{"id":20268,"date":"2025-11-19T00:42:19","date_gmt":"2025-11-18T16:42:19","guid":{"rendered":"https:\/\/viox.com\/?p=20268"},"modified":"2025-11-19T00:42:21","modified_gmt":"2025-11-18T16:42:21","slug":"circuit-breaker-ratings-icu-ics-icw-icm","status":"publish","type":"post","link":"https:\/\/test.viox.com\/tr\/circuit-breaker-ratings-icu-ics-icw-icm\/","title":{"rendered":"Devre Kesici De\u011ferlerini Anlamak: Icu, Ics, Icw, Icm A\u00e7\u0131kland\u0131"},"content":{"rendered":"<div class=\"product-intro\">\n<p>Spesifikasyon sayfas\u0131 m\u00fckemmel g\u00f6r\u00fcn\u00fcyordu. 50 kA Icu de\u011feri, hesaplad\u0131\u011f\u0131n\u0131z 38 kA ar\u0131za ak\u0131m\u0131n\u0131n \u00e7ok \u00fczerindeydi. Sipari\u015fi onaylad\u0131n\u0131z, kesici sevk edildi, kurulum sorunsuz ger\u00e7ekle\u015fti.<\/p>\n<p>\u00dc\u00e7 ay sonra, ana da\u011f\u0131t\u0131m baras\u0131nda bir k\u0131sa devre meydana geldi. Kesici, ar\u0131zay\u0131 milisaniyeler i\u00e7inde giderdi\u2014tam olarak tasarland\u0131\u011f\u0131 gibi. Ancak ekibiniz tekrar enerji verip te\u015fhisleri \u00e7al\u0131\u015ft\u0131rd\u0131\u011f\u0131nda, kesicinin kontak direnci \u00fc\u00e7 kat\u0131na \u00e7\u0131km\u0131\u015ft\u0131. Ark odas\u0131 \u0131s\u0131 hasar\u0131 g\u00f6steriyordu. Onlarca y\u0131l hizmet i\u00e7in derecelendirilen \u015fey, tek bir ar\u0131za kesintisi sonras\u0131nda art\u0131k marjinaldi. \u00dcretim devam etti, ancak bir yedek sipari\u015f ettiniz ve ar\u0131za raporunu dosyaya koydunuz.<\/p>\n<p>K\u00f6k neden? Icu'yu kontrol etmi\u015ftiniz\u2014kesicinin maksimum ar\u0131za ak\u0131m\u0131n\u0131 bir kez kesme yetene\u011fi. Ics'yi kontrol etmemi\u015ftiniz\u2014kesicinin i\u015fini yapt\u0131ktan sonra g\u00fcvenilir kal\u0131p kalmayaca\u011f\u0131n\u0131 belirleyen servis kesme kapasitesi. 50 kA'l\u0131k kesicinizin Ics de\u011feri sadece 25 kA idi (Icu'nun 'si). 38 kA'l\u0131k ar\u0131za, Icu i\u00e7inde olmas\u0131na ra\u011fmen, Ics'nin \u00e7ok \u00f6tesindeydi. Kesici, bir <strong>\u201cTek At\u0131\u015fl\u0131k Kahraman\u201d<\/strong>gibi davrand\u0131\u2014sisteminizi kurtard\u0131, ancak bunu tekrar yapamad\u0131.<\/p>\n<p>Bu <strong>\u201cIcs K\u00f6r Noktas\u0131,\u201d<\/strong> ve bu, end\u00fcstriyel tesisatlardaki en yayg\u0131n devre kesici spesifikasyon hatas\u0131d\u0131r.<\/p>\n<hr \/>\n<h2>D\u00f6rt De\u011fer: Veri Sayfan\u0131z\u0131n Size S\u00f6ylemedi\u011fi \u015eeyler<\/h2>\n<p>Herhangi bir devre kesici veri sayfas\u0131n\u0131 a\u00e7\u0131n\u2014<a href=\"https:\/\/test.viox.com\/tr\/mccb\/\">MCCB'N\u0130N<\/a>, ACB, fark etmez\u2014ve minimum ba\u011flamla listelenen d\u00f6rt k\u0131sa devre de\u011feri bulacaks\u0131n\u0131z:<\/p>\n<ul>\n<li><strong>Icu<\/strong> (anma nihai k\u0131sa devre kesme kapasitesi)<\/li>\n<li><strong>Ics<\/strong> (anma servis k\u0131sa devre kesme kapasitesi)<\/li>\n<li><strong>Icw<\/strong> (anma k\u0131sa s\u00fcreli dayan\u0131m ak\u0131m\u0131)<\/li>\n<li><strong>Icm<\/strong> (anma k\u0131sa devre yapma kapasitesi)<\/li>\n<\/ul>\n<p>D\u00f6rt k\u0131saltma. D\u00f6rt say\u0131, tipik olarak kA veya kA tepe de\u011feri cinsinden. Ve y\u00fczlerce kesici belirtmedi\u011finiz s\u00fcrece, hangilerinin UYGULAMANIZDA g\u00fcvenilirli\u011fi ger\u00e7ekten y\u00f6netti\u011fine dair neredeyse hi\u00e7 sezgi yok.<\/p>\n<p>Veri sayfas\u0131n\u0131n size s\u00f6ylemedi\u011fi \u015fey \u015fudur: <strong>Bu de\u011ferler e\u015fit ortaklar de\u011fildir.<\/strong> Bir motor besleme devresi i\u00e7in, Icu ve Ics g\u00fcvenilirli\u011finize hakimdir\u2014Icw ge\u00e7erli bile de\u011fildir. Zaman gecikmeli se\u00e7icili\u011fe sahip bir ana giri\u015f i\u00e7in, Icw kritik hale gelir. Mevcut bir ar\u0131zaya kapanabilecek bir transfer anahtar\u0131 i\u00e7in, Icm do\u011frulamas\u0131 esast\u0131r.<\/p>\n<p>De\u011ferler IEC 60947-2:2024 taraf\u0131ndan tan\u0131mlan\u0131r (Eyl\u00fcl 2024'te yay\u0131nlanan en son s\u00fcr\u00fcm) ve bunlar kesin, test edilebilir ve zorunludur. Ancak bunlar\u0131n ne anlama geldi\u011fini\u2014ve daha da \u00f6nemlisi, her birinin ne zaman \u00f6nemli oldu\u011funu\u2014anlamak, standard\u0131n dilini uygulama mant\u0131\u011f\u0131na \u00e7evirmeyi gerektirir.<\/p>\n<p>Herkesin kontrol etti\u011fi ancak genellikle yanl\u0131\u015f anlad\u0131\u011f\u0131 ile ba\u015flayarak, d\u00f6rd\u00fcn\u00fc de \u00e7\u00f6zelim.<\/p>\n<hr \/>\n<h2>Icu: Tek At\u0131\u015fl\u0131k Kahraman (Nihai Kesme Kapasitesi)<\/h2>\n<p><strong>Icu<\/strong> , kesicinin tahrip olmadan anma geriliminde kesebilece\u011fi maksimum olas\u0131 k\u0131sa devre ak\u0131m\u0131d\u0131r. Bu, nihai s\u0131n\u0131rd\u0131r\u2014kesicinin temizleyebilece\u011fi ve hala fiziksel olarak a\u00e7abilece\u011fi, ark\u0131 s\u00f6nd\u00fcrebilece\u011fi ve feci ar\u0131zay\u0131 \u00f6nleyebilece\u011fi en y\u00fcksek ar\u0131zad\u0131r.