T. Sucita, Y. Mulyadi
Main generation area II technically served several plants that Jatiluhur, Saguling and Cirata. The backbone of the generation (slack bus) held by two units supplied by IBT 500/150 kV with a power capacity of each IBT is 500 MVA. One sample is a sub-system supplier Cirata has 13 transmission line connecting the substation 8 (GI) and has a total of 17 150/20 kV transformer with a capacity of 930 MVA, while the existing generation units at 150 kV Cirata subsystem is PLTPb Patuha with a power of 55 MW. Given the large power capacity with the strategic and vital functions of the sub-systems of 150 kV Cirata requires maximum control and optimization so that the distribution of electricity in West Java can be properly maintained. System Reliability of the power system must be maintained in order to supply power from the generator to the consumer to keep going well. In this study, the disorder will be analyzed is the contingency (N-1), a discharge of one of the channels on the system. Then analyzes the current and voltage changes to prepare for system improvements. Repairs are done when the contingency is to release the load (load shedding). Reliability was measured after load shedding in this study is to measure the quality of the voltage on the load side. At the time of the contingency (N-1), a decline below the voltage value SPLN on some rails GI, including rail Cigereleng (124.8 kV to 136.8 kV), rail Lagadar (125.4 kV to 137.1 kV), rail Padalarang (126.1 kV to 137.5 kV), North Bandung rail (125.5kV be 137.3 kV) and rail Cibabat (125.6 kV to 137.2 kV). © Published under licence by IOP Publishing Ltd.
Department of Electrical Engineering Education, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi no 229, Jawa Barat, Bandung, 40154, Indonesia
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