{"id":2641,"date":"2024-08-01T01:17:08","date_gmt":"2024-07-31T18:17:08","guid":{"rendered":"https:\/\/www.tneutron.net\/elektro\/?p=2641"},"modified":"2024-07-31T13:39:21","modified_gmt":"2024-07-31T06:39:21","slug":"teori-dasar-transformator","status":"publish","type":"post","link":"https:\/\/www.tneutron.net\/elektro\/teori-dasar-transformator\/","title":{"rendered":"Teori Dasar Transformator"},"content":{"rendered":"<p>Transformator (trafo) ialah alat listrik\/elektronika yang berfungsi memindahkan tenaga (daya) listrik dari input ke output atau dari sisi primer ke sisi sekunder. Pemindahan daya listrik dari primer ke sekunder disertai dengan perubahan tegangan baik naik maupun turun. Ada dua jenis trafo yaitu trafo penaik tegangan (step up transformer) dan trafo penurun tegangan (step down transformer). Jika tegangan primer lebih kecil dari tegangan sekunder, maka dinamakan trafo step up. Tetapi jika tegangan primer lebih besar dari tegangan sekunder, maka dinamakan trafo step down.<br \/>\n<a href=\"https:\/\/www.tneutron.net\/elektro\/wp-content\/uploads\/sites\/2\/2017\/03\/image-16.png\"><img loading=\"lazy\" decoding=\"async\" style=\"background-image: none; padding-top: 0px; padding-left: 0px; margin: 0px; display: inline; padding-right: 0px; border-width: 0px;\" title=\"image\" src=\"https:\/\/www.tneutron.net\/elektro\/wp-content\/uploads\/sites\/2\/2017\/03\/image_thumb-16.png\" alt=\"image\" width=\"284\" height=\"187\" border=\"0\" \/><\/a><\/p>\n<p>Pada setiap trafo mempunyai input yang dinamai gulungan primer dan output yang dinamai gulungan sekunder. Trafo mempunyai inti besi untuk frekuensi rendah dan inti ferrit untuk frekuensi tinggi atau ada juga yang tidak mempunyai inti (intinya udara).<br \/>\n<a href=\"https:\/\/www.tneutron.net\/elektro\/wp-content\/uploads\/sites\/2\/2017\/03\/image-17.png\"><img loading=\"lazy\" decoding=\"async\" style=\"background-image: none; padding-top: 0px; padding-left: 0px; margin: 0px; display: inline; padding-right: 0px; border-width: 0px;\" title=\"image\" src=\"https:\/\/www.tneutron.net\/elektro\/wp-content\/uploads\/sites\/2\/2017\/03\/image_thumb-17.png\" alt=\"image\" width=\"248\" height=\"198\" border=\"0\" \/><\/a><\/p>\n<p>Bagan Trafo yang dilalui Arus Listrik Bila pada lilitan primer diberi arus bolak-balik (AC), maka gulungan primer akan menjadi magnit yang arah medan magnitnya juga bolak-balik. Medan magnit ini akan menginduksi gulungan sekunder dan mengakibatkan pada gulungan sekunder mengalir arus bolak-balik (AC). Dimisalkan pada gulungan primer mengalir arus berfasa positip (+), maka pada gulungan sekundernya mengalir arus berfasa negatip (-).<\/p>\n<p>Karena arus yang mengalir digulungan primer bolak-balik, maka pada gulungan sekunderpun mengalir arus bolak-balik. Besarnya daya pada lilitan primer sama dengan daya yang diberikan pada lilitan sekunder.<br \/>\n<strong>Jadi, <\/strong><br \/>\n<strong>Pp = Ps atau Up.Ip = Us.Is<\/strong><br \/>\nDimana:<br \/>\nPp = Daya primer dalam watt<br \/>\nPs = Daya sekunder dalam watt<br \/>\nUp = Tegangan primer dalam volt<br \/>\nUs = Tegangan sekunder dalam volt<br \/>\nIp = Arus primer dalam amper<br \/>\nIs = Arus sekunder dalam amper<\/p>\n<p>Contoh: Sebuah trafo daya dihubungkan dengan tegangan jala-jala 220 V, arus yang mengalir pada lilitan primer 0,2 amper. Jika tegangan sekundernya 12 V. Hitunglah besarnya arus sekunder.