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All Journal Budapest International Research in Exact Sciences (BirEx Journal) Jurnal Ilmu Komunikasi Andalan
Sadikin, Firman
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Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Environmental Science Languange, Linguistic, Communication & Media Physics Social Sciences Transportation

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Study on the Use of CT Ring Protection as Back Up Protection For Overcurrent Disruptions in PLN Distribution Network System Sadikin, Firman; Sudiarto, Ing. Budi
Budapest International Research in Exact Sciences (BirEx) Journal Vol 6, No 1 (2024): Budapest International Research in Exact Sciences, January
Publisher : Budapest International Research and Critics University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/birex.v6i1.7810

Abstract

Protection is a safeguard in the electric power system installed in the electric power distribution system, power transformers, electric power transmission, and electric generators used to protect the electric power system from electrical disturbances or overloads by separating the disturbed part of the electric power system from the existing electric power system. Not disturbed so that the uninterrupted electrical system can continue to work. Failure of the protection system at the KG02 and KG 180 substations at PT PLN (Persero) UP3 Tanjung Priok when short circuit currents occurred on the phases on the consumer side resulted in the PMT (Power Breaker) of the feeder tripping. This resulted in widespread outages which had a negative impact on the image of PT PLN (Persero) UP3 Tanjung regarding network reliability. To find out the cause of the protection system failure, CT (Current Transformer) checks were carried out on the three substations. At the KG02 substation, the 345KVA CT power contract is installed with a ratio of 10/5 and class 5P10 with a fault current of 2861A. At the KG180 substation, the CT is installed with a ratio of 100/5 with class 5P10 with a fault current of 6547A. From the results of the data from the two substations above, the protection system failure occurred in the current transformer which was saturated when a fault current exceeded 2861A and 6547A. To overcome protection failures at the two substations above, it is necessary to add a CT Ring 800/5 with class 5P20, with the test results being a reference for improving the protection system so that similar failures do not happen again.
Pola Komunikasi Karyawan Tunarungu dalam Hubungan Kerja di PT Pou Yuen Indonesia Sadikin, Firman; Rahayu, Hlida Sri
JIKA (Jurnal Ilmu Komunikasi Andalan) Vol. 7 No. 2 (2024): Vol. 7 No. 2 (2024)
Publisher : Universitas Majalengka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31949/jika.v7i2.10792

Abstract

This study aims to obtain an overview of the communication process of deaf disabled workers in working relationships at PT Pou Yuen Indonesia. This research uses a qualitative method with a case study approach. Data collection techniques were carried out using interview techniques, observation, Forum Group Discussion (FGD), and documentation. The results showed that the communication process of deaf employees in working relationships occurs primary using non-verbal language such as hand gestures, lip movements, written media, paper and cellphones. This primary process occurs when superiors, coworkers, and deaf employees ask questions, explain instructions or information related to work. In the secondary communication process, there is a special Whatsapp chat group for deaf employees which is used as a medium of information and communication between deaf employees and superiors and coworkers. Then the communication process can also be categorized as circular because there is a reciprocal process between deaf and non-disabled employees interactively during working hours every day.
Co-Authors Rahayu, Hlida Sri Sudiarto, Ing. Budi