemi d\u00fc\u015f\u00fcn\u00fcn. Se\u00e7icilik olmadan, 1 numaral\u0131 H\u00fccredeki bir toprak ar\u0131zas\u0131 ana kesiciyi a\u00e7abilir, yirmi h\u00fccrenin tamam\u0131n\u0131 karartabilir ve t\u00fcm tesiste \u00fcretimi durdurabilir. Uygun se\u00e7icilik ile, yaln\u0131zca 1 numaral\u0131 H\u00fccre besleme kesicisi a\u00e7\u0131l\u0131r ve kesintiyi bir h\u00fccreyle s\u0131n\u0131rlar, di\u011fer on dokuz h\u00fccre \u00e7al\u0131\u015fmaya devam eder.<\/p>\n<p>\u0130ki temel mekanizma se\u00e7icili\u011fi sa\u011flar: <strong>ak\u0131m se\u00e7icili\u011fi<\/strong> (amper se\u00e7icili\u011fi veya b\u00fcy\u00fckl\u00fc\u011fe g\u00f6re ay\u0131rt etme olarak da adland\u0131r\u0131l\u0131r) ve <strong>zaman se\u00e7icili\u011fi<\/strong> (kas\u0131tl\u0131 gecikmeyle ay\u0131rt etme). \u00c7o\u011fu koordine koruma \u015femas\u0131, farkl\u0131 ar\u0131za ak\u0131m\u0131 aral\u0131klar\u0131nda her iki mekanizmay\u0131 da kullan\u0131r ve y\u00fcksek ar\u0131za seviyelerinde k\u0131smi se\u00e7icilik ve sistem empedans\u0131n\u0131n farkl\u0131 konumlardaki ar\u0131za b\u00fcy\u00fckl\u00fcklerini do\u011fal olarak farkl\u0131la\u015ft\u0131rd\u0131\u011f\u0131 daha d\u00fc\u015f\u00fck ak\u0131mlarda toplam se\u00e7icilik elde eder.<\/p>\n<h3>2.2 Ak\u0131m Se\u00e7icili\u011fi: B\u00fcy\u00fckl\u00fc\u011fe G\u00f6re Do\u011fal Koordinasyon<\/h3>\n<p>Ak\u0131m se\u00e7icili\u011fi, da\u011f\u0131t\u0131m seviyeleri aras\u0131nda ar\u0131za ak\u0131m\u0131 b\u00fcy\u00fckl\u00fc\u011f\u00fc farkl\u0131l\u0131klar\u0131 olu\u015fturmak i\u00e7in kablolar\u0131n ve transformat\u00f6rlerin do\u011fal empedans\u0131ndan yararlan\u0131r. 50 metrelik bir besleme kablosunun y\u00fck ucundaki bir ar\u0131za, kablo empedans\u0131 nedeniyle besleme kayna\u011f\u0131ndaki bir ar\u0131zadan \u00f6nemli \u00f6l\u00e7\u00fcde daha az ak\u0131m \u00e7eker. Yukar\u0131 ak\u0131m kesicisinin anl\u0131k a\u00e7ma e\u015fi\u011fini, a\u015fa\u011f\u0131 ak\u0131m kesicisinin g\u00f6rece\u011fi maksimum ar\u0131za ak\u0131m\u0131n\u0131n \u00fczerine ayarlayarak, otomatik olarak se\u00e7icilik elde edersiniz; a\u015fa\u011f\u0131 ak\u0131m cihaz\u0131 daha d\u00fc\u015f\u00fck ak\u0131mlarda a\u00e7\u0131l\u0131r, yukar\u0131 ak\u0131m cihaz\u0131 yaln\u0131zca korunan b\u00f6lgesindeki ar\u0131zalara yan\u0131t verir.<\/p>\n<p><strong>\u00d6rnek<\/strong>: 75 metre 50mm\u00b2 bak\u0131r kablo \u00fczerinden 100A'lik bir besleme kesicisini besleyen 400A'lik bir ana kesici. Ana kesici konumundaki k\u0131sa devre ak\u0131m\u0131 35kA'ya ula\u015fabilir, ancak kablo empedans\u0131 besleme kesicisinin y\u00fck terminallerindeki maksimum ar\u0131za ak\u0131m\u0131n\u0131 yakla\u015f\u0131k 12kA ile s\u0131n\u0131rlar. Ana kesicinin anl\u0131k a\u00e7mas\u0131n\u0131 25kA'ya ve besleyicinin manyetik a\u00e7mas\u0131n\u0131 15kA'ya ayarlamak bir se\u00e7icilik penceresi olu\u015fturur; 25kA'dan daha az ak\u0131m \u00e7eken herhangi bir ar\u0131za yaln\u0131zca besleme kesicisi taraf\u0131ndan temizlenir.<\/p>\n<p>Ak\u0131m se\u00e7icili\u011finin s\u0131n\u0131rlamas\u0131 <strong>se\u00e7icilik s\u0131n\u0131r\u0131d\u0131r<\/strong>; yukar\u0131 ak\u0131m ve a\u015fa\u011f\u0131 ak\u0131m cihazlar\u0131n\u0131n zaman-ak\u0131m e\u011frilerinin kesi\u015fti\u011fi ar\u0131za ak\u0131m\u0131 seviyesi. Bu ak\u0131m\u0131n alt\u0131nda, yaln\u0131zca a\u015fa\u011f\u0131 ak\u0131m cihaz\u0131 \u00e7al\u0131\u015f\u0131r. \u00dczerinde, her iki cihaz da ayn\u0131 anda a\u00e7\u0131labilir (se\u00e7icilik kayb\u0131). Tipik bir MCCB koordinasyon \u00e7ifti i\u00e7in, se\u00e7icilik s\u0131n\u0131rlar\u0131 kesici de\u011ferlerine ve \u00fcretici taraf\u0131ndan sa\u011flanan se\u00e7icilik tablolar\u0131na ba\u011fl\u0131 olarak 3-15kA aras\u0131nda de\u011fi\u015fir.<\/p>\n<p><strong>K\u0131smi se\u00e7icilik<\/strong> koordinasyonun se\u00e7icilik s\u0131n\u0131r\u0131na kadar korunmas\u0131, ancak daha y\u00fcksek ar\u0131za ak\u0131mlar\u0131nda kaybedilmesi durumunda mevcuttur. <strong>Toplam se\u00e7icilik<\/strong> koordinasyonun a\u015fa\u011f\u0131 ak\u0131m cihaz\u0131n\u0131n tam kesme kapasitesine kadar uzand\u0131\u011f\u0131 anlam\u0131na gelir. <a href=\"https:\/\/test.viox.com\/tr\/ats-troubleshooting-generator-wont-transfer\/\">otomatik transfer anahtar\u0131 ar\u0131za korumas\u0131n\u0131n<\/a> a\u015fa\u011f\u0131 ak\u0131m ar\u0131zalar\u0131 s\u0131ras\u0131nda yukar\u0131 ak\u0131m kesici kararl\u0131l\u0131\u011f\u0131n\u0131 garanti etmesi gereken tesisatlar i\u00e7in, toplam se\u00e7icilik genellikle \u015fartname veya kod gereksinimleri taraf\u0131ndan zorunlu k\u0131l\u0131n\u0131r.<\/p>\n<h3>2.3 Icw ile Zaman Se\u00e7icili\u011fi: Kas\u0131tl\u0131 Gecikmeleri M\u00fchendislik Etmek<\/h3>\n<p>Zaman se\u00e7icili\u011fi, a\u015fa\u011f\u0131 ak\u0131m cihazlar\u0131n\u0131n \u00f6nce ar\u0131zalar\u0131 temizleyebilece\u011fi bir koordinasyon penceresi olu\u015fturmak i\u00e7in yukar\u0131 ak\u0131m koruma cihazlar\u0131nda kas\u0131tl\u0131 gecikmeler uygular. Bu yakla\u015f\u0131m, \u00f6zellikle g\u00fc\u00e7 kayna\u011f\u0131na yak\u0131n y\u00fcksek ar\u0131za ak\u0131m\u0131 seviyelerinde, seviyeler aras\u0131ndaki empedans farkl\u0131la\u015fmas\u0131n\u0131n minimum oldu\u011fu durumlarda, tek ba\u015f\u0131na ak\u0131m se\u00e7icili\u011finin toplam koordinasyonu sa\u011flayamad\u0131\u011f\u0131 durumlarda gereklidir.<\/p>\n<figure style=\"margin: 30px 0; text-align: center;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto; display: block; margin: 0 auto;\" src=\"https:\/\/img.viox.com\/Technical-diagram-showing-ATS-circuit-breaker-selective-coordination-with-time-delays-Icw-ratings-and-fault-current-paths-in-emergency-power-distribution.webp\" alt=\"Technical diagram showing ATS circuit breaker selective coordination with time delays and Icw ratings\" \/><figcaption style=\"font-style: italic; color: #555; margin-top: 10px; font-size: 0.9em;\">\u015eekil 4: Kritik zaman gecikmelerini g\u00f6steren bir koordinasyon \u015femas\u0131. \u015eebeke ana (0,4 s gecikme) ve jenerat\u00f6r kesicisi (0,2 s gecikme) a\u015fa\u011f\u0131 ak\u0131m besleyicileriyle (anl\u0131k) koordine olur ve ATS'nin bu gecikme s\u00fcreleri boyunca ar\u0131za ak\u0131m\u0131na dayanacak yeterli Icw'ye sahip olmas\u0131n\u0131 gerektirir.