{"id":314,"date":"2026-10-04T06:16:14","date_gmt":"2026-10-04T06:16:14","guid":{"rendered":"https:\/\/otomasiplcbandung.com\/?p=314"},"modified":"2026-10-05T06:38:27","modified_gmt":"2026-10-05T06:38:27","slug":"skema-rangkaian-star-delta-iii","status":"publish","type":"post","link":"https:\/\/otomasiplcbandung.com\/?p=314","title":{"rendered":"SKEMA RANGKAIAN STAR DELTA III"},"content":{"rendered":"\n

<\/p>\n\n\n\n

PANDUAN ALUR KABEL: Dari Sumber Listrik 3-Phase Hingga ke Motor<\/strong><\/h2>\n\n\n\n

Mari kita telusuri aliran arus listriknya langkah demi langkah secara berurutan:<\/p>\n\n\n\n

1. Jalur Utama: Sumber Listrik \u2794 MCB 3-Phase<\/strong><\/h2>\n\n\n\n
    \n
  • Kabel Masuk:<\/strong> Tiga kabel fasa utama dari PLN\/Genset (diwakili kode warna standar R – S – T<\/strong> atau L1 – L2 – L3<\/strong>) dimasukkan ke terminal bagian atas MCB\/MCCB 3-Phase<\/strong>.<\/li>\n\n\n\n
  • Fungsi:<\/strong> MCB ini berdiri di gardu depan sebagai benteng pertahanan utama jika terjadi korsleting besar di seluruh rangkaian.<\/li>\n<\/ul>\n\n\n\n

    2. Pembagian Daya: Dari MCB \u2794 Kontaktor Utama (Main) & Kontaktor Delta<\/strong><\/h2>\n\n\n\n
      \n
    • Dari terminal bawah MCB 3-Phase, kabel fasa R-S-T dijumper (dibagi dua jalur):\n
        \n
      • Jalur A:<\/strong> Masuk ke terminal input atas (1 – 3 – 5 atau L1 – L2 – L3) milik Kontaktor Utama (K1)<\/strong>.<\/li>\n\n\n\n
      • Jalur B:<\/strong> Masuk ke terminal input atas (1 – 3 – 5) milik Kontaktor Delta (K3)<\/strong>.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n

        3. Pengaman Motor: Dari Kontaktor Utama \u2794 Thermal Overload Relay (TOR)<\/strong><\/h2>\n\n\n\n
          \n
        • Kabel tidak langsung ke motor, melainkan terminal bawah Kontaktor Utama (2 – 4 – 6) ditancapkan langsung ke terminal input TOR (Thermal Overload Relay)<\/strong>.<\/li>\n\n\n\n
        • Fungsi:<\/strong> TOR bertugas merasakan panas. Jika motor macet atau beban terlalu berat, lempengan bimetal di dalam TOR akan melengkung dan memerintahkan sistem kontrol untuk mati.<\/li>\n<\/ul>\n\n\n\n

          4. Menuju Motor (Sisi Depan): Dari TOR \u2794 Terminal Motor (U1, V1, W1)<\/strong><\/h2>\n\n\n\n
            \n
          • Dari terminal output bawah TOR, tiga kabel fasa keluar menuju ke terminal box motor 3-Phase dan dipasang pada baut terminal U1, V1, dan W1<\/strong>.<\/li>\n<\/ul>\n\n\n\n

            5. Menuju Motor (Sisi Belakang\/Loop): Dari Kontaktor Delta & Star \u2794 Terminal Motor (U2, V2, W2)<\/strong><\/h2>\n\n\n\n
              \n
            • Di sinilah kunci keajaiban Star-Delta terjadi. Terminal bawah Kontaktor Delta (K3)<\/strong> dihubungkan secara paralel dengan terminal bawah Kontaktor Star (K2)<\/strong>.<\/li>\n\n\n\n
            • Dari gabungan terminal bawah ini, tiga kabel keluar menuju ke terminal box motor bagian bawah dan dipasang pada baut U2, V2, dan W2<\/strong>.<\/li>\n\n\n\n
            • Saat Hubungan Star Aktif:<\/strong> Terminal atas Kontaktor Star (K2) sengaja dijumper mati (disatukan dengan satu kabel pendek). Ketika K2 hidup, ujung U2-V2-W2 otomatis terhubung singkat membentuk bintang (motor mendapat tegangan kecil).<\/li>\n\n\n\n
            • Saat Hubungan Delta Aktif:<\/strong> Kontaktor Star (K2) mati, lalu Timer<\/strong> menghidupkan Kontaktor Delta (K3). Tegangan penuh 380V langsung mengalir silang ke belitan motor melalui jalur Delta.<\/li>\n<\/ul>\n\n\n\n
              \n\n\n\n
              \n

              “Ingat! Sistem di atas diatur oleh Timer Elektronik<\/strong> di rangkaian kontrol. Timer memastikan Kontaktor Star (K2) harus lepas dahulu, barulah Kontaktor Delta (K3) boleh masuk. Keduanya tidak boleh hidup bersamaan<\/strong> meskipun hanya 0,1 detik, atau listrik pabrik akan meledak akibat hubungan singkat fasa-ke-fasa!”<\/em><\/p>\n<\/blockquote>\n\n\n\n

              \n\n\n\n

              <\/p>\n","protected":false},"excerpt":{"rendered":"

              PANDUAN ALUR KABEL: Dari Sumber Listrik 3-Phase Hingga ke Motor Mari kita telusuri aliran arus listriknya langkah demi langkah secara […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[4],"tags":[],"class_list":["post-314","post","type-post","status-publish","format-standard","hentry","category-deskripsi-kategori-logika-dasar-otomasi-selamat-da"],"_links":{"self":[{"href":"https:\/\/otomasiplcbandung.com\/index.php?rest_route=\/wp\/v2\/posts\/314","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/otomasiplcbandung.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/otomasiplcbandung.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/otomasiplcbandung.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/otomasiplcbandung.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=314"}],"version-history":[{"count":1,"href":"https:\/\/otomasiplcbandung.com\/index.php?rest_route=\/wp\/v2\/posts\/314\/revisions"}],"predecessor-version":[{"id":321,"href":"https:\/\/otomasiplcbandung.com\/index.php?rest_route=\/wp\/v2\/posts\/314\/revisions\/321"}],"wp:attachment":[{"href":"https:\/\/otomasiplcbandung.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=314"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/otomasiplcbandung.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=314"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/otomasiplcbandung.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=314"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}