<\/p>\n<p>Ancak i\u015fte kritik n\u00fcans: Icu, belirli bir IEC dizisi alt\u0131nda test edilir: O\u2011t\u2011CO. Kesici, bir ar\u0131zay\u0131 gidermek i\u00e7in A\u00e7ar, bir zaman gecikmesi (t) vard\u0131r, ard\u0131ndan Icu seviyesinde ikinci bir ar\u0131zay\u0131 gidermek i\u00e7in Kapan\u0131r ve hemen tekrar A\u00e7ar. Kesici hayatta kal\u0131rsa\u2014yani kaynak kontaklar\u0131, patlama veya a\u00e7\u0131lmama olmadan her iki ar\u0131zay\u0131 da ba\u015far\u0131yla keserse\u2014Icu testini ge\u00e7er.<\/p>\n<p>Testin DO\u011eRULAMADI\u011eI \u015fey, kesicinin daha sonra hala iyi durumda olup olmad\u0131\u011f\u0131d\u0131r. Icu testinden sonra, cihazda kontak erozyonu, ark odas\u0131 hasar\u0131 veya s\u00fcrekli hizmet i\u00e7in uygunsuz hale getiren mekanik a\u015f\u0131nma olabilir. Icu'yu kesicinin kahramanca \u00f6lme yetene\u011fi olarak d\u00fc\u015f\u00fcn\u00fcn\u2014kurulumunuzu en k\u00f6t\u00fc durumdaki ar\u0131zadan koruyacakt\u0131r, daha sonra pek bir \u015fey yapamasa bile.<\/p>\n<p>Bu y\u00fczden ona <strong>\u201cTek At\u0131\u015fl\u0131k Kahraman\u201d<\/strong><\/p>\n<h3>diyoruz.<\/h3>\n<p>Neden Icu Tek Ba\u015f\u0131na Yeterli De\u011fil.<\/p>\n<p>\u00c7o\u011fu m\u00fchendis, Icu \u2265 kurulum noktas\u0131ndaki olas\u0131 ar\u0131za ak\u0131m\u0131n\u0131 do\u011frulamay\u0131 bilir. Bu birinci ad\u0131md\u0131r ve pazarl\u0131k edilemez. Yetersiz Icu'ya sahip bir kesici, ger\u00e7ekle\u015fmeyi bekleyen feci bir ar\u0131zad\u0131r\u2014kontaklar kapanabilir, ark odalar\u0131 y\u0131rt\u0131labilir ve kontroll\u00fc koruma olmas\u0131 gereken \u015fey kontrols\u00fcz bir olay haline gelir.<\/p>\n<p>Ancak Icu, kesicinin i\u015fini yapt\u0131ktan sonra g\u00fcvenilirlik hakk\u0131nda size hi\u00e7bir \u015fey s\u00f6ylemez. Bir sonraki ar\u0131zada do\u011fru \u00e7al\u0131\u015facak m\u0131? Hala termal ve mekanik dayan\u0131kl\u0131l\u0131k de\u011ferlerini kar\u015f\u0131layacak m\u0131? Icu'nun test etti\u011fi \u015fey bu de\u011fil. Bu g\u00fcvence i\u00e7in, bir sonraki de\u011fere bakman\u0131z gerekir: Ics.<\/p>\n<p>Tipik end\u00fcstriyel MCCB'ler ve ACB'ler, \u00e7er\u00e7eve boyutuna ve uygulamaya ba\u011fl\u0131 olarak 10 kA ila 150 kA aras\u0131nda de\u011fi\u015fen Icu de\u011ferlerine sahiptir. \u0130\u015finiz, Icu'nun kurulum noktas\u0131ndaki maksimum olas\u0131 ar\u0131za ak\u0131m\u0131n\u0131 a\u015fmas\u0131n\u0131 sa\u011flamakt\u0131r, tipik olarak kurulumun \u00f6mr\u00fc boyunca sistem de\u011fi\u015fikliklerini (eklenen \u00fcretim, azalt\u0131lm\u0131\u015f empedans vb.) hesaba katmak i\u00e7in -20'lik bir g\u00fcvenlik marj\u0131 ile.<\/p>\n<hr \/>\n<h2>Ancak bu sadece giri\u015f \u015fart\u0131. Icu sizi i\u00e7eri al\u0131r. Ics, kal\u0131p kalamayaca\u011f\u0131n\u0131z\u0131 belirler.<\/h2>\n<p><strong>Ics<\/strong> Ics: Pazartesiden Cumaya Sava\u015f\u00e7\u0131 (Servis Kesme Kapasitesi).<\/p>\n<p>, anma servis k\u0131sa devre kesme kapasitesidir\u2014kesicinin kesintiden sonra iyi \u00e7al\u0131\u015fma ko\u015fulunda kalmas\u0131 i\u00e7in do\u011fruland\u0131\u011f\u0131 maksimum ar\u0131za ak\u0131m\u0131. Bu, kesicinizin bir ar\u0131zay\u0131 giderdikten sonra hala g\u00fcvenilir bir \u015fekilde \u00e7al\u0131\u015f\u0131p \u00e7al\u0131\u015fmayaca\u011f\u0131n\u0131 belirleyen de\u011ferdir.<\/p>\n<p>Ics, Icu'dan daha zorlu bir dizi alt\u0131nda test edilir: O\u2011CO\u2011CO. Kesici, Ics seviyesinde bir ar\u0131zay\u0131 gidermek i\u00e7in A\u00e7ar, Kapan\u0131r ve hemen tekrar A\u00e7ar (CO), ard\u0131ndan d\u00f6ng\u00fcy\u00fc (CO) toplam \u00fc\u00e7 ar\u0131za kesintisi i\u00e7in tekrarlar. Bu diziden sonra, kesici hala t\u00fcm performans \u00f6zelliklerini kar\u015f\u0131lamal\u0131d\u0131r\u2014s\u0131n\u0131rlar dahilinde kontak direnci, d\u00fczg\u00fcn mekanik \u00e7al\u0131\u015fma, termal ve elektriksel dayan\u0131kl\u0131l\u0131k etkilenmemelidir. Ard\u0131ndan, dielektrik dayan\u0131m\u0131 ve son fonksiyonel kontroller dahil olmak \u00fczere ek do\u011frulama testlerine tabi tutulur. <strong>\u201cGe\u00e7erse, kesici o ak\u0131m seviyesinde hizmet i\u00e7in sertifikaland\u0131r\u0131l\u0131r. Bu,\u201d<\/strong>\u201cPazartesiden Cumaya Sava\u015f\u00e7\u0131\u201d.<\/p>\n<h3>d\u0131r\u2014sadece bir kez de\u011fil, kurulumun \u00f6mr\u00fc boyunca tekrar tekrar do\u011fru \u00e7al\u0131\u015faca\u011f\u0131na g\u00fcvenebilece\u011finiz kesici.<\/h3>\n<p>Ics-to-Icu Oran\u0131: G\u00fcvenilirlik Bo\u015flu\u011fu <strong>\u0130\u015fte kritik hale geldi\u011fi yer:.