<\/figcaption><\/figure>\n<p>\u0130lke basittir: yukar\u0131 ak\u0131m Kategori B kesiciyi k\u0131sa s\u00fcreli bir gecikmeyle (tipik olarak 0,1 s, 0,2 s veya 0,4 s) yap\u0131land\u0131r\u0131n, ard\u0131ndan a\u015fa\u011f\u0131 ak\u0131m kesicileri giderek daha k\u0131sa gecikmeler veya anl\u0131k a\u00e7ma ile ayarlay\u0131n. Bir ar\u0131za meydana geldi\u011finde, ar\u0131zaya en yak\u0131n a\u015fa\u011f\u0131 ak\u0131m kesicisi 10-30 ms i\u00e7inde \u00e7al\u0131\u015f\u0131r, yukar\u0131 ak\u0131m kesicisi ise \u00f6nceden ayarlanm\u0131\u015f gecikmesi i\u00e7in kas\u0131tl\u0131 olarak kapal\u0131 kal\u0131r. A\u015fa\u011f\u0131 ak\u0131m kesicisi ar\u0131zay\u0131 ba\u015far\u0131yla temizlerse, yukar\u0131 ak\u0131m cihaz\u0131 asla a\u00e7\u0131lmaz. A\u015fa\u011f\u0131 ak\u0131m cihaz\u0131 ar\u0131zalan\u0131rsa veya ar\u0131za kesme kapasitesini a\u015farsa, yukar\u0131 ak\u0131m kesicisi gecikmesinden sonra \u00e7al\u0131\u015f\u0131r ve yedek koruma sa\u011flar.<\/p>\n<p><strong>Kritik gereksinim<\/strong>: Yukar\u0131 ak\u0131m Kategori B kesici, t\u00fcm gecikme s\u00fcresi boyunca ar\u0131za ak\u0131m\u0131na dayanacak yeterli Icw de\u011ferine sahip olmal\u0131d\u0131r. Y\u00f6neten denklem \u015fudur:<\/p>\n<p><strong>I<sup>2<\/sup>t(ar\u0131za) &lt; I<sup>2<\/sup>cw \u00d7 t(gecikme)<\/strong><\/p>\n<p>Burada I<sup>2<\/sup>t(ar\u0131za), ar\u0131zadan kaynaklanan termal enerjiyi (ak\u0131m karesi \u00d7 zaman) temsil eder ve I<sup>2<\/sup>cw \u00d7 t(gecikme), kesicinin dayanma yetene\u011fini temsil eder.<\/p>\n<table style=\"width: 100%; border-collapse: collapse; margin-bottom: 20px;\" border=\"1\" cellspacing=\"0\" cellpadding=\"10\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th>Koordinasyon Seviyesi<\/th>\n<th>Cihaz T\u00fcr\u00fc<\/th>\n<th>A\u00e7ma Gecikme Ayar\u0131<\/th>\n<th>30kA Ar\u0131zada Gerekli Icw<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Seviye 3 \u2013 Ana Giri\u015f<\/strong><\/td>\n<td>ACB 1600A<\/td>\n<td>0,4s gecikme<\/td>\n<td>0,5s i\u00e7in 42kA<\/td>\n<\/tr>\n<tr>\n<td><strong>Seviye 2 \u2013 Alt da\u011f\u0131t\u0131m<\/strong><\/td>\n<td>MCCB 400A<\/td>\n<td>0,2s gecikme<\/td>\n<td>0,25s i\u00e7in 35kA<\/td>\n<\/tr>\n<tr>\n<td><strong>Seviye 1 \u2013 Besleyici<\/strong><\/td>\n<td>MCCB 100A<\/td>\n<td>Anl\u0131k<\/td>\n<td>Uygulanamaz (Kategori A)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Bu kademede, Seviye 1'deki 30kA'lik bir ar\u0131za, 100A'lik besleme kesicisi taraf\u0131ndan 20ms i\u00e7inde temizlenir. 400A'lik kesici 0,2s bekler (Icw de\u011ferine g\u00f6re en az 0,25s boyunca 30kA'ya dayanmal\u0131d\u0131r), ar\u0131zan\u0131n temizlendi\u011fini g\u00f6r\u00fcr ve kapal\u0131 kal\u0131r. 1600A'lik ana kesici 0,4s bekler (en az 0,5s boyunca 30kA'ya dayanmal\u0131d\u0131r), ayr\u0131ca kapal\u0131 kal\u0131r. Sonu\u00e7: yaln\u0131zca ar\u0131zal\u0131 besleyici g\u00fc\u00e7 kaybeder.<\/p>\n<p><strong>Yayg\u0131n Hata<\/strong>: M\u00fchendisler bazen ATS de dahil olmak \u00fczere t\u00fcm seri ba\u011fl\u0131 ekipmanlar\u0131n uzat\u0131lm\u0131\u015f ar\u0131za s\u00fcresine dayanabilece\u011fini do\u011frulamadan \u201ckoordinasyonu iyile\u015ftirmek\u201d i\u00e7in ana kesicideki anl\u0131k a\u00e7may\u0131 devre d\u0131\u015f\u0131 b\u0131rak\u0131r. Bu, gecikmeli a\u00e7ma etkinle\u015fmeden \u00f6nce ekipman hasar\u0131n\u0131n meydana geldi\u011fi bir koruma bo\u015flu\u011fu yarat\u0131r.<\/p>\n<h3>2.4 Kritik Sistemlerde Se\u00e7icilik: NEC ve Hayat G\u00fcvenli\u011fi Gereksinimleri<\/h3>\n<p>Ulusal Elektrik Kodu (NEC) Madde 700.28, acil durum sistemi a\u015f\u0131r\u0131 ak\u0131m cihazlar\u0131 i\u00e7in se\u00e7ici koordinasyonu zorunlu k\u0131lar ve \u201ca\u015f\u0131r\u0131 y\u00fckten mevcut maksimum ar\u0131za ak\u0131m\u0131na kadar mevcut t\u00fcm a\u015f\u0131r\u0131 ak\u0131mlar i\u00e7in a\u015f\u0131r\u0131 ak\u0131m koruma cihazlar\u0131n\u0131n ve bunlar\u0131n de\u011ferlerinin veya ayarlar\u0131n\u0131n se\u00e7imi ve kurulumuyla ger\u00e7ekle\u015ftirilen koordinasyon\u201d gerektirir. Sa\u011fl\u0131k tesisleri i\u00e7in NEC Madde 517 ve kritik operasyon g\u00fc\u00e7 sistemleri i\u00e7in Madde 708'de benzer gereksinimler bulunmaktad\u0131r.<\/p>\n<p>Bu kod gereksinimleri, ATS spesifikasyon stratejilerini temelden etkiler. Acil durum g\u00fc\u00e7 da\u011f\u0131t\u0131m\u0131nda koda uygun se\u00e7ici koordinasyon elde etmek i\u00e7in, m\u00fchendisler genellikle ATS'ye hizmet veren yukar\u0131 ak\u0131m kesicilerindeki anl\u0131k a\u00e7ma i\u015flevini devre d\u0131\u015f\u0131 b\u0131rakmal\u0131 veya \u00f6nemli \u00f6l\u00e7\u00fcde geciktirmelidir. Normalde 40kA'lik bir ar\u0131za s\u0131ras\u0131nda 1-2 \u00e7evrimde (16-32ms) a\u00e7acak olan bir ana kesici, a\u015fa\u011f\u0131 ak\u0131m acil durum besleyicileriyle koordine olmak i\u00e7in 0,3 saniye gecikmeye ayarlanabilir.<\/p>\n<p>Bu, koordinasyon paradoksunu yarat\u0131r: koda uygun se\u00e7icilik i\u00e7in gereken gecikmeler, ATS'yi standart 3 \u00e7evrim dayanma de\u011ferlerinin dayanamayaca\u011f\u0131 uzat\u0131lm\u0131\u015f ar\u0131za maruziyetine tabi tutar. <a href=\"https:\/\/test.viox.com\/tr\/circuit-breaker-ratings-icu-ics-icw-icm\/\">Transfer anahtar\u0131 k\u0131sa devre de\u011ferlerini anlama<\/a> acil durum sistemi tasar\u0131m\u0131nda iste\u011fe ba\u011fl\u0131 de\u011fil, zorunlu hale gelir. Koordinasyon gecikmesini atlatabilecek k\u0131sa s\u00fcreli ATS \u00fcniteleri belirtmeli veya zaman gecikmeleri olmadan do\u011fal se\u00e7icilik sa\u011flayan ak\u0131m s\u0131n\u0131rlay\u0131c\u0131 cihazlar (sigortalar) kullanarak koruma \u015femas\u0131n\u0131 yeniden tasarlamal\u0131s\u0131n\u0131z.<\/p>\n<p><strong>Uzman \u0130pucu<\/strong>: Acil durum sistemleri i\u00e7in kesici ayarlar\u0131n\u0131 kesinle\u015ftirmeden \u00f6nce, ATS k\u0131sa devre dayan\u0131m de\u011ferini bir k\u0131s\u0131tlama olarak i\u00e7eren eksiksiz bir koordinasyon \u00e7al\u0131\u015fmas\u0131 yap\u0131n. Bir\u00e7ok m\u00fchendis, se\u00e7tikleri kesici ayarlar\u0131yla NEC 700.28 uyumlulu\u011funu sa\u011flaman\u0131n, daha pahal\u0131 bir k\u0131sa s\u00fcreli transfer anahtar\u0131na y\u00fckseltme gerektirdi\u011fini \u00e7ok ge\u00e7 fark ediyor - uygun erken a\u015fama koordinasyon analizi ile \u00f6nlenebilecek bir de\u011fi\u015fiklik emri.<\/p>\n<h2>B\u00f6l\u00fcm 3: ATS K\u0131sa Devre De\u011ferleri ve Koordinasyon Gereksinimleri<\/h2>\n<h3>3.1 ATS Dayan\u0131m ve Kapama De\u011ferleri (WCR): Temel Bilgileri Anlamak<\/h3>\n<p>Her otomatik transfer anahtar\u0131 bir <strong>dayan\u0131m ve kapama de\u011feri (WCR)<\/strong> ta\u015f\u0131r ve bu de\u011fer, transfer anahtar\u0131n\u0131n belirtilen bir a\u015f\u0131r\u0131 ak\u0131m koruma cihaz\u0131 (OCPD) taraf\u0131ndan korundu\u011funda g\u00fcvenli bir \u015fekilde dayanabilece\u011fi maksimum olas\u0131 k\u0131sa devre ak\u0131m\u0131n\u0131 tan\u0131mlar. Bu de\u011fer, ba\u011f\u0131ms\u0131z bir ekipman yetene\u011fi de\u011fildir - ATS'nin belirli tip ve ayarlardaki yukar\u0131 ak\u0131m korumas\u0131yla test edilmi\u015f ve onaylanm\u0131\u015f bir kombinasyonunu temsil eder.