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{"id":1463,"date":"2020-03-13T11:27:54","date_gmt":"2020-03-13T08:27:54","guid":{"rendered":"https:\/\/maxwellmuhendislik.com.tr\/?p=1463"},"modified":"2021-01-31T21:51:29","modified_gmt":"2021-01-31T18:51:29","slug":"alcak-gerilim-devre-kesiciler","status":"publish","type":"post","link":"https:\/\/maxwellmuhendislik.com.tr\/2020\/03\/13\/alcak-gerilim-devre-kesiciler\/","title":{"rendered":"Al\u00e7ak Gerilim Y\u00fck Kesicileri"},"content":{"rendered":"

Al\u00e7ak Gerilim Y\u00fck Kesicileri Nedir?<\/h2>

Al\u00e7ak gerilim tesislerinde a\u015f\u0131r\u0131 ak\u0131m \u00e7ekilmesi veya k\u0131sa devre durumlar\u0131nda devreyi otomatik olarak a\u00e7an anahtarlama ve koruma elemanlar\u0131na al\u00e7ak gerilim y\u00fck kesiciler denmektedir.<\/p>

Al\u00e7ak Gerilim Y\u00fck kesicile<\/a>r normal \u015fartlarda elektrik devresinde a\u00e7ma, kapama ve devre ak\u0131m\u0131n\u0131 ge\u00e7irme i\u015flevlerini yerine getirirler. Ancak k\u0131sa devre ve a\u015f\u0131r\u0131 y\u00fck durumlar\u0131nda devrede a\u00e7ma i\u015flemi yaparak elektrik tesisatlar\u0131n\u0131, \u015febekeyi ve elektrik cihazlar\u0131n\u0131 korumaya yard\u0131mc\u0131 olmaktad\u0131r.<\/p>

Al\u00e7ak gerilim tesislerinde kullan\u0131lan 3 de\u011fi\u015fik tipte kesici modeli bulunmaktad\u0131r. Bunlar otomatik sigortalar, a\u00e7\u0131k tip \u015falterler ve kompakt (TM\u015e) \u015falterlerdir.<\/p>

Y\u00fck kesicilerinin \u00e7al\u0131\u015fma \u015fekline g\u00f6re \u00e7e\u015fitleri<\/h2>

Al\u00e7ak Gerilim Y\u00fck kesicile<\/a>r \u00e7al\u0131\u015fma \u015fekline g\u00f6re \u00fc\u00e7 grupta incelenebilir. Bunlar termik kesiciler, manyetik kesiciler ve elektronik kesicilerdir.<\/p>

Termik al\u00e7ak gerilim y\u00fck kesiciler<\/h3>

Termik kesiciler bimetal elemanlar i\u00e7eren kesicilerdir. Uzama katsay\u0131lar\u0131 farkl\u0131 iki metal birbirine yap\u0131\u015f\u0131k \u015fekilde kesicinin kurma teti\u011fini tutmaktad\u0131r. Kesici \u00fczerinden ve dolay\u0131s\u0131yla bimetaller \u00fczerinden ge\u00e7en a\u015f\u0131r\u0131 ak\u0131m bimetalin uzama katsay\u0131s\u0131 k\u00fc\u00e7\u00fck olana do\u011fru e\u011filmesine neden olur. Bu e\u011filme esnas\u0131nda konta\u011f\u0131 tutan kilit bo\u015fan\u0131r ve kontaklar a\u00e7\u0131larak devre kesilmi\u015f olur.<\/p>

Manyetik al\u00e7ak gerilim y\u00fck kesiciler<\/h3>

Manyetik kesiciler termik kesiciler benzeri bir mant\u0131kla \u00e7al\u0131\u015f\u0131r. Burada fark kontak kilidini devre d\u0131\u015f\u0131 b\u0131rakan nesnenin bir bimetal de\u011fil bir bobin olmas\u0131d\u0131r. Kesicinin ak\u0131m de\u011ferine uygun en fazla 2\u20133 spir say\u0131s\u0131na sahip bir bobin n\u00fcve etraf\u0131nda sar\u0131l\u0131d\u0131r. Ak\u0131m do\u011frudan bu bobinden ge\u00e7mektedir. Bobinden ge\u00e7en ak\u0131m normal seviyede oldu\u011fu m\u00fcddet\u00e7e kilit oynamaz. Ancak bobin \u00fczerinden ge\u00e7en a\u015f\u0131r\u0131 ak\u0131m y\u00fcksek elektromanyetik alan olu\u015fturur ve n\u00fcve kontak kilidini \u00e7ekerek kontaklar\u0131 a\u00e7ar ve enerjiyi keser.<\/p>

Termik ve manyetik kesiciler kendi i\u00e7erisinde \u00e7e\u015fitli se\u00e7eneklere ayr\u0131l\u0131rlar;<\/p>