{"id":19015,"date":"2025-07-28T14:33:59","date_gmt":"2025-07-28T06:33:59","guid":{"rendered":"https:\/\/viox.com\/?p=19015"},"modified":"2026-01-19T09:07:47","modified_gmt":"2026-01-19T01:07:47","slug":"dc-isolator-vs-ac-isolator-switch","status":"publish","type":"post","link":"https:\/\/test.viox.com\/tr\/dc-isolator-vs-ac-isolator-switch\/","title":{"rendered":"DC \u0130zolat\u00f6r ve AC \u0130zolat\u00f6r Anahtar\u0131: G\u00fcvenli Elektrik Tesisatlar\u0131 i\u00e7in Eksiksiz Kar\u015f\u0131la\u015ft\u0131rma K\u0131lavuzu"},"content":{"rendered":"<div class=\"product-intro\">\n<div style=\"background-color: #f9f9f9; border-left: 5px solid #fd041a; padding: 20px; margin-bottom: 30px;\">\n<h2 style=\"margin-top: 0;\">\u00d6nemli \u00c7\u0131kar\u0131mlar<\/h2>\n<ul style=\"margin-bottom: 0;\">\n<li><strong>S\u0131f\u0131r Ge\u00e7i\u015f Fakt\u00f6r\u00fc:<\/strong> AC ak\u0131m\u0131, arklar\u0131 do\u011fal olarak s\u0131f\u0131r ge\u00e7i\u015flerinde s\u00f6nd\u00fcr\u00fcr (100-120 kez\/sn), DC ak\u0131m\u0131 ise arklar\u0131 s\u00fcrekli olarak s\u00fcrd\u00fcr\u00fcr.<\/li>\n<li><strong>Tasar\u0131m Farkl\u0131l\u0131klar\u0131:<\/strong> DC izolat\u00f6rler manyetik \u00fcfleme bobinleri ve derin ark oluklar\u0131 gerektirir, bu da onlar\u0131 AC versiyonlar\u0131ndan fiziksel olarak daha b\u00fcy\u00fck ve daha pahal\u0131 hale getirir.<\/li>\n<li><strong>Gerilim D\u00fc\u015f\u00fcrme:<\/strong> DC uygulamalar\u0131 i\u00e7in bir AC izolat\u00f6r\u00fc kullanmak, voltaj kapasitesinde \u00f6nemli bir d\u00fc\u015f\u00fc\u015fe neden olur (\u00f6rne\u011fin, 690V AC \u2192 ~220V DC).<\/li>\n<li><strong>G\u00fcvenlik Kural\u0131:<\/strong> Yang\u0131n tehlikelerini ve kontak kayna\u011f\u0131n\u0131 \u00f6nlemek i\u00e7in Solar PV veya Ak\u00fc Depolama gibi DC sistemler i\u00e7in asla AC dereceli bir izolat\u00f6r kullanmay\u0131n.<\/li>\n<\/ul>\n<\/div>\n<p>Bak\u0131m teknisyeni izolat\u00f6r anahtar\u0131n\u0131 a\u00e7ar. 600 volt, 32 amper. \u00c7at\u0131daki g\u00fcne\u015f paneli dizisi i\u00e7in rutin kilitleme prosed\u00fcr\u00fc.<\/p>\n<p>Ancak anahtar DC i\u00e7in derecelendirilmemi\u015fti.<\/p>\n<p>Muhafazan\u0131n i\u00e7inde, ayr\u0131lan kontaklar aras\u0131nda bir ark olu\u015fur\u2014iyonize hava yoluyla 600V DC ileten parlak, s\u00fcrekli bir plazma k\u00f6pr\u00fcs\u00fc. Bir AC sisteminde, bu ark bir sonraki ak\u0131m s\u0131f\u0131r ge\u00e7i\u015finde 10 milisaniye i\u00e7inde do\u011fal olarak s\u00f6nerdi. Ancak DC ak\u0131m\u0131n\u0131n s\u0131f\u0131r ge\u00e7i\u015fleri yoktur. Ark devam eder. Kontaklar a\u015f\u0131nmaya ba\u015flar. S\u0131cakl\u0131k y\u00fckselir. Saniyeler i\u00e7inde, g\u00fcvenli ba\u011flant\u0131 kesme sa\u011flamas\u0131 gereken izolat\u00f6r, tam da en \u00e7ok izole edilmesi gerekti\u011fi anda s\u00fcrekli bir y\u00fcksek voltaj iletkeni haline gelir.<\/p>\n<p>Bu <strong>\u201cS\u0131f\u0131r Ge\u00e7i\u015f G\u00fcvenlik A\u011f\u0131\u201d<\/strong>\u2014AC'de var, DC'de yok. Ve izolat\u00f6r anahtarlar\u0131n\u0131n nas\u0131l tasarlanmas\u0131, derecelendirilmesi ve se\u00e7ilmesi gerekti\u011fi konusunda her \u015feyi de\u011fi\u015ftirir.<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone size-full wp-image-19021\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/isolator-switches.webp\" alt=\"isolator switches\" width=\"800\" height=\"600\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/isolator-switches.webp 800w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/isolator-switches-300x225.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/isolator-switches-768x576.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/isolator-switches-16x12.webp 16w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/isolator-switches-600x450.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<h2>\u0130zolat\u00f6r Anahtarlar\u0131 Nelerdir?<\/h2>\n<p>Bir <strong><a href=\"https:\/\/test.viox.com\/tr\/what-is-a-dc-isolator-switch\/\">izolat\u00f6r anahtar\u0131<\/a><\/strong> (ay\u0131r\u0131c\u0131 anahtar veya anahtar-ay\u0131r\u0131c\u0131 olarak da adland\u0131r\u0131l\u0131r), elektrik devresini g\u00fc\u00e7 kayna\u011f\u0131ndan izole etmek, g\u00fcvenli bak\u0131m ve onar\u0131m sa\u011flamak i\u00e7in tasarlanm\u0131\u015f mekanik bir anahtarlama cihaz\u0131d\u0131r. Taraf\u0131ndan y\u00f6netilir <a href=\"https:\/\/test.viox.com\/tr\/iec-60947-3-utilization-categories-guide\/\">IEC 60947-3:2020<\/a> al\u00e7ak gerilim \u015falt cihazlar\u0131 i\u00e7in (1000V AC ve 1500V DC'ye kadar), izolat\u00f6r anahtarlar\u0131, canl\u0131 iletkenler ve a\u015fa\u011f\u0131 ak\u0131\u015f ekipman\u0131 aras\u0131nda g\u00f6r\u00fclebilir bir ba\u011flant\u0131 kesme\u2014g\u00f6rebilece\u011finiz veya do\u011frulayabilece\u011finiz fiziksel bir bo\u015fluk\u2014sa\u011flar.