<\/p>\n<p>Standart ATS de\u011ferleri tipik olarak <strong>3 \u00e7evrim dayan\u0131m testine<\/strong> (60Hz'de yakla\u015f\u0131k 50 milisaniye) dayan\u0131r ve bu s\u00fcre zarf\u0131nda transfer anahtar\u0131, yukar\u0131 ak\u0131m OCPD'si kontak kayna\u011f\u0131, yal\u0131t\u0131m ar\u0131zas\u0131 veya mekanik hasar olmadan a\u00e7\u0131l\u0131rken ar\u0131za ak\u0131m\u0131na dayanmal\u0131d\u0131r. Test, cihaz\u0131 mevcut ar\u0131zalara kapanma ve kontaklar kapal\u0131yken meydana gelen ar\u0131zalar dahil olmak \u00fczere en k\u00f6t\u00fc durum senaryolar\u0131na tabi tutan UL 1008 (Transfer Anahtar\u0131 Ekipman\u0131 Standard\u0131) protokollerini izler.<\/p>\n<p>ATS \u00fcreticisinin teknik verileri tipik olarak WCR'yi iki formatta sunar:<\/p>\n<p><strong>\u201cBelirli kesici\u201d de\u011ferleri<\/strong> ATS'yi a\u00e7\u0131k\u00e7a tan\u0131mlanm\u0131\u015f devre kesici modelleri, de\u011ferleri ve a\u00e7ma ayarlar\u0131yla kullan\u0131m i\u00e7in onaylar. \u00d6rne\u011fin: \u201cSquare D Model HDA36100, 100A \u00e7er\u00e7eve, manyetik a\u00e7ma 10\u00d7In'e ayarlanm\u0131\u015f, anl\u0131k a\u00e7ma etkinle\u015ftirilmi\u015fken 100kA SCCR\u201d. Bu, maksimum de\u011fer sa\u011flar ancak tasar\u0131m esnekli\u011fini s\u0131n\u0131rlar.<\/p>\n<p><strong>\u201cHerhangi bir kesici\u201d de\u011ferleri<\/strong> ATS'yi belirtilen \u00f6zellikleri kar\u015f\u0131layan herhangi bir devre kesiciyle kullan\u0131m i\u00e7in onaylar - tipik olarak anl\u0131k a\u00e7ma \u00f6zelli\u011fi ve 3 \u00e7evrimlik temizleme gerektirir. \u00d6rne\u011fin: \u201cAnl\u0131k a\u00e7ma ve 3 \u00e7evrimlik maksimum temizleme s\u00fcresi olan \u2265100A de\u011ferindeki herhangi bir devre kesici taraf\u0131ndan korundu\u011funda 42kA SCCR\u201d. Bu, tasar\u0131m esnekli\u011fi sunar ancak genellikle azalt\u0131lm\u0131\u015f ar\u0131za ak\u0131m\u0131 de\u011ferlerinde.<\/p>\n<p>Ticari ve hafif end\u00fcstriyel ATS \u00fcniteleri i\u00e7in yayg\u0131n WCR de\u011ferleri 10kA ila 100kA aras\u0131nda de\u011fi\u015fir ve \u00e7er\u00e7eve boyutuna ve yap\u0131s\u0131na ba\u011fl\u0131 olarak tipik de\u011ferler 22kA, 42kA, 65kA ve 85kA'd\u0131r:<\/p>\n<table style=\"width: 100%; border-collapse: collapse; margin-bottom: 20px;\" border=\"1\" cellspacing=\"0\" cellpadding=\"10\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th>ATS \u00c7er\u00e7eve Boyutu<\/th>\n<th>Tipik 3 \u00c7evrim WCR Aral\u0131\u011f\u0131<\/th>\n<th>Yayg\u0131n OCPD Gereksinimi<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>30-100A<\/strong><\/td>\n<td>10-35 kA<\/td>\n<td>Herhangi bir kesici, anl\u0131k a\u00e7ma<\/td>\n<\/tr>\n<tr>\n<td><strong>150-400A<\/strong><\/td>\n<td>22-65 kA<\/td>\n<td>Belirli kesici veya ak\u0131m s\u0131n\u0131rlay\u0131c\u0131 sigorta<\/td>\n<\/tr>\n<tr>\n<td><strong>600-1200A<\/strong><\/td>\n<td>42-100 kA<\/td>\n<td>Belgelenmi\u015f ayarlara sahip belirli kesici<\/td>\n<\/tr>\n<tr>\n<td><strong>1600-3000A<\/strong><\/td>\n<td>65-200 kA<\/td>\n<td>M\u00fchendislik koordinasyonu, genellikle sigortal\u0131<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>Uzman \u0130pucu<\/strong>: \u201cHerhangi bir kesici\u201d terimi biraz yan\u0131lt\u0131c\u0131d\u0131r - asl\u0131nda \u201c3 \u00e7evrim veya daha k\u0131sa s\u00fcrede temizleyen anl\u0131k a\u00e7maya sahip herhangi bir kesici\u201d anlam\u0131na gelir. Bu, se\u00e7ici koordinasyon sa\u011flamaya \u00e7al\u0131\u015f\u0131rken bir\u00e7ok m\u00fchendisi \u015fa\u015f\u0131rtan bir k\u0131s\u0131tlama olan k\u0131sa s\u00fcreli gecikmelerle yap\u0131land\u0131r\u0131lm\u0131\u015f Kategori B kesicileri hari\u00e7 tutar.<\/p>\n<h3>3.2 K\u0131sa S\u00fcreli ATS: Zaman Gecikmeli Koordinasyon i\u00e7in M\u00fchendislik \u00c7\u00f6z\u00fcmleri<\/h3>\n<p>Kas\u0131tl\u0131 zaman gecikmeleri kullanan Kategori B devre kesicilerle koordinasyonu sa\u011flamak i\u00e7in ATS \u00fcreticileri <strong>k\u0131sa s\u00fcreli transfer anahtarlar\u0131<\/strong> sunar ve bunlar, 30 \u00e7evrime (0,5 saniye) kadar uzat\u0131lm\u0131\u015f s\u00fcreler boyunca belirtilen ar\u0131za ak\u0131mlar\u0131na dayanacak \u015fekilde test edilmi\u015ftir. Bu \u00f6zel \u00fcniteler, standart transfer anahtarlar\u0131n\u0131 yok edecek s\u00fcrekli ar\u0131za ko\u015fullar\u0131 s\u0131ras\u0131nda kontak b\u00fct\u00fcnl\u00fc\u011f\u00fcn\u00fc, ark kesme yetene\u011fini ve yap\u0131sal kararl\u0131l\u0131\u011f\u0131 do\u011frulayan UL 1008 h\u00fck\u00fcmlerine g\u00f6re titiz testlerden ge\u00e7er.<\/p>\n<p>Tipik k\u0131sa s\u00fcreli de\u011ferler, daha y\u00fcksek ak\u0131mlar\u0131n daha k\u0131sa s\u00fcreler i\u00e7in tolere edildi\u011fi bir zaman-ak\u0131m ili\u015fkisini izler:<\/p>\n<ul>\n<li>0,3 saniye i\u00e7in 30kA (18 \u00e7evrim)<\/li>\n<li>0,2 saniye i\u00e7in 42kA (12 \u00e7evrim)<\/li>\n<li>0,1 saniye i\u00e7in 50kA (6 \u00e7evrim)<\/li>\n<\/ul>\n<p>K\u0131sa s\u00fcreli ATS \u00fcniteleri i\u00e7in m\u00fchendislik \u00f6d\u00fcnle\u015fimleri \u00f6nemlidir. Yap\u0131, geli\u015fmi\u015f kontak malzemeleri (genellikle g\u00fcm\u00fc\u015f-tungsten ala\u015f\u0131mlar\u0131), elektromanyetik itmeyi \u00f6nlemek i\u00e7in art\u0131r\u0131lm\u0131\u015f kontak bas\u0131nc\u0131 yay kuvvetleri, geli\u015fmi\u015f s\u00f6nd\u00fcrme \u00f6zelliklerine sahip sa\u011flam ark oluklar\u0131 ve elektrodinamik kuvvetlere dayanacak \u015fekilde g\u00fc\u00e7lendirilmi\u015f \u00e7er\u00e7eve yap\u0131lar\u0131 gerektirir. Bu geli\u015ftirmeler tipik olarak ATS maliyetini standart 3 \u00e7evrim de\u011ferlerine k\u0131yasla 30-60% art\u0131r\u0131r ve fiziksel boyutlar\u0131 20-40% art\u0131rabilir.<\/p>\n<p>Kullan\u0131labilirlik ba\u015fka bir k\u0131s\u0131tlamad\u0131r. \u00c7o\u011fu \u00fcretici, k\u0131sa s\u00fcreli de\u011ferleri, g\u00fc\u00e7lendirilmi\u015f yap\u0131n\u0131n bar\u0131nd\u0131r\u0131ld\u0131\u011f\u0131 daha b\u00fcy\u00fck \u00e7er\u00e7evelerle (\u2265400A) s\u0131n\u0131rlar. Baz\u0131 de\u011ferler, n\u00f6tr kutbun farkl\u0131 termal gerilim modelleriyle kar\u015f\u0131la\u015ft\u0131\u011f\u0131 d\u00f6rt kutuplu tasar\u0131mlarda tek tip k\u0131sa s\u00fcreli dayan\u0131m\u0131 elde etmenin karma\u015f\u0131kl\u0131\u011f\u0131 nedeniyle tek fazl\u0131 uygulamalar i\u00e7in yaln\u0131zca \u00fc\u00e7 kutuplu konfig\u00fcrasyonlarda mevcuttur.<\/p>\n<p><strong>K\u0131sa s\u00fcreli ATS ne zaman belirtilir<\/strong>: NEC Madde 700.28 (acil durum sistemleri), NEC Madde 517 kapsam\u0131ndaki sa\u011fl\u0131k tesisleri, tier III\/IV g\u00fcvenilirlik gereksinimlerine sahip veri merkezleri veya herhangi bir kurulumda se\u00e7ici koordinasyon gerektiren kritik uygulamalar <a href=\"https:\/\/test.viox.com\/tr\/wiring-automatic-transfer-switch-hybrid-inverter\/\">otomatik transfer anahtar\u0131 koordinasyonu<\/a> zaman gecikmeli kesicilerle kritik y\u00fcklere hizmet s\u00fcreklili\u011fini sa\u011flamak i\u00e7in gereklidir.