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All Journal EPIC : Journal of Electrical Power, Instrumentation and Control Electrician : Jurnal Rekayasa dan Teknologi Elektro
Ridwan Satrio Hadikusuma
Unknown Affiliation
Control & Systems Engineering Electrical & Electronics Engineering Engineering

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ANALYSIS OF THE INFLUENCE OF STAR DELTA SYSTEM IN REDUCE ELECTRIC STARTING SURGE IN 3 PHASE MOTORS Hardine, Linkha; Dian Budhi Santoso; Ridwan Satrio Hadikusuma
Electrician : Jurnal Rekayasa dan Teknologi Elektro Vol. 16 No. 2 (2022)
Publisher : Department of Electrical Engineering, Faculty of Engineering, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/elc.v16n2.2288

Abstract

Operations in the industry today use induction motors. There are several types of induction motors, one of which is a 3-phase induction motor. In the use of a 3-phase induction motor, there are several problems at the beginning, one of which is that there is a current surge in the starting received by the windings or rotor of a 3-phase induction motor which will cause damage to the motor windings. In previous research, research has been carried out to reduce electric starting spikes in 3 phase motors by lowering the frequency in a study entitled "Adjusting the Speed ??of a 3 Phase Induction Motor by Changing the Frequency Using the ALTIVAR 12P Inverter" it was found that the frequency of the regulated voltage was low and stable to minimize inrush current in 3-phase motor starting. Therefore, research was conducted on a system that can reduce these problems, namely the use of a star-delta system on a 3-phase motor to reduce electrical starting spikes in a 3-phase motor. In this study, the electric current value was 0.59 A, the star-circuit voltage value was 219.65 V, and the short-circuit current value was 1.01 A.
Enhancing IT/OT Security Posture Against Erlang/OTP SSH Exploits Through Threat Campaign Assessment Nabila Latifa Tullaili; Ridwan Satrio Hadikusuma; Aries Suharso
EPIC Journal of Electrical Power Instrumentation and Control Vol 8 No 1 (2025): EPIC
Publisher : Universitas Pamulang, Prodi teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/epic.v8i1.58567

Abstract

The convergence of Information Technology (IT) and Operational Technology (OT) infrastructures exposes organizations to new risks, particularly when facing critical vulnerabilities. This research evaluates the security posture of IT/OT environments against CVE-2025-32433, a severe vulnerability in Erlang/OTP’s SSH daemon that allows unauthenticated remote code execution. The assessment was conducted in a real environment using the Keysight Threat Simulator, where simulated threats were injected from the darkcloud, passed through a Palo Alto Networks firewall, and targeted a host system (Windows Server 2016) with Keysight Agent version 25.7.3-1751647889 and ATI version 25.5.4181.502994. This campaign involving seven malware scenarios using remote hosts and DNS callbacks. The results showed 43 prevention outcomes, 0 detection events, and 9 security recommendations. While the firewall prevented part of the attacks, the detection capability at the host level failed entirely, indicating potential blind spots in monitoring and response.The study concludes that proactive threat simulation is essential for identifying prevention gaps and detection weaknesses in converged IT/OT networks. Recommendations include strengthening host-based detection, improving IT/OT segmentation, and enhancing monitoring of DNS traffic to mitigate exploitation risks.
Co-Authors Aries Suharso Dian Budhi Santoso Hardine, Linkha Nabila Latifa Tullaili