<\/p>\n<p>Aksine <a href=\"https:\/\/test.viox.com\/tr\/circuit-breaker-vs-isolator-switch\/\">devre kesiciler<\/a>, izolat\u00f6rler, y\u00fck alt\u0131nda ar\u0131za ak\u0131mlar\u0131n\u0131 kesmek i\u00e7in tasarlanmam\u0131\u015ft\u0131r. Bunlar bak\u0131m ba\u011flant\u0131 kesicileridir. Devre enerjisizken veya minimum y\u00fck ta\u015f\u0131yorken bunlar\u0131 a\u00e7ars\u0131n\u0131z, a\u015fa\u011f\u0131 ak\u0131\u015fta \u00e7al\u0131\u015fma i\u00e7in g\u00fcvenli bir izolasyon noktas\u0131 olu\u015fturursunuz. \u00c7o\u011fu izolat\u00f6r, LOTO (Kilitleme\/Etiketleme) uyumlulu\u011fu i\u00e7in bir kilitleme mekanizmas\u0131 (asma kilit veya kilitlenebilir kol) i\u00e7erir.<\/p>\n<p>\u0130\u015fte izolat\u00f6r se\u00e7imini kritik yapan \u015fey: <strong>ark kesme<\/strong>fizi\u011fi\u2014anahtar\u0131 a\u00e7t\u0131ktan sonraki mikrosaniyelerde olanlar\u2014AC ve DC i\u00e7in temelde farkl\u0131d\u0131r. AC hizmeti i\u00e7in yeterli bir izolat\u00f6r, daha d\u00fc\u015f\u00fck voltajda bile DC hizmeti i\u00e7in tamamen yetersiz (ve tehlikeli) olabilir. Derecelendirme plakas\u0131 \u201c690V\u201d diyebilir, ancak bu 690V <em>AC<\/em>. 'dir. 600V DC g\u00fcne\u015f dizisinde mi kullan\u0131yorsunuz? Potansiyel bir ark parlamas\u0131 tehlikesi yaratt\u0131n\u0131z.<\/p>\n<p>Bu, k\u00fc\u00e7\u00fck bir teknik detay veya muhafazakar bir g\u00fcvenlik marj\u0131 de\u011fildir. Bu fiziktir. Ve nedenini anlamak, voltaj alt\u0131nda kontaklar ayr\u0131ld\u0131\u011f\u0131nda her anahtar\u0131n i\u00e7inde neler oldu\u011funa bakmay\u0131 gerektirir.<\/p>\n<p><strong>Pro-\u0130pucu #1:<\/strong> Veri sayfas\u0131nda a\u00e7\u0131k DC voltaj\/ak\u0131m de\u011ferleri yoksa, DC uygulamalar\u0131 i\u00e7in asla AC dereceli bir izolat\u00f6r kullanmay\u0131n. 690V AC dereceli bir izolat\u00f6r tipik olarak yaln\u0131zca 220-250V DC DC kapasitesine sahiptir\u2014a\u00e7\u0131k devrede 4 panelli bir g\u00fcne\u015f dizisinden daha az.<\/p>\n<h2>Ark S\u00f6n\u00fcmleme Sorunu: DC Neden Farkl\u0131?<\/h2>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-20304\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/viox-isolator-principle.svg\" alt=\"VIOX Isolator Switch Principle\" width=\"800\" height=\"680\" \/><\/p>\n<p>Voltaj alt\u0131nda herhangi bir anahtar\u0131 a\u00e7t\u0131\u011f\u0131n\u0131zda, bir ark olu\u015fur. Bu ka\u00e7\u0131n\u0131lmazd\u0131r. Kontaklar ayr\u0131ld\u0131k\u00e7a, aralar\u0131ndaki bo\u015fluk hala yeterince k\u00fc\u00e7\u00fckt\u00fcr\u2014mikrometreler, ard\u0131ndan milimetreler\u2014voltaj havan\u0131n iyonla\u015fmas\u0131na neden olarak iletken bir plazma kanal\u0131 olu\u015fturur. Mekanik kontaklar art\u0131k dokunmasa bile ak\u0131m bu ark boyunca akmaya devam eder.<\/p>\n<p>Anahtar\u0131n devreyi ger\u00e7ekten izole etmesi i\u00e7in bu ark\u0131n <strong>s\u00f6nd\u00fcr\u00fclmesi<\/strong>. gerekir. Ve AC ve DC'nin tamamen ayr\u0131ld\u0131\u011f\u0131 yer buras\u0131d\u0131r.<\/p>\n<h3>AC: Do\u011fal S\u0131f\u0131r Ge\u00e7i\u015fi<\/h3>\n<p>Alternatif ak\u0131m, ad\u0131ndan da anla\u015f\u0131laca\u011f\u0131 gibi, alternatiftir. 50 Hz'lik bir AC sistemi, saniyede 100 kez s\u0131f\u0131r voltaj\/ak\u0131m\u0131 ge\u00e7er. 60 Hz'lik bir sistem, saniyede 120 kez s\u0131f\u0131r\u0131 ge\u00e7er. Her 8,33 milisaniyede (60 Hz) veya 10 milisaniyede (50 Hz), ak\u0131m ak\u0131\u015f\u0131 y\u00f6n de\u011fi\u015ftirir\u2014ve s\u0131f\u0131rdan ge\u00e7er.<\/p>\n<p>Ak\u0131m s\u0131f\u0131r ge\u00e7i\u015finde, ark\u0131 s\u00fcrd\u00fcren enerji yoktur. Plazma de-iyonize olur. Ark s\u00f6ner. Kontaklar bir sonraki yar\u0131m d\u00f6ng\u00fcye kadar yeterince ayr\u0131lm\u0131\u015fsa, bo\u015flu\u011fun dielektrik dayan\u0131m\u0131 (yeniden tutu\u015fmadan voltaja dayanma yetene\u011fi) sistem voltaj\u0131n\u0131 a\u015far. Ark yeniden \u00e7arpmaz. \u0130zolasyon sa\u011flan\u0131r.<\/p>\n<p>Bu <strong>\u201cS\u0131f\u0131r Ge\u00e7i\u015f G\u00fcvenlik A\u011f\u0131.\u201d<\/strong> AC izolat\u00f6rleri bu do\u011fal kesintiye g\u00fcvenebilir. Kontak tasar\u0131mlar\u0131, bo\u015fluk mesafesi ve ark odas\u0131 geometrisi yaln\u0131zca ark\u0131n bir sonraki s\u0131f\u0131r ge\u00e7i\u015finden sonra yeniden \u00e7arpmamas\u0131n\u0131 sa\u011flamal\u0131d\u0131r. Nispeten affedici bir tasar\u0131m problemidir.<\/p>\n<h3>DC: Sonsuz Ark Sorunu<\/h3>\n<p>Do\u011fru ak\u0131m\u0131n s\u0131f\u0131r ge\u00e7i\u015fi yoktur. Asla. 600V DC'lik bir g\u00fcne\u015f dizisi s\u00fcrekli olarak 600 volt sa\u011flar. \u0130zolat\u00f6r kontaklar\u0131 ayr\u0131ld\u0131\u011f\u0131nda ve bir ark olu\u015ftu\u011funda, bu ark s\u00fcrekli enerji ile s\u00fcrd\u00fcr\u00fcl\u00fcr. Do\u011fal bir kesinti noktas\u0131 yoktur. Ark, \u00fc\u00e7 \u015feyden biri olana kadar s\u00fcresiz olarak devam edecektir:<\/p>\n<ol>\n<li><strong>Kontak bo\u015flu\u011fu, ark\u0131n bile k\u00f6pr\u00fcleyemeyece\u011fi kadar<\/strong> b\u00fcy\u00fcr (AC'den \u00e7ok daha b\u00fcy\u00fck fiziksel ayr\u0131m gerektirir)<\/li>\n<li><strong>Ark mekanik olarak gerilir, so\u011futulur ve d\u0131\u015far\u0131 \u00fcflenir<\/strong> manyetik alanlar ve ark oluklar\u0131 kullan\u0131larak<\/li>\n<li><strong>Kontaklar birbirine kaynaklan\u0131r<\/strong> s\u00fcrekli \u0131s\u0131tmadan, izolasyonun t\u00fcm amac\u0131n\u0131 ortadan kald\u0131r\u0131r<\/li>\n<\/ol>\n<p>Se\u00e7enek 3, DC hizmetinde AC dereceli bir izolat\u00f6r kulland\u0131\u011f\u0131n\u0131zda olan \u015feydir. AC i\u00e7in iyi \u00e7al\u0131\u015fan kontak ay\u0131rma h\u0131z\u0131 ve bo\u015fluk mesafesi\u2014\u00e7\u00fcnk\u00fc bir sonraki s\u0131f\u0131r ge\u00e7i\u015fi 10 milisaniyede gelir\u2014DC i\u00e7in yetersizdir. Ark devam eder. Kontak erozyonu h\u0131zlan\u0131r. En k\u00f6t\u00fc durumda, kontaklar kaynaklan\u0131r ve izolasyonu tamamen kaybedersiniz.