<\/p>\n<h3>3.3 Devre Kesicilerle ATS Koordinasyonu: Karar \u00c7er\u00e7evesi<\/h3>\n<p>Bir ATS ile yukar\u0131 ak\u0131m OCPD'si aras\u0131ndaki koordinasyon ili\u015fkisi yaln\u0131zca ar\u0131za koruma yeterlili\u011fini de\u011fil, ayn\u0131 zamanda normal ve acil durum operasyonlar\u0131 s\u0131ras\u0131nda sistem g\u00fcvenilirli\u011fini de belirler. Karar \u00e7er\u00e7evesini anlamak, maliyetli spesifikasyon hatalar\u0131n\u0131 \u00f6nler.<\/p>\n<p><strong>Senaryo 1: Yukar\u0131 Ak\u0131m Kategori A Kesici (Anl\u0131k A\u00e7ma)<\/strong><\/p>\n<p>Bu, en basit ve en yayg\u0131n koordinasyon durumunu temsil eder. Yukar\u0131 ak\u0131m Kategori A kesici, 1-3 \u00e7evrimde (16-50ms) ar\u0131zalar\u0131 temizleyen anl\u0131k manyetik a\u00e7ma ile \u00e7al\u0131\u015f\u0131r. ATS spesifikasyon gereksinimi basittir:<\/p>\n<p><strong>ATS WCR \u2265 ATS konumunda mevcut ar\u0131za ak\u0131m\u0131<\/strong><\/p>\n<p>K\u0131sa devre hesaplamalar\u0131 ATS'de 35kA mevcut oldu\u011funu g\u00f6steriyorsa, se\u00e7ilen kesici tipi (belirli veya \u201cherhangi bir kesici\u201d) i\u00e7in minimum 35kA WCR'ye sahip bir ATS belirtin. Ar\u0131za standart 3 \u00e7evrimlik test penceresinde temizlendi\u011finden ATS'nin k\u0131sa s\u00fcreli de\u011ferine sahip olmas\u0131na gerek yoktur.<\/p>\n<p><strong>Senaryo 2: Zaman Gecikmeli Kategori B Kesici (Se\u00e7ici Koordinasyon)<\/strong><\/p>\n<p>Bu senaryo \u00f6nemli bir karma\u015f\u0131kl\u0131k getiriyor. Yukar\u0131 ak\u0131m Kategori B kesici, a\u015fa\u011f\u0131 ak\u0131m besleyicilerle koordine etmek i\u00e7in k\u0131sa s\u00fcreli gecikmeyle (tipik olarak 0,1 s ila 0,5 s) yap\u0131land\u0131r\u0131lm\u0131\u015ft\u0131r. Bu gecikme s\u0131ras\u0131nda ATS, kesicinin kesinti sa\u011flamadan tam ar\u0131za ak\u0131m\u0131na dayanmal\u0131d\u0131r.<\/p>\n<p>Spesifikasyon gereksinimleri \u015funlard\u0131r:<\/p>\n<ol>\n<li><strong>ATS'nin k\u0131sa s\u00fcreli de\u011feri olmal\u0131d\u0131r<\/strong> kesici gecikme ayar\u0131yla e\u015fle\u015fen veya a\u015fan<\/li>\n<li><strong>ATS k\u0131sa s\u00fcreli ak\u0131m de\u011feri \u2265 Mevcut ar\u0131za ak\u0131m\u0131<\/strong><\/li>\n<li><strong>Kesici Icw de\u011feri \u2265 Mevcut ar\u0131za ak\u0131m\u0131<\/strong> gecikme s\u00fcresi i\u00e7in<\/li>\n<li><strong>I2t enerjisini do\u011frulay\u0131n<sup>2<\/sup>: I2t<\/strong>cw(kesici) \u00d7 t(gecikme) VE I2t<sup>2<\/sup>t(ar\u0131za) &lt; I<sup>2<\/sup>cw(ATS) \u00d7 t(de\u011fer)<sup>2<\/sup>t(ar\u0131za) &lt; I<sup>2<\/sup>: Bir m\u00fchendis, a\u015fa\u011f\u0131 ak\u0131m koordinasyonu i\u00e7in 0,3 s k\u0131sa s\u00fcreli gecikmeyle yap\u0131land\u0131r\u0131lm\u0131\u015f 800A ACB taraf\u0131ndan korunan 600A'l\u0131k bir ATS belirtir. ATS konumunda mevcut ar\u0131za ak\u0131m\u0131, \u015febeke kayna\u011f\u0131ndan 42kA'd\u0131r. Gerekli \u00f6zellikler:<\/li>\n<\/ol>\n<p><strong>\u00d6rnek<\/strong>: An engineer specifies a 600A ATS protected by an 800A ACB configured with 0.3s short-time delay for downstream coordination. Available fault current at the ATS location is 42kA from the utility source. Required specifications:<\/p>\n<ul>\n<li>ATS: Minimum 42kA k\u0131sa s\u00fcreli dayan\u0131m 0.3s i\u00e7in (veya daha k\u0131sa s\u00fcrede daha y\u00fcksek de\u011fer, e\u011fer I\u00b2t analizi yeterli oldu\u011funu do\u011frularsa)<sup>2<\/sup>ACB: Icw \u2265 42kA minimum 0.3s i\u00e7in (Icw = 50kA 0.5s i\u00e7in yeterli olacakt\u0131r)<\/li>\n<li>Do\u011frulama: (42kA)\u00b2<\/li>\n<li>\u00d7 0.3s = 529 MJ\/s &lt; kesici ve ATS I\u00b2t kapasiteleri<sup>2<\/sup> Karar Fakt\u00f6r\u00fc<sup>2<\/sup>Kategori A Korumas\u0131<\/li>\n<\/ul>\n<table style=\"width: 100%; border-collapse: collapse; margin-bottom: 20px;\" border=\"1\" cellspacing=\"0\" cellpadding=\"10\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th>Kategori B Zaman Gecikmeli Korumas\u0131<\/th>\n<th>ATS Derecelendirme Tipi<\/th>\n<th>Standart 3-\u00e7evrim WCR<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>K\u0131sa s\u00fcreli derecelendirilmi\u015f WCR gerekli<\/strong><\/td>\n<td>Koordinasyon Karma\u015f\u0131kl\u0131\u011f\u0131<\/td>\n<td>Karma\u015f\u0131k\u2014I\u00b2t analizi gerektirir<\/td>\n<\/tr>\n<tr>\n<td><strong>K\u0131sa s\u00fcreli ATS i\u00e7in 30-60% daha y\u00fcksek<\/strong><\/td>\n<td>Basit<\/td>\n<td>Tasar\u0131m Riski<sup>2<\/sup>D\u00fc\u015f\u00fck\u2014standart uygulama<\/td>\n<\/tr>\n<tr>\n<td><strong>G\u00f6receli Maliyet<\/strong><\/td>\n<td>Daha d\u00fc\u015f\u00fck<\/td>\n<td>Daha y\u00fcksek\u2014detayl\u0131 \u00e7al\u0131\u015fma gerektirir<\/td>\n<\/tr>\n<tr>\n<td><strong>K\u00fc\u00e7\u00fck ticari, konut<\/strong><\/td>\n<td>Hastaneler, veri merkezleri, acil durum sistemleri<\/td>\n<td>3.4 Yayg\u0131n Koordinasyon Hatalar\u0131: Uygulamada Neler Yanl\u0131\u015f Gidiyor<\/td>\n<\/tr>\n<tr>\n<td><strong>Uygulama \u00d6rne\u011fi<\/strong><\/td>\n<td>\u015eekil 5: Koordinasyon uyumsuzlu\u011funun sonu\u00e7lar\u0131n\u0131 g\u00f6steren yan yana analiz. Sol: K\u0131sa s\u00fcreli derecelendirilmi\u015f bir ATS, gecikmeli ar\u0131za giderme i\u015fleminden sa\u011flam bir \u015fekilde kurtulur. Sa\u011f: Standart bir 3-\u00e7evrim ATS, 50ms derecelendirme penceresini a\u015fan ar\u0131za ak\u0131mlar\u0131na maruz kald\u0131\u011f\u0131nda feci \u015fekilde ba\u015far\u0131s\u0131z olur.<\/td>\n<td>Y\u00fczlerce ATS kurulumunu ve koordinasyon \u00e7al\u0131\u015fmas\u0131n\u0131 inceledikten sonra, g\u00fcvenli\u011fi ve g\u00fcvenilirli\u011fi tehlikeye atan birka\u00e7 tekrar eden hata ortaya \u00e7\u0131kmaktad\u0131r:<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Hata #1: Zaman gecikmeli yukar\u0131 ak\u0131m kesici ile standart 3-\u00e7evrim ATS kullanmak<\/h3>\n<figure style=\"margin: 30px 0; text-align: center;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto; display: block; margin: 0 auto;\" src=\"https:\/\/img.viox.com\/Comparison-diagram-illustrating-correct-vs-incorrect-ATS-circuit-breaker-coordination-showing-proper-short-time-rated-ATS-versus-standard-ATS-failure-scenarios---VIOX-Electric.webp\" alt=\"Comparison diagram illustrating correct versus incorrect ATS circuit breaker coordination scenarios\" \/><figcaption style=\"font-style: italic; color: #555; margin-top: 10px; font-size: 0.9em;\">. Bu, en s\u0131k kar\u015f\u0131la\u015f\u0131lan hatad\u0131r. Bir m\u00fchendis, 0.2s kesici gecikmesi gerektiren se\u00e7ici koordinasyon belirtir, ancak ATS spesifikasyonunu standarttan k\u0131sa s\u00fcreli derecelendirilmi\u015fe y\u00fckseltmeyi ba\u015faramaz. \u0130lk \u00f6nemli ar\u0131za s\u0131ras\u0131nda, ATS kontaklar\u0131 kapan\u0131r veya ark hasar\u0131 g\u00f6r\u00fcr, \u00e7\u00fcnk\u00fc 200ms boyunca ar\u0131za ak\u0131m\u0131na maruz kalm\u0131\u015flard\u0131r\u2014derecelendirilmi\u015f dayan\u0131m s\u00fcrelerinin d\u00f6rt kat\u0131. Sistem art\u0131k ar\u0131zal\u0131 bir transfer anahtar\u0131na ve potansiyel olarak acil durum g\u00fcc\u00fc yetene\u011fine sahip de\u011fildir.