ABSTRACT The purpose of this research is to know about the effect of current rate increasing and ambient temperature change on tripping time miniature circuit breakers 6A type C. In this research using an experimental method approach with the quantitative method. The research subject used five samples new miniature circuit breakers produced by Asian and European brand. The research data collection is carried out by testing using PLN voltage source, linier load and temperature change on chamber to know five samples miniature circuit breakers characteristics tripping time refer to SPLN 108:1993. The research result showed that, current rate increasing to ± 2.55 In and ambient temperature change have an effect on five samples miniature circuit breakers characteristics tripping time, where on reference temperature, different characteristics tripping time for each other however were still within the standard limits SPLN 108:1993. Next on low temperature testing, five samples miniature circuit breakers have change tripping time to be slowed rather than reference temperature testing with deviation MCB A 1.75 until 497.90 second, MCB B 3.81 until 114.89 second, MCB C 2.04 second until 637.42 second, MCB D 0.33 until 1647.96 second, dan MCB E 2.89 until 234.49 second. Last on high temperature testing five samples miniature circuit breakers have change tripping time to be faster rather than reference temperature testing with deviation MCB A 2.63 until 396.93 second, MCB B 2.78 until 251.96 second, MCB C 5.79 second until 775.25 second, MCB D 8.27 until 339.49 second, dan MCB E 3.86 until 95.02 second. Based on this research result, each increase current rate flow through miniature circuit breakers, than miniature circuit breakers tripping time to be faster. When miniature circuit breakers was given low temperature effect, than miniature circuit breakers have change tripping time to be slowed rather than reference temperature. While miniature circuit breakers was given high temperature effect, than miniature circuit breakers have change tripping time to be faster rather than reference temperature. ABSTRAK Tujuan dari penelitian ini adalah untuk mengetahui pengaruh kenaikan besar arus listrik yang disertai dengan perubahan suhu lingkungan terhadap waktu trip pada mini circuit breaker 6A Tipe C. Metode yang digunakan adalah metode eksperimen dengan pendekatan metode kuantitatif. Subjek penelitian yang akan diteliti adalah MCB yang dalam kondisi baru berjumlah 5 sampel produksi asia maupun eropa. Pengumpulan data penelitian dilakukan dengan pengujian menggunakan sumber tegangan PLN, beban linier dan perubahan suhu di chamber pengujian untuk mengetahui karakteristik waktu trip 5 MCB yang mengacu pada SPLN 108:1993. Hasil penelitian menunjukan bahwa, peningkatan besar arus hingga ±2.55 In dan perubahan suhu mempunyai pengaruh terhadap karakteristik waktu trip 5 sampel MCB, dimana pada suhu refrensi masing-masing memiliki perbedaan karakteristik waktu trip namun masih dalam batas standar SPLN 108:1993. Lalu pada pengujian dengan suhu rendah, 5 sampel MCB masing-masing mengalami perubahan waktu trip yang lebih lambat dari pengujian pada suhu refrensi dengan deviasi MCB A 1.75 hingga 497.90 detik, MCB B 3.81 hingga 114.89 detik, MCB C 2.04 detik hingga 637.42 detik, MCB D 0.33 hingga 1647.96 detik, dan MCB E 2.89 hingga 234.49 detik. Sedangkan pada pengujian dengan suhu tinggi 5 sampel MCB masing-masing mengalami perubahan waktu trip yang lebih cepat dari pengujian pada suhu refrensi dengan deviasi MCB A 2.63 hingga 396.93 detik, MCB B 2.78 hingga 251.96 detik, MCB C 5.79 detik hingga 775.25 detik, MCB D 8.27 hingga 339.49 detik, dan MCB E 3.86 hingga 95.02 detik. Dari hasil pengujian yang telah dilakukan di dapatkan hasil semakin besar arus yang melewati MCB maka akan lebih cepat MCB akan trip. Lalu dengan di beri pengaruh suhu rendah, maka MCB akan lebih lambat untuk trip. Sedangkan dengan di beri pengaruh suhu tinggi, maka MCB akan lebih cepat untuk trip.
This article aimed to analyze the energy consumption and energy efficiency in government office buildings of Bengkulu, Indonesia. This research was conducted using a quantitative descriptive method. The research step begins by observing the initial conditions of Energy Consumption Intensity (ECI) to determine the category of buildings that are efficient or not in terms of energy use, then collecting data on the profile of the use of the building and its rooms, recapitulation of the use of energy sources (both electrical energy and other chemical energy), a list of equipment that consumes electrical energy (lighting, air conditioning, and others). Furthermore, measuring the performance of systems and equipment that consumes energy and conducting efficiency analysis to then make recommendations with operating settings, to replace inefficient equipment with more efficient equipment. The final step is to draw conclusions about the final Energy Consumption Intensity (ECI) obtained based on the results of the analysis and recommendations obtained on the previous Energy Consumption Intensity (ECI) value. It can be concluded that the final Energy Consumption Intensity (ECI) of government office buildings of Bengkulu based on the results of the analysis and recommendations such as performing preventive maintenance on air conditioners, the temperature of the air conditioner is set to always be at 24°C, replacing the type of lamp in the artificial lighting system that still uses TLD lamps with LED lamps, and efforts in organizing energy management systems will decrease around 13 percent from the previous Energy Consumption Intensity (ECI) or down from 40.9 kWh/m2/year to be 35.6 kWh/m2/year.