<\/p>\n<p><strong>Pro-\u0130pucu #2:<\/strong> AC ak\u0131m\u0131 saniyede 100 kez (50 Hz) veya 120 kez (60 Hz) s\u0131f\u0131r\u0131 ge\u00e7er\u2014her s\u0131f\u0131r ge\u00e7i\u015fi, ark\u0131n do\u011fal olarak s\u00f6nmesi i\u00e7in bir f\u0131rsatt\u0131r. DC ak\u0131m\u0131 asla s\u0131f\u0131r\u0131 ge\u00e7mez. Bu k\u00fc\u00e7\u00fck bir fark de\u011fil\u2014DC izolat\u00f6rlerinin AC izolat\u00f6rlerinin ihtiya\u00e7 duymad\u0131\u011f\u0131 manyetik \u00fcfleme bobinlerine ve derin ark oluklar\u0131na ihtiya\u00e7 duymas\u0131n\u0131n nedeni budur.<\/p>\n<figure><img decoding=\"async\" class=\"alignnone size-full wp-image-20305\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/AC-vs-DC-Arc-Extinction-Mechanisms.webp\" alt=\"AC vs DC Arc Extinction Mechanisms\" width=\"800\" height=\"450\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/AC-vs-DC-Arc-Extinction-Mechanisms.webp 800w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/AC-vs-DC-Arc-Extinction-Mechanisms-300x169.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/AC-vs-DC-Arc-Extinction-Mechanisms-768x432.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/AC-vs-DC-Arc-Extinction-Mechanisms-18x10.webp 18w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/AC-vs-DC-Arc-Extinction-Mechanisms-600x338.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption>\u015eekil 1: AC ve DC Ark S\u00f6n\u00fcmleme Mekanizmalar\u0131. AC ak\u0131m\u0131 saniyede 100-120 kez s\u0131f\u0131r\u0131 ge\u00e7er ve do\u011fal ark kesme noktalar\u0131 sa\u011flar. DC ak\u0131m\u0131 asla s\u0131f\u0131r\u0131 ge\u00e7mez\u2014arklar mekanik olarak s\u00f6nd\u00fcr\u00fclene kadar s\u00fcrekli olarak devam eder.<\/figcaption><\/figure>\n<h2>DC \u0130zolat\u00f6r Tasar\u0131m\u0131: Ark Odas\u0131 Sava\u015f\u00e7\u0131s\u0131<\/h2>\n<p>DC arklar\u0131 kendili\u011finden s\u00f6nmeyece\u011finden, DC izolat\u00f6rleri agresif mekanik yollarla s\u00f6nmeyi zorlamal\u0131d\u0131r. Bu <strong>\u201cArk Odas\u0131 Sava\u015f\u00e7\u0131s\u0131\u201d<\/strong>\u2014bir DC izolat\u00f6r\u00fc sava\u015f i\u00e7in tasarlanm\u0131\u015ft\u0131r.<\/p>\n<h3>Manyetik \u00dcfleme Bobinleri<\/h3>\n<p>\u00c7o\u011fu DC izolat\u00f6r\u00fc, kontaklar\u0131n yak\u0131n\u0131na yerle\u015ftirilmi\u015f <strong>manyetik \u00fcfleme bobinleri<\/strong> veya kal\u0131c\u0131 m\u0131knat\u0131slar i\u00e7erir. Bir ark olu\u015ftu\u011funda, manyetik alan ark ak\u0131m\u0131yla (hareketli bir y\u00fck olan) etkile\u015fime girerek ark\u0131 kontaklardan uza\u011fa ve ark s\u00f6n\u00fcmleme odas\u0131na iten bir Lorentz kuvveti \u00fcretir.<\/p>\n<p>Bunu, ark\u0131 kalmak istedi\u011fi yerden fiziksel olarak iten manyetik bir el olarak d\u00fc\u015f\u00fcn\u00fcn. Ark\u0131 ne kadar h\u0131zl\u0131 ve uza\u011fa hareket ettirirseniz, o kadar \u00e7ok so\u011fur ve gerilir, ta ki kendini art\u0131k s\u00fcrd\u00fcremez hale gelene kadar.<\/p>\n<h3>Ark Oluklar\u0131 (Ay\u0131r\u0131c\u0131 Plakalar)<\/h3>\n<p>Ark ark odas\u0131na \u00fcflendikten sonra, <strong>ark oluklar\u0131yla<\/strong>kar\u015f\u0131la\u015f\u0131r\u2014ark\u0131 birden fazla k\u0131sa segmente ay\u0131ran metal plakalar (genellikle bak\u0131r) dizileri. Her segmentin kendi voltaj d\u00fc\u015f\u00fc\u015f\u00fc vard\u0131r. T\u00fcm segmentlerdeki toplam voltaj d\u00fc\u015f\u00fc\u015f\u00fc sistem voltaj\u0131n\u0131 a\u015ft\u0131\u011f\u0131nda, ark art\u0131k devam edemez. \u00c7\u00f6ker.<\/p>\n<p>DC izolat\u00f6rleri, ak\u0131m s\u0131f\u0131r ge\u00e7i\u015flerine g\u00fcvenemedikleri i\u00e7in AC izolat\u00f6rlerinden daha derin, daha agresif ark olu\u011fu tasar\u0131mlar\u0131 kullan\u0131r. Ark, her seferinde tam ak\u0131mda zorla s\u00f6nd\u00fcr\u00fclmelidir.<\/p>\n<h3>Y\u00fcksek G\u00fcm\u00fc\u015f Kontak Malzemeleri<\/h3>\n<p>DC arklar\u0131 kontaklar \u00fczerinde ac\u0131mas\u0131zd\u0131r. Tam voltajda s\u00fcrekli ark olu\u015fumu, h\u0131zl\u0131 erozyona ve \u0131s\u0131nmaya neden olur. Buna dayanmak i\u00e7in DC izolat\u00f6rleri, AC izolat\u00f6rlerinde yayg\u0131n olan bak\u0131r veya pirin\u00e7 kontaklardan daha iyi kaynaklanmaya ve erozyona direnen daha y\u00fcksek g\u00fcm\u00fc\u015f i\u00e7eri\u011fine (genellikle g\u00fcm\u00fc\u015f-tungsten veya g\u00fcm\u00fc\u015f-nikel ala\u015f\u0131mlar\u0131) sahip kontak malzemeleri kullan\u0131r.