<\/figcaption><\/figure>\n<p>Hata #2: Saha i\u015faretlerinde yetersiz SCCR dok\u00fcmantasyonu<\/p>\n<p><strong>. NEC 110.24, servis ekipman\u0131nda mevcut ar\u0131za ak\u0131m\u0131n\u0131n saha i\u015faretlemesini gerektirir. ATS kurulumlar\u0131 i\u00e7in, saha i\u015faretlemesi ATS'nin yukar\u0131 ak\u0131m OCPD \u00f6zelliklerine olan ba\u011f\u0131ml\u0131l\u0131\u011f\u0131n\u0131 hesaba katmal\u0131d\u0131r. Bir\u00e7ok kurulum, ATS derecelendirmesinin yaln\u0131zca belirli kesici ayarlar\u0131yla ge\u00e7erli oldu\u011funu belgelemeden yaln\u0131zca hesaplanan ar\u0131za ak\u0131m\u0131n\u0131 yanl\u0131\u015f bir \u015fekilde i\u015faretler. Bak\u0131m personeli daha sonra kesici ayarlar\u0131n\u0131 de\u011fi\u015ftirdi\u011finde (belki daha \u00f6nce devre d\u0131\u015f\u0131 b\u0131rak\u0131lm\u0131\u015f olan anl\u0131k a\u00e7may\u0131 etkinle\u015ftirerek), ATS derecelendirmesini fark\u0131nda olmadan ge\u00e7ersiz k\u0131larlar.<\/strong>. Hata #3: Acil durum sistemleri i\u00e7in NEC 700.28 se\u00e7ici koordinasyon gereksinimlerini g\u00f6z ard\u0131 etmek.<\/p>\n<p><strong>. M\u00fchendisler bazen standart da\u011f\u0131t\u0131m koruma uygulamalar\u0131n\u0131, NEC 700.28'in se\u00e7ici koordinasyonu zorunlu k\u0131ld\u0131\u011f\u0131n\u0131 fark etmeden acil durum sistemlerine uygularlar. Ortaya \u00e7\u0131kan tasar\u0131m, t\u00fcm kesicilerde anl\u0131k a\u00e7ma kullan\u0131r (se\u00e7icilik yok) veya se\u00e7icili\u011fi yaln\u0131zca a\u015f\u0131r\u0131 y\u00fck aral\u0131\u011f\u0131nda elde eder, ancak k\u0131sa devre ko\u015fullar\u0131nda de\u011fil (k\u0131smi se\u00e7icilik). Denetim s\u0131ras\u0131nda kod uyumlulu\u011fu ba\u015far\u0131s\u0131zl\u0131klar\u0131 maliyetli yeniden tasar\u0131m gerektirir.<\/strong>. Hata #4: Jenerat\u00f6r ve \u015febeke kayna\u011f\u0131 empedans farkl\u0131l\u0131klar\u0131n\u0131 hesaba katmamak.<\/p>\n<p><strong>. Bir bekleme jenerat\u00f6r\u00fcnden elde edilebilen ar\u0131za ak\u0131m\u0131, jenerat\u00f6r\u00fcn ge\u00e7ici alt\u0131 reaktans\u0131 nedeniyle tipik olarak \u015febeke servisinden 4-10 kat daha d\u00fc\u015f\u00fckt\u00fcr. 65kA dereceli bir kesici ile korunan bir ATS, \u015febekeden 52kA g\u00f6rebilir, ancak jenerat\u00f6rden yaln\u0131zca 15kA g\u00f6rebilir. M\u00fchendisler bazen ATS derecelendirmelerini yaln\u0131zca \u015febeke ar\u0131za seviyelerine g\u00f6re belirtirler, daha sonra jenerat\u00f6r y\u00fck testi s\u0131ras\u0131nda \u015funu ke\u015ffederler:<\/strong>. jenerat\u00f6r kayna\u011f\u0131 koordinasyonu.<\/p>\n<p><strong>ayr\u0131 analiz gerektiren farkl\u0131 zaman-ak\u0131m koordinasyon zorluklar\u0131 yarat\u0131r.<\/strong>. : Kritik bir uygulama i\u00e7in herhangi bir ATS spesifikasyonunu tamamlamadan \u00f6nce, hem \u015febeke hem de jenerat\u00f6r ar\u0131za kaynaklar\u0131n\u0131 i\u00e7eren eksiksiz bir koordinasyon \u00e7al\u0131\u015fmas\u0131 yap\u0131n, kesici gecikme ayarlar\u0131 dahil t\u00fcm koruyucu cihaz zaman-ak\u0131m e\u011frilerini modelleyin, en k\u00f6t\u00fc senaryolar i\u00e7in ATS dayan\u0131m yeteneklerini do\u011frulay\u0131n ve do\u011frulanm\u0131\u015f koordinasyonu koruyan OCPD ayarlar\u0131n\u0131 belgeleyin. Bu \u00e7al\u0131\u015fma lisansl\u0131 bir PE taraf\u0131ndan damgalanmal\u0131 ve proje kapan\u0131\u015f belgelerine dahil edilmelidir. <a href=\"https:\/\/test.viox.com\/tr\/wiring-automatic-transfer-switch-hybrid-inverter\/\">B\u00f6l\u00fcm 4: Pratik Spesifikasyon ve Tasar\u0131m Stratejileri<\/a> 4.1 Ad\u0131m Ad\u0131m Koordinasyon S\u00fcreci: M\u00fchendislik Metodolojisi.<\/p>\n<p><strong>Uzman \u0130pucu<\/strong>Ba\u015far\u0131l\u0131 ATS-kesici koordinasyonu, kan\u0131tlanm\u0131\u015f bir metodolojiyi izleyen sistematik analiz gerektirir. \u0130\u015fte g\u00fcvenilir sonu\u00e7lar sa\u011flayan m\u00fchendislik s\u00fcreci:.<\/p>\n<h2>Ad\u0131m 1: ATS Konumunda Mevcut Ar\u0131za Ak\u0131m\u0131n\u0131 Hesaplay\u0131n<\/h2>\n<h3>Servis giri\u015finde, transformat\u00f6r sekonderinde veya jenerat\u00f6r terminallerinde mevcut ar\u0131za ak\u0131m\u0131n\u0131 kullanarak k\u0131sa devre analizi yap\u0131n, ard\u0131ndan kablo empedans\u0131, transformat\u00f6r empedans\u0131 ve kaynak empedans\u0131n\u0131 hesaba katarak \u00f6nerilen ATS konumundaki ar\u0131za ak\u0131m\u0131n\u0131 hesaplay\u0131n. Hem \u015febeke hem de jenerat\u00f6r kaynaklar\u0131n\u0131 ayr\u0131 ayr\u0131 analiz edin, \u00e7\u00fcnk\u00fc bunlar \u00f6nemli \u00f6l\u00e7\u00fcde farkl\u0131 ar\u0131za ak\u0131m\u0131 seviyeleri sunar. IEEE 141'e (K\u0131rm\u0131z\u0131 Kitap) g\u00f6re end\u00fcstri standard\u0131 yaz\u0131l\u0131m\u0131 (SKM PowerTools, ETAP, EASYPOWER) veya el hesaplama y\u00f6ntemleri kullan\u0131n.<\/h3>\n<p>Ad\u0131m 2: Se\u00e7ici Koordinasyon Gereksinimlerini Belirleyin<\/p>\n<p><strong>Uygulanabilir kodlar\u0131 (NEC Makaleleri 700, 517, 708), sahibinin gereksinimleri spesifikasyonlar\u0131n\u0131 ve operasyonel kritiklik analizini inceleyin. Se\u00e7ici koordinasyonun zorunlu (acil durum sistemleri, sa\u011fl\u0131k hizmetleri), \u00f6nerilen (kritik s\u00fcre\u00e7ler) veya iste\u011fe ba\u011fl\u0131 (genel da\u011f\u0131t\u0131m) olup olmad\u0131\u011f\u0131n\u0131 belirleyin. Gerekli koordinasyon seviyesini belgeleyin: toplam se\u00e7icilik (t\u00fcm ar\u0131za ak\u0131mlar\u0131) veya k\u0131smi se\u00e7icilik (se\u00e7icilik s\u0131n\u0131r\u0131na kadar).<\/strong><\/p>\n<p>Ad\u0131m 3: Yukar\u0131 Ak\u0131m OCPD Tipini ve Ayarlar\u0131n\u0131 Se\u00e7in.<\/p>\n<p><strong>Koordinasyon gereksinimlerine g\u00f6re, uygun koruma stratejisini se\u00e7in:<\/strong><\/p>\n<p>Anl\u0131k a\u00e7ma kabul edilebilir ise.<\/p>\n<p><strong>: Kategori A kesici uygundur\u2014daha basit ve daha d\u00fc\u015f\u00fck maliyetli. Standart ATS derecelendirme do\u011frulamas\u0131 ile 4. Ad\u0131ma ge\u00e7in.<\/strong><\/p>\n<p>Se\u00e7icilik i\u00e7in zaman gecikmesi gerekliyse<\/p>\n<ul>\n<li><strong>: Kategori B kesici gereklidir. A\u015fa\u011f\u0131 ak\u0131m cihazlarla koordinasyon \u00e7al\u0131\u015fmas\u0131na g\u00f6re gerekli gecikme ayarlar\u0131n\u0131 (0.1s, 0.2s, 0.4s) belirleyin. Kesicinin mevcut ar\u0131za ak\u0131m\u0131nda se\u00e7ilen gecikme i\u00e7in yeterli Icw derecesine sahip oldu\u011funu do\u011frulay\u0131n. K\u0131sa s\u00fcreli derecelendirilmi\u015f ATS'nin gerekli olaca\u011f\u0131n\u0131 unutmay\u0131n.<\/strong>Ad\u0131m 4: ATS Derecesini OCPD \u00d6zellikleriyle E\u015fle\u015ftirin.<\/li>\n<li><strong>OCPD se\u00e7imini ATS dereceleriyle \u00e7apraz referanslay\u0131n:<\/strong>Zaman gecikmeli OCPD \u2192 K\u0131sa s\u00fcreli derecelendirilmi\u015f ATS gerekli.