<\/strong> Ics her zaman Icu'nun y\u00fczdesi olarak ifade edilir.<\/p>\n<ul>\n<li><strong>End\u00fcstriyel devre kesiciler i\u00e7in yayg\u0131n oranlar:<\/strong> Icu'nun 'i<\/li>\n<li><strong>(d\u00fc\u015f\u00fck maliyetli, konut s\u0131n\u0131f\u0131 MCCB'ler)<\/strong> Icu'nun 'si<\/li>\n<li><strong>(giri\u015f seviyesi end\u00fcstriyel MCCB'ler)<\/strong> Icu'nun 'i<\/li>\n<li><strong>(standart end\u00fcstriyel MCCB'ler)<\/strong> Icu'nun 0'\u00fc<\/li>\n<\/ul>\n<p>(premium end\u00fcstriyel MCCB'ler ve \u00e7o\u011fu ACB).<\/p>\n<p>Bu <strong>\u201c80 kA Icu ve 40 kA Ics'ye (50% oran\u0131) sahip bir kesici, yaln\u0131zca 40 kA'ya kadar ar\u0131za kesintileri i\u00e7in g\u00fcvenilir hizmet i\u00e7in sertifikaland\u0131r\u0131lm\u0131\u015ft\u0131r. 40 kA ile 80 kA aras\u0131nda, g\u00fcvenilirlik bo\u015flu\u011fundad\u0131r\u2014ar\u0131zay\u0131 giderecektir (Icu'nun garanti etti\u011fi \u015fey budur), ancak daha sonra servis edilebilir olmayabilir.\u201d<\/strong> \u201cIcs K\u00f6r Noktas\u0131\u201d.<\/p>\n<p><strong>Pro-\u0130pucu #1:<\/strong> eylemde: Icu'yu do\u011fruluyorsunuz, kesicinin ar\u0131za seviyeniz i\u00e7in \"derecelendirildi\u011fini\" varsay\u0131yorsunuz ve Ics'nin ger\u00e7ek olas\u0131 ar\u0131za ak\u0131m\u0131n\u0131z\u0131 kapsay\u0131p kapsamad\u0131\u011f\u0131n\u0131 asla kontrol etmiyorsunuz. Ard\u0131ndan ilk ger\u00e7ek ar\u0131za meydana gelir, kesici 55 kA'da \u00e7al\u0131\u015f\u0131r ve daha sonra bozulur. Belki hala \u00e7al\u0131\u015f\u0131r\u2014veya belki kontak direnci y\u00fckselmi\u015ftir, a\u00e7ma kalibrasyonu kaym\u0131\u015ft\u0131r ve kritik bir konumda g\u00fcvenilmez bir cihaza bak\u0131yorsunuz.<\/p>\n<h3>Avrupa end\u00fcstriyel uygulamas\u0131nda, kritik uygulamalar i\u00e7in Ics = Icu'nun 0'\u00fcn\u00fc belirtmek standartt\u0131r. Fiyat fark\u0131 minimaldir\u2014ayn\u0131 \u00e7er\u00e7eve boyutunda Ics modeline k\u0131yasla 0 Ics kesici i\u00e7in tipik olarak 300-600 TL daha fazla. G\u00fcvenilirlik fark\u0131 \u00e7ok b\u00fcy\u00fck. 50 kA Icu ve 25 kA Ics'ye () sahip bir kesici, ilk b\u00fcy\u00fck ar\u0131za kesintisinden sonra kullan\u0131lamaz hale gelebilir. 50 kA Icu ve 50 kA Ics'ye (0) sahip bir kesici, tam ar\u0131za kapasitesinde tekrarlanan hizmet i\u00e7in sertifikaland\u0131r\u0131lm\u0131\u015ft\u0131r.<\/h3>\n<p>Ics Ne Zaman Icu'ya E\u015fit Olur (Ve Ne Zaman Olmaz).<\/p>\n<p>ACB'ler (hava devre kesicileri) ve premium MCCB'ler i\u00e7in, Ics tipik olarak Icu'ya e\u015fittir\u20140 oran\u0131. Bu kesiciler, ar\u0131za sonras\u0131 g\u00fcvenilirli\u011fin pazarl\u0131k edilemez oldu\u011fu a\u011f\u0131r hizmet tipi end\u00fcstriyel hizmet i\u00e7in tasarlanm\u0131\u015ft\u0131r.<\/p>\n<p>Ekonomi MCCB'ler ve konut s\u0131n\u0131f\u0131 cihazlar i\u00e7in, Ics Icu'nun 'i veya 'si olabilir. Bu kesiciler, ar\u0131za ak\u0131mlar\u0131n\u0131n daha d\u00fc\u015f\u00fck oldu\u011fu veya kesicinin b\u00fcy\u00fck bir ar\u0131zadan sonra de\u011fi\u015ftirilen kurban edilebilir bir cihaz olarak kabul edildi\u011fi uygulamalar i\u00e7in tasarlanm\u0131\u015ft\u0131r.<\/p>\n<p><strong>Uzman \u0130pucu #5:<\/strong> Cevaplaman\u0131z gereken soru: Kurulumunuz, her b\u00fcy\u00fck ar\u0131zadan sonra bir kesicinin de\u011fi\u015ftirildi\u011fi bir yer mi? Yoksa servis edilebilir kalmas\u0131n\u0131 m\u0131 istiyorsunuz?.<\/p>\n<figure><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone size-full wp-image-20269\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Icu-vs-Ics-Reliability-Comparison-chart.webp\" alt=\"Icu vs Ics Reliability Comparison chart\" width=\"800\" height=\"450\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Icu-vs-Ics-Reliability-Comparison-chart.webp 800w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Icu-vs-Ics-Reliability-Comparison-chart-300x169.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Icu-vs-Ics-Reliability-Comparison-chart-768x432.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Icu-vs-Ics-Reliability-Comparison-chart-18x10.webp 18w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Icu-vs-Ics-Reliability-Comparison-chart-600x338.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption>Y\u00fcksek bir Icu'nun otomatik olarak yeterli Ics anlam\u0131na geldi\u011fini asla varsaymay\u0131n. 25 kA Ics'ye sahip 100 kA Icu kesici (konut s\u0131n\u0131f\u0131 MCCB'lerde yayg\u0131n olan oran\u0131), olas\u0131 ar\u0131za ak\u0131m\u0131n\u0131z\u0131n 60 kA oldu\u011fu ve ar\u0131za sonras\u0131 servis edilebilirli\u011fin \u00f6nemli oldu\u011fu end\u00fcstriyel uygulamalar i\u00e7in UYGUN DE\u011e\u0130LD\u0130R. G\u00fcvenilir \u00e7al\u0131\u015fma i\u00e7in her zaman Ics \u2265 olas\u0131 ar\u0131za ak\u0131m\u0131n\u0131 do\u011frulay\u0131n.