Transformer (Transformer) adalah perangkat yang menggunakan prinsip induksi elektromagnetik untuk mengubah tegangan AC, komponen utamanya adalah kumparan primer, kumparan sekunder dan inti besi (magnetic core). Fungsi utama adalah: transformasi tegangan, transformasi arus, transformasi impedansi, isolasi, stabilisasi tegangan (transformator saturasi magnetik), dll. Dapat dibagi menjadi transformator daya dan transformator khusus (transformator tungku listrik, transformator rectifier, transformator uji frekuensi daya, tegangan regulator, transformator pertambangan, transformator audio, transformator frekuensi menengah, transformator frekuensi tinggi, transformator dampak, transformator instrumen, transformator elektronik), Reaktor, transformator, dll.). Simbol sirkuit sering menggunakan T sebagai awal angka. Contoh: T01, T201, dll.
Keluaran reaktor: ketika panjang keluaran kabel dari inverter ke motor lebih besar dari nilai produk yang ditentukan, sebuah reaktor keluaran harus ditambahkan untuk mengkompensasi dampak dari pengisian dan pengosongan kapasitansi listrik yang digabungkan ketika listrik kabel sedang berjalan, untuk menghindari aliran inverter. Keluaran dv / dt reaktor: Untuk membatasi laju kenaikan tegangan keluaran dari inverter untuk memastikan insulasi motor normal. Filter gelombang Sinusoid: Buat tegangan output dan arus inverter mendekati gelombang sinus, kurangi koefisien domain harmonik motor dan tekanan isolasi motor. Opsi-opsi ini harus dipasang di sisi output inverter.
Berikut ini adalah model produk dan pengenalannya ：
3RT2015-1BB41。4AM2342-4TN00-0EA1, 4AM2342-4TT10-0FA0。4AM2342-4TN00-0EB0。4AM2342-4TN00-0EA0。4AM2342-5AJ10-0FB0。4AM2342-5AT10-0FB0。4AM2342-5AT10-0FA0。4AM2342-5AN00-0EB0。4AM2342-5AN00-0EA0。4AM2642-4TT10-0FA0。4AM2642-4TN00-0EB0。4AM2642-4TN00-0EA0。4AM2642-5AJ10-0FB0。4AM2642-5AT10-0FA0。4AM2642-5AN00-0EB0。4AM2642-5AN00-0EA0。4AM3242-4TT10-0FD0。4AM3242-4TN00-0ED0。4AM3242-5AN00-0ED0。4AM3242-8JN00-0ED0。4AM3242-8DD40-0FD0。4AM3242-4TN00-0EC0。4AM3242-4TV00-0EC0。4AM3242-5AT10-0FC0。4AM3242-4TJ10-0FA0。4AM3242-4TT10-0FA0。4AM3242-4TT10-0FA1。4AM3242-4TN00-0EA0。4AM3242-4TV00-0EA0。4AM3242-5AJ10-0FA0。4AM3242-5AT10-0FA1。4AM3242-5AT10-0FA0。4AM3242-5AN00-0EA1。4AM3242-5AN00-0EA0。