<\/p>\n<p>Sonu\u00e7? 32A'da 1000V DC i\u00e7in derecelendirilmi\u015f bir DC izolat\u00f6r\u00fc, fiziksel olarak daha b\u00fcy\u00fck, daha a\u011f\u0131r, daha karma\u015f\u0131k ve benzer \u015fekilde derecelendirilmi\u015f bir AC izolat\u00f6r\u00fcnden 2-3 kat daha pahal\u0131d\u0131r. Bu keyfi bir fiyatland\u0131rma de\u011fil\u2014s\u0131f\u0131r ge\u00e7i\u015f olmadan ark s\u00f6nmesini zorlaman\u0131n m\u00fchendislik maliyetidir.<\/p>\n<p><strong>Pro-\u0130pucu # 3:<\/strong> Fotovoltaik sistemler i\u00e7in, her zaman izolat\u00f6r\u00fcn DC voltaj derecesinin, beklenen en d\u00fc\u015f\u00fck s\u0131cakl\u0131kta dizinizin maksimum a\u00e7\u0131k devre voltaj\u0131n\u0131 (Voc) a\u015ft\u0131\u011f\u0131n\u0131 do\u011frulay\u0131n. 400W mod\u00fcllerden olu\u015fan 10 panelli bir dizi, -10\u00b0C'de 500-600V DC'ye ula\u015fabilir\u2014bir\u00e7ok \u201cDC \u00f6zellikli\u201d izolat\u00f6r\u00fc a\u015far. Ayr\u0131ca, a\u015fa\u011f\u0131daki k\u0131lavuzumuza bak\u0131n: <a href=\"https:\/\/test.viox.com\/tr\/connection-of-dc-isolators\/\">DC \u0130zolat\u00f6rlerin Ba\u011flant\u0131s\u0131<\/a> g\u00fcvenli kablolama uygulamalar\u0131 i\u00e7in.<\/p>\n<figure><\/figure>\n<figure><div id='gallery-1' class='gallery galleryid-19015 gallery-columns-3 gallery-size-full'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/test.viox.com\/tr\/?attachment_id=14986'><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/03\/VOPV-DC-Isolator-Switch-NL1_T-Series-1.webp\" class=\"attachment-full size-full\" alt=\"VOPV DC Isolator Switch NL1_T Series\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/03\/VOPV-DC-Isolator-Switch-NL1_T-Series-1.webp 800w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/03\/VOPV-DC-Isolator-Switch-NL1_T-Series-1-300x300.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/03\/VOPV-DC-Isolator-Switch-NL1_T-Series-1-150x150.webp 150w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/03\/VOPV-DC-Isolator-Switch-NL1_T-Series-1-768x768.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/03\/VOPV-DC-Isolator-Switch-NL1_T-Series-1-12x12.webp 12w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/03\/VOPV-DC-Isolator-Switch-NL1_T-Series-1-600x600.webp 600w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/03\/VOPV-DC-Isolator-Switch-NL1_T-Series-1-100x100.webp 100w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/03\/elementor\/thumbs\/VOPV-DC-Isolator-Switch-NL1_T-Series-1-r3ntkz9aljrq1yjgy0uif02c7rkuczs5lic1glcknc.webp 500w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/test.viox.com\/tr\/?attachment_id=14983'><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/03\/VOPV-DC-Isolator-Switch-NL1_T-Series.webp\" class=\"attachment-full size-full\" alt=\"VOPV DC Isolator Switch NL1 Series\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/03\/VOPV-DC-Isolator-Switch-NL1_T-Series.webp 800w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/03\/VOPV-DC-Isolator-Switch-NL1_T-Series-300x300.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/03\/VOPV-DC-Isolator-Switch-NL1_T-Series-150x150.webp 150w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/03\/VOPV-DC-Isolator-Switch-NL1_T-Series-768x768.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/03\/VOPV-DC-Isolator-Switch-NL1_T-Series-12x12.webp 12w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/03\/VOPV-DC-Isolator-Switch-NL1_T-Series-600x600.webp 600w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/03\/VOPV-DC-Isolator-Switch-NL1_T-Series-100x100.webp 100w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/test.viox.com\/tr\/vopv-dc-isolator-switch-l2-series\/'><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/03\/VOPV-DC-Isolator-Switch-L2-Series.webp\" class=\"attachment-full size-full\" alt=\"VOPV DC Isolator Switch L2 Series\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/03\/VOPV-DC-Isolator-Switch-L2-Series.webp 800w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/03\/VOPV-DC-Isolator-Switch-L2-Series-300x300.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/03\/VOPV-DC-Isolator-Switch-L2-Series-150x150.webp 150w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/03\/VOPV-DC-Isolator-Switch-L2-Series-768x768.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/03\/VOPV-DC-Isolator-Switch-L2-Series-12x12.webp 12w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/03\/VOPV-DC-Isolator-Switch-L2-Series-600x600.webp 600w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/03\/VOPV-DC-Isolator-Switch-L2-Series-100x100.webp 100w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/a>\n\t\t\t<\/div><\/figure>\n\t\t<\/div>\n<figcaption>\u015eekil 2: <a href=\"https:\/\/test.viox.com\/tr\/dc-isolator-switch\/\">Ger\u00e7ek DC \u0130zolat\u00f6r \u00dcr\u00fcn\u00fc<\/a>. 1000V DC ve 32A i\u00e7in derecelendirilmi\u015f bu end\u00fcstriyel DC izolat\u00f6r\u00fc, fotovoltaik uygulamalar i\u00e7in gereken \u00f6nemli yap\u0131y\u0131 g\u00f6stermektedir.