Penentuan Kapasitas Daya Reaktif Dan Frekuensi Tuning Filter Pasif Untuk Mengurangi Kandungan Arus Harmonik Beban

This studi involve decresing method of harmonic current content in a radial distribution systems used single tuned passive filter. The distribution systems model consist of transformer 20/0,4 kV supplying groups of non linier loads that is represented by personal computer (PC) and fluorescent lamp 2x40 W as load harmonic current source. Passive filter was installed in PCC bus (0,4 kV) and analysis to be conducted according to IEEE std.1531-2003 and IEEE std. 519-1992. The reesult showed that insalation passive filter in PCC bus will decrease magnitut load harmonic current significantly. The decreasing determined by reactive power capacity and frequency tunning of passive filter

Studi Pemberdayaan Lembaga Pengelola Jaringan Irigasi di Tingkat Desa

Dalam rangka menuju kemandirian dan ketahanan pangan ,maka pemerintah berupaya untukmeningkatkan produksi beras dan taraf hidup petani sehingga diperoleh manfaat penghematan devisa nasionaldan membuka kesempatan kerja serta mengurangi kemiskinan. Tujuan dan manfaat studi adalah penyusunansrtategi dan kebijakan pemberdayaan Lembaga Pengelola Jaringan Irigasi di tingkat desa dan sebagai pedoman untuk meningkatkan keberadaan HIPPA sebagai lembaga pengelola jaringan irigasi yang mandiri dalam pengelolaan maupun pemeliharaan jaringan irigasi . Metode yang dipergunakan adalah analisis SWOT untukmenentukan Strategi kebijakan pemberdayaan HIPPA. Hasil studi menunjukkan bahwa keberhasilan pemberdayaan HIPPA diperlukan strategi dan kebijakan sebegai berikut : organisasi HIPPA harus berbentuk badan hukum, pemerintah sebagai fasilitator, motivator, mengadakan kerja sama pengelolaan, menyediakan tenaga pendamping, menyediakan sarana produksi dan memfasilitasi pembentukan koperasi serba usaha. Kata kunci : Pemberdayaan, irigasi, HIPP

Perencanaan Sistem Distribusi Dengan Analisa Aliran Daya

This paper presents system distribution planning study with minimum investment base for 10 years. The planning will begin from existing condition (first year) and shows migration of system growth from first year  until tenth year. The planning constrain are voltage criteria and equipment capability. The study use  distribution power flow analysis as metode. The result of this study is distribution power flow analysis can  predict equipment profile that out of criteria and this condition make the planning more efective

Penentuan Pembebanan Maksimum Transformator Daya Yang Menyuplai Personal Computer (PC)

Personal computer is electronic equiment that use solid state device, such as rectifiers, so it to be source of harmonic current. Harmonic current is sinusoidal current with multiple frequency of fundamental current which will be increase power losses because increasing effective current and frequency. In electric distribution system, transformer is component with highest power losses. They are consit of DC losses (Pdc) that influence by effective current, eddy current (PEC) and other stray losses (POSL) which influence by effective current and their frequency. This study involved increasing transformer power losses with assume that transformer supply in full load condition to personal computer. Analyzes following IEEE Std. C57.110-1998 with comparing determination maximum transformer loading use current spectrum from spectrum analyzer equipment and conversion produce Mathlab from current wave time domain to current wave frequency domain. The result are maximum transformer loading is 97,84 use spectrum analyzer and 97,84 use Mathlab sofware