<\/li>\n<\/ul>\n<p><strong>: K\u0131sa s\u00fcreli dayan\u0131m derecesi \u2265 mevcut ar\u0131za ak\u0131m\u0131 ve zaman derecesi \u2265 kesici gecikme ayar\u0131 olan ATS'yi se\u00e7in. \u00d6rnek: 0.2s kesici gecikmesi, minimum 0.2s k\u0131sa s\u00fcreli derecelendirmeye sahip ATS gerektirir (veya I\u00b2t analizi do\u011fruluyorsa daha k\u0131sa s\u00fcrede daha y\u00fcksek ak\u0131m derecesi).<\/strong><\/p>\n<p>Anl\u0131k OCPD \u2192 Standart 3-\u00e7evrim ATS kabul edilebilir<\/p>\n<ul>\n<li><strong>: OCPD se\u00e7iminizle e\u015fle\u015fen belirli veya \"herhangi bir kesici\" derecelendirme kategorisi i\u00e7in ATS WCR \u2265 mevcut ar\u0131za ak\u0131m\u0131n\u0131 do\u011frulay\u0131n.<\/strong>Ad\u0131m 5: A\u015fa\u011f\u0131 Ak\u0131m Koordinasyon Zincirini Do\u011frulay\u0131n<sup>2<\/sup>\u015eebeke servisinden ATS'ye ve y\u00fck besleyicilerine kadar t\u00fcm da\u011f\u0131t\u0131m sisteminin her seviyede koordinasyonu s\u00fcrd\u00fcrd\u00fc\u011f\u00fcn\u00fc do\u011frulay\u0131n. Serideki t\u00fcm cihazlar i\u00e7in zaman-ak\u0131m e\u011frilerini \u00e7izin. Yeterli zaman ayr\u0131m\u0131n\u0131 (biti\u015fik seviyeler aras\u0131nda minimum 0.1s) ve ak\u0131m b\u00fcy\u00fckl\u00fc\u011f\u00fc ayr\u0131m\u0131n\u0131 (ak\u0131m se\u00e7icili\u011fi i\u00e7in oran \u2265 1.6:1) do\u011frulay\u0131n. \u00c7al\u0131\u015fma ar\u0131za ak\u0131m\u0131 aral\u0131\u011f\u0131nda hi\u00e7bir e\u011fri kesi\u015fiminin olu\u015fmad\u0131\u011f\u0131n\u0131 kontrol edin.<\/li>\n<li><strong>4.2 M\u00fchendislik En \u0130yi Uygulamalar\u0131: Profesyonel Standartlar<\/strong>Bu uygulamalar\u0131 uygulamak, profesyonel m\u00fchendisli\u011fi spesifikasyon ruletinden ay\u0131r\u0131r:.<\/li>\n<\/ul>\n<p><strong>ATS ve OCPD'leri belirtmeden \u00f6nce her zaman kapsaml\u0131 bir k\u0131sa devre \u00e7al\u0131\u015fmas\u0131 yap\u0131n<\/strong><\/p>\n<p>. Asla kurala dayal\u0131 tahminlere veya \"tipik\" de\u011ferlere g\u00fcvenmeyin. Mevcut ar\u0131za ak\u0131m\u0131, \u015febeke kapasitesine, transformat\u00f6r boyutuna, kablo uzunlu\u011funa ve kaynak empedans\u0131na ba\u011fl\u0131 olarak \u00f6nemli \u00f6l\u00e7\u00fcde de\u011fi\u015fir. Empedans hesaplamas\u0131nda 2% hatas\u0131, ar\u0131za ak\u0131m\u0131nda 30% hatas\u0131 \u00fcretebilir ve potansiyel olarak t\u00fcm koruyucu cihaz derecelendirmelerini ge\u00e7ersiz k\u0131labilir.<\/p>\n<h3>\u0130n\u015faat belgelerinde OCPD tipi, ayarlar\u0131 ve ATS derecelendirme ili\u015fkisini belgeleyin<\/h3>\n<p>. A\u00e7\u0131k\u00e7a belirten bir koruma koordinasyon raporu olu\u015fturun: \"ATS Model XYZ, 65kA SCCR derecesine sahiptir, YALNIZCA Kesici Model ABC, 800A \u00e7er\u00e7eve, \u015fu ayarlarla korundu\u011funda ge\u00e7erlidir: Ir=0.9\u00d7In, Isd=8\u00d7Ir, tsd=0.2s, Ii=KAPALI (anl\u0131k devre d\u0131\u015f\u0131).\" Bu bilgileri tek hat \u015femalar\u0131na ve panel \u00e7izelgelerine ekleyin. NEC 110.24'e g\u00f6re ekipman\u0131 ba\u011f\u0131ml\u0131l\u0131k notuyla birlikte sahada i\u015faretleyin.<\/p>\n<p><strong>Gelecekteki y\u00fck b\u00fcy\u00fcmesini ve ar\u0131za seviyesi de\u011fi\u015fikliklerini g\u00f6z \u00f6n\u00fcnde bulundurun<\/strong>. Never rely on rule-of-thumb estimates or \u201ctypical\u201d values. Available fault current varies dramatically based on utility capacity, transformer size, cable length, and source impedance. A 2% error in impedance calculation can produce a 30% error in fault current, potentially invalidating all protective device ratings.<\/p>\n<p><strong>Document OCPD type, settings, and ATS rating relationship in construction documents<\/strong>. Create a protection coordination report that explicitly states: \u201cATS Model XYZ rated 65kA SCCR is valid ONLY when protected by Breaker Model ABC, 800A frame, with settings: Ir=0.9\u00d7In, Isd=8\u00d7Ir, tsd=0.2s, Ii=OFF (instantaneous disabled).\u201d Include this information on one-line diagrams and panel schedules. Field-mark equipment per NEC 110.24 with dependency noted.<\/p>\n<p><strong>Consider future load growth and fault level changes<\/strong>. \u015eebeke ar\u0131za ak\u0131m\u0131, trafo merkezleri y\u00fckseltilirse veya yak\u0131na ek \u00fcretim ba\u011flan\u0131rsa artabilir. Ekipman de\u011fi\u015ftirmeye gerek kalmadan makul gelecekteki b\u00fcy\u00fcmeyi kar\u015f\u0131lamak i\u00e7in hesaplanan de\u011ferlerin 20-30% \u00fczerinde bir marjla koruma cihaz\u0131 de\u011ferlerini belirtin.<\/p>\n<p><strong>\u00dcretici koordinasyon tablolar\u0131n\u0131 ve test verilerini kullan\u0131n<\/strong>. Yaln\u0131zca e\u011fri \u00e7izimine dayanarak koordinasyonun var oldu\u011funu varsaymay\u0131n\u2014enerji se\u00e7icili\u011fi ve ak\u0131m s\u0131n\u0131rlama \u00f6zellikleri, zaman-ak\u0131m e\u011frilerinin ortaya \u00e7\u0131karmad\u0131\u011f\u0131 \u015fekillerde koordinasyonu etkiler. Test edilmi\u015f kombinasyonlar\u0131 belgeleyen \u00fcretici taraf\u0131ndan sa\u011flanan se\u00e7icilik tablolar\u0131na bak\u0131n veya \u00f6zel uygulamalar i\u00e7in fabrika test verileri talep edin.<\/p>\n<p><strong>Sahada kurulu OCPD ayarlar\u0131n\u0131n tasar\u0131m amac\u0131na uygun oldu\u011funu do\u011frulay\u0131n<\/strong>. \u0130n\u015faat kalite kontrol\u00fc, elektronik a\u00e7ma \u00fcnitelerinin fabrika varsay\u0131lanlar\u0131nda b\u0131rak\u0131lmay\u0131p koordinasyon \u00e7al\u0131\u015fmas\u0131na g\u00f6re programland\u0131\u011f\u0131n\u0131n do\u011frulanmas\u0131n\u0131 i\u00e7ermelidir. Tek bir yanl\u0131\u015f gecikme ayar\u0131, aylarca s\u00fcren m\u00fchendislik koordinasyon analizini ge\u00e7ersiz k\u0131lar.<\/p>\n<h3>4.3 Maliyet-Fayda Analizi: Ak\u0131ll\u0131 Takaslar Yapmak<\/h3>\n<p>K\u0131sa s\u00fcreli nominal ATS \u00fcniteleri, e\u015fde\u011fer standart nominal modellere g\u00f6re tipik olarak 30-60% daha y\u00fcksek fiyatlara sahiptir. Bu yat\u0131r\u0131m ne zaman m\u00fchendislik ve ekonomik olarak mant\u0131kl\u0131 olur?