<\/figcaption><\/figure>\n<h2>AC \u0130zolat\u00f6r Tasar\u0131m\u0131: S\u0131f\u0131r Ge\u00e7i\u015fte S\u00fcr\u00fc\u015f<\/h2>\n<p>AC izolat\u00f6rleri, kar\u015f\u0131la\u015ft\u0131rma yoluyla basittir. Manyetik \u00fcfleme bobinlerine ihtiya\u00e7lar\u0131 yoktur (baz\u0131lar\u0131 daha h\u0131zl\u0131 kesme i\u00e7in bunlar\u0131 i\u00e7erse de). Derin ark oluklar\u0131na ihtiya\u00e7lar\u0131 yoktur. Egzotik kontak malzemelerine ihtiya\u00e7lar\u0131 yoktur.<\/p>\n<p>Neden? \u00c7\u00fcnk\u00fc <strong>i\u015fin \u00e7o\u011funu s\u0131f\u0131r ge\u00e7i\u015fi yapar<\/strong>. AC izolat\u00f6r\u00fcn\u00fcn g\u00f6revi, ark\u0131 zorla s\u00f6nd\u00fcrmek de\u011fil\u2014do\u011fal s\u0131f\u0131r ge\u00e7i\u015f kesintisi sonras\u0131nda ark\u0131n yeniden \u00e7arpmamas\u0131n\u0131 sa\u011flamakt\u0131r.<\/p>\n<ul>\n<li><strong>Yeterli bo\u015fluk mesafesi:<\/strong> Voltaj ve kirlilik derecesine ba\u011fl\u0131 olarak, al\u00e7ak gerilim AC i\u00e7in tipik olarak 3-6 mm<\/li>\n<li><strong>Temel ark muhafazas\u0131:<\/strong> Y\u00fczeylerde ark izlemesini \u00f6nlemek i\u00e7in basit yal\u0131t\u0131m bariyerleri<\/li>\n<\/ul>\n<p>\u0130\u015fte bu kadar. AC izolat\u00f6rler, i\u015fin a\u011f\u0131r y\u00fck\u00fcn\u00fc yapmak i\u00e7in dalga formuna g\u00fcvenir. Mekanik tasar\u0131m\u0131n sadece ayak uydurmas\u0131 gerekir. 3 fazl\u0131 motorlar gibi belirli uygulamalar i\u00e7in, a\u015fa\u011f\u0131daki k\u0131lavuzumuza bak\u0131n: <a href=\"https:\/\/test.viox.com\/tr\/complete-guide-to-3-phase-isolator-switch\/\">3 Fazl\u0131 \u0130zolat\u00f6r Anahtar\u0131na Tam K\u0131lavuz<\/a>.<\/p>\n<figure><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-20308 aligncenter\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/ac-isolator-switch.webp\" alt=\"ac isolator switch\" width=\"353\" height=\"446\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/ac-isolator-switch.webp 806w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/ac-isolator-switch-238x300.webp 238w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/ac-isolator-switch-768x970.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/ac-isolator-switch-10x12.webp 10w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/ac-isolator-switch-600x758.webp 600w\" sizes=\"(max-width: 353px) 100vw, 353px\" \/><figcaption>\u015eekil 4: AC \u0130zolat\u00f6r Tasar\u0131m\u0131 (S\u0131f\u0131r Ge\u00e7i\u015fi Yakalama). Bu 3 fazl\u0131 AC izolat\u00f6r\u00fc, \u00e7arp\u0131c\u0131 bi\u00e7imde daha basit bir d\u0131\u015f yap\u0131 g\u00f6steriyor - g\u00f6r\u00fcn\u00fcrde ark odas\u0131 karma\u015f\u0131kl\u0131\u011f\u0131 yok.<\/figcaption><\/figure>\n<h2>Gerilim D\u00fc\u015f\u00fcrme Cezas\u0131<\/h2>\n<p>\u0130\u015fte bir\u00e7ok m\u00fchendisin yakaland\u0131\u011f\u0131 bir s\u00fcrpriz: e\u011fer <em>mutlak<\/em> DC i\u00e7in AC dereceli bir izolat\u00f6r kullan\u0131rsan\u0131z (ki kullanmamal\u0131s\u0131n\u0131z, ancak varsay\u0131msal olarak), DC voltaj kapasitesi AC derecesinden \u00f6nemli \u00f6l\u00e7\u00fcde d\u00fc\u015f\u00fckt\u00fcr. Bu <strong>\u201cGerilim D\u00fc\u015f\u00fcrme Cezas\u0131\u201dd\u0131r.\u201d<\/strong><\/p>\n<p>Tipik bir model:<\/p>\n<ul>\n<li>690V AC dereceli \u2192 yakla\u015f\u0131k 220-250V DC kapasitesi<\/li>\n<li>400V AC dereceli \u2192 yakla\u015f\u0131k 150-180V DC kapasitesi<\/li>\n<li>230V AC dereceli \u2192 yakla\u015f\u0131k 80-110V DC kapasitesi<\/li>\n<\/ul>\n<p>Neden bu kadar \u015fiddetli bir d\u00fc\u015f\u00fcrme? \u00c7\u00fcnk\u00fc DC ark voltaj\u0131, AC ark voltaj\u0131ndan temelde farkl\u0131d\u0131r. \u00dcreticiler bunu DC voltaj derecesini \u00f6nemli \u00f6l\u00e7\u00fcde azaltarak hesaba katarlar.<\/p>\n<p>Solar PV uygulamalar\u0131 i\u00e7in bu <strong>\u201cPV Dizgi Tuza\u011f\u0131\u201dd\u0131r.\u201d<\/strong> Yayg\u0131n bir 400W g\u00fcne\u015f panelinin, STC'de yakla\u015f\u0131k 48-50V a\u00e7\u0131k devre voltaj\u0131 (Voc) vard\u0131r. 10 paneli birlikte dizin: 480-500V. Ancak Voc, daha d\u00fc\u015f\u00fck s\u0131cakl\u0131klarda artar. 180V DC derecesine sahip 400V AC izolat\u00f6r m\u00fc? Tamamen yetersiz.<\/p>\n<p><strong>Pro-\u0130pucu # 4:<\/strong> \u0130zolat\u00f6rler, y\u00fcks\u00fcz veya minimum y\u00fckte anahtarlama i\u00e7in tasarlanm\u0131\u015ft\u0131r\u2014a\u015f\u0131r\u0131 ak\u0131m korumas\u0131 de\u011fil, bak\u0131m ba\u011flant\u0131 kesmeleridir. Hava ko\u015fullar\u0131na kar\u015f\u0131 koruma gerektiren ortamlar i\u00e7in, a\u015fa\u011f\u0131dakileri anlad\u0131\u011f\u0131n\u0131zdan emin olun: <a href=\"https:\/\/test.viox.com\/tr\/indoor-outdoor-isolator-switch-ip-ratings\/\">izolat\u00f6r anahtarlar\u0131 i\u00e7in IP dereceleri<\/a>.