<\/figcaption><\/figure>\n<hr \/>\n<h2>\u015eekil 1: Icu ve Ics G\u00fcvenilirlik Kar\u015f\u0131la\u015ft\u0131rmas\u0131. Sol: Y\u00fcksek Icu'ya ancak d\u00fc\u015f\u00fck Ics'ye ( oran\u0131) sahip bir kesici hasar g\u00f6rebilir ve ilk b\u00fcy\u00fck ar\u0131za kesintisinden sonra g\u00fcvenilmez hale gelebilir. Sa\u011f: Ics = Icu'nun 0'\u00fcne sahip bir kesici, tam ar\u0131za kapasitesinde tekrarlanan hizmet i\u00e7in sertifikaland\u0131r\u0131lm\u0131\u015ft\u0131r\u2014ar\u0131zalar\u0131 giderdikten sonra servis edilebilir kalan \"Pazartesiden Cumaya Sava\u015f\u00e7\u0131\". Bu g\u00f6rsel, m\u00fchendislerin yaln\u0131zca Icu'yu kontrol ettiklerinde s\u0131kl\u0131kla ka\u00e7\u0131rd\u0131\u011f\u0131 kritik g\u00fcvenilirlik bo\u015flu\u011funu g\u00f6stermektedir.<\/h2>\n<p><strong>Icw<\/strong> Icw: Se\u00e7icilik Kap\u0131s\u0131 (K\u0131sa S\u00fcreli Dayan\u0131m Ak\u0131m\u0131).<\/p>\n<p>, kesicinin a\u00e7madan veya hasar g\u00f6rmeden belirli bir k\u0131sa s\u00fcre (tipik olarak 0,05, 0,1, 0,25, 0,5 veya 1,0 saniye) boyunca ta\u015f\u0131yabilece\u011fi maksimum ar\u0131za ak\u0131m\u0131 olan anma k\u0131sa s\u00fcreli dayan\u0131m ak\u0131m\u0131d\u0131r. Bu de\u011fer, da\u011f\u0131t\u0131m sistemlerinde zaman gecikmeli se\u00e7icili\u011fi etkinle\u015ftirmek i\u00e7in vard\u0131r. <strong>Ancak bilmeniz gereken ilk \u015fey \u015fudur:.<\/strong><\/p>\n<p>T\u00fcm kesicilerin Icw de\u011feri yoktur.<\/p>\n<ul>\n<li><strong>A Kategorisi:<\/strong> Kas\u0131tl\u0131 k\u0131sa s\u00fcreli gecikmesi olmayan devre kesiciler. Ar\u0131za ak\u0131m\u0131 anl\u0131k a\u00e7ma ayarlar\u0131n\u0131 a\u015ft\u0131\u011f\u0131nda an\u0131nda (veya neredeyse an\u0131nda) a\u00e7ma yaparlar. Motor besleyicileri, son da\u011f\u0131t\u0131m ve bran\u015fman devreleri i\u00e7in kullan\u0131lan MCCB'lerin \u00e7o\u011fu A Kategorisi cihazlard\u0131r. <strong>A Kategorisi kesicilerin bir Icw de\u011feri yoktur.<\/strong><\/li>\n<li><strong>Kategori B:<\/strong> Ak\u0131m a\u015fa\u011f\u0131 y\u00f6nl\u00fc cihazlar\u0131n \u00f6nce ar\u0131zalar\u0131 gidermesine izin veren (se\u00e7icilik) kas\u0131tl\u0131 k\u0131sa s\u00fcreli bir gecikmeyle ayarlanabilen devre kesiciler. Bu kesiciler, gecikme s\u00fcresi boyunca ar\u0131za ak\u0131m\u0131na hasar g\u00f6rmeden dayanmal\u0131d\u0131r. <strong>Sadece B Kategorisi kesicilerin bir Icw de\u011feri vard\u0131r.<\/strong><\/li>\n<\/ul>\n<p>Tipik olarak, ana giri\u015fler, bara ba\u011flant\u0131 kesicileri veya kademeli da\u011f\u0131t\u0131m sistemlerinde besleyici kesiciler olarak kullan\u0131lan ACB'ler ve a\u011f\u0131r hizmet tipi MCCB'ler B Kategorisi cihazlard\u0131r.<\/p>\n<h3>Icw Neden \u00d6nemli: Eylemde Se\u00e7icilik<\/h3>\n<p>\u00dc\u00e7 katmanl\u0131 bir da\u011f\u0131t\u0131m sistemi hayal edin:<\/p>\n<ol>\n<li><strong>Ana giri\u015f kesicisi<\/strong> (B Kategorisi, Icw de\u011ferine sahip)<\/li>\n<li><strong>Besleyici kesiciler<\/strong> tesisin farkl\u0131 b\u00f6l\u00fcmlerine (boyuta ba\u011fl\u0131 olarak A veya B Kategorisi)<\/li>\n<li><strong>Bran\u015fman devre kesicileri<\/strong> bireysel y\u00fckler i\u00e7in (A Kategorisi)<\/li>\n<\/ol>\n<p>Bir bran\u015fman devresinde bir ar\u0131za meydana gelir. Sadece bran\u015fman kesicinin a\u00e7mas\u0131n\u0131, besleyici ve ana giri\u015fin kapal\u0131 kalmas\u0131n\u0131 ve tesisin geri kalan\u0131n\u0131n \u00e7al\u0131\u015fmaya devam etmesini istersiniz. \u0130\u015fte bu se\u00e7iciliktir.<\/p>\n<p>Bunu ba\u015farmak i\u00e7in, besleyici ve ana giri\u015f kesicilerinin k\u0131sa s\u00fcreli gecikme ayarlar\u0131 olmal\u0131d\u0131r: \u201cA\u015fa\u011f\u0131 ak\u0131\u015fta bir \u015feyin ar\u0131zay\u0131 giderip gidermedi\u011fini g\u00f6rmek i\u00e7in 0,1 saniye bekleyin, sonra a\u00e7ma yap\u0131n.\u201d Bu 0,1 saniyelik gecikme s\u0131ras\u0131nda, yukar\u0131 ak\u0131\u015f kesicisi tam ar\u0131za ak\u0131m\u0131n\u0131 ta\u015f\u0131r. Ar\u0131za 40 kA ise ve ana giri\u015fin Icw de\u011feri 0,1 saniye i\u00e7in sadece 30 kA ise, kesici a\u00e7mas\u0131n\u0131 ba\u015far\u0131yla geciktirmesine ra\u011fmen gecikme s\u0131ras\u0131nda termal ve mekanik hasar g\u00f6recektir.<\/p>\n<p>Bu y\u00fczden Icw'ye <strong>\u201cSe\u00e7icilik Kap\u0131 Bek\u00e7isi\u201d denir\u201d<\/strong>- yukar\u0131 ak\u0131\u015f kesicinizin a\u015fa\u011f\u0131 ak\u0131\u015f korumas\u0131n\u0131n harekete ge\u00e7mesi i\u00e7in kap\u0131y\u0131 yeterince uzun s\u00fcre tutup tutamayaca\u011f\u0131n\u0131 belirler.