<\/p>\n<p><strong>Zorunlu yat\u0131r\u0131m senaryolar\u0131<\/strong> k\u0131sa s\u00fcreli nominal ATS'nin pazarl\u0131k konusu olmad\u0131\u011f\u0131 durumlarda:<\/p>\n<ul>\n<li>NEC 700.28 se\u00e7ici koordinasyon uyumlulu\u011fu gerektiren acil durum g\u00fc\u00e7 sistemleri<\/li>\n<li>NEC Madde 517 kapsam\u0131ndaki sa\u011fl\u0131k tesisleri (hasta bak\u0131m alanlar\u0131)<\/li>\n<li>NEC Madde 708'e g\u00f6re kritik operasyon g\u00fc\u00e7 sistemleri (COPS)<\/li>\n<li>Tier III\/IV g\u00fcvenilirlik \u00f6zelliklerine sahip g\u00f6rev a\u00e7\u0131s\u0131ndan kritik veri merkezleri<\/li>\n<li>Uygulanabilir kodlar\u0131n veya s\u00f6zle\u015fme \u00f6zelliklerinin a\u00e7\u0131k\u00e7a se\u00e7ici koordinasyon gerektirdi\u011fi herhangi bir uygulama<\/li>\n<\/ul>\n<p><strong>Y\u00fcksek de\u011ferli yat\u0131r\u0131m senaryolar\u0131<\/strong> k\u0131sa s\u00fcreli nominal ATS'nin operasyonel fayda sa\u011flad\u0131\u011f\u0131 durumlarda:<\/p>\n<ul>\n<li>\u00dcretim duru\u015f s\u00fcresinin $10.000\/saati a\u015ft\u0131\u011f\u0131 \u00fcretim tesisleri<\/li>\n<li>Ar\u0131za izolasyonunun \u00e7oklu kirac\u0131 kesintilerini \u00f6nledi\u011fi \u00e7e\u015fitli kirac\u0131lara sahip ticari binalar<\/li>\n<li>Ar\u0131zalar s\u0131ras\u0131nda k\u0131smi \u00e7al\u0131\u015fmay\u0131 s\u00fcrd\u00fcrmenin y\u00fcksek de\u011fere sahip oldu\u011fu kamp\u00fcs da\u011f\u0131t\u0131m sistemleri<\/li>\n<li>Birden fazla jenerat\u00f6r setinin bulundu\u011fu tesisler <a href=\"https:\/\/test.viox.com\/tr\/wiring-automatic-transfer-switch-hybrid-inverter\/\">jenerat\u00f6r paralelleme stratejileri<\/a> koordine edilmi\u015f korumadan faydalan\u0131r<\/li>\n<\/ul>\n<p><strong>Alternatif stratejiler<\/strong> daha d\u00fc\u015f\u00fck maliyetle yeterli koruma sa\u011flayabilecek:<\/p>\n<p><strong>Yukar\u0131 ak\u0131\u015fta ak\u0131m s\u0131n\u0131rlay\u0131c\u0131 sigortalar<\/strong>: S\u0131n\u0131f J, L veya RK1 sigortalar, zaman gecikmeleri olmadan enerji s\u0131n\u0131rlama \u00f6zellikleri sayesinde do\u011fal se\u00e7icilik sa\u011flar. ATS'nin yukar\u0131 ak\u0131\u015f\u0131ndaki sigortal\u0131 bir ay\u0131r\u0131c\u0131, m\u00fckemmel koordinasyon sa\u011flarken standart nominal ATS kullan\u0131m\u0131n\u0131 sa\u011flayabilir. Takas: Sigortalar, \u00e7al\u0131\u015ft\u0131ktan sonra de\u011fi\u015ftirilmesi gereken tek at\u0131\u015fl\u0131k cihazlard\u0131r, devre kesiciler ise s\u0131f\u0131rlan\u0131r.<\/p>\n<p><strong>Daha y\u00fcksek empedans kaynaklar\u0131<\/strong>: Kas\u0131tl\u0131 olarak daha y\u00fcksek empedansa sahip jenerat\u00f6rler veya transformat\u00f6rler belirtmek, ATS'deki mevcut ar\u0131za ak\u0131m\u0131n\u0131 azalt\u0131r ve bu da m\u00fctevaz\u0131 devre kesici gecikmeleriyle bile standart derecelendirmenin yeterli olmas\u0131na olanak tan\u0131r. Takas: Daha y\u00fcksek empedans, voltaj d\u00fc\u015f\u00fc\u015f\u00fcn\u00fc art\u0131r\u0131r ve motor \u00e7al\u0131\u015ft\u0131rma yetene\u011fini etkileyebilir.<\/p>\n<p><strong>B\u00f6lge se\u00e7ici kilitleme (ZSI)<\/strong>: Devre kesici a\u00e7ma \u00fcniteleri aras\u0131ndaki geli\u015fmi\u015f ileti\u015fim, ar\u0131zalar s\u0131ras\u0131nda a\u015fa\u011f\u0131 ak\u0131\u015f devre kesicilerinin yukar\u0131 ak\u0131\u015f cihazlar\u0131na \u201ck\u0131s\u0131tlama\u201d sinyalleri g\u00f6nderdi\u011fi ak\u0131ll\u0131 se\u00e7icili\u011fi sa\u011flar. Bu, gerekli gecikme s\u00fcrelerini azaltabilir ve potansiyel olarak standart ATS derecelendirmelerine izin verebilir. Takas: Artan sistem karma\u015f\u0131kl\u0131\u011f\u0131 ve daha y\u00fcksek devre kesici maliyetleri.<\/p>\n<h3>4.4 VIOX M\u00fchendislik Deste\u011fi: Teknik Kaynaklar ve Koordinasyon Hizmetleri<\/h3>\n<p>VIOX Electric, ATS-devre kesici koordinasyonunun bekleme g\u00fc\u00e7 sistemi tasar\u0131m\u0131n\u0131n teknik olarak en zorlu y\u00f6nlerinden birini temsil etti\u011fini kabul etmektedir. M\u00fchendislik ekibimiz, spesifikasyonlar\u0131n\u0131z\u0131n hem g\u00fcvenlik uyumlulu\u011funu hem de operasyonel g\u00fcvenilirli\u011fi sa\u011flamak i\u00e7in kapsaml\u0131 destek hizmetleri sunmaktad\u0131r.<\/p>\n<p>Teknik kaynak kitapl\u0131\u011f\u0131m\u0131z, a\u015fa\u011f\u0131dakileri kapsayan ayr\u0131nt\u0131l\u0131 uygulama k\u0131lavuzlar\u0131 i\u00e7erir <a href=\"https:\/\/test.viox.com\/tr\/circuit-breaker-ratings-icu-ics-icw-icm\/\">devre kesici derecelendirme temelleri<\/a>, <a href=\"https:\/\/test.viox.com\/tr\/ats-troubleshooting-guide\/\">transfer anahtar\u0131 se\u00e7im kriterleri<\/a>ve <a href=\"https:\/\/test.viox.com\/tr\/wiring-automatic-transfer-switch-hybrid-inverter\/\">jenerat\u00f6r-ATS entegrasyon stratejileri<\/a>. Bu kaynaklar, bilin\u00e7li ekipman se\u00e7imi ve sistem tasar\u0131m\u0131 i\u00e7in gerekli teknik derinli\u011fi sa\u011flar.<\/p>\n<p>Karma\u015f\u0131k koordinasyon zorluklar\u0131 i\u00e7in VIOX, k\u0131sa devre analizi do\u011frulamas\u0131, zaman-ak\u0131m koordinasyon \u00e7al\u0131\u015fmalar\u0131, SCCR do\u011frulamas\u0131 ve NEC se\u00e7ici koordinasyon uyumluluk incelemesini i\u00e7eren m\u00fchendislik dan\u0131\u015fmanl\u0131k hizmetleri sunmaktad\u0131r. Uygulama m\u00fchendislerimiz, \u00f6zel uygulama gereksinimleriniz i\u00e7in g\u00fcvenlik, g\u00fcvenilirlik ve maliyet etkinli\u011fini dengeleyen koruma \u015femalar\u0131 geli\u015ftirmek i\u00e7in do\u011frudan tasar\u0131m ekibinizle birlikte \u00e7al\u0131\u015f\u0131r.<\/p>\n<p>Transfer anahtar\u0131 koordinasyon zorluklar\u0131n\u0131z\u0131 g\u00f6r\u00fc\u015fmek ve m\u00fchendislik kaynaklar\u0131m\u0131za eri\u015fmek i\u00e7in VIOX teknik deste\u011fiyle ileti\u015fime ge\u00e7in. Kritik y\u00fckler kesintisiz \u00e7al\u0131\u015fma talep etti\u011finde bekleme g\u00fc\u00e7 sistemlerinizin g\u00fcvenilir performans sunmas\u0131n\u0131 sa\u011flamaya kararl\u0131y\u0131z.<\/p>\n<hr \/>\n<h2>SSS<\/h2>\n<p><strong>S1: Kategori A ve Kategori B devre kesiciler aras\u0131ndaki fark nedir?<\/strong><\/p>\n<p>Kategori A devre kesiciler anl\u0131k a\u00e7ma ile \u00e7al\u0131\u015f\u0131r ve kas\u0131tl\u0131 k\u0131sa s\u00fcreli gecikme olmaz\u2014ar\u0131zalar\u0131 m\u00fcmk\u00fcn oldu\u011funca \u00e7abuk (tipik olarak 10-20 ms) gidermek i\u00e7in tasarlanm\u0131\u015ft\u0131r. Kategori B devre kesiciler, zamana dayal\u0131 se\u00e7ici koordinasyonu sa\u011flamak i\u00e7in ayarlanabilir k\u0131sa s\u00fcreli gecikmelerle (0,05-1,0 s) yap\u0131land\u0131r\u0131labilir ve gecikme s\u00fcresi boyunca ar\u0131za ak\u0131mlar\u0131na dayanma yeteneklerini onaylayan Icw derecelendirmeleri ta\u015f\u0131rlar. Kategori A devre kesiciler besleyiciler ve bran\u015f devreleri i\u00e7in kullan\u0131l\u0131r; Kategori B devre kesiciler, koordinasyonun gerekli oldu\u011fu ana giri\u015fler ve bara ba\u011flant\u0131 konumlar\u0131nda kullan\u0131l\u0131r.<\/p>\n<p><strong>S2: T\u00fcm otomatik transfer \u015falterleri Icw de\u011ferine sahip midir?<\/strong><\/p>\n<p>Hay\u0131r. Yaln\u0131zca k\u0131sa s\u00fcreli nominal ATS \u00fcniteleri Icw spesifikasyonlar\u0131 ta\u015f\u0131r. Standart ATS \u00fcniteleri 3 \u00e7evrimlik (50 ms) dayan\u0131m i\u00e7in derecelendirilmi\u015ftir ve ar\u0131zalar\u0131 3 \u00e7evrimlik pencerede gideren anl\u0131k a\u00e7ma korumas\u0131yla kullan\u0131m i\u00e7in tasarland\u0131klar\u0131ndan Icw derecelendirmelerine sahip de\u011fildir. Uygulaman\u0131z\u0131n zaman gecikmeli devre kesicilerle koordinasyon gerektirmesi durumunda, koordinasyon gecikme gereksinimlerinize uygun Icw derecelendirmesine sahip k\u0131sa s\u00fcreli nominal bir ATS belirtmelisiniz.<\/p>\n<p><strong>S3: Gecikmeli devre kesici ile standart 3 \u00e7evrimli bir ATS kullanabilir miyim?