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All Journal Jurnal Simetris Journal of Business Strategy and Execution Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains International Journal of Electrical, Energy and Power System Engineering (IJEEPSE)
Feranita Feranita
Alumni of School of Marketing, BINUS BUSINESS SCHOOL, BINUS UNIVERSITY, JWC Campus, Jl. Hang Lekir I No. 6, Kebayoran Baru, South Jakarta 12120
Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering

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THE EFFECTS OF COUNTRY OF ORIGIN AND PERCEIVED RISK ON INITIAL TRUST: AN EXPERIMENTAL EVALUATION OF THE PERCEPTION OF INDONESIAN CONSUMERS ON SERVICE INDUSTRY ACROSS HIGH RISK AND LOW RISK SERVICES Farina, Tara; Feranita, Feranita
Journal of Business Strategy and Execution Vol 3, No 1 (2010): Published on November 2010
Publisher : Bina Nusantara University

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Abstract

To uncover how COO and perceived risk affect the initial trust in service industry; and to compare these effects across two service industry – high risk versus low risk. A total of 180 respondents were evaluated with different combinations across 2 service industries. The research findings confirmed the effect of country of origin and corporate reputation on initial trust and the relationship between perceived risk and COO. Before engaging to a service, respondents put into considerations for COO and corporate reputation. COO effect may differ across different service industry.
Analisa Ketidak Seimbangan Beban Terhadap Arus Netral Dan Losses Pada Transformator Distribusi Di Gedung Fakultas Teknik Universitas Riau Fahrurozi, Fahrurozi; Firdaus, Firdaus; Feranita, Feranita
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 1, No 2 (2014): Wisuda Oktober Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Load Imbalancing in power distribution system that has been occurred either by inconstant load factor in its phase or power on with diffrent period. The consequences of Load Imbalancing is current appears in neutral trafo and losses cannot avoid. Decreasing quality of voltage and current, trafo efficiency, enegy measuring is loss that caused. voltage and Current quality is going decrease due to 0 current distort basic wave until bad. Keywords: loadimbalance, losses, and neutral current.
Analisis Pengurangan Efek Transien Terhadap Penggunaan Switching Kapasitor Bank Pada Saluran Transmisi 150 KV Apriyal, Derry; Zakri, Azriyenni Azhari; Feranita, Feranita
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 2 Juli s/d Desember 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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The use of bank capacitors in an effort to increase the power factor in power quality issues, has several problems to be aware of. Switching capacitor banks during energization can cause transient surges related to transient voltages and currents. This study discusses the simulation and analysis of more transient voltage due to the switching of bank capacitors that occur in riau transmission line 150 kV using MATLAB Simulink 8.7. The effect of transient state when switching capacitor banks can have a detrimental impact, both for equipment and the system as a whole. Use Synchronous Closing Breaker as one solution to solve this problem. By using Synchronous Closing Breaker can reduce the voltage more in the transient state and dampen the oscillations that occur. The result of simulating the transient voltage value produced on Garuda Sakti bus reaches 1.35 pu, and the use of synchronous closing breaker method can reduce the transient voltage up to 1.04 pu. To reduce transient oscillations, it can also reduce transient current from a value of 532.2 A can be reduced to 476.1 A. The percentage of transient voltage reduction of synchronous closing breaker usage is 22.96%.Keywords: Electric Power System, Transient, synchronous closing breaker, Matlab R2016a/Simulink.
Analisis Pengurangan Efek Transien Terhadap Penggunaan Switching Kapasitor Bank Pada Saluran Transmisi 150 KV Apriyal, Derry; Zakri, Azriyenni Azhari; Feranita, Feranita
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 2 Juli s/d Desember 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

