{"id":25,"date":"2021-07-24T07:14:00","date_gmt":"2021-07-24T07:14:00","guid":{"rendered":"http:\/\/wiraelectrical.com\/id\/2020\/01\/19\/hukum-kirchhoff-rangkaian-ac\/"},"modified":"2025-01-29T05:20:30","modified_gmt":"2025-01-29T05:20:30","slug":"hukum-kirchhoff-rangkaian-ac","status":"publish","type":"post","link":"https:\/\/wiraelectrical.com\/id\/hukum-kirchhoff-rangkaian-ac\/","title":{"rendered":"Hukum Kirchhoff Rangkaian AC"},"content":{"rendered":"\n

Hukum Kirchhoff dapat digunakan pula untuk analisa rangkaian listrik ac. Dengan dasar KVL dan KCL dari rangkaian dc, kita dapat memodifikasinya untuk dapat digunakan untuk rangkaian listrik sinusoidal.<\/p>\n

Kita tidak dapat melakukan analisa rangkaian pada domain frekuensi tanpa Hukum Kirchhoff Arus dan Tegangan. Jadi, kita perlu menyatakannya pada domain frekuensi.<\/p>\n

Untuk KVL, kita gunakan\u00a0v1<\/sub><\/i>,\u00a0v2<\/sub><\/i>, …,\u00a0vn<\/sub><\/i>\u00a0untuk mewakili tegangan di loop tertutup. Sehingga<\/p>\n

\u00a0<\/p>\n\n\n\n\n
\"Hukum<\/a><\/td>\n<\/tr>\n
(1)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Pada steady state sinusoidal, tiap tegangan dapat ditulis dalam bentuk cosinus, sehingga Persamaan.(1) menjadi<\/p>\n\n\n\n\n
\"Hukum<\/a><\/td>\n<\/tr>\n
(2)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Hal ini dapat ditulis menjadi<\/p>\n\n\n\n\n
\"Hukum<\/a><\/td>\n<\/tr>\n
(3)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Jika kita gunakan\u00a0V<\/b>k<\/sub><\/i>\u00a0=\u00a0Vmk<\/sub><\/i>ej\u03b8k<\/sup>, sehingga<\/p>\n\n\n\n\n
\"Hukum<\/a><\/td>\n<\/tr>\n
(4)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Karena ej\u03c9t<\/sup>\u00a0\u2260 0,<\/p>\n\n\n\n\n
\"Hukum<\/a><\/td>\n<\/tr>\n
(5)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

menunjukkan bahwa Hukum Kirchhoff Tegangan berlaku untuk fasor.<\/p>\n

Dengan menggunakan prosedur yang sama, kita dapat menunjukkan Hukum Kirchhoff Arus berlaku untuk fasor. Jika kita menggunakan\u00a0i1<\/sub><\/i>,\u00a0i2<\/sub><\/i>, …,in<\/sub><\/i>\u00a0untuk mewakili arus yang meninggalkan atau memasuki suatu jaringan pada waktu t<\/i>, maka<\/p>\n\n\n\n\n
\"Hukum<\/a><\/td>\n<\/tr>\n
(6)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Jika\u00a0I<\/b>1<\/sub><\/i>,\u00a0<\/span>I<\/b>2<\/sub><\/i>, ….,\u00a0<\/span>I<\/b>n<\/sub><\/i>\u00a0adalah bentuk fasor untuk sinusoidal\u00a0<\/span>i1<\/sub><\/i>,\u00a0<\/span>i2<\/sub><\/i>, …,<\/span>in<\/sub><\/i>, maka<\/span><\/p>\n\n\n\n\n
\"Hukum<\/a><\/td>\n<\/tr>\n
(7)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

yang merupakan Hukum Kirchhoff Arus di domain frekuensi<\/a>.<\/span><\/p>\n

Ketika kita dapat menyatakan KVL dan KCL di domain frekuensi, akan menjadi mudah untuk mencari banyak hal, seperti kombinasi impedansi, analisa mesh dan nodal, superposisi, dan transformasi sumber.<\/div>\n
\u00a0<\/div>\n
For English read\u00a0Kirchhoff’s Laws for AC Circuit<\/a><\/div>\n\n\n\n

Baca juga : teorema superposisi rangkaian AC<\/a><\/p>\n\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[51],"tags":[],"class_list":["post-25","post","type-post","status-publish","format-standard","hentry","category-analisa-rangkaian-listrik"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/wiraelectrical.com\/id\/wp-json\/wp\/v2\/posts\/25","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wiraelectrical.com\/id\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wiraelectrical.com\/id\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wiraelectrical.com\/id\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wiraelectrical.com\/id\/wp-json\/wp\/v2\/comments?post=25"}],"version-history":[{"count":3,"href":"https:\/\/wiraelectrical.com\/id\/wp-json\/wp\/v2\/posts\/25\/revisions"}],"predecessor-version":[{"id":2023,"href":"https:\/\/wiraelectrical.com\/id\/wp-json\/wp\/v2\/posts\/25\/revisions\/2023"}],"wp:attachment":[{"href":"https:\/\/wiraelectrical.com\/id\/wp-json\/wp\/v2\/media?parent=25"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wiraelectrical.com\/id\/wp-json\/wp\/v2\/categories?post=25"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wiraelectrical.com\/id\/wp-json\/wp\/v2\/tags?post=25"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}