<\/p>\n<p><strong>Pro-\u0130pucu #2:<\/strong> Veri sayfas\u0131nda kesicinizin bir Icw de\u011feri yoksa, anl\u0131k a\u00e7ma \u00f6zelli\u011fine sahip bir A Kategorisi cihazd\u0131r - kas\u0131tl\u0131 k\u0131sa s\u00fcreli gecikmeyle se\u00e7icilik i\u00e7in kullanmaya \u00e7al\u0131\u015fmay\u0131n. Sadece B Kategorisi kesiciler (tipik olarak ACB'ler ve a\u011f\u0131r hizmet tipi MCCB'ler) Icw arac\u0131l\u0131\u011f\u0131yla zaman gecikmeli koordinasyonu destekleyebilir. Bir A Kategorisi kesiciyi bir se\u00e7icilik rol\u00fcne zorlamak, gereksiz a\u00e7malara veya kesici hasar\u0131na neden olur.<\/p>\n<h3>Icw'nin \u00d6nemsiz Oldu\u011fu Durumlar<\/h3>\n<p>Motor besleyici devreleri, son da\u011f\u0131t\u0131m panolar\u0131 ve \u00e7o\u011fu bran\u015fman devre uygulamas\u0131 i\u00e7in Icw alakas\u0131zd\u0131r. Bu kesiciler, bir ar\u0131za meydana geldi\u011finde olabildi\u011fince h\u0131zl\u0131 a\u00e7ma yapmak \u00fczere tasarlanm\u0131\u015f A Kategorisi cihazlard\u0131r. Gecikme yok, kesici seviyesinde se\u00e7icilik koordinasyonu yok (koordinasyon i\u00e7in sigortalar veya ba\u015fka cihazlar kullanabilirsiniz) ve bu nedenle k\u0131sa s\u00fcreli dayan\u0131m kapasitesine gerek yok.<\/p>\n<p>Bu uygulamalar i\u00e7in spesifikasyon kontrol listeniz: Icu ve Ics. \u0130\u015fte bu kadar. Icw ge\u00e7erli de\u011fil.<\/p>\n<figure><img decoding=\"async\" class=\"alignnone size-full wp-image-20270\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/IEC-60947-2-Selectivity-Categories-Diagram.webp\" alt=\"IEC 60947-2 Selectivity Categories Diagram\" width=\"800\" height=\"450\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/IEC-60947-2-Selectivity-Categories-Diagram.webp 800w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/IEC-60947-2-Selectivity-Categories-Diagram-300x169.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/IEC-60947-2-Selectivity-Categories-Diagram-768x432.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/IEC-60947-2-Selectivity-Categories-Diagram-18x10.webp 18w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/IEC-60947-2-Selectivity-Categories-Diagram-600x338.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption>\u015eekil 2: IEC 60947-2 Se\u00e7icilik Kategorileri. A Kategorisi kesiciler an\u0131nda a\u00e7ma yapar ve Icw de\u011ferlerine sahip de\u011fildir - motor besleyicileri ve son da\u011f\u0131t\u0131m i\u00e7in uygundur. B Kategorisi kesiciler kas\u0131tl\u0131 k\u0131sa s\u00fcreli gecikmeyle ayarlanabilir ve Icw de\u011ferlerine sahiptir - se\u00e7ici koordinasyonun gerekli oldu\u011fu ana giri\u015fler ve bara ba\u011flant\u0131 kesicileri i\u00e7in gereklidir. Bir A Kategorisi kesiciyi bir se\u00e7icilik rol\u00fcnde kullanmaya \u00e7al\u0131\u015fmak, gereksiz a\u00e7malara veya hasara neden olur.<\/figcaption><\/figure>\n<hr \/>\n<h2>Icm: Yapma An\u0131 (K\u0131sa Devre Yapma Kapasitesi)<\/h2>\n<p><strong>Icm<\/strong> nominal k\u0131sa devre yapma kapasitesidir - kesicinin belirtilen test ko\u015fullar\u0131 alt\u0131nda yapabilece\u011fi (\u00fczerine kapatabilece\u011fi) en y\u00fcksek tepe anl\u0131k ak\u0131md\u0131r. Bu de\u011fer, \u00e7o\u011fu m\u00fchendisin d\u00fc\u015f\u00fcnmedi\u011fi bir senaryoyu ele al\u0131r: Devrede zaten bir ar\u0131za varken bir kesiciyi kapat\u0131rsan\u0131z ne olur?<\/p>\n<p>Kula\u011fa u\u00e7 bir durum gibi geliyor, ancak de\u011fil:<\/p>\n<ul>\n<li><strong>Otomatik transfer anahtarlar\u0131<\/strong> kaynak de\u011fi\u015ftirme s\u0131ras\u0131nda \u00f6nceden var olan bir ar\u0131zan\u0131n \u00fczerine kapanabilir<\/li>\n<li><strong>Manuel yeniden kapama<\/strong> yeri tespit edilmemi\u015f ve giderilmemi\u015f bir ar\u0131zadan sonra<\/li>\n<li><strong>Paralelleme i\u015flemleri<\/strong> kesicilerin canl\u0131 bara ile senkronize olmak i\u00e7in kapand\u0131\u011f\u0131<\/li>\n<li><strong>Kaynak restorasyonu<\/strong> a\u015fa\u011f\u0131 ak\u0131\u015f ar\u0131zalar\u0131n\u0131n devam etti\u011fi yukar\u0131 ak\u0131\u015f temizlemesinden sonra<\/li>\n<\/ul>\n<p>Bir kesici bir ar\u0131zan\u0131n \u00fczerine kapand\u0131\u011f\u0131 anda, yapma kuvvetleri \u00e7ok b\u00fcy\u00fckt\u00fcr - kararl\u0131 durum ar\u0131za ak\u0131m\u0131ndan \u00e7ok daha y\u00fcksektir. Ak\u0131m\u0131n ilk yar\u0131m \u00e7evrimi, devrenin g\u00fc\u00e7 fakt\u00f6r\u00fcne (veya X\/R oran\u0131na) ba\u011fl\u0131 olarak, RMS kararl\u0131 durum ar\u0131za ak\u0131m\u0131n\u0131n 2,0 ila 2,5 kat\u0131 olabilen tepe asimetrik bile\u015feni i\u00e7erir.<\/p>\n<p>Bu <strong>\u201cYapma An\u0131\u201d<\/strong>- bir kesicinin operasyonel \u00f6mr\u00fcndeki en \u015fiddetli an.