The use of bank capacitors in an effort to increase the power factor in power quality issues, has several problems to be aware of. Switching capacitor banks during energization can cause transient surges related to transient voltages and currents. This study discusses the simulation and analysis of more transient voltage due to the switching of bank capacitors that occur in riau transmission line 150 kV using MATLAB Simulink 8.7. The effect of transient state when switching capacitor banks can have a detrimental impact, both for equipment and the system as a whole. Use Synchronous Closing Breaker as one solution to solve this problem. By using Synchronous Closing Breaker can reduce the voltage more in the transient state and dampen the oscillations that occur. The result of simulating the transient voltage value produced on Garuda Sakti bus reaches 1.35 pu, and the use of synchronous closing breaker method can reduce the transient voltage up to 1.04 pu. To reduce transient oscillations, it can also reduce transient current from a value of 532.2 A can be reduced to 476.1 A. The percentage of transient voltage reduction of synchronous closing breaker usage is 22.96%.Keywords: Electric Power System, Transient, synchronous closing breaker, Matlab R2016a/Simulink.
Analisis Penempatan Recloser Untuk Mendapatkan Indeks Keandalan Terbaik Menggunakan Metode Ant Colony Optimization (ACO) Dwidana, Atikah Zahrah; Sukma, Dian Yayan; Feranita, Feranita
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 2 Juli s/d Desember 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

The distribution system is an important part of the electrical energy distribution activities as directly connected to the customers. Therefore, the distribution system is always required to have good reliability. One of solution to increase reliability is using recloser in the medium voltage feeder.Optimal placement of recloser will be able to maximize reliability. In this researched, the author used a Ant Colony Optimizization method in determining the optimal position of recloser. Objective function is combining SAIFI and SAIDI. SAIFI and SAIDI are calculated using section technique method. Simulation calculations using MATLAB (Matrix Laboratory) programming. Program testing was carried out on the Gurami Feeder network at PT. PLN (Persero) ULP West City Pekanbaru Area which distributes electrical energy sourced from the Garuda Sakti Substation. Gurami feeder is a radial distribution network. Based on the application of the ACO method, the best position for placing the addition of a recloser on the main feeder before the distribution transformer is KB-0508 (100kVA). The addition of the recloser with the best position resulted in a reduction in the SAIDI value from the initial value of 16.647 hours/year to 14.040 hours/year and the SAIFI value from the initial value of 18.907 times/year to 15,928 times/year. Keywords: reliability, ant colony optimizazition, section technique, recloser.
Automatic Cat Breeding and Drinking Equipment via Mobile Network Monitoring Feranita, Feranita; Safrianti, Ery; Tambunan, Yuli Sartika
International Journal of Electrical, Energy and Power System Engineering Vol. 1 No. 2 (2018): International Journal of Electrical, Energy and Power System Engineering (IJEEP
Publisher : Electrical Engineering Department, Faculty of Engineering, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (710.917 KB) | DOI: 10.31258/ijeepse.1.2.9-13

Abstract

This study aims to design a feeding and drinking tool for pet cats automatically based on SIM900A GSM Module. Design using GSM SIM900A, Arduino, RTC, load cell and Direct Current (DC) pump. This tool can be controlled to feed and drink the cat automatically at a distance. The working system of the tool consists of load cell 1, load cell 2 and water limit sensor which is an input result of measurement object which will be processed by arduino. Load cell 1 is used for measuring cat body weight, load cell 2 serves to measure cat feed weight and water limit function to enable and disable direct current pump. The pump will pump water to fill the cat drinking container if the container is empty. Data received by Arduino will be processed when the Real Time Clock (RTC) indicates the schedule of the cat’s feeder that has been set. Then the SIM900A GSM module will work sending short messages (SMS) to the mobile phone to inform the system has been working automatically feed the cat.
Carbon Conversion Using High Voltage Plasma Method Based on Mangrove Wood Charcoal Aldi, Robi; Feranita, Feranita; Murdiya, Fri; Safrianti, Ery; Sari, Linna Oktaviana
International Journal of Electrical, Energy and Power System Engineering Vol. 6 No. 2 (2023): The International Journal of Electrical, Energy and Power System Engineering (I
Publisher : Electrical Engineering Department, Faculty of Engineering, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ijeepse.6.2.168-175

