Primer sarg\u0131s\u0131n\u0131n bir k\u0131sm\u0131n\u0131n veya tamam\u0131n\u0131n sekonder sarg\u0131s\u0131 olarak da kullan\u0131ld\u0131\u011f\u0131 ve her iki sarg\u0131s\u0131 da ayn\u0131 manyetik alan\u0131n etkisinde kalan trafolara oto trafolar denir.<\/p>

Normal trafolarda primer ve sekonder olmak \u00fczere iki ayr\u0131 sarg\u0131 bulunur. Oysa oto trafolar\u0131nda tek bir sarg\u0131 bulunur. Bu sarg\u0131 hem primer hem de sekonder g\u00f6revi yapar. Gerilim d\u00f6n\u00fc\u015f\u00fcm\u00fc bu sarg\u0131 \u00fczerinden yap\u0131l\u0131r. Bu nedenle toplamda sar\u0131m say\u0131s\u0131 azald\u0131\u011f\u0131 i\u00e7in bobinden<\/a><\/strong> ve i\u015f\u00e7ilikten kazan\u0131lm\u0131\u015f olur. <\/p>

\u015eekil 1:<\/strong> Oto Trafo<\/p>

Oto Trafolar\u0131 \u00d6zellikleri:<\/strong>
 \u25ba Ak\u0131m\u0131 ve gerilimi al\u00e7alt\u0131r veya y\u00fckseltir.<\/p>

\u25ba Verimi \u00f6l\u00e7\u00fcs\u00fcnde g\u00fc\u00e7 aktar\u0131m\u0131 yapar (\u00f6rne\u011fin; %95, %97 gibi).<\/p>

\u25ba Frekans\u0131 de\u011fi\u015ftirmez.<\/p>

\u25ba Giri\u015f g\u00fcc\u00fc \u00e7\u0131k\u0131\u015f g\u00fcc\u00fcne yakla\u015f\u0131k olarak e\u015fittir. Yani g\u00fcc\u00fc al\u00e7alt\u0131p y\u00fckseltmez.<\/p>

Oto Trafolar\u0131n\u0131n \u00c7al\u0131\u015fma Prensibi<\/strong><\/h3>

Oto trafolar\u0131n\u0131 daha iyi anlamak i\u00e7in iki sarg\u0131l\u0131 normal bir trafodan, oto trafosuna ge\u00e7i\u015fi incelemek daha yararl\u0131 olacakt\u0131r.<\/p>

(a)\u2019daki \u015fekilde iki sarg\u0131l\u0131 trafo g\u00f6r\u00fclmektedir. Bu trafonun<\/a><\/strong> primeri U1, sekonderi ise U2 geriliminde olsun. Trafolarda primer ve sekonder sarg\u0131larda sar\u0131m ba\u015f\u0131na ind\u00fcklenen gerilim ayn\u0131 oldu\u011fundan, primer sarg\u0131 \u00fczerinde, sekonder gerilime e\u015fit gerilim ind\u00fckleyen (M noktas\u0131) i\u015faretlenmi\u015ftir.
<\/p>

\u015eekil 2: <\/strong>\u0130ki Sarg\u0131l\u0131 Trafo ve Oto Trafo<\/p>

Primer sarg\u0131daki M-N noktalar\u0131 aras\u0131ndaki ind\u00fcklenen gerilim, sekonderin m-n noktalar\u0131 aras\u0131ndaki gerilimle ayn\u0131 de\u011ferdedir. B\u00f6ylelikle M-m ile N-n noktalar\u0131 ayn\u0131 gerilimde olduklar\u0131ndan birle\u015ftirilebilir. B\u00f6ylece bir sarg\u0131l\u0131 trafo elde edilmi\u015f olur. Bu durumda (b)\u2019de g\u00f6r\u00fcld\u00fc\u011f\u00fc gibi sekonder sarg\u0131 ortadan kalkm\u0131\u015f olur.\u00a0<\/p>

Oto Trafolar\u0131n\u0131n Faydalar\u0131:<\/strong>
\u25ba Oto trafolar\u0131n\u0131n sekonder sarg\u0131s\u0131n\u0131n olmamas\u0131 g\u00f6r\u00fclm\u00fc\u015ft\u00fc. Bu durum daha az bak\u0131r kullan\u0131lmas\u0131n\u0131 ve bak\u0131r kay\u0131plar\u0131n\u0131n da azalmas\u0131n\u0131 sa\u011flar.<\/p>

\u25ba Demir ve bak\u0131r\u0131n az kullan\u0131lmas\u0131 trafonun hafifli\u011fini ve ucuzlu\u011funu, kay\u0131plar\u0131n\u0131n az olmas\u0131 da verimin y\u00fcksekli\u011fini ger\u00e7ekle\u015ftirir.<\/p>