<\/strong><\/p>\n<p>Hay\u0131r\u2014bu, ATS ar\u0131zas\u0131na yol a\u00e7an tehlikeli bir uyumsuzluktur. Standart bir 3 \u00e7evrimli ATS, yukar\u0131 ak\u0131m kesicisi a\u00e7\u0131lana kadar yakla\u015f\u0131k 50 milisaniye boyunca ar\u0131za ak\u0131m\u0131na dayanacak \u015fekilde test edilmi\u015ftir. Yukar\u0131 ak\u0131m kesiciyi se\u00e7ici koordinasyon i\u00e7in 0,2 saniye (200 milisaniye) gecikmeyle yap\u0131land\u0131r\u0131rsan\u0131z, ATS, nominal dayanma s\u00fcresinin d\u00f6rt kat\u0131 s\u00fcreyle ar\u0131za ak\u0131m\u0131na maruz kal\u0131r ve bu da kontak kayna\u011f\u0131na, ark hasar\u0131na veya feci ar\u0131zaya neden olur. Zaman gecikmeli kesiciler, k\u0131sa s\u00fcreli dayan\u0131m de\u011ferine sahip ATS \u00fcniteleri gerektirir.<\/p>\n<p><strong>S4: \u015ealter koordinasyonu s\u0131ras\u0131nda ATS'min k\u0131sa devre ak\u0131m\u0131na dayan\u0131p dayanamayaca\u011f\u0131n\u0131 nas\u0131l hesaplar\u0131m?<\/strong><\/p>\n<p>Ar\u0131zadan kaynaklanan termal enerjinin (I<sup>2<\/sup>t) hem devre kesicinin hem de ATS'nin dayan\u0131m kabiliyetinden daha az oldu\u011funu do\u011frulay\u0131n: I<sup>2<\/sup>t(ar\u0131za) &lt; I<sup>2<\/sup>cw(ATS) \u00d7 t(de\u011fer)<sup>2<\/sup>t(ar\u0131za) &lt; I<sup>2<\/sup>cw(ATS) \u00d7 t(derecelendirme). \u00d6rnek: 0,3 s devre kesici gecikmeli 40 kA ar\u0131za, I<sup>2<\/sup>t = (40kA)<sup>2<\/sup> \u00d7 0,3s = 480 MJ\/s \u00fcretir. ATS'niz \u2265 0,3s i\u00e7in \u2265 40kA k\u0131sa s\u00fcreli derecelendirmeye ve devre kesiciniz minimum 0,3s i\u00e7in Icw \u2265 40kA'ya sahip olmal\u0131d\u0131r. Bu hesaplamalara her zaman 10-20% g\u00fcvenlik marj\u0131 ekleyin.<\/p>\n<p><strong>S5: \u201cSe\u00e7ici koordinasyon\u201d ATS kurulumlar\u0131 i\u00e7in ne anlama geliyor?<\/strong><\/p>\n<p>Se\u00e7ici koordinasyon, ATS'nin a\u015fa\u011f\u0131 ak\u0131\u015f\u0131ndaki da\u011f\u0131t\u0131m sisteminde herhangi bir yerde bir ar\u0131za meydana geldi\u011finde, yaln\u0131zca ar\u0131zan\u0131n hemen yukar\u0131s\u0131ndaki koruma cihaz\u0131n\u0131n \u00e7al\u0131\u015fmas\u0131 anlam\u0131na gelir\u2014ATS yukar\u0131 ak\u0131\u015f kesicisi kapal\u0131 kal\u0131r ve ar\u0131zal\u0131 bran\u015f haricinde t\u00fcm y\u00fcklere g\u00fc\u00e7 sa\u011flamaya devam eder. Bu, devre kesici tiplerinin, de\u011ferlerinin ve ayarlar\u0131n\u0131n uygun \u015fekilde se\u00e7ilmesini ve ATS k\u0131sa devre dayan\u0131m yetene\u011fi ile koordine edilmesini gerektirir. NEC Madde 700.28, acil durum sistemleri i\u00e7in se\u00e7ici koordinasyonu zorunlu k\u0131lar ve bu da genellikle k\u0131sa s\u00fcreli dayan\u0131m de\u011ferine sahip ATS \u00fcniteleri ihtiyac\u0131n\u0131 do\u011furur.<\/p>\n<p><strong>S6: K\u0131sa s\u00fcreli dayan\u0131m de\u011ferine sahip bir ATS ne zaman gereklidir?<\/strong><\/p>\n<p>K\u0131sa s\u00fcreli nominal ATS \u015fu durumlarda zorunludur: (1) Yukar\u0131 ak\u0131\u015f devre kesici, se\u00e7ici koordinasyon i\u00e7in kas\u0131tl\u0131 zaman gecikmeleri (Kategori B devre kesici) kullan\u0131r veya (2) NEC veya s\u00f6zle\u015fme spesifikasyonlar\u0131, acil durum, sa\u011fl\u0131k veya kritik operasyon g\u00fc\u00e7 sistemleri i\u00e7in a\u00e7\u0131k\u00e7a se\u00e7ici koordinasyon gerektirir. Ayr\u0131ca, ar\u0131zalar s\u0131ras\u0131nda maksimum hizmet s\u00fcreklili\u011fini s\u00fcrd\u00fcrmenin 30-60% maliyet primini hakl\u0131 \u00e7\u0131karan operasyonel de\u011fer sa\u011flad\u0131\u011f\u0131 g\u00f6rev a\u00e7\u0131s\u0131ndan kritik herhangi bir uygulama i\u00e7in de \u00f6nerilir.<\/p>\n<p><strong>S7: Jenerat\u00f6r kaynak empedans\u0131, ATS koordinasyonunu nas\u0131l etkiler?<\/strong><\/p>\n<p>Jenerat\u00f6r kaynaklar\u0131, genellikle alt ge\u00e7ici reaktans nedeniyle \u015febeke kaynaklar\u0131na g\u00f6re 4-10 kat daha d\u00fc\u015f\u00fck ar\u0131za ak\u0131m\u0131 sunar. Bu, ayr\u0131 ayr\u0131 analiz edilmesi gereken iki farkl\u0131 koordinasyon senaryosu olu\u015fturur: biri \u015febeke kaynakl\u0131 ar\u0131zalar (daha y\u00fcksek ak\u0131m, potansiyel olarak daha \u015fiddetli) ve di\u011feri jenerat\u00f6r kaynakl\u0131 ar\u0131zalar (daha d\u00fc\u015f\u00fck ak\u0131m, farkl\u0131 koordinasyon gereksinimleri) i\u00e7in. ATS'niz her iki kaynaktan gelen maksimum ar\u0131za ak\u0131m\u0131na g\u00f6re derecelendirilmelidir ve koordinasyon \u00e7al\u0131\u015fman\u0131z her iki senaryoda da se\u00e7icili\u011fi do\u011frulamal\u0131d\u0131r. Baz\u0131 kurulumlar, bu fark\u0131 gidermek i\u00e7in farkl\u0131 \u015falter ayarlar\u0131 veya \u00e7ift de\u011ferli cihazlar gerektirebilir.<\/p>\n<p>&nbsp;<\/p>\n<\/div>\n<div class=\"simg-pop-btn\" style=\"top: 1456.2px; left: 14px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 1456.2px; left: 14px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: -31.5px; left: 54.0078px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: -31.5px; left: 54.0078px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 3111.38px; left: 14px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 3111.38px; left: 14px; display: none;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>Figure 1: A professional installation of a VIOX Automatic Transfer Switch illustrating the critical physical relationship between the ATS and upstream protection devices in a distribution environment. Why Most ATS Specifications Miss the Critical Coordination Factor When specifying an automatic transfer switch, most electrical engineers focus on the obvious parameters: continuous current rating, transfer time, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":21257,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-21256","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/test.viox.com\/tr\/wp-json\/wp\/v2\/posts\/21256","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/test.viox.com\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/test.viox.com\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/test.viox.com\/tr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/test.viox.com\/tr\/wp-json\/wp\/v2\/comments?post=21256"}],"version-history":[{"count":2,"href":"https:\/\/test.viox.com\/tr\/wp-json\/wp\/v2\/posts\/21256\/revisions"}],"predecessor-version":[{"id":21259,"href":"https:\/\/test.viox.com\/tr\/wp-json\/wp\/v2\/posts\/21256\/revisions\/21259"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/test.viox.com\/tr\/wp-json\/wp\/v2\/media\/21257"}],"wp:attachment":[{"href":"https:\/\/test.viox.com\/tr\/wp-json\/wp\/v2\/media?parent=21256"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/test.viox.com\/tr\/wp-json\/wp\/v2\/categories?post=21256"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/test.viox.com\/tr\/wp-json\/wp\/v2\/tags?post=21256"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}