{"id":2999,"date":"2023-04-16T03:38:15","date_gmt":"2023-04-15T20:38:15","guid":{"rendered":"https:\/\/www.tneutron.net\/elektro\/?p=2999"},"modified":"2023-04-12T07:47:35","modified_gmt":"2023-04-12T00:47:35","slug":"konfigurasi-wattmeter","status":"publish","type":"post","link":"https:\/\/www.tneutron.net\/elektro\/konfigurasi-wattmeter\/","title":{"rendered":"Konfigurasi Wattmeter"},"content":{"rendered":"

Wattmeter merupakan suatu alat ukur yang digunakan untuk mengetahui berapa besarnya daya listrik nyata pada beban yang sedang beroperasi dalam suatu sistem kelistrikan dengan beberapa kondisi beban, seperti beban DC, beban AC satu fasa serta beban AC tiga fasa. Dalam pengoperasiannya harus memperhatikan petunjuk yang ada pada manual book atau tabel yang tertera pada wattmeter. Demikian juga dalam hal pembacaannya harus mengacu pada manual book yang ada.<\/p>\n

Daya listrik dalam pengertiannya dapat dikelompokkan dalam dua kelompok sesuai dengan catu tenaga listriknya, yaitu daya listrik DC dan daya listrik AC.<\/p>\n

Daya listrik DC dirumuskan sebagai :<\/strong><\/p>\n

P = V . I<\/b>
\nDimana :
\nP = Daya (Watt),<\/p><\/blockquote>\n

Sedangkan Daya listrik AC terdapat dua macam yaitu: daya untuk satu fasa dan daya untuk tiga fasa, dimana dapat dirumuskan sebagai berikut :<\/p>\n

Pada sistem satu fasa :<\/strong><\/p>\n

P = V. I . cos \u03c6<\/b>
\nDimana :
\nV = Tegangan kerja (Volt),
\nI = Arus yang mengalir ke beban (Ampere)<\/p><\/blockquote>\n

Pada sistem tiga fasa :<\/b><\/p>\n

P = 3 .V. I . cos \u03c6<\/b>
\nDimana :<\/b>
\nV = Tegangan fasa netral (volt),<\/b>
\nI = Arus yang mengalir ke beban (Ampere)<\/b><\/p><\/blockquote>\n

Secara umum daya listrik mengandung unsur resistansi dan reaktansi atau impedansi kompleks sehingga daya yang diserap tergantung pada sifat beban. Hal tersebut dikarenakan yang menyerap daya adalah beban yang bersifat resistif, sedang beban yang bersifat reaktif tidak menyerap daya. Dengan demikian perkalian antara tegangan efektif dengan arus efektif adalah merupakan daya semu (S).
\nS = V.I<\/b><\/p>\n

Sedangkan besarnya daya nyata (P) adalah :
\nP = V . I . Cos <\/b>\"clip_image005\"<\/a><\/p>\n

Juga daya yang disebabkan oleh beban reaktif (Q), besarnya adalah :
\nQ = V . I . Sin <\/b>\"clip_image005[1]\"<\/a><\/p>\n

Hubungan antara ketiga daya nyata, daya semu dan daya reaktif dapat dilukiskan dengan segitiga daya berikut :
\n\"clip_image002[6]\"<\/a>
\nGambar 45. Segitiga Daya<\/p>\n

Perhatikan dan amati !<\/i><\/b>
\nDibawah ini diperlihatkan gambar wattmeter analog berikut konstruksi rangkaian dasarnya.
\n\"clip_image006\"<\/a>
\nGambar 46. Watt-meter<\/p>\n

Pada rangkaian dasar Wattmeter, kumparan arus dari Wattmeter dihubungkan secara seri dengan rangkaian (beban), dan kumparan tegangan dihubungkan parallel dengan line. Jika arus line mengalir melewati kumparan arus dari Wattmeter, maka akan membangkitkan medan di sekitar kumparan. Kuat medan ini sebanding dengan besarnya arus line kumparan tegangan dari wattmeter yang dipasang seri dengan resisitor dengan nilai resistansi sangat tinggi. Tujuannya adalah untuk membuat rangkaian kumparan tegangan dari meter mempunyai ketelitian tinggi. Jika tegangan dipasangkan ke kumparan tegangan, arus akan sebanding dengan tegangan line.<\/p>\n","protected":false},"excerpt":{"rendered":"

Wattmeter merupakan suatu alat ukur yang digunakan untuk mengetahui berapa besarnya daya listrik nyata pada beban yang sedang beroperasi dalam<\/p>\n","protected":false},"author":1,"featured_media":2998,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","footnotes":""},"categories":[2243],"tags":[3836,3837,3838,3839,3840,3841,3842,3843,3844,3845,3846,3847,3848,3849],"class_list":["post-2999","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-peralatan-ukur-listrik","tag-alat-ukur-listrik-wattmeter","tag-alat-ukur-watt-meter-dipasang-secara","tag-alat-ukur-wattmeter","tag-alat-ukur-wattmeter-digital","tag-alat-ukur-wattmeter-dipasang-secara","tag-alat-wattmeter","tag-cara-kerja-alat-ukur-wattmeter","tag-cara-pemasangan-alat-ukur-wattmeter","tag-fungsi-alat-ukur-wattmeter","tag-pemasangan-alat-ukur-watt-meter","tag-penemu-alat-watt-meter","tag-pengertian-alat-ukur-watt-meter","tag-prinsip-kerja-alat-ukur-wattmeter","tag-simbol-alat-ukur-wattmeter"],"yoast_head":"\nKonfigurasi Wattmeter - 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