<\/p>\n<h3>Icm'yi Hesaplama: k-Fakt\u00f6r\u00fc \u0130li\u015fkisi<\/h3>\n<p>IEC 60947-2, Icu'ya uygulanan bir \u00e7arpan (k-fakt\u00f6r\u00fc) cinsinden Icm'yi tan\u0131mlar. k-fakt\u00f6r\u00fc, Icu derecesiyle de\u011fi\u015fen test devresinin k\u0131sa devre g\u00fc\u00e7 fakt\u00f6r\u00fcne (cos\u03c6) ba\u011fl\u0131d\u0131r:<\/p>\n<table border=\"1\">\n<thead>\n<tr>\n<th>Icu Aral\u0131\u011f\u0131<\/th>\n<th>Test G\u00fc\u00e7 Fakt\u00f6r\u00fc (cos\u03c6)<\/th>\n<th>k-Fakt\u00f6r\u00fc<\/th>\n<th>Icm Tepe<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>6\u201310 kA<\/td>\n<td>0.5<\/td>\n<td>1.7<\/td>\n<td>1,7 \u00d7 Icu<\/td>\n<\/tr>\n<tr>\n<td>10\u201320 kA<\/td>\n<td>0.3<\/td>\n<td>2.0<\/td>\n<td>2,0 \u00d7 Icu<\/td>\n<\/tr>\n<tr>\n<td>20\u201350 kA<\/td>\n<td>0.25<\/td>\n<td>2.1<\/td>\n<td>2.1 \u00d7 Icu<\/td>\n<\/tr>\n<tr>\n<td>\u226550 kA<\/td>\n<td>0.2<\/td>\n<td>2.2<\/td>\n<td>2,2 \u00d7 Icu<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>\u00d6rnek:<\/strong> 100 kA Icu'ya sahip bir kesici (\u226550 kA aral\u0131\u011f\u0131nda), en az 2,2 \u00d7 100 kA = <strong>220 kA tepe<\/strong>.<\/p>\n<p>Sisteminizin olas\u0131 ar\u0131za ak\u0131m\u0131 90 kA RMS ise ve X\/R oran\u0131 200 kA'l\u0131k bir tepe asimetrik bile\u015feni g\u00f6steriyorsa, kesicinizin Icm'si o ar\u0131zan\u0131n \u00fczerine g\u00fcvenli bir \u015fekilde kapanmak i\u00e7in en az 200 kA tepe olmal\u0131d\u0131r.<\/p>\n<p><strong>Pro-\u0130pucu # 3:<\/strong> Yapma kapasitesini do\u011frulamak i\u00e7in, IEC 60947-2'den standartla\u015ft\u0131r\u0131lm\u0131\u015f k-fakt\u00f6r\u00fcn\u00fc kullan\u0131n: \u226550 kA Icu de\u011ferine sahip kesiciler i\u00e7in, Icm en az 2,2 \u00d7 Icu (tepe) olmal\u0131d\u0131r. 100 kA'l\u0131k bir kesicinin bir ar\u0131zan\u0131n \u00fczerine g\u00fcvenli bir \u015fekilde kapanmas\u0131 i\u00e7in Icm \u2265 220 kA tepe de\u011ferine ihtiyac\u0131 vard\u0131r. \u00c7o\u011fu modern kesici, Icu dereceleri i\u00e7in yeterli Icm ile tasarlanm\u0131\u015ft\u0131r, ancak transfer anahtar\u0131 uygulamalar\u0131, otomatik yeniden kapama \u015femalar\u0131 veya kesicinin ar\u0131za ko\u015fullar\u0131nda kapanabilece\u011fi herhangi bir senaryo i\u00e7in bu spesifikasyonu her zaman do\u011frulay\u0131n.<\/p>\n<figure><img decoding=\"async\" class=\"alignnone size-full wp-image-20271\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Icm-Making-Capacity-Calculation-table.webp\" alt=\"Icm Making Capacity Calculation table\" width=\"800\" height=\"450\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Icm-Making-Capacity-Calculation-table.webp 800w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Icm-Making-Capacity-Calculation-table-300x169.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Icm-Making-Capacity-Calculation-table-768x432.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Icm-Making-Capacity-Calculation-table-18x10.webp 18w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Icm-Making-Capacity-Calculation-table-600x338.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption>\u015eekil 3: IEC 60947-2'ye g\u00f6re Icm Yapma Kapasitesi Hesaplamas\u0131. k-fakt\u00f6r\u00fc (Icu'dan tepe Icm'ye \u00e7arpan), Icu derecesiyle de\u011fi\u015fen k\u0131sa devre g\u00fc\u00e7 fakt\u00f6r\u00fcne ba\u011fl\u0131d\u0131r. \u226550 kA Icu de\u011ferine sahip kesiciler i\u00e7in, Icm en az 2,2 \u00d7 Icu tepe olmal\u0131d\u0131r. \u00d6rnek: 100 kA'l\u0131k bir kesicinin bir ar\u0131zan\u0131n \u00fczerine g\u00fcvenli bir \u015fekilde kapanmas\u0131 i\u00e7in Icm \u2265 220 kA tepe de\u011ferine ihtiyac\u0131 vard\u0131r. Transfer anahtarlar\u0131, otomatik yeniden kapama ve paralelleme uygulamalar\u0131 i\u00e7in yapma kapasitesini do\u011frulamak i\u00e7in bu tabloyu kullan\u0131n.<\/figcaption><\/figure>\n<h3>Icm En \u00c7ok Ne Zaman \u00d6nemlidir<\/h3>\n<p>Kesicilerin normal (ar\u0131zas\u0131z) ko\u015fullarda kapand\u0131\u011f\u0131 ve yaln\u0131zca ar\u0131zalar\u0131 gidermek i\u00e7in a\u00e7\u0131ld\u0131\u011f\u0131 \u00e7o\u011fu sabit kurulum i\u00e7in, Icm do\u011frulamas\u0131 ikincildir - verilen Icu i\u00e7in \u00fcreticinin standart Icm'si tipik olarak yeterlidir.