<\/p>\n<figure><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-20307\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/The-Voltage-Derating-Penalty-graph.webp\" alt=\"The Voltage Derating Penalty graph\" width=\"800\" height=\"450\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/The-Voltage-Derating-Penalty-graph.webp 800w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/The-Voltage-Derating-Penalty-graph-300x169.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/The-Voltage-Derating-Penalty-graph-768x432.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/The-Voltage-Derating-Penalty-graph-18x10.webp 18w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/The-Voltage-Derating-Penalty-graph-600x338.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption>\u015eekil 5: Gerilim D\u00fc\u015f\u00fcrme Cezas\u0131. AC dereceli izolat\u00f6rler, DC uygulamalar\u0131 i\u00e7in kullan\u0131ld\u0131\u011f\u0131nda voltaj kapasitelerinin -70'ini kaybeder.<\/figcaption><\/figure>\n<h2>DC ve AC \u0130zolat\u00f6r: Temel \u00d6zelliklerin Kar\u015f\u0131la\u015ft\u0131r\u0131lmas\u0131<\/h2>\n<table border=\"1\" cellspacing=\"0\" cellpadding=\"10\">\n<thead>\n<tr>\n<th>\u015eartname<\/th>\n<th>AC \u0130zolat\u00f6r\u00fc<\/th>\n<th>DC \u0130zolat\u00f6r<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Ark S\u00f6nd\u00fcrme Mekanizmas\u0131<\/strong><\/td>\n<td>Do\u011fal ak\u0131m s\u0131f\u0131r ge\u00e7i\u015fi (100-120 kez\/sn)<\/td>\n<td>Zorlanm\u0131\u015f mekanik s\u00f6nd\u00fcrme (manyetik \u00fcfleme + ark oluklar\u0131)<\/td>\n<\/tr>\n<tr>\n<td><strong>Gerekli Kontak Aral\u0131\u011f\u0131<\/strong><\/td>\n<td>3-6mm (voltaja g\u00f6re de\u011fi\u015fir)<\/td>\n<td>8-15mm (ayn\u0131 voltaj i\u00e7in daha b\u00fcy\u00fck aral\u0131k)<\/td>\n<\/tr>\n<tr>\n<td><strong>Ark Oluk Tasar\u0131m\u0131<\/strong><\/td>\n<td>Minimum veya hi\u00e7 yok<\/td>\n<td>Derin ay\u0131r\u0131c\u0131 plakalar, agresif geometri<\/td>\n<\/tr>\n<tr>\n<td><strong>Manyetik \u00dcfleme<\/strong><\/td>\n<td>\u0130ste\u011fe ba\u011fl\u0131 (h\u0131zl\u0131 kesinti i\u00e7in)<\/td>\n<td>Zorunlu (kal\u0131c\u0131 m\u0131knat\u0131slar veya bobinler)<\/td>\n<\/tr>\n<tr>\n<td><strong>\u0130leti\u015fim Malzemesi<\/strong><\/td>\n<td>Bak\u0131r, pirin\u00e7, standart ala\u015f\u0131mlar<\/td>\n<td>Y\u00fcksek g\u00fcm\u00fc\u015f i\u00e7eri\u011fi (Ag-W, Ag-Ni ala\u015f\u0131mlar\u0131)<\/td>\n<\/tr>\n<tr>\n<td><strong>Voltaj Derecelendirme \u00d6rne\u011fi<\/strong><\/td>\n<td>690V AC<\/td>\n<td>1000V DC veya 1500V DC<\/td>\n<\/tr>\n<tr>\n<td><strong>Ak\u0131m Derecelendirme \u00d6rne\u011fi<\/strong><\/td>\n<td>32A, 63A, 125A tipik<\/td>\n<td>16A-1600A (PV\/ESS i\u00e7in daha geni\u015f aral\u0131k)<\/td>\n<\/tr>\n<tr>\n<td><strong>Tipik Uygulamalar<\/strong><\/td>\n<td>Motor kontrol\u00fc, HVAC, end\u00fcstriyel AC da\u011f\u0131t\u0131m\u0131<\/td>\n<td>Solar PV, batarya depolama, EV \u015farj\u0131, DC mikro \u015febekeler<\/td>\n<\/tr>\n<tr>\n<td><strong>Standartlar<\/strong><\/td>\n<td>IEC 60947-3:2020 (AC kullan\u0131m kategorileri)<\/td>\n<td>IEC 60947-3:2020 (DC kullan\u0131m kategorileri: DC-21B, DC-PV2)<\/td>\n<\/tr>\n<tr>\n<td><strong>Boyut ve A\u011f\u0131rl\u0131k<\/strong><\/td>\n<td>Kompakt, hafif<\/td>\n<td>Daha b\u00fcy\u00fck, daha a\u011f\u0131r (ayn\u0131 ak\u0131m derecesi i\u00e7in 2-3 kat boyut)<\/td>\n<\/tr>\n<tr>\n<td><strong>Maliyet<\/strong><\/td>\n<td>Daha d\u00fc\u015f\u00fck (temel)<\/td>\n<td>2-3 kat daha pahal\u0131<\/td>\n<\/tr>\n<tr>\n<td><strong>A\u00e7\u0131l\u0131\u015fta Ark S\u00fcresi<\/strong><\/td>\n<td>&lt;10ms (bir sonraki s\u0131f\u0131r ge\u00e7i\u015fine kadar)<\/td>\n<td>Mekanik olarak s\u00f6nd\u00fcr\u00fclene kadar s\u00fcrekli<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>Anahtar Paket:<\/strong> DC izolat\u00f6rler i\u00e7in \u201c2-3 kat maliyet cezas\u0131\u201d fiyat \u015fi\u015firmesi de\u011fildir - s\u0131f\u0131r ge\u00e7i\u015f olmadan arklar\u0131 s\u00f6nd\u00fcrmenin temel fizik vergisini yans\u0131t\u0131r.<\/p>\n<h2>DC ve AC \u0130zolat\u00f6rler Ne Zaman Kullan\u0131l\u0131r<\/h2>\n<p>Karar, tercihe veya maliyet optimizasyonuna ba\u011fl\u0131 de\u011fildir - izolat\u00f6r\u00fcn ark s\u00f6nd\u00fcrme yetene\u011fini sisteminizin ak\u0131m t\u00fcr\u00fcyle e\u015fle\u015ftirmekle ilgilidir.<\/p>\n<h3>DC \u0130zolat\u00f6rleri \u015eunlar \u0130\u00e7in Kullan\u0131n:<\/h3>\n<p><strong>1. Solar Fotovoltaik (PV) Sistemler<\/strong><br \/>\nHer g\u00fcne\u015f paneli DC dizisi, dizi ve invert\u00f6r aras\u0131nda izolasyon gerektirir. Dizi voltajlar\u0131 genellikle 600-1000V DC'ye ula\u015f\u0131r. \u00d6zellikle PV anahtarlama g\u00f6revi i\u00e7in tasarlanm\u0131\u015f IEC 60947-3 DC-PV2 kullan\u0131m kategorisini aray\u0131n. A\u015fa\u011f\u0131daki k\u0131lavuzumuza bak\u0131n: <a href=\"https:\/\/test.viox.com\/tr\/solar-combiner-box-voltage-ratings-600v-vs-1000v-vs-1500v\/\">G\u00fcne\u015f Birle\u015ftirici Kutusu Voltaj De\u011ferleri<\/a> daha fazla ayr\u0131nt\u0131 i\u00e7in.