4AM3242-5AV00-0EA0。4AM3242-8JN00-0EA0。4AM3242-8JD40-0FA0。4AM3242-5CJ10-0FA0。4AM3242-5CT10-0FA0。4AM3242-5CN00-0EA0。4AM3242-5FT10-0FA0。4AM3242-8DN00-0EA0。4AM3242-8DD40-0FA0。4AM3242-8EN00-0EA0。4AM3242-8ED40-0FA0。4AM3242-5LT10-0FA0。4AM3242-5MT10-0FA0。4AM3242-5AT10-0FA2。4AM3442-4TN00-0ED0。4AM3442-5AT10-0FD0。4AM3442-8DD40-0FD0。4AM3442-4TN00-0EC0。4AM3442-5AT10-0FC0。4AM3442-5AN00-0EC0。4AM3442-4TJ10-0FA0。4AM3442-4TT10-0FA0。4AM3442-4TN00-0EA1。4AM3442-4TN00-0EA0。4AM3442-4TV00-0EA0。4AM3442-5AJ10-0FA0。4AM3442-5AT10-0FA1。4AM3442-5AT10-0FA0。4AM3442-5AD40-0FA0。4AM3442-5AN00-0EA1。4AM3442-5AN00-0EA0。4AM3442-5AV00-0EA0。4AM3442-8JN00-0EA0。4AM3442-8JD40-0FA0。4AM3442-5CJ10-0FA0。4AM3442-5CT10-0FA0。4AM3442-5CT10-0FA1。4AM3442-5CN00-0EA0。4AM3442-5FJ10-0FA0。4AM3442-5FT10-0FA0。4AM3442-5FN00-0EA0。4AM3442-8DN00-0EA0。4AM3442-8DD40-0FA0。4AM3442-8DV00-0EA0。4AM3442-8EN00-0EA0。4AM3442-8ED40-0FA0。4AM3442-5LT10-0FA0。4AM3442-5MT10-0FA0。4AM3842-4TN00-0ED0。4AM3842-4TV00-0ED0。4AM3842-5AT10-0FD0。4AM3842-4TJ10-0FC0。4AM3842-4TT10-0FC0。4AM3842-4TN00-0EC0。4AM3842-8DD40-0FC0。4AM3842-4TJ10-0FA0。4AM3842-4TT10-0FA0。4AM3842-4TN00-0EA1。4AM3842-4TN00-0EA0。4AM3842-4TV00-0EA0。4AM3842-5AJ10-0FA0。4AM3842-5AT10-0FA2。4AM3842-5AT10-0FA1。4AM3842-5AT10-0FA0。4AM3842-5AN00-0EA1。4AM3842-5AN00-0EA0。4AM3842-5AV00-0EA0。4AM3842-8JD40-1FA1。4AM3842-8JN00-0EA0。4AM3842-8JD40-0FA1。4AM3842-8JD40-0FA0。4AM3842-5CJ10-0FA0。4AM3842-5CT10-0FA0。4AM3842-5FT10-0FA1。4AM3842-5FT10-0FA0。4AM3842-5FN00-0EA0。4AM3842-8DN00-0EA0。4AM3842-8DD40-0FA0。4AM3842-8DV00-0EA0。4AM3842-8EN00-0EA0。4AM3842-8ED40-0FA0。4AM3842-5MT10-0FA0。4AM4042-4TJ10-0FD0。4AM4042-4TT10-0FD0。4AM4042-4TN00-0ED0。4AM4042-5AT10-0FD0。4AM4042-5AN00-0ED0。4AM4042-8JN00-0ED0。4AM4042-8DD40-0FD0。4AM4042-4TT10-0FC0。4AM4042-5AT10-0FC0。4AM4042-5MT10-0FC0。4AM4342-4TN00-0ED0。4AM4042-4TJ10-0FA0。4AM4042-4TT10-0FA0。4AM4042-4TN00-0EA1。4AM4042-4TN00-0EA0。4AM4042-4TV00-0EA0。4AM4042-5AJ10-0FA0。4AM4042-5AT10-0FA1。4AM4042-5AT10-0FA0。4AM4042-5AN00-0EA1。4AM4042-5AN00-0EA0。4AM4042-5AV00-0EA0。4AM4042-8JN00-0EA0。4AM4042-8JD40-0FA0。4AM4042-5CJ10-0FA0。4AM4042-5CT10-0FA0。4AM4042-5CD40-0FA0。4AM4042-5FJ10-0FA0。4AM4042-5FT10-0FA0。4AM4042-8DN00-0EA0。4AM4042-8DD40-0FA0。4AM4042-8DV00-0EA0。4AM4042-8EN00-0EA0。4AM4042-8ED40-0FA0。4AM4042-8EV00-0EA0。