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All Journal ERGOTRONIK: Jurnal Teknik Industri dan Elektro
Dewi Rahmawati
Universitas Teknologi Nusantara

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Analisis Keandalan Sistem Backup Power Menggunakan Generator dan UPS di Hotel 101 Bogor Suryakencana Chandra Ramdan Kusumah; Dewi Rahmawati
Jurnal Teknik Industri dan Elektro Vol 1 No 1 (2026): Jurnal Teknik Industri dan Elektro
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat Universitas Teknologi Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.66185/ergotronik.v1i1.47

Abstract

Reliability of electricity supply is a crucial factor for the hotel industry to maintain guest comfort and smooth operations. Hotel 101 Bogor Suryakancana relies on electricity from PLN as its primary source and a backup system consisting of a 750 kVA generator set and UPS. This study aims to analyze the reliability of the backup power system, including the Automatic Transfer Switch response time, the generator supply capacity, and the role of the UPS in transferring power sources during a PLN power outage. The results show that the load transfer time from PLN to the generator via the ATS averages 10 seconds, and the UPS is able to maintain uninterrupted power supply to the servers during the transfer. Calculations indicate that the generator capacity is sufficient to back up the entire hotel load with a nominal current of 1140.85 A and an ACB setting of 1711.28 A.  This indicates that the backup power system has good reliability in maintaining continuity of electricity supply. Suggestions are given for routine testing and maintenance of the ATS and UPS systems to maintain optimal performance.
EFISIENSI PEMAKAIAN ENERGI LISTRIK PADA ESKALATOR MENGGUNAKAN INVERTER DI MALL SARINAH THAMRIN Suherman Suherman; Dewi Rahmawati
Jurnal Teknik Industri dan Elektro Vol 1 No 1 (2026): Jurnal Teknik Industri dan Elektro
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat Universitas Teknologi Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.66185/ergotronik.v1i1.58

Abstract

An escalator or moving staircase is a type of vertical transportation that uses a conveyor system to move people up and down. This research is motivated by the fact that many people do not know the energy used by escalators when moving fast and slow, and are not aware that they can save energy by using more efficient technology, the technology is called an inverter. This study examines how well escalators use electrical energy and what factors affect their work efficiency. The test results show that an induction motor at a frequency of 20 Hz has an efficiency of 0.9% and a slip value of 1.6%, then at a frequency of 50 Hz it has an efficiency of 0.7% and a slip value of 3.3%. The electricity cost of an induction motor at a frequency of 20 Hz is Rp 140,855.28, then at an induction motor with a frequency of 50 Hz is Rp 150,537. So the results of this study can be concluded that the use of Inverter technology can affect how much energy an escalator uses and its electricity costs. The use of inverter technology can reduce the electrical power used during low-traffic times, which helps save electricity costs.
Co-Authors Chandra Ramdan Kusumah Suherman Suherman