CD Skripsi
Analisis Ekonomis Penggunaan Variable Speed Drive Sebagai Pengendali Motor Induksi Tiga Phasa (Studi Kasus: Pt Riau Andalan Pulp And Paper)
PT RAPP is one of the companies that uses a three-phase induction motor in
production where the motor is used as a pump, pulp dryer, or conveyor. Some districts
in PT RAPP have used VSDs as controllers for three-phase induction motors, but
some are still using the star-delta system. This study aims to compare the energy use
of a three-phase induction motor when it is controlled by a Variable Speed Drive
(VSD) and when it is without the VSD. This study also aims to analyze from an
economic aspect, namely the total energy tariff per year and the calculation of the
Pay Back Period (PBP) or the refund period. This research was conducted by
collecting motor work data for a month. The research was conducted by observing
the research subject, then collecting data on motor performance. The research data
were taken from two districts, namely Fiberline 1 and Fiberline 2, the data that has
been obtained will be calculated. There are 3 calculations in this research, namely
calculation of total electrical energy, calculation of electricity rates and calculation
of PBP. The results of this calculation will produce a large amount of electric energy
when a three-phase induction motor is connected to VSD and without VSD, savings
in electricity rates when using a VSD and a period of return on investment in VSD
installation. The results of data analysis on Fiberline 1 show the amount of energy
saved when the motor uses a VSD of 739949,15 kWh with a large energy tariff savings
of IDR 8.850.443.037,096 and a payback period of 8 months. In Fiberline 2, it shows
the amount of energy saved when the motor uses a VSD of 479966,789 kWh with a
large energy saving of Rp. 5.744.309.550,97 and a payback period of 19 months.
Keyword: Energy, Induction Motor, Payback Period, VSD
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