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International Journal of Research in Vocational Studies (IJRVOCAS)
Published by Yayasan Ghalih Pelopor Pendidikan
ISSN : 27770168     EISSN : 27770141     DOI : https://doi.org/10.53893/ijrvocas.v1i1
Core Subject : Economy, Science, Education, Social, Engineering,
Aerospace Engineering Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other
The International Journal of Research in Vocational Studies (IJRVOCAS) is a double-blind peer-reviewed journal. This journal provides full open access to its content on the principle that making research freely and independently available to the science community and the public supports a greater global exchange of knowledge and the further development of expertise in the field of vocational education and training (VET). IJRVOCAS is since the beginning independent from any non-scientific third-party funding. The establishment of the journal was supported between 2015 and 2016 with grants from the Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation). All members of IJRVOCAS work on an honorary basis. The journal is hosted by Ghalih Publishing and the publishing house of the Ghalih Academic. Scope IJRVOCAS covers all topics of VET-related research from pre-vocational education (PVE), initial vocational education and training (IVET) and career and technical education (CTE) to workforce education (WE), human resource development (HRD), professional education and training (PET) and continuing vocational education and training (CVET).
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 252 Documents
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Exploring Motivational Factors Influencing Senior High School Students' Aspirations Toward Higher Education: Evidence from Sukamara Regency, Indonesia Muhammad Toasin Asa; Muhammad Ali; Liliyana; Evi Sofiana
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 6 No. 2 (2026): IJRVOCAS - August
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijrvocas.v6i2.537

Abstract

This study investigates the internal and external factors associated with senior high school students' interest in pursuing higher education in Sukamara Regency, Indonesia. Data were collected from 277 Grade XI and XII students across 14 schools using a structured questionnaire. Grounded in Expectancy-Value and Self-Determination Theories, Exploratory Factor Analysis (EFA) revealed seven key motivational dimensions, with Aspirational Drive and Confidence and Initiative emerging as dominant factors. Chi-square analyses demonstrated a significant, medium-sized association between gender and higher education interest, with female students displaying stronger aspirations (p < .001, Cramér’s V = 0.254). While parental education and school type did not show significant categorical differences, a significant monotonic trend indicated that student interest tends to increase with higher parental education levels. The findings highlight strong intrinsic motivation among students in this region, despite external challenges. Policy implications emphasize enhancing institutional credibility, strengthening familial support systems, and expanding accessible higher education infrastructure.
Analytical Evaluation of Existing ANSI 50/51 Overcurrent Relay Settings for Coal Mill 2B Motor at STG-BB Power Plant, PT Pupuk Sriwidjaja Palembang Rumiasih; Andri S; Carlos RS; Mutiar; Siswandi; Arif EN
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 6 No. 2 (2026): IJRVOCAS - August
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijrvocas.v6i2.538

Abstract

This study presents an analytical evaluation of the existing ANSI 50/51 overcurrent relay settings for the Coal Mill 2B motor at the STG-BB power plant of PT Pupuk Sriwidjaja Palembang. Direct trip testing was not conducted because the motor is part of an operating industrial installation. The evaluation combines a review of the existing relay settings, calculation of the manufacturer-defined Long Time Inverse characteristic, comparison with the reported motor starting current and starting time, and analysis of ten days of recorded operating current, voltage, and active power. The ANSI 51 pickup is 136 A, equivalent to approximately 1.03 times the 132 A motor nameplate current, with TMS = 0.025. The reported high-set ANSI 50 stage is 1,227.6 A, equivalent to 9.3 times the motor nameplate current, with a definite delay of 0.01 s. Using the MiCOM P225 Long Time Inverse characteristic, the calculated operating time at the reported starting current of 985.91 A is approximately 0.48 s, which is close to the upper end of the reported 0.3–0.5 s starting time. Therefore, starting-current ride-through cannot be conclusively verified from the available data. During the ten observation days, the recorded running current ranged from 76.93 A to 95.80 A, with an average of approximately 85.69 A, equivalent to 64.9% of the 132 A nameplate current. The observed current remained 40.20–59.07 A below the 136 A pickup. These results provide an analytical assessment of the existing relay settings under the observed operating conditions, but do not demonstrate complete selectivity, protection coordination, fault sensitivity, or overall relay reliability.

Page 26 of 26 | Total Record : 252

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