4AM4042-5LT10-0FA0。4AM4042-5MT10-0FA0。4AM4342-4TJ10-0FC0。4AM4342-4TN00-0EC0。4AM4342-5AT10-0FC0。4AM4642-5AT10-0FD0。4AM4642-5AN00-0ED0。4AM4342-4TJ10-0FA0。4AM4342-4TT10-0FB0。4AM4342-4TT10-0FA0。4AM4342-4TN00-0EB0。4AM4342-4TN00-0EA0。4AM4342-4TV00-0EA0。4AM4342-5AJ10-0FA0。4AM4342-5AT10-0FA1。4AM4342-5AT10-0FB0。4AM4342-5AT10-0FA0。4AM4342-5AN00-0EA1。4AM4342-5AN00-0EB0。4AM4342-5AN00-0EA0。4AM4342-5AV00-0EA0。4AM4342-8JD40-0FA0。4AM4342-8JN00-0EA0。4AM4342-5CJ10-0FA0。4AM4342-5CT10-0FA0。4AM4342-5FJ10-0FA0。4AM4342-5FT10-0FA0。4AM4342-5FT10-0FB0。4AM4342-8DN00-0EB0。4AM4342-8DN00-0EA0。4AM4342-8DD40-0FB0。
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4NC5112-0BC20；4NC5112-0CB21；4NC5112-2BC20；4NC5112-2CB21；4NC5113-0BC20；4NC5113-0CB21；4NC5113-2BC20；4NC5113-2CB21；4NC5115-0CC21；4NC5115-2CC21；4NC5117-0CC21；4NC5117-0DA21；4NC5117-2CC21；4NC5117-2DA21；4NC5121-0CC21；4NC5121-0DC21；4NC5121-2CC21；4NC5121-2DC21；4NC5121-2FA21；4NC5122-0CE21；4NC5122-0DE21；4NC5122-2CE21；4NC5122-2DE21；4NC5122-2FC21；4NC5123-0CE20；4NC5123-0CE21；4NC5123-0DE21；4NC5123-2CE20；4NC5123-2CE21；4NC5123-2DE21；4NC5123-2FC21；4NC5124-2FE21；4NC5125-2FE21；4NC5126-2FE21；4NC5222-0CE21；4NC5222-0DE21；4NC5222-2CE21；4NC5222-2DE21；4NC5223-0CE21；4NC5223-0DE21；4NC5223-2CE21；4NC5223-2DE21；4NC5224-0CE20；4NC5224-0CE21；4NC5224-0DE21；4NC5224-2CE20；4NC5224-2CE21；4NC5224-2DE21；4NC5225-0CE21；4NC5225-0DE21；4NC5225-2CE21；4NC5225-2DE21；4NC5227-2FE21；4NC5228-2FE21；4NC5231-2FE21；4NC5232-2FE21；4NC5325-0CE20；4NC5325-0CE21；4NC5325-0DE21；4NC5325-2CE20；4NC5325-2CE21；4NC5325-2DE21；4NC5326-0CE21；4NC5326-0DE21；4NC5326-2CE21；4NC5326-2DE21；4NC5327-0CE21；4NC5327-0DE21；4NC5327-2CE21；4NC5327-2DE21；4NC5328-2CE20；4NC5330-0CE21；4NC5330-0DE21；4NC5330-2CE21；4NC5330-2DE21；4NC5331-2DE21；4NC5431-0CH20；4NC5431-0CH21；4NC5431-0DH21；4NC5431-2CH21；4NC5431-2DH21；4NC5432-0CH21；4NC5432-0DH21；4NC5432-2CH21；4NC5432-2DH21；4NC5433-0CH20；4NC5433-0DH21；4NC5433-2CH20；4NC5433-2DH21；4NC5434-0CH21；4NC5434-2CH20；4NC5434-2CH21；4NC5435-0CH21；4NC5435-0DH21；4NC5435-2CH21；4NC5435-2DH21；4NC5436-2DK21；4NC5438-0CJ21；4NC5438-2CJ21；4NC5438-2DL21；4NC5440-0CJ21；4NC5440-2CJ21；4NC5440-2DM21；4NC5441-2CN21；4NC5441-2DN21；4NC5923-5LT21；4NC5925-5LT21；4NC5930-5LT21；4NC5940-5LT21；