<\/p>\n<p>Ancak transfer anahtarlar\u0131, otomatik yeniden kapama sistemleri veya bir ar\u0131zan\u0131n \u00fczerine kapanman\u0131n olas\u0131 bir senaryo oldu\u011fu uygulamalar i\u00e7in Icm birincil bir spesifikasyon haline gelir. Her ikisini de do\u011frulay\u0131n:<\/p>\n<ol>\n<li>Icm \u2265 sisteminiz i\u00e7in tepe asimetrik ar\u0131za ak\u0131m\u0131<\/li>\n<li>Kesicinin mekanik ve elektriksel tasar\u0131m\u0131 yapma g\u00f6revi i\u00e7in uygundur (baz\u0131 kesiciler yaln\u0131zca \u201ca\u00e7ma\u201d i\u00e7indir ve ar\u0131zalar\u0131n \u00fczerine yapma i\u00e7in derecelendirilmemi\u015ftir)<\/li>\n<\/ol>\n<hr \/>\n<h2>Uygulaman\u0131z \u0130\u00e7in Hangi De\u011ferler \u00d6nemli<\/h2>\n<p>Art\u0131k her bir de\u011ferin ne anlama geldi\u011fini anlad\u0131\u011f\u0131n\u0131za g\u00f6re, i\u015fte uygulama mant\u0131\u011f\u0131:<\/p>\n<h3>Motor Besleyici Devreleri (A Kategorisi, Anl\u0131k A\u00e7ma)<\/h3>\n<ul>\n<li><strong>\u00d6ncelik 1:<\/strong> Icu \u2265 olas\u0131 ar\u0131za ak\u0131m\u0131 (10-20% marj ile)<\/li>\n<li><strong>\u00d6ncelik 2:<\/strong> Ics m\u00fcmk\u00fcn oldu\u011funca y\u00fcksek olmal\u0131\u2014end\u00fcstriyel g\u00fcvenilirlik i\u00e7in ideal olarak Icu'nun -100'\u00fc<\/li>\n<li><strong>\u00d6ncelik 3:<\/strong> Icm, IEC standard\u0131na g\u00f6re \u2265 k \u00d7 Icu oldu\u011funu do\u011frulay\u0131n (\u015falter do\u011fru se\u00e7ildiyse genellikle otomatik)<\/li>\n<li><strong>Uygulanamaz:<\/strong> Icw (Kategori A \u015falterlerde k\u0131sa s\u00fcreli gecikme yoktur)<\/li>\n<\/ul>\n<p>Bu \u015falterler ar\u0131za durumunda an\u0131nda a\u00e7ma yapar. G\u00fcvenilirli\u011finiz Ics'ye ba\u011fl\u0131d\u0131r. Ayn\u0131 \u00e7er\u00e7evedeki Ics ve 0 Ics \u015falter aras\u0131ndaki maliyet fark\u0131, ar\u0131za sonras\u0131 \u015falter de\u011fi\u015fimi ve \u00fcretim duru\u015f s\u00fcresinin maliyetine k\u0131yasla \u00f6nemsizdir.<\/p>\n<h3>Ana Giri\u015fler ve Bara Ba\u011flant\u0131 \u015ealterleri (Kategori B, Se\u00e7icilik Koordinasyonu)<\/h3>\n<ul>\n<li><strong>\u00d6ncelik 1:<\/strong> Icu \u2265 prospective fault current<\/li>\n<li><strong>\u00d6ncelik 2:<\/strong> Icw \u2265 kullanmay\u0131 planlad\u0131\u011f\u0131n\u0131z k\u0131sa s\u00fcreli gecikme ayar\u0131 i\u00e7in olas\u0131 ar\u0131za ak\u0131m\u0131 (hem ak\u0131m\u0131 HEM de s\u00fcreyi do\u011frulay\u0131n: \u00f6rne\u011fin, Icw = 0,5 saniye i\u00e7in 50 kA)<\/li>\n<li><strong>\u00d6ncelik 3:<\/strong> Ics = Icu'nun 0'\u00fc (ACB'ler ve premium MCCB'ler i\u00e7in standart)<\/li>\n<li><strong>\u00d6ncelik 4:<\/strong> Icm \u2265 k \u00d7 Icu oldu\u011funu do\u011frulay\u0131n<\/li>\n<\/ul>\n<p>Bu uygulamalar i\u00e7in Icw kritik hale gelir. Se\u00e7icilik i\u00e7in 0,5 saniyelik k\u0131sa s\u00fcreli bir gecikme ayarlarsan\u0131z, \u015falterin Icw de\u011feri bu s\u00fcre boyunca olas\u0131 ar\u0131za ak\u0131m\u0131n\u0131z\u0131 kar\u015f\u0131lamal\u0131d\u0131r.<\/p>\n<h3>Transfer \u015ealterleri (Ar\u0131za \u00dczerine Potansiyel Kapama)<\/h3>\n<ul>\n<li><strong>\u00d6ncelik 1:<\/strong> Icu \u2265 prospective fault current<\/li>\n<li><strong>\u00d6ncelik 2:<\/strong> Icm \u2265 tepe asimetrik ar\u0131za ak\u0131m\u0131 (sisteminizin X\/R oran\u0131ndan hesaplay\u0131n)<\/li>\n<li><strong>\u00d6ncelik 3:<\/strong> Ics = Icu'nun 0'\u00fc<\/li>\n<li><strong>\u00d6ncelik 4:<\/strong> \u015ealterin kapama g\u00f6revi i\u00e7in derecelendirildi\u011fini do\u011frulay\u0131n (t\u00fcm \u015falterler de\u011fil)<\/li>\n<\/ul>\n<p>Transfer \u015falterleri ve otomatik yeniden kapama i\u00e7in Icm \u00f6ncelik listesinde y\u00fckselir. \u015ealterin kontak kayna\u011f\u0131 veya mekanik ar\u0131za olmadan bir ar\u0131za \u00fczerine kapanabilece\u011finden emin olman\u0131z gerekir.<\/p>\n<p><strong>Pro-\u0130pucu # 4:<\/strong> An\u0131nda a\u00e7mal\u0131 motor besleme devreleri i\u00e7in spesifikasyon hiyerar\u015finiz \u015f\u00f6yledir: 1) Icu \u2265 olas\u0131 ar\u0131za ak\u0131m\u0131, 2) Ics m\u00fcmk\u00fcn oldu\u011funca y\u00fcksek (ideal olarak Icu'nun -100'\u00fc), 3) Icw ge\u00e7erli de\u011fil, 4) Icm \u2265 k \u00d7 Icu oldu\u011funu do\u011frulay\u0131n. Se\u00e7icilikli ana giri\u015fler i\u00e7in Icw'yi 1. veya 2. \u00f6ncelik olarak ekleyin ve zaman gecikmesi ayar s\u00fcrenizle e\u015fle\u015fti\u011finden emin olun.<\/p>\n<figure><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-20272\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Application-Specific-Ratings-Matrix.webp\" alt=\"Application-Specific Ratings Matrix\" width=\"800\" height=\"450\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Application-Specific-Ratings-Matrix.webp 800w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Application-Specific-Ratings-Matrix-300x169.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Application-Specific-Ratings-Matrix-768x432.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Application-Specific-Ratings-Matrix-18x10.webp 18w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Application-Specific-Ratings-Matrix-600x338.