Abstract. The success of the adoption (adoption) of Information and Communication Technology (ICT) in education management is determined by the technological and organizational aspects. The technological aspect in question is user behavior which includes perceptions of the usefulness and ease of ICT, attitudes, intentions, and actual use. While the organizational aspect is the ability of management to develop the application of ICT to support the school management function. This study aims to develop ICT acceptance models in improving school management. New innovations in the development of the ICT acceptance model at Open SMP were carried out through a survey of 29 Open SMPs in DKI Jakarta with 178 respondents. Literature study and empirical study through observation were carried out to produce findings of factual models of the use of ICT in the targeted Open Junior High School. Based on the factual model, a development model design and development model are formulated. Then a group discussion is held to validate the design of the initial model. The next step is to make improvements to the model based on the results of the discussion of the group to produce a hypothetical model. The results showed that the acceptance of ICTs had a positive and significant effect on the effectiveness of school management in Open Junior High Schools (SMPT) in DKI Jakarta. While perceptions of ease of use of ICTs have a very low effect on perceptions of uses, attitudes to use ICTs, and behavioral intentions in using ICTs in Open Junior High Schools (SMPT) in DKI Jakarta, although the influence exerted remains positive and significant. Based on this, there is a need for reform and repositioning of perceptions and attitudes in the use of ICTs. Abstrak Keberhasilan penerimaan (adopsi) Teknologi Informasi dan Komunikasi (TIK) dalam manajemen pendidikan ditentukan oleh aspek teknologi dan organisasi. Aspek teknologi yang dimaksud adalah perilaku pengguna yang meliputi persepsi terhadap kegunaan dan kemudahan TIK, sikap, niat, dan penggunaan yang sebenarnya. Sedangkan aspek organisasi merupakan kemampuan manajemen untuk mengembangkan penerapan TIK untuk mendukung fungsi manajemen sekolah. Penelitian ini bertujuan untuk mengembangkan model penerimaan TIK dalam meningkatkan manajemen sekolah. Inovasi baru dalam pengembangan model penerimaan TIK di SMP Terbuka dilakukan melalui survei di 29 SMP Terbuka yang ada di DKI Jakarta dengan responden sebanyak 178 orang guru. Studi kepustakaan dan kajian empirik melalui observasi dilakukan untuk menghasilkan temuan model faktual pemanfaatan TIK di SMP Terbuka yang menjadi sasaran. Berdasarkan model faktual tersebut kemudian dirumuskan desain model pengembangan dan menyusun perangkat model. Selanjutnya dilakukan kegiatan diskusi kelompok terpumpun untuk memvalidasi desain model awal. Langkah berikutnya adalah melakukan perbaikan model berdasarkan hasil diskusi kelompok terpumpun tersebut untuk menghasilkan model hipotetik. Hasil penelitian menunjukkan bahwa penerimaan TIK berpengaruh secara positif dan signifikan terhadap efektifitas manajemen sekolah di Sekolah Menengah Pertama Terbuka (SMPT) di DKI Jakarta. Sedangkan persepsi kemudahan dalam penggunaan TIK berpengaruh sangat rendah terhadap persepsi kegunaan, sikap untuk menggunakan TIK, dan niat perilaku dalam menggunakan TIK di Sekolah Menengah Pertama Terbuka (SMPT) di DKI Jakarta, meskipun pengaruh yang diberikan tetap positif dan signifikan. Berdasarkan hal tersebut perlu adanya reformasi dan reposisi persepsi serta sikap dalam penggunaan TIK.