\u25ba Oto transformat\u00f6rlerinde d\u00f6n\u00fc\u015ft\u00fcrme oran<\/a><\/strong> U1\/U2 > 2 olursa ortak sarg\u0131lardaki ak\u0131m artar. Bu durumda sarg\u0131 kesiti kal\u0131n olaca\u011f\u0131ndan daha fazla bak\u0131r kullan\u0131l\u0131r. Buna ba\u011fl\u0131 olarak sarg\u0131larda olu\u015fan bak\u0131r kayb\u0131 da artar.<\/p>

\u25ba Oto trafolar\u0131nda tip g\u00fcc\u00fc azald\u0131k\u00e7a, manyetik n\u00fcve kesiti k\u00fc\u00e7\u00fcl\u00fcr. Bunun sonucu n\u00fcve i\u00e7in kullan\u0131lan demir miktar\u0131 azal\u0131r. Daha az demir kullan\u0131lmas\u0131 ile manyetik n\u00fcvede olu\u015fan demir kay\u0131plar\u0131 da azal\u0131r.<\/p>

\u015eekil 3:<\/strong> Al\u00e7ak Gerilim Oto Transformat\u00f6r<\/p>

Oto Trafolar\u0131n\u0131n Sak\u0131ncalar\u0131<\/strong><\/h2>

\u25ba Oto trafolar\u0131n\u0131n k\u0131sa devre<\/a><\/strong> gerilimleri \u00e7ok k\u00fc\u00e7\u00fck oldu\u011fundan (ukn <%1) k\u0131sa devre ak\u0131mlar\u0131 b\u00fcy\u00fck olur. K\u0131sa devre gerilimleri \u00e7ok zor ayarland\u0131\u011f\u0131ndan paralel ba\u011flanmalar\u0131 da \u00e7ok zor olur.<\/p>

\u25ba Oto trafolar\u0131n\u0131n bir taraf\u0131nda tehlikeli, di\u011fer taraf\u0131nda tehlikesiz gerilim bulunmas\u0131, yani giri\u015f ve \u00e7\u0131k\u0131\u015f gerilimleri aras\u0131ndaki fark\u0131n b\u00fcy\u00fck olmas\u0131, \u00e7ok sak\u0131ncal\u0131d\u0131r.<\/p>

\u25ba Primeri topraklanm\u0131\u015f olan oto trafolar\u0131nda, al\u00e7ak gerilim u\u00e7lar\u0131 ile toprak aras\u0131nda y\u00fcksek gerilim bulunur.<\/p>

Oto Trafolar\u0131n\u0131n Kullan\u0131m Alanlar\u0131<\/strong><\/h3>

\u25ba Oto trafolar\u0131ndan bir\u00e7ok u\u00e7 d\u0131\u015far\u0131 \u00e7\u0131kart\u0131larak \u00e7e\u015fitli gerilimler elde edilir. Bu bak\u0131mdan oto trafolar\u0131 bir potansiyometre gibi kullan\u0131labilir,
\u25ba \u00d6l\u00e7\u00fc trafosu olarak kullan\u0131labilir,
\u25ba Oto trafolar\u0131 gerilimi azaltarak asenkron<\/a><\/strong> motorlara yol vermede,<\/p>

\u25ba Gerilim y\u00fckseltmede,<\/p>

\u25ba Enerji iletim ve da\u011f\u0131t\u0131m \u015febekeleri ile bunlara ait hatlardaki gerilim d\u00fc\u015f\u00fcmlerini kar\u015f\u0131lamakta,<\/p>

\u25ba \u00c7e\u015fitli gerilimlerin elde edilmesinde kullan\u0131labilir.<\/p>

KAYNAK<\/a><\/p><\/div><\/div><\/div><\/div>

FAAL\u0130YETLER\u0130M\u0130Z<\/a><\/p>","protected":false},"excerpt":{"rendered":"

Y\u00fcksek Gerilim Trafo merkezleri g\u00fc\u00e7 sistemlerinin en \u00f6nemli bile\u015fenidir. \u00c7o\u011fu g\u00fc\u00e7 sistemleri, tek bir trafonun devre d\u0131\u015f\u0131 kalmas\u0131 g\u00f6z \u00f6n\u00fcne al\u0131narak tasarlan\u0131r. Bir dahili trafo ar\u0131zas\u0131n\u0131n oldu\u011fu durumlarda, ar\u0131zan\u0131n giderilmesi \u00e7ok uzun s\u00fcrebilir.<\/p>\n","protected":false},"author":1,"featured_media":1585,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[92,62,17,18,1],"tags":[68,89,47,93,55,67,90,49,86,88,87,83],"class_list":["post-1584","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-elektronik","category-endustriyeltesisler","category-energy","category-engineering","category-genel","tag-bakim","tag-diferansiyelakim","tag-elektrik","tag-elektronik","tag-endustriyel","tag-enerji","tag-harmonik","tag-muhendislik","tag-trafo","tag-yuksekakim","tag-yuksekempedans","tag-yuksekgerilim"],"yoast_head":"\n