Digital Library: No conditions. Results ordered -Date Deposited. 2024-03-28T13:50:11ZEPrintshttp://digilib.unila.ac.id/images/sitelogo.pnghttp://digilib.unila.ac.id/2017-04-22T10:07:20Z2017-04-22T10:07:20Zhttp://digilib.unila.ac.id/id/eprint/26357This item is in the repository with the URL: http://digilib.unila.ac.id/id/eprint/263572017-04-22T10:07:20ZAplikasi Monitoring Sistem Kelistrikan JTE Unila Berbasis BCM2835 University of Lampung (Unila), particularly the Department of Electrical Engineering (JTE) always strives to provide
the best service electricity system to optimize the utilization of existing internet access. There are several electrical
quantities that need to be considered and maintained its quality, so it needs to be monitored in real time, i.e.: voltage,
current, cos phi, power and electrical energy consumption. Step-down transformer and a current sensor ACS712-30A
are the main component for measuring voltage and current. While the values of other electrical quantities are
obtained from the calculation using the Python programming based Single Board Computer BCM2835 or Raspberry
Pi. Measurement and calculation results can be monitored using electrical system monitoring applications based on
web. The results-based monitoring application using electrical system monitoring applications has demonstrated that
the pattern of consumption of electrical energy, voltage, current, power, cos phi between the phase at JTE buildings
tend to be unbalanced.
Key word : electrical system monitoring, real time, voltage sensor, current sensor, BCM2835, JTE Unila Mardiana Mardianamardiana@eng.unila.ac.idDikpride Despadespa@eng.unila.ac.idHerri GusmediGigih Forda Namagigih@eng.unila.ac.id2017-04-22T09:59:39Z2017-04-22T09:59:39Zhttp://digilib.unila.ac.id/id/eprint/26356This item is in the repository with the URL: http://digilib.unila.ac.id/id/eprint/263562017-04-22T09:59:39ZReal-time Monitoring System of Electrical Quantities on ICT Centre Building University of Lampung Based on Embedded Single Board Computer BCM2835Abstract— University of Lampung (Unila) as an academic institution should provide the internet service for thousands of users, monitoring the condition of electricity (Voltage, Current, Power factor, Power, and Energy consumption measurement) at ICT center building has an important role, as a part of maintenance lifecycle to make sure the internet services running well, system monitoring implemented in order to know the quality of electricity supply in the system, identifying disruption events, and to calculate the amount of electrical energy usage periodically. In this research we made an application to monitor the electrical quantities in real time, and shown the statistic reports through web interface. This research was conducted on the 3-Phase electricity network at ICT center building Unila. Monitoring of voltage was done by using a step-down transformator as voltage sensor, and Current Transformer SCT-013 100A as current sensor. Energy, Power, and Power Factor value was obtained by some of scientific calculation. Python programming language was used to develop the application, mainly for data acquisition and calculation that run on BCM2835 Embedded Single Board Computer. The result of this research shown that energy consumption for each Phase was not in balance, 1st and 2nd Phase mostly high load during working hours only, while 3rd Phase energy consumption relatively stable at all time, this happen because 3rd Phase connected to Data Center which consist of several server and network equipment that always online for 24 hours.
Keywords— 3-Phase electrical networks, embedded system, voltage sensors, current transformer SCT-013 100A, energy consumption, BCM2835 embedded single board computer.
Gigih Forda Namagigih@eng.unila.ac.idDikpride Despadespa@eng.unila.ac.idMardiana Mardianamardiana@eng.unila.ac.id2017-04-22T09:53:57Z2022-03-08T23:51:56Zhttp://digilib.unila.ac.id/id/eprint/26355This item is in the repository with the URL: http://digilib.unila.ac.id/id/eprint/263552017-04-22T09:53:57ZMulti-Area Smart Monitoring of Electrical Quantities Based on Mini Single Board Computer BCM 2835Abstract— Multi-Area Smart Monitoring Systems are applications and devices that can monitor the amount of electricity at various locations in the distribution panel. This paper presents a scheme for multi-area smart monitoring of electrical quantities trends in real-time, to overcome the limitations of techniques that are applicable only to one panel of a three-phase distribution system. The implementation of the proposed scheme increases the possibility of taking preventive action for protection in case of abnormal conditions. A Single Board Computer BCM2835 SoC, ARM11767JZF-S 700 MHz processor is utilized to serve as an interface for obtaining data of the electrical quantities. It collects the data and saves them to a database system. All data utilized in this study are obtained from the LAB-JTE and the ICT-unila. Both locations are on the campus of the UNILA. These data have been recorded and sent to a computer server through the Local Area Network connection and monitored in real time. The monitoring of data which was conducted from the 29th May to the 31st May 2016 produced significant results, showing that the voltage, current and load connected to the monitored phase, relatively has asymmetric trends. The results also demonstrated that at noon, the electrical energy consumption trends at the Unila is in accordance with the working hours there. Finally, by comparing the results obtained from the monitoring of the electrical quantities trends at the LAB-JTE and the ICT-Unila, it is shown that the conditions of the electrical quantities at the ICT-Unila has better measurement results.
Keywords— Multi-area panel distribution, real-time monitoring, Electrical Quantities, BCM2835, Unila
Dikpride Despadespa@eng.unila.ac.idMardiana Mardianamardiana@eng.unila.ac.idGigih Forda Namagigih@eng.unila.ac.idMichael Zontche Bernard2017-04-22T09:41:13Z2017-04-22T10:16:10Zhttp://digilib.unila.ac.id/id/eprint/26354This item is in the repository with the URL: http://digilib.unila.ac.id/id/eprint/263542017-04-22T09:41:13ZSmart Monitoring Data Centre base on Mini Single Board Computer BCM 2835Data center must be able to provide an excellent service for customers specified in electricity services and internet connection. Electrical and Internet services must be maintained properly, and its quality should be monitored at all time in order to carry out preventive and corrective action if there any potential event of disruption or unconditional incident. This study makes an online system that can monitor the electrical quantities, temperature and bandwidth in data centers building that can be accessed by the infrastructure manager. Mini single board computer Broadcom BCM2835 SoC, ARM11767JZF-S 700 MHz processor (Raspberry Pi model B) is a major component used in this study. Raspberry Pi serves as an interface to gathered the data of electrical quantities, temperature and bandwidth for saving the data. The results of 3-phase electrical system monitoring at data center “Unit Pelayanan Teknis Teknologi Informasi dan Komunikasi Universitas Lampung (UPT-TIK-UNILA)” shown that phase voltage tends to be stable in 200 V to 230 V. The peak voltage occur during 11 am to 2 pm, because of the user pattern usage to use their electrical equipment at that time. For temperatures, the result shown that the highest temperature every day accours at 10 am until 1 pm, this could be happen because of the influence of the outdoor temperature. While bandwidth usage increase during working hours at 8 am to 4 pm, which indicates the users using the internet connection during the working hours.
Keywords: Smart monitoring, Electrical Quantities, Temperature, Bandwidth, Raspberry Pi, Data Centre, UPT-TIK UNILA.Dikpride Despadespa@eng.unila.ac.idMardiana Mardianamardiana@eng.unila.ac.idGigih Forda Namagigih@eng.unila.ac.id