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Budi Santoso
Sekolah Tinggi Teknik PLN
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ANALISIS PENGARUH KABEL TANAH TERHADAP TRANSFER VOLTAGEDENGAN VARIASI LUAS PENAMPANG KABEL DAN JARAK GARDU Budi Santoso; Muchamad Nur Qosim; Husnul Khatimah Azhari
Sutet Vol 6 No 1 (2016): JURNAL ILMIAH SUTET
Publisher : Sekolah Tinggi Teknik - PLN

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1103.968 KB) | DOI: 10.33322/sutet.v6i1.592

Abstract

Connection between substations and distribution substations using ground cables often occurs due to mechanical, thermal, and over voltage faults or due to defective or damaged materials. The disturbance flow will flow on metal parts of the equipment and also flow in the ground around the substation. The purpose and benefits of this study was to analyze the differences in the impedance value of the cable sheath at the distribution substation to the value of the voltage change (transfer voltage) dipengaruh by land lines, using data cable PT Sucaco Tbk, cable type of three core types NA2XSEBY with cross-section 70 mm2, 150 mm2, 240 mm2 and two substations are a substation a and substations b with different distances of 400m, 500m, 600m, 700m, and 800m, assumed soil resistivity is 100Ωm, with 1m cable burial depth. The greater the distance between the substation then the ratio of voltage increase at the source with the transfer voltage will be smaller, which for the cross-sectional area of the cable 70 mm2 with a distance of 400 m then kt 0.9098, while for a distance of 500 m of 0.88862, for 600 m of 0.8717 , For 700 m of 0.8112, and for 800 m to 0.7422. The bigger cross section of the ground cable, the greater the kt ratio, it is seen in the substation with a distance of 500m where the area of cross-sectional 70 mm2 then the big kt is 0.8862, while for 150 mm2 of 0.9207, and for 240 mm2to 0.9212.
EFISIENSI PEMBEBANAN PLTGU PT. KRAKATAU DAYA LISTRIK DENGAN PERHITUNGAN SPECIFIC FUEL CONSUMTION UNTUK MEMINIMALKAN BIAYA PRODUKSI LISTRIK Budi Santoso; Muchamad Nur Qosim; Fahmi Abdul Ajiz
Sutet Vol 5 No 2 (2015): JURNAL ILMIAH SUTET
Publisher : Sekolah Tinggi Teknik - PLN

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (643.467 KB) | DOI: 10.33322/sutet.v5i2.596

Abstract

PT. Krakatau daya listirk (KDL) is a company engaged in the electrical power plant. Krakatau Daya Listrik power plant has a capacity of 3X40 MW that operate with natural gasfuel. Electrical production of PT. Krakatau Daya Listrik used to supply electricity to the entire industrial area of Krakatau, which is biggest customers is PT. Krakatau Stell (KS), Electrical supply from PT. Krakatau Daya Listrik Used to operate PT. Krakatau Stell for electrical arc furnace. The steel smelting process required enormous power and fluctuate greatly, resulting in a loadchange that varies greatly in Krakatau Daya Plant. The load change can affect and Krakatau Daya Listrik Power plant efficiency, it is the increase in powerplant fuel consumtion. This paper will calculated the fuel that influenced by the changes of power plant efficiency of PT. Krakatau Daya Listrik.
Co-Authors Fahmi Abdul Ajiz Husnul Khatimah Azhari Muchamad Nur Qosim