Implementation of Data Logging and Fault History in the Automatic Transfer Switch System at the Automation Laboratory, Electrical Engineering Department, Politeknik Negeri Manado
Downloads
Automatic Transfer Switch (ATS) systems are essential for maintaining power continuity in automation laboratories, where equipment such as PLCs, HMIs, and servo drives requires an uninterrupted power supply. Despite widespread ATS deployment, most laboratory-scale implementations operate without a structured mechanism for recording fault events, leaving operators without historical data for reliability evaluation, root-cause analysis, or maintenance planning.This paper presents the design and implementation of an integrated data logging and fault history system for an ATS at the Automation Laboratory, Electrical Engineering Department, Politeknik Negeri Manado, using a PLC–SCADA architecture over Modbus TCP/IP. Two complementary logging mechanisms were implemented: periodic time-series recording of electrical parameters (voltage, current, and frequency) at one-second intervals, and event-driven fault logging that captured timestamped records upon detection of undervoltage, blackout, and trip conditions. The SCADA platform provided real-time visualization, alarm management, historical trend display, and CSV data export. Fifty simulated fault cycles across three fault categories were conducted to evaluate system performance. All fault events were correctly detected and logged, achieving a 100% detection rate, zero false positives, and timestamp accuracy of ±12 ms. Reliability metrics—Mean Time To Repair (MTTR = 2.31 s), Mean Time Between Failures (MTBF = 6.72 h), and system availability (99.990%)—were computed automatically from the historian database.The system transformed a conventional ATS installation into a data-rich monitoring platform capable of supporting quantitative reliability analysis and evidence-based maintenance decision-making.
Copyright (c) 2026 Ilshi Tesalonika Lapian, Jesika Diana Tabar, Renaldy Rondonuwu, Fitria Claudya Lahinta, Alfrets Septy Wauran
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International.
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution-ShareAlike 4.0 International (CC-BY-SA). that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work.