7KT1223；7KT1222；7KT1260；7KT1542；7KT1548；7KT9030；7KT1546；7KT1545；7KT1543；7KT1540；7KT1242；7KT1238；7KT1900；7KT1664；7KT1666；7KT1533；7KT1668；7KT1236；7KT1662；7KT1682；7KT1531；7KT1673；7KT1233；7KT1671；7KT1665；7KT1907；7KT1667；7KT1530；7KT1908；7KT1661；7KT1663；7KT1681；7KT1672；7KT1670；7KT1652；7KT1654；7KT1656；7KT1110；7KT1120；7KT1200；7KT1651；7KT1653；7KT1655；7KT1202；7KT1201；7KT5600；7KT5823；7KT5833；7KT5822；7KT5821；7KT5801；7KT1255；7KT5500；7KT1254；7KT9010；7KT9011；7KT5812；7KT5814；7KT5811；7KT5601；7KT5602；7KT5603；7KT5604；7KT5802；7KT5803；7KT5804；7KT5806；7KT5807；7KT5505；7KT5501；7KT5502；7KT5503；7KT5504；7KT9000；7KT9021；7KT9020；
Prinsip bekerja:
Trafo terdiri dari inti besi (atau inti magnetik) dan koil. Koil memiliki dua belitan atau lebih. Gulungan yang terhubung ke catu daya disebut kumparan primer, dan belitan yang tersisa disebut kumparan sekunder. Itu dapat mengubah tegangan AC, arus dan impedansi. Transformator inti besi yang paling sederhana terdiri dari inti besi yang terbuat dari bahan magnetik lunak dan dua kumparan dengan belokan berbeda yang menutupi inti besi.
Peran inti adalah untuk memperkuat kopling magnetik antara dua kumparan. Untuk mengurangi arus eddy dan hilangnya histeresis pada besi, intinya terbuat dari lembaran baja silikon berlapis; tidak ada hubungan listrik antara kedua kumparan, dan kumparan terbuat dari kabel tembaga terisolasi (atau kabel aluminium). Satu kumparan yang terhubung ke sumber daya AC disebut kumparan primer (atau kumparan primer), dan kumparan lain yang terhubung ke alat listrik disebut kumparan sekunder (atau kumparan sekunder). Trafo aktual sangat rumit, dan mau tidak mau ada kehilangan tembaga (pemanasan resistansi kumparan), kehilangan besi (pemanasan inti besi) dan kebocoran magnetik (kawat induksi magnetik tertutup oleh udara), dll. Untuk mempermudah diskusi, hanya transformator ideal diperkenalkan di sini. Kondisi untuk transformator ideal yang akan didirikan adalah: abaikan fluks kebocoran, abaikan resistansi dari kumparan primer dan sekunder, abaikan kehilangan inti, dan abaikan arus tanpa-beban (arus dalam kumparan primer sekunder) koil terbuka). Sebagai contoh, ketika transformator daya sedang berjalan pada beban penuh (kumparan sekunder output nilai daya), itu dekat dengan transformator ideal.