<\/p>\n<p><strong>2. Batarya Enerji Depolama Sistemleri (ESS)<\/strong><br \/>\nBatarya bankalar\u0131, 48V'den 800V+'ya kadar de\u011fi\u015fen DC voltajlar\u0131nda \u00e7al\u0131\u015f\u0131r. Batarya mod\u00fclleri ve invert\u00f6rler aras\u0131nda izolasyon gereklidir.<\/p>\n<p><strong>3. EV \u015earj Altyap\u0131s\u0131<\/strong><br \/>\nDC h\u0131zl\u0131 \u015farj cihazlar\u0131, do\u011frudan ara\u00e7 bataryalar\u0131na 400-800V DC sa\u011flar.<\/p>\n<p><strong>4. DC Mikro \u015eebekeler ve Veri Merkezleri<\/strong><br \/>\nVeri merkezleri, d\u00f6n\u00fc\u015f\u00fcm kay\u0131plar\u0131n\u0131 azaltmak i\u00e7in giderek artan bir \u015fekilde 380V DC da\u011f\u0131t\u0131m\u0131 kullanmaktad\u0131r.<\/p>\n<p><strong>5. Denizcilik ve Demiryolu DC Da\u011f\u0131t\u0131m\u0131<\/strong><br \/>\nGemiler ve trenler onlarca y\u0131ld\u0131r DC da\u011f\u0131t\u0131m\u0131 (24V, 48V, 110V, 750V) kullanmaktad\u0131r.<\/p>\n<h3>AC \u0130zolat\u00f6rleri \u015eunlar \u0130\u00e7in Kullan\u0131n:<\/h3>\n<p><strong>1. Motor Kontrol Devreleri<\/strong><br \/>\nAC ind\u00fcksiyon motorlar\u0131, HVAC sistemleri ve pompalar i\u00e7in izolasyon.<\/p>\n<p><strong>Bina AC Da\u011f\u0131t\u0131m\u0131<\/strong><br \/>\nAyd\u0131nlatma panelleri ve genel bina y\u00fckleri i\u00e7in izolasyon.<\/p>\n<p><strong>End\u00fcstriyel AC Kontrol Panelleri<\/strong><br \/>\nMakine kontrol kabinleri ile <a href=\"https:\/\/test.viox.com\/tr\/ac-contactor\/\">AC kontakt\u00f6rler<\/a> ve PLC'ler.<\/p>\n<h3>Kritik Kural<\/h3>\n<p>Sistem voltaj\u0131n\u0131z DC ise\u201448V DC olsa bile\u2014DC de\u011ferinde bir izolat\u00f6r kullan\u0131n. Ark fizi\u011fi voltaj seviyesini \u00f6nemsemez; dalga formu t\u00fcr\u00fcn\u00fc \u00f6nemser. 48V DC ark\u0131, yaln\u0131zca AC anahtar\u0131nda bile devam edebilir ve kontak kayna\u011f\u0131na neden olabilir.<\/p>\n<figure><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-20306\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/DC-Isolator-in-Solar-PV-Application.webp\" alt=\"DC Isolator in Solar PV Application\" width=\"700\" height=\"467\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/DC-Isolator-in-Solar-PV-Application.webp 700w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/DC-Isolator-in-Solar-PV-Application-300x200.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/DC-Isolator-in-Solar-PV-Application-18x12.webp 18w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/DC-Isolator-in-Solar-PV-Application-600x400.webp 600w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><figcaption>\u015eekil 6: Solar PV Uygulamas\u0131nda DC \u0130zolat\u00f6r (Ger\u00e7ek D\u00fcnya Ba\u011flam\u0131). Bu a\u00e7\u0131k birle\u015ftirici kutusu, ger\u00e7ek saha da\u011f\u0131t\u0131m\u0131nda DC izolasyon anahtarlar\u0131n\u0131, sigortalar\u0131, bara ve konekt\u00f6r kablolar\u0131n\u0131 g\u00f6sterir.<\/figcaption><\/figure>\n<h2>Se\u00e7im K\u0131lavuzu: DC \u0130zolat\u00f6rler i\u00e7in 4 Ad\u0131ml\u0131 Y\u00f6ntem<\/h2>\n<h3>Ad\u0131m 1: Maksimum Sistem Voltaj\u0131n\u0131 Hesaplay\u0131n<\/h3>\n<p>\u0130\u00e7in <strong>Solar PV:<\/strong> En d\u00fc\u015f\u00fck beklenen ortam s\u0131cakl\u0131\u011f\u0131nda string Voc'yi hesaplay\u0131n. Voc, 25\u00b0C'nin alt\u0131ndaki her \u00b0C i\u00e7in yakla\u015f\u0131k 0,3-0,4'e kadar artar.<\/p>\n<ul>\n<li>\u00d6rnek: 10 panelli string, STC'de Voc = 49V\/panel. -10\u00b0C'de: 49V \u00d7 1,14 (s\u0131cakl\u0131k fakt\u00f6r\u00fc) \u00d7 10 panel = <strong>559V DC minimum izolat\u00f6r de\u011feri<\/strong><\/li>\n<\/ul>\n<p><strong>Uzman \u0130pucu:<\/strong> G\u00fcvenlik marj\u0131 i\u00e7in her zaman izolat\u00f6r voltaj de\u011ferini hesaplanan maksimum sistem voltaj\u0131n\u0131n en az \u00fczerinde belirtin.<\/p>\n<h3>Ad\u0131m 2: Ak\u0131m De\u011ferini Belirleyin<\/h3>\n<p>\u0130\u00e7in <strong>Solar PV:<\/strong> String k\u0131sa devre ak\u0131m\u0131 (Isc) \u00d7 1,25 g\u00fcvenlik fakt\u00f6r\u00fc kullan\u0131n.<\/p>\n<h3>Ad\u0131m 3: Kullan\u0131m Kategorisini Do\u011frulay\u0131n<\/h3>\n<p>IEC 60947-3 kullan\u0131m kategorisi i\u00e7in veri sayfas\u0131na bak\u0131n: genel DC devreleri i\u00e7in DC-21B, \u00f6zellikle fotovoltaik DC anahtarlama i\u00e7in DC-PV2.<\/p>\n<h3>Ad\u0131m 4: K\u0131sa Devre De\u011ferini Onaylay\u0131n (Gerekirse)<\/h3>\n<p>\u00c7o\u011fu izolat\u00f6r, y\u00fcks\u00fcz veya minimum y\u00fckte anahtarlama i\u00e7in tasarlanm\u0131\u015ft\u0131r. D\u00fczenli y\u00fck anahtarlamas\u0131 veya ar\u0131za kesintisi i\u00e7in, bir <a href=\"https:\/\/test.viox.com\/tr\/dc-isolator-vs-dc-circuit-breaker-complete-comparison-guide\/\">DC devre kesici<\/a> yerine.<\/p>\n<p><strong>Uzman \u0130pucu #5:<\/strong> DC izolat\u00f6rler, e\u015fde\u011fer AC izolat\u00f6rlerden 2-3 kat daha pahal\u0131d\u0131r, \u00e7\u00fcnk\u00fc temelde farkl\u0131 kontak malzemeleri, manyetik \u00fcfleme sistemleri ve derin ark s\u00f6nd\u00fcrme odalar\u0131 gerektirirler.<\/p>\n<h2>S\u0131k\u00e7a Sorulan Sorular<\/h2>\n<div>\n<div>\n<h3>DC uygulamalar\u0131nda AC izolat\u00f6r\u00fc kullanabilir miyim?