Presentasi perbaikan voltage drop
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Berdasarkan simulasi, pemasangan kapasitor 2 MVA dan pembangkit listrik tenaga mikrohidro 2x800 kVA memberikan perbaikan terbaik pada profil tegangan saluran OK-4. Analisis ekonomi menunjukkan bahwa pemasangan kapasitor memiliki masa bayar kembali tercepat yaitu kurang dari satu tahun, sedangkan pembangkit listrik dan penggantian kabel memiliki masa bayar kembali di bawah tiga tahun. Semua alternat
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Presentasi perbaikan voltage drop
- 1. Studi Perbaikan Kualitas Tegangan & Rugi-Rugi Daya Pada Penyulang OK-4 dgn Menggunakan Kapasitor Shunt, Distributed Generation, Penggantian Penghantar Telaahan Staf Executive Education IV Angkatan I Thn 2011 ADE RAHMAT PT. PLN Cabang Kotamobagu Electricity for Better Life
- 5. Data Beban waktu beban puncak (WBP)
- 6. Flow chart Voltage control START Y Y END N PENGUMPULAN DATA TEGANGAN VARIASI TEGANGAN SESUAI CEK SADAPAN BISA DIUBAH PENGATURAN TEGANGAN TEGANGAN BAIK PENURUNAN IMPEDANSI SALURAN TEGANGAN BAIK Y Y N N Fuse cutout Surge arrester 20 kV Line Transformer
- 7. Alternatif Pemecahan Masalah – Feeder radial dgn Kapasitor shunt switch & Distributed Generation (PLTMH) DG Cs S 1 3 5 7 9 11 13 15 17 19 21 23 25 49 47 45 43 41 39 37 35 33 31 29 27 51 53 55 57 59 61 63 65 67 69 75 83 81 79 77 93 91 89 87
- 11. Simulasi Load Flow dengan ETAP V.4. Capasitor shunt DISTRIBUTED GENERATION
- 12. Profil Tegangan Hasil Simulasi
- 13. Grafik Profil Tegangan Voltage Drop-Eksisting Voltage Drop-with capacitor shunt Voltage Drop-with DG
- 16. Analisa Ekonomi PLTMH (1) Apabila PLTMH direncanakan dengan kapasitas 2x 800 kVA, cos phi 0.91, harga jual listrik sebesar Rp.600,00 per kWh dan mesin dioperasikan dengan Capacity Factor sebesar 70%, maka besarnya pendapatan kotor selama 1 tahun adalah: Jual = 2* (0.7 x 0.91 x 800 kVA x 8760 jam/tahun x Rp.600/kWh) = Rp. 5.356.915.200,00 per tahun Biaya operasional Upah = 12 x ((2 x Rp. 1.500.000,00) + (6 x Rp. 1.000.000,00)) = Rp. 108.000.000,00 per tahun Biaya pemeliharaan asumsi besarnya ongkos Har/mntc sebesar 20% dari pendapatan, maka: Mntc = 0.20 x Rp. 5.356.915.200,00 = Rp. 1.071.383.040 per tahun Sehingga total biaya operasi & har selama 1 tahun: Biaya = Rp. 108.000.000,00 + Rp. 1.071.383.040,00 = Rp. 1.179.383.040,00 /thn
Editor's Notes
- Modeling Requirements – What’s Needed in GIS/EA Smart Grid – State Estimation, if getting voltages from AMR meters, need to know accurate VD through transformers/secondary Modeling Requirements – Discuss impedance derivations for each Loss Analysis – Allocated a fixed load control point kW to models with and without transformers/secondary Calculating X/R – Quick Example Sensitivity Analysis – Created simple example with Center Tap and Triplex and varied 2 inputs to quantify Volt Drop results. Tested Unbalance.
- Modeling Requirements – What’s Needed in GIS/EA Smart Grid– State Estimation, if getting voltages from AMR meters, need to know accurate Voltage Drop through transformers/secondary. Majority of Mapping Systems model to the detailed level with transformers and secondary’s so with most utilities functioning with the seamless integrations between GIS and EA, makes perfect sense. Loss studies at all levels. Reanalyze transformer and secondary service sizing practices to eliminate overbuilds. Jeff Triplett will present a case where transformer/secondary losses were investigated for to develop loss savings programs. Arc Flash- Needed to model 240V and 480V faults