In a distribution system, the quality of the reliability can be seen from the duration of the power outage or SAIDI (System Average Interruption Duration Index) and how often the power outage happened in a unit of time or SAIFI (System Average Interruption Frequency Index). One of the ways that had been done by PT. PLN (Persero) Bali distribution South Bali area's network to reduce the number of customers' power outage when the interference occurred is by installing Load Break Switch (LBS) three way. The results of the calculation of quality reliability based on outage of Gunung Agung feeder after installation LBS Three Way with SAIFI is 0.989688526 and SAIDI is 0.683913253, while of Imam Bonjol feeder after installation LBS Three Way with SAIFI is 0.683913253 and SAIDI is 3.908243775. The results of analysis influence installation LS Three Way to customer DB0133 (United Overseas Bank) thai is customer DB0133 no experience power outage if disruption of Gunung Agung feeder because customer in maneuvering for Imam Bonjol feeder. Based on the analysis of maneuverability load on Gunung Agung and Imam Bonjol's feeders after the installation of LBS three way. Gunung Agung's feeder was capable in maneuvering customers section I and III from Imam Bonjol's feeder and Imam Bonjol's feeder was capable in maneuvering customers section III, IV, and V from Gunung Agung's feeder.
The increasing need for electrical power with a stable and continuous distribution ofelectricity networks is an absolute requirement in meeting the needs of electrical energy. Theload imbalance between each phase (phase R, phase S, and phase T) which flows a net currentin the transformer, because of the transformer tolerance set by PLN, which is 20% of the powercapacity of the transformer In Abiansemal feeders there is a load imbalance of more than 20 %then in this study the load balancing is carried out in the LVMDV panel on three-phasecustomers, which has an impact on the load imbalance between each phase (phase R, phaseS, and phase T) which causes a neutral current and causes losses (losses). Based on thisproblem, balancing must be done by measuring first. From the measurement results in theLVMDP panel on three-phase customers and data obtained from the results of measurement ofload imbalance during the day is 29.9% and 26.6 % and the load imbalance at night is 62.6%and 31%, as shown in Table 4.5, it can be seen that the bush on the large current neutral INthat flows in the transformer neutral conductor, the greater the loss in the neutral conductor(PN).
Pada sistem distribusi, kualitas keandalan dapat dilihat dari lamanya pemadaman atau SAIDI (System Average Interruption Duration Index) dan seberapa sering pemadaman terjadi dalam satuan waktu atau SAIFI (System Average Interruption Frequency Index). Sebuah upaya yang telah dilakukan oleh PT. PLN (persero) Distribusi Bali AJ Bali Selatan untuk mengurangi jumlah pelanggan padam saat terjadi gangguan yaitu dengan cara pemasangan LBS Three Way. Berdasarkan hasil perhitungan kualitas keandalan pada penyulang Gunung Agung setelah pemasangan LBS Three Way yaitu SAIFI sebesar 0.989688526 dan SAIDI sebesar 5.737530618, penyulang Imam Bonjol setelah pemasangan LBS Tree Way yaitu SAIFI sebesar 0.683913253 dan SAIDI sebesar 3.908243775. Hasil analisa pengaruh pemasangan LBS Three Way terhadp pelanggan DB0133 (United Overseas Bank) yaitu pelanggan pada DB133 tidak mengalami pemadaman apabila terjadi gangguan pada penyulang Gunung Agung karena pelanggan dapat dimanuver oleh penyulang Imam Bonjol. Berdasarkan perhitungan kemampuan manuver beban pada penyulang Gunung Agung dan Imam Bonjol dapat dikatakan penyulang Gunung Agung mampu memanuver beban seksi I dan III pada penyulang Imam Bonjol, dan penyulang Imam Bonjol mampu memanuver beban seksi III, IV dan V pada penyulang Gunung Agung. DOI: 10.24843/MITE.1501.09
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