Abstract

This study investigates the conversion of mangrove wood charcoal into graphene using high voltage plasma technology through arc discharge. The experiment involves heating carbon with high voltage plasma generated from rod and plate electrodes. The variables examined are the electrode distance and carbon treatment time. The results demonstrate the successful conversion of mangrove wood charcoal into graphene. The generated plasma is influenced by the electrode distance, with a 1 cm gap producing stronger bluish-orange plasma. Varying the treatment time also affects the graphene yield, with a 3-minute treatment generating more graphene compared to 2 minutes, and 2 minutes yielding more graphene than 1 minute. XRD analysis reveals characteristic peak shifts indicative of graphene presence. SEM analysis confirms the graphene structure with porous features and sub-micrometer sizes. SEM images and diameter data further validate the successful conversion of carbon into graphene. These findings provide a foundation for the development of high voltage plasma-based production of graphene from mangrove wood charcoal. The utilization of a 10kV Neon Power Supply transformer enables the generation of high voltage plasma for the carbon-to-graphene conversion process. The electrode distance in the transformer plays a crucial role, as greater distances result in higher voltages, while shorter distances lead to lower voltages. This research significantly contributes to expanding the knowledge and application of graphene in various scientific and engineering fields. Moreover, the understanding of how electrode distance affects the generated voltage using a Neon Power Supply transformer is an important finding for optimizing the performance of this type of transformer.
Comparative Analysis of OLSR and DSR Routing Protocol Performance on Vehicular Ad Hoc Network (VANET) Safrianti, Ery; Sari, Linna Oktaviana; Romadan, Ahmad; Feranita, Feranita
Simetris: Jurnal Teknik Mesin, Elektro dan Ilmu Komputer Vol 14, No 2 (2023): JURNAL SIMETRIS VOLUME 14 NO 2 TAHUN 2023
Publisher : Fakultas Teknik Universitas Muria Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24176/simet.v14i2.9875

Abstract

Communication between vehicles is essential in increasing comfort and safety for drivers and passengers. Technology advancements offer a new concept: the Vehicular Ad Hoc Network (VANET). The VANET network allows vehicles on the road to communicate directly with other vehicles while moving and without using the fixed infrastructure. A routing protocol is needed to facilitate communication in the network. Routing protocols are used to find routes between nodes to send messages to each other and forward packets along the selected route. In this study, a comparative analysis of the performance of the topology-based routing protocols will be carried out: Optimized Link State Routing (OLSR) and Dynamic Source Routing (DSR) on VANET with a case study of urban road scenarios. Both protocols are simulated using Network Simulator 2 (NS-2) with a scenario of changing the number of nodes. The two protocols were compared and analyzed from the parameters of packet delivery ratio, end-to-end delay, routing overhead, throughput, packet loss, and collision rate. Based on the simulation results, the overall DSR routing protocol has a better performance value with an average Packet delivery ratio of 99.92%, End-to-end delay of 0.0894 ms, Routing overhead of 1,000 ms, the throughput of 261.55 kbps, Packet loss of 0.0778% and collision rate 1.8770. While the OLSR routing protocol has an average value of Packet delivery ratio of 99.89%, End-to-end delay of 0.0878 ms, Routing overhead of 1,000 ms, throughput of 230.27 kbps, Packet loss of 0.1007%, and collision rate of 1.6687.
Co-Authors Aldi, Robi Apriyal, Derry Azriyenni Azhari Zakri Dian Yayan Sukma, Dian Yayan Dwidana, Atikah Zahrah Ery Safrianti Fahrurozi, Fahrurozi Firdaus Firdaus Fri Murdiya, Fri Linna Oktaviana Sari Romadan, Ahmad Tambunan, Yuli Sartika Tara Farina