Measuring the Return on Investment of Training Modules of Electrical Protection and Uninterruptible Power Supply (UPS) Using the Corrective and AHP Approaches

The main purpose of this study is to calculate the return on investment of two training modules of electrical protection and uninterruptible power supply (UPS) using the corrective approaches applied to the basic model presented in previous research. In this study, first, the effect points of the training were identified using open questionnaires completed by experts. Then, its content validity is ensured by Lawshe, Waltz, and Basel approaches. Data on training costs were extracted through financial documentation and estimates. Details of measures, savings, internal supply, and so on were identified and cited to convert the observed effects into financial equivalents. Using the analytic hierarchy process (AHP) approach, the role of training in comparison with other initiatives in each of the effects and achievements was determined, and the net financial achievements of the training were determined. The training return on investment for the electrical protection module was 243% and for the UPS module was 1637%.

Sistem Pendukung Keputusan Pemilihan Kualitas Produk UPS Terbaik Menggunakan Metode Topsis dan SAW

<p><em>Every electronic device requires a good power supply so it perform functionally needed. Many devices use electrical energy. Starting from a laptop or computer device, TV, AC, refrigerator, cellphone, lights all use electric power. Even in every agency or company requires electrical energy for work activities to be more optimal. UPS</em><em> </em><em>(Uninterruptible Power Supply)</em><em> itself is very useful for protecting electronic devices from blackouts that can occur at any time. This tool stores electrical energy such as battery and re-flows it, so that devices such as computers are not damaged. By using the calculation algorithm method TOPSIS (Technique For Others Reference by Similarity to Ideal Solution) and SAW (Simple Additive Weighting) in making the best UPS quality decisions in terms of quality of goods by considering the quality of weight with the following criteria: Price, Capacity (VA), Capacity (Watts) and Runtime at 60W (min).</em></p>

PENGGUNAAN DC-AC CONVERTER SEBAGAI ALTERNATIF PENGGANTI GENSET UNTUK MENSUPLAI BEBAN LISTRIK SAAT TERJADI PEMADAMAN LISTRIK

Abstrak Pemadaman listrik oleh PT.PLN (Persero) yang sering terjadi di beberapa wilayah di Indonesia khususnya pulau – Pemadaman listrik oleh PT.PLN (Persero) yang sering terjadi di beberapa wilayah di Indonesia khususnya pulau – pulau terpencil, memaksa sebagian pihak harus menggunakan genset sendiri demi menjaga kontinuitas energi listrik baik itu untuk kebutuhan rumah tangga, perkantoran, industri dan sebagainya. Tidak sedikit biaya yang harus dikeluarkan pihak pengguna genset, hal ini sangat terasa khususnya bagi sektor industri, dimana ongkos produksi menjadi meningkat cukup signifikan. Penelitian ini bertujuan untuk mengetahui kemungkinan penggunaan dc-ac converter sebagai alternatif pengganti genset untuk mensuplai beban listrik saat terjadi pemadaman listrik oleh PT.PLN (Persero) ditinjau dari aspek ekonomis dan teknis. Pengujian dilakukan pada golongan tarif/daya R-1/900 VA-RTM (Rumah Tangga Mampu) non subsidi. Hasil penelitian menunjukkan bahwa, biaya operasional dc-ac converter untuk continuous load maupun intermitten load lebih murah dibanding genset. Keuntungan penggunaan dc-ac converter ditinjau dari aspek teknis adalah noise kecil, vibrasi tidak ada dan penempatannya lebih fleksibel. Sistem dc-ac converter yang dilengkapi dengan sistem ac-dc converter (rectifier) dan pengoperasiannya secara otomatis menjadikannya sebuah sistem Uninterruptible Power Supply (UPS), sehingga alat ini praktis dan nyaman digunakan.

A Multi Energy Source UPS System using IOT

This paper presents the Multi energy source UPS system using IOT. This concept is very useful for the customers who want to achieve UPS (uninterruptible power supply) from various sources like solar, generator, main, and Battery Powered. This System will work Automatically or the user can Switch (manually) the Sources through wireless IOT platform.

Design of an internet of things based real-time monitoring system for retired patients

The main aim of this article is to design a monitoring center for collecting and evaluating the physiological function of retired patients in nursing homes. The system should be able to collect the information of body heat, heart rate, blood oxygen, orientation, and sleep time in the form of the little bracelet. The evaluating part of the system with the program can be placed into personal computer (PC) which can provide a user-friendly interface and easy managing. The program can display all needed information of the patient from previous days or months in the form of the graphs and the nursing person can have the view of the patient´s physiological health. The evaluation and the collection of the data from each patient are done only on the card and the computer is only a device for live-view and managing. In case of the power failure, the monitoring system will be still operating normally due to the uninterruptible power supply (UPS) in the form of the battery. It means that the system will operate even if the PC is powered off. The system also has several external communication interfaces like wireless fidelity (Wi-Fi), ethernet, and general packet radio service (GPRS) which provides an external connection.