Transformer adalah peralatan listrik statis yang dibuat menggunakan prinsip induksi elektromagnetik. Ketika kumparan asli transformator terhubung ke catu daya AC, fluks magnet bolak-balik dihasilkan dalam inti besi, yang umumnya ditunjukkan oleh φ. Φ dalam gulungan primer dan sekunder adalah sama, dan φ juga merupakan fungsi harmonik sederhana. Tabelnya adalah φ = φmsinωt. Menurut hukum Faraday tentang induksi elektromagnetik, gaya gerak listrik induksi pada kumparan primer dan sekunder adalah e1 = -N1dφ / dt dan e2 = -N2dφ / dt. Dalam rumus, N1 dan N2 adalah belitan dari gulungan primer dan sekunder. Dapat dilihat bahwa U1 = -e1 dan U2 = e2 (kuantitas fisik dari kumparan asli diwakili oleh subskrip 1 dan jumlah fisik dari kumparan sekunder diwakili oleh subskrip 2). = N1 / N2, disebut rasio transformasi transformator. Dari rumus di atas, U1 / U2 = -N1 / N2 = -k, yaitu, rasio nilai efektif tegangan primer dan sekunder kumparan transformator sama dengan rasio belokannya dan perbedaan fase antara kumparan primer dan sekunder tegangannya π.
Lebih lanjut disimpulkan bahwa:
U1 / U2 = N1 / N2
Dalam kasus di mana arus tanpa-beban dapat diabaikan, ada I1 / I2 = -N2 / N1, yaitu, nilai efektif arus koil primer dan sekunder berbanding terbalik dengan jumlah belokan dan perbedaan fasa adalah π.
Pada gilirannya tersedia
I1 / I2 = N2 / N1
Kekuatan kumparan primer dan sekunder dari transformator ideal adalah sama dengan P1 = P2. Ini menunjukkan bahwa transformator ideal itu sendiri tidak memiliki kehilangan daya. Transformator aktual selalu mengalami kerugian, dan efisiensinya adalah η = P2 / P1. Efisiensi transformator daya sangat tinggi, hingga lebih dari 90%
Parameter Karakteristik:
frekuensi kerja
Kehilangan inti transformator memiliki hubungan yang baik dengan frekuensi, sehingga harus dirancang dan digunakan sesuai dengan frekuensi penggunaan. Frekuensi ini disebut frekuensi operasi.
nilai daya
Di bawah frekuensi dan tegangan yang ditentukan, transformator dapat bekerja untuk waktu yang lama tanpa melebihi daya output dari kenaikan suhu yang ditentukan.
Nilai tegangan
Mengacu pada tegangan yang diizinkan diterapkan pada koil transformator, yang tidak boleh lebih besar dari nilai yang ditentukan selama operasi.
Rasio tegangan
Mengacu pada rasio tegangan primer transformator dan tegangan sekunder, ada perbedaan antara rasio tegangan tanpa beban dan rasio tegangan beban.
Arus tanpa beban
Ketika sekunder dari transformator terbuka, primer masih memiliki arus tertentu. Bagian dari arus ini disebut arus tanpa beban. Arus tanpa-beban terdiri dari arus magnetisasi (menghasilkan fluks magnet) dan arus rugi-rugi besi (disebabkan oleh kehilangan inti). Untuk transformator daya 50Hz, arus tanpa beban pada dasarnya sama dengan arus magnetisasi.
Kehilangan beban
Mengacu pada kehilangan daya yang diukur pada primer saat transformator sekunder terbuka. Kehilangan utama adalah kehilangan inti, diikuti oleh kehilangan arus tanpa beban (kehilangan tembaga) pada resistansi primer koil tembaga, bagian kerugian ini sangat kecil.
efektivitas
Mengacu pada persentase rasio daya sekunder P2 terhadap daya primer P1. Secara umum, semakin besar daya pengenal transformator, semakin tinggi efisiensinya.
resistansi isolasi
Ini menunjukkan kinerja isolasi antara setiap kumparan transformator dan antara setiap kumparan dan inti besi. Tingkat resistensi isolasi terkait dengan kinerja bahan isolasi yang digunakan, tingkat suhu dan tingkat kelembaban.