<\/h3>\n<div>\n<div>\n<p>Hay\u0131r, genellikle yapamazs\u0131n\u0131z. AC izolat\u00f6rler, elektrik arklar\u0131n\u0131 s\u00f6nd\u00fcrmek i\u00e7in alternatif ak\u0131m\u0131n \u201cs\u0131f\u0131r ge\u00e7i\u015fine\u201d g\u00fcvenir. DC ak\u0131m\u0131n\u0131n s\u0131f\u0131r ge\u00e7i\u015fi yoktur, bu da arklar\u0131n bir AC anahtar\u0131nda s\u00fcresiz olarak devam edebilece\u011fi, a\u015f\u0131r\u0131 \u0131s\u0131nmaya, yang\u0131na ve kontak kayna\u011f\u0131na yol a\u00e7abilece\u011fi anlam\u0131na gelir.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<div>\n<h3>DC izolat\u00f6rler neden AC izolat\u00f6rlerden daha b\u00fcy\u00fckt\u00fcr?<\/h3>\n<div>\n<div>\n<p>DC izolat\u00f6rler, ark\u0131n s\u00f6nmesini mekanik olarak zorlamak i\u00e7in manyetik \u00fcfleme bobinleri ve daha derin ark oluklar\u0131 (ay\u0131r\u0131c\u0131 plakalar) gibi daha b\u00fcy\u00fck dahili bile\u015fenler gerektirir. Ayr\u0131ca, ark\u0131n yeniden olu\u015fmas\u0131n\u0131 \u00f6nlemek i\u00e7in daha geni\u015f kontak aral\u0131klar\u0131 gerektirirler.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<div>\n<h3>DC izolat\u00f6r ve DC devre kesici aras\u0131ndaki fark nedir?<\/h3>\n<div>\n<div>\n<p>Bir DC izolat\u00f6r, \u00f6ncelikle bak\u0131m ba\u011flant\u0131 kesmesi (devreyi izole etme) i\u00e7in tasarlanm\u0131\u015ft\u0131r ve genellikle y\u00fcks\u00fcz \u00e7al\u0131\u015ft\u0131r\u0131l\u0131r. Bir <a href=\"https:\/\/test.viox.com\/tr\/what-is-a-dc-circuit-breaker\/\">DC devre kesici<\/a> a\u015f\u0131r\u0131 y\u00fcklere ve k\u0131sa devrelere kar\u015f\u0131 otomatik koruma sa\u011flar ve y\u00fck alt\u0131nda ar\u0131za ak\u0131mlar\u0131n\u0131 kesmek i\u00e7in tasarlanm\u0131\u015ft\u0131r.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<h2>Sonu\u00e7: Fizik \u0130ste\u011fe Ba\u011fl\u0131 De\u011fildir<\/h2>\n<p>DC ve AC izolat\u00f6r anahtarlar\u0131 aras\u0131ndaki fark, de\u011ferler, maliyet veya tercih meselesi de\u011fildir. Bu fiziktir.<\/p>\n<p>AC izolat\u00f6rler \u015funa g\u00fcvenir: <strong>\u201cS\u0131f\u0131r Ge\u00e7i\u015f G\u00fcvenlik A\u011f\u0131\u201d<\/strong>. DC izolat\u00f6rler \u015fununla kar\u015f\u0131 kar\u015f\u0131yad\u0131r: <strong>\u201cSonsuz Ark Sorunu\u201d<\/strong>. Anahtar, manyetik \u00fcfleme bobinleri ve derin ark oluklar\u0131 yoluyla s\u00f6nd\u00fcrmeyi zorlamad\u0131\u011f\u0131 s\u00fcrece ark s\u00fcresiz olarak devam edecektir.<\/p>\n<p>Bir solar PV string veya pil depolama i\u00e7in bir izolat\u00f6r belirtti\u011finizde, bir ark s\u00f6nd\u00fcrme sistemi se\u00e7iyorsunuz. Yanl\u0131\u015f olan\u0131 kullan\u0131rsan\u0131z, s\u00fcrekli ark ve yang\u0131n riskini al\u0131rs\u0131n\u0131z. Kural basittir: Voltaj\u0131n\u0131z DC ise, DC de\u011ferinde bir izolat\u00f6r kullan\u0131n.<\/p>\n<p>Fizik pazarl\u0131k konusu de\u011fildir. Buna g\u00f6re se\u00e7in.<\/p>\n<hr \/>\n<p><strong>Solar PV veya pil depolama projeniz i\u00e7in DC izolat\u00f6rleri se\u00e7me konusunda yard\u0131ma m\u0131 ihtiyac\u0131n\u0131z var?<\/strong> IEC 60947-3 uyumlu DC anahtarlama \u00e7\u00f6z\u00fcmleri hakk\u0131nda teknik rehberlik i\u00e7in uygulama m\u00fchendisli\u011fi ekibimizle ileti\u015fime ge\u00e7in.<\/p>\n<\/div>\n<div class=\"simg-pop-btn\" style=\"top: 466.914px; left: 14px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 466.914px; left: 14px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 653.914px; left: 14px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 653.914px; left: 14px; display: none;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>Key Takeaways Zero-Crossing Factor: AC current naturally extinguishes arcs at zero-crossings (100-120 times\/sec), while DC current sustains arcs continuously. Design Differences: DC isolators require magnetic blow-out coils and deep arc chutes, making them physically larger and more expensive than AC versions. Voltage Derating: Using an AC isolator for DC applications results in a significant drop [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":19023,"comment_status":"closed","ping_status":"open","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-19015","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\/19015","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=19015"}],"version-history":[{"count":3,"href":"https:\/\/test.viox.com\/tr\/wp-json\/wp\/v2\/posts\/19015\/revisions"}],"predecessor-version":[{"id":21359,"href":"https:\/\/test.viox.com\/tr\/wp-json\/wp\/v2\/posts\/19015\/revisions\/21359"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/test.viox.com\/tr\/wp-json\/wp\/v2\/media\/19023"}],"wp:attachment":[{"href":"https:\/\/test.viox.com\/tr\/wp-json\/wp\/v2\/media?parent=19015"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/test.viox.com\/tr\/wp-json\/wp\/v2\/categories?post=19015"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/test.viox.com\/tr\/wp-json\/wp\/v2\/tags?post=19015"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}