<br \/>\nPenyelesaian: Up.Ip = Us.Is 220.0,2 = 12. Is Is = 44\/12 Is = 3,66 amper<\/p>\n<p><strong>Perbandingan Transformasi:<\/strong><br \/>\nPada umumnya jumlah lilitan primer tidak sama dengan jumlah lilitan sekunder. Untuk trafo stepup jumlah lilitan primer lebih sedikit dari jumlah lilitan sekunder, sebaliknya untuk trafo stepdown jumlah lilitan primer lebih banyak dari jumlah lilitan sekunder. Banyaknya lilitan primer dan banyaknya lilitan sekunder menunjukkan besarnya tegangan primer dan besarnya tegangan sekunder. Semakin besar tegangannya semakin banyak pula lilitannya.<\/p>\n<p>Jadi banyaknya lilitan berbanding lurus dengan besarnya tegangan dimasing-masing sisi. Jika lilitan sekunder= Ns dan lilitan primer = Np, maka perbandingan jumlah lilitan primer dan lilitan sekunder disebut perbandingan transformasi dan dinyatakan dengan T = Np\/Ns. Pada transformator berlaku persamaan: Up\/Us = Np\/Ns atau T = Up\/Us<\/p>\n<p>Contoh: Sebuah trafo daya tegangan primernya 220 V, tegangan sekundernya 30 V. Jumlah lilitan primernya 1100 lilit.<br \/>\nHitunglah banyaknya lilitan sekundernya.<br \/>\nPenyelesaian: Up\/Us = Np\/Ns 220\/30 = 1100\/Ns 7,33 = 1100\/Ns Ns = 1100\/7,33 Ns = 150.06 lilit<\/p>\n<p>Pada teknik elektronika dikenal bermacam-macam trafo, baik untuk frekuensi tinggi maupun frekuensi rendah. Contoh trafo untuk frekuensi tinggi yaitu trafo osilator, trafo frekuensi menengah (IF), trafo spull antena (tuner). Sedangkan trafo yang dipakai untuk frekuensi rendah yaitu trafo input, trafo output, trafo filter (choke).<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Transformator (trafo) ialah alat listrik\/elektronika yang berfungsi memindahkan tenaga (daya) listrik dari input ke output atau dari sisi primer ke sisi sekunder. Pemindahan daya listrik dari primer ke sekunder disertai dengan perubahan tegangan baik naik maupun turun. Ada dua jenis trafo yaitu trafo penaik tegangan (step up transformer) dan trafo penurun tegangan (step down transformer). &#8230;<\/p>\n","protected":false},"author":1,"featured_media":2640,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2414],"tags":[3192,3193,3186,3187,3189,3191,3195,3188,3190,3194],"class_list":["post-2641","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-rangkaian-listrik-dasar","tag-dasar-teori-percobaan-transformator","tag-dasar-teori-polaritas-transformator","tag-dasar-transformator","tag-dasar-transformator-pdf","tag-elektronika-dasar-transformator","tag-materi-dasar-transformator","tag-prinsip-dasar-transformator","tag-prinsip-dasar-transformator-pemisah","tag-teori-dasar-transformator-step-down","tag-transformator-dasar-teori"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Teori Dasar Transformator - TN Elektro<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.tneutron.net\/elektro\/teori-dasar-transformator\/\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"Teori Dasar Transformator - TN Elektro\" \/>\n<meta name=\"twitter:description\" content=\"Transformator (trafo) ialah alat listrik\/elektronika yang berfungsi memindahkan tenaga (daya) listrik dari input ke output atau dari sisi primer ke sisi sekunder. 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