Tinjauan Teoritis pada Pelaksanaan Prosedur Konstruksi Sistem Pembumian Model Grid di Gardu Induk

Abstract

Graphical abstract mulai <langkah ke-1> Data Lapangan: Aground ; rground <langkah ke-2> Ukuran Konduktor: 3I0 ; ttrouble ; d <langkah ke-3> Tegangan Sentuh dan Langkah: Etouch60 ; Estep60 <langkah ke-4> Parameter Konduktor: D ; N ; Ltot. ; H <langkah ke-5> Data Resistans Grid: Rground ; Lcond. ; lrod <langkah ke-11> Perubahan Parameter Konduktor: D ; N ; Ltot. A B C D <langkah ke-7> Apakah: I . Rground < Etouch? <langkah ke-9> Apakah: Emesh < Etouch? <langkah ke-8> Penggunaan Sejumlah Persamaan Bersesuaian, kemudian dihitung: Emesh ; Estep ; Kmesh ; Kstep ; Ki ; Kii ; Kh <langkah ke-10> Apakah: Estep < Etouch? <langkah ke-12> Hasil Proses Prosedur Pelaksanaan selesai ya ya ya tidak tidak tidak A B C <langkah ke-6> Penggunaan Sejumlah Persamaan Bersesuaian, kemudian dihitung: Igrid, maks. ; tf D Abstract A theoretical review into implementation of construction procedure for the grounding grid system at substation has been done. The construction procedure based on a number of International standards, through a number of objectives in the form of (a) determination of conductor and connection selection; (b) determination of soil conditions; (c) calculating the value of earth resistance in the ground system; (d) maximum grid current calculation; and (e) calculation of mesh voltages and steps, and (f) flow chart of construction implementation procedures. The selection of conductors and connections, including (i) material and the size of the conductor and (ii) the connections. Determination of soil conditions, including structure, resistivity, and soil model. Calculation of the earth resistance value in the grounding grid system is based on the number of layers soil and soil uniformity. Maximum grid current calculation, including (i) determination of the location and type of worst disturbance, (ii) calculation of the noise current dividing factor, (iii) the calculation of the descending factor, (iv) the determination of the projection correction factor. Mesh and step voltage calculations include (i) mesh voltage and (ii) step voltage, (iii) limits for mesh and step voltage, and (iv) minimum length of embedded conductor. The flowchart of the implementation of construction procedure for the grounding grids system at substation is a sequence of criteria that must be met for the acquisition of an efficient security system, but safe for humans according to IEEE standards Abstrak Telah dilakukan tinjauan teoritis pelaksanaan untuk perolehan prosedur konstruksi terhadap sistem pembumian model grid di gardu induk. Prosedur konstruksi didasarkan kepada sejumlah standar Internasional, melalui sejumlah tujuan berupa (a) penetapan pemilihan konduktor dan sambungan; (b) penentuan kondisi tanah; (c) perhitungan nilai resistans bumi pada sistem pembumian; (d) perhitungan arus grid maksimum; dan (e) perhitungan tegangan mesh dan langkah, dan (f) diagram alir prosedur pelaksanaan konstruksi. Pemilihan konduktor dan sambungan, meliputi (i) material dan ukuran konduktor dan (ii) sambungan. Penentuan kondisi tanah, meliputi struktur, resis...