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption>\u015eekil 4: Uygulamaya \u00d6zel De\u011ferler Matrisi. Bu h\u0131zl\u0131 ba\u015fvuru k\u0131lavuzu, hangi devre kesici de\u011ferlerinin yayg\u0131n uygulamalar i\u00e7in kritik, ikincil veya ge\u00e7erli olmad\u0131\u011f\u0131n\u0131 g\u00f6sterir. Motor besleyiciler Icu\/Ics'ye odaklan\u0131r; ana giri\u015fler se\u00e7icilik i\u00e7in Icw ekler; transfer \u015falterleri Icm \u00f6nceli\u011fini y\u00fckseltir. Her uygulama i\u00e7in t\u00fcm de\u011ferler e\u015fit derecede \u00f6nemli de\u011fildir\u2014KURULUMUNUZ i\u00e7in g\u00fcvenilirli\u011fi hangi de\u011ferlerin y\u00f6netti\u011fini bilmek, do\u011fru spesifikasyonun anahtar\u0131d\u0131r.<\/figcaption><\/figure>\n<hr \/>\n<h2>Sonu\u00e7: K\u0131saltmalar\u0131n \u00d6tesinde<\/h2>\n<p>A\u00e7\u0131l\u0131\u015ftaki ar\u0131zal\u0131 \u015faltere geri d\u00f6nelim: 50 kA Icu, 25 kA Ics, 38 kA ar\u0131za ak\u0131m\u0131 sistemine kurulmu\u015f. Spesifikasyon hatas\u0131 bir yanl\u0131\u015f hesaplama de\u011fildi\u2014yanl\u0131\u015f de\u011feri kontrol etmekti.<\/p>\n<p>Icu, Ics, Icw ve Icm birbirinin yerine kullan\u0131lamaz. Her uygulama i\u00e7in e\u015fit derecede \u00f6nemli de\u011filler. Ve veri sayfas\u0131, KURULUMUNUZ i\u00e7in g\u00fcvenilirli\u011fi hangilerinin y\u00f6netti\u011fini size s\u00f6ylemez.<\/p>\n<p>Hiyerar\u015fi \u015f\u00f6yledir:<\/p>\n<ul>\n<li><strong>Icu<\/strong> giri\u015f \u015fart\u0131n\u0131zd\u0131r\u2014\u015falter maksimum olas\u0131 ar\u0131zay\u0131 kald\u0131rabilmelidir.<\/li>\n<li><strong>Ics<\/strong> g\u00fcvenilirlik metri\u011finizdir\u2014ar\u0131za sonras\u0131 servis verilebilirli\u011fini belirleyen de\u011ferdir.<\/li>\n<li><strong>Icw<\/strong> se\u00e7icilik etkinle\u015ftiricinizdir\u2014yaln\u0131zca k\u0131sa s\u00fcreli gecikmeli Kategori B \u015falterler i\u00e7in ge\u00e7erlidir.<\/li>\n<li><strong>Icm<\/strong> kapama do\u011frulaman\u0131zd\u0131r\u2014transfer \u015falterleri ve yeniden kapama uygulamalar\u0131 i\u00e7in kritiktir.<\/li>\n<\/ul>\n<p>\u00c7o\u011fu spesifikasyon hatas\u0131 ikinci ad\u0131mda ger\u00e7ekle\u015fir: yeterli Icu, yetersiz Ics. \u00c7\u00f6z\u00fcm basittir\u2014Ics \u2265 olas\u0131 ar\u0131za ak\u0131m\u0131n\u0131 belirtin ve kritik end\u00fcstriyel uygulamalar i\u00e7in Ics = Icu'nun 0'\u00fcnde \u0131srar edin. Fiyat fark\u0131 k\u00fc\u00e7\u00fckt\u00fcr. G\u00fcvenilirlik kazanc\u0131 her \u015feydir.<\/p>\n<p>Sizin <a href=\"https:\/\/test.viox.com\/tr\/mcb\/\">devre kesici<\/a>\u2018nin g\u00f6revi kurulumunuzu korumak ve bir sonraki ar\u0131zaya haz\u0131r kalmakt\u0131r. D\u00f6rt de\u011ferin t\u00fcm\u00fc \u00f6nemlidir\u2014ancak yaln\u0131zca uygulaman\u0131z i\u00e7in hangilerini kontrol edece\u011finizi biliyorsan\u0131z.<\/p>\n<p><strong>Ba\u015fvurulan Standartlar ve Kaynaklar:<\/strong><\/p>\n<ul>\n<li>IEC 60947-2:2024 (Al\u00e7ak gerilim anahtarlama ve kontrol d\u00fczeni \u2013 B\u00f6l\u00fcm 2: Devre kesiciler)<\/li>\n<li>IEC 60947-2:2024 Se\u00e7icilik Kategori tan\u0131mlar\u0131 (Kategori A ve B)<\/li>\n<li>IEC 60947-2:2024 K\u0131sa devre test dizileri (Icu i\u00e7in O\u2011t\u2011CO, Ics i\u00e7in O\u2011CO\u2011CO)<\/li>\n<li>IEC 60947-2:2024 Kapama kapasitesi k-fakt\u00f6r tablolar\u0131<\/li>\n<\/ul>\n<p><strong>G\u00fcncellik Beyan\u0131:<\/strong> T\u00fcm teknik \u00f6zellikler, de\u011fer tan\u0131mlar\u0131 ve standart referanslar Kas\u0131m 2025 itibar\u0131yla do\u011frudur. IEC 60947-2:2024 (S\u00fcr\u00fcm 6.0), Eyl\u00fcl 2024'te yay\u0131nlanan mevcut s\u00fcr\u00fcmd\u00fcr.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>The spec sheet looked perfect. 50 kA Icu rating, well above your calculated 38 kA fault current. You signed off on the order, the breaker shipped, installation went smoothly. Three months later, a short circuit on the main distribution bus. The breaker cleared the fault in milliseconds\u2014exactly as designed. But when your team powered back [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":20276,"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-20268","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\/20268","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=20268"}],"version-history":[{"count":3,"href":"https:\/\/test.viox.com\/tr\/wp-json\/wp\/v2\/posts\/20268\/revisions"}],"predecessor-version":[{"id":20275,"href":"https:\/\/test.viox.com\/tr\/wp-json\/wp\/v2\/posts\/20268\/revisions\/20275"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/test.viox.com\/tr\/wp-json\/wp\/v2\/media\/20276"}],"wp:attachment":[{"href":"https:\/\/test.viox.com\/tr\/wp-json\/wp\/v2\/media?parent=20268"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/test.viox.com\/tr\/wp-json\/wp\/v2\/categories?post=20268"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/test.viox.com\/tr\/wp-json\/wp\/v2\/tags?post=20268"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}