This study aims to determine the status of the cable condition to the emergence voltage of Partial Discharge, as well as the status of the cable to discharge the Partial Discharge. Measurements were made at PT PLN (Persero) UP3 Menteng on TD 09-PM 4A Segment Goat Feeders. This research uses a descriptive method. This study carried out measurements of the release of charge and voltage at each phase in the segment. After measuring the discharge of a single segment, data analysis is then performed to determine the value of Partial Discharge, then the value is accumulated to conclude the condition of cable failure risk that refers to standards set by PLN.The results showed that the status of the cable to the voltage appears Partial Discharge. PDIV value of 17.3 kV can be interpreted PDIV> Uo. PDEV value of 8 kV, can be interpreted PDEV <U0. So that PDIV> U0 and PDEV <U0 fall into the category of cable status quite poorly with Point 2. Cable Status Against Load Discharge. PD max and PD Level values range below 500 pC. So that the load can be interpreted as below or equal to 500 pC, Y <500 pC or Y = 500 pC in the cable status category either with point 1. If pont 2 and point 1 are added up then the result is point 3. Point 3 can be concluded with dark green . The risk of cable failure in the TD 09 to PM 4A segment is low and the cable status is quite good. The follow up is that within a period of 12 months, this segment must be re-measured to determine the condition of the risk of cable failure. ABSTRAK Penelitian ini bertujuan untuk untuk mengetahui status kondisi kabel terhadap tegangan munculnya Partial Discharge, serta status kabel terhadap pelepasan muatan Partial Discharge. Pengukuran dilakukan di PT PLN (Persero) UP3 Menteng pada Penyulang Kambing Segmen TD 09-PM 4A. Penelitian ini menggunakan metode deskriptif. Penelitian ini dilakukan pengukuran pelepasan muatan dan tegangan pada setiap fasa pada segmen tersebut. Setelah dilakukan pengukuran pelepasan muatan satu segmen maka selanjutnya dilakukan analisis data untuk mengetahui nilai Partial Discharge kemudian nilai tersebut diakumulasikan hingga menjadi kesimpulan kondisi resiko kegagalan kabel yang mengacu pada standar yang telah ditentukan oleh PLN. Hasil penelitian menunjukkan bahwa status kabel terhadap tegangan muncul Partial Discharge. Nilai PDIV sebesar 17,3 kV perfasa dapat diartikan PDIV > Uo. Nilai PDEV sebesar 8 kV perfasa, dapat diartikan PDEV < U0. Sehingga PDIV > U0 dan PDEV < U0 masuk kategori status kabel cukup buruk dengan Point 2. Status Kabel Terhadap Besar Pelepasan Muatan. Nilai PD max dan PD Level berkisar dibawah 500 pC. Sehingga dapat diartikan besar muatan dibawah atau sama dengan 500 pC, Y < 500 pC atau Y = 500 pC masuk kategori status kabel baik dengan point 1. Jika pont 2 dan point 1 dijumlahkan maka hasilnya poin 3. Poin 3 dapat disimpulkan dengan warna hijau tua. Resiko kegagalan kabel pada segmen TD 09 to PM 4A adalah rendah dan status kabel tersebut cukup baik. Tindak lanjutnya yaitu dalam jangka waktu 12 bulan, segmen ini harus kembali diukur untuk mengetahui kondisi resiko kegagalan kabel.
This study aims to determine: (1) Correlation between internal locus of control with work readiness, (2) Correlation between adversity quotient with work readiness, (3) Correlation between internal locus of control and adversity quotient with work readiness student of class XII TITL at SMK Negeri 34 Jakarta. The population of respondents is student of class XII TITL at SMK Negeri 34 Jakarta. The sampling technique uses a type of non-probability sampling that is saturated sampling technique, the research sample is students of class XII TITL 1 and TITL 2, total 61 students. Data collection using a questionnaire / questionnaire. The results of the analysis prerequisite analysis say that the research data are linear and normally distributed. Testing the research hypothesis using the product moment correlation test. The results of testing this research hypothesis can be seen from the correlation value ryx1 = 0.664, ryx2 = 0.665, ryx1x2 = 0.722 with rtable = 0.252 (rcount> rtable 5%), meaning that the research hypothesis can be said to prove that (1) there is a positive correlation between locus of control internal with work readiness, (2) there is a positive correlation between adversity quotient and work readiness, (3) there is a positive correlation between internal locus of control and adversity quotient simultaneously with work readiness student of class XII TITL at SMK Negeri 34 Jakarta. With this result, it can be concluded that the higher the level of internal locus of control and the quotient of student adversity, the work readiness that will be possessed by students of class XII of the Electrical Power Installation Engineering Program at SMK Negeri 34 Jakarta will also be high. Abstrak Penelitian ini bertujuan untuk mengetahui (1) Hubungan locus of control internal dengan kesiapan kerja, (2) Hubungan kecerdasan adversitas dengan kesiapan kerja, (3) Hubungan locus of control internal dan kecerdasan adversitas dengan kesiapan kerja siswa kelas XII TITL di SMK Negeri 34 Jakarta. Populasi responden adalah siswa kelas XII TITL di SMK Negeri 34 Jakarta. Teknik sampling menggunakan jenis non probability sampling yaitu teknik sampling jenuh, maka sampel penelitian adalah siswa kelas XII TITL 1 dan TITL 2 yang berjumlah 61 siswa. Pengumpulan data menggunakan kuisioner/angket. Hasil pengujan prasyarat analisis mengatakan bahwa data penelitian bersifat linear dan berdistribusi normal. Pengujian hipotesis penelitian menggunakan uji korelasi product moment. Hasil pengujian hipotesis penelitian ini terlihat dari nilai korelasi ryx1= 0,664, ryx2= 0,665, ryx1x2= 0,722 dengan rtabel= 0,252 (rhitung > rtabel 5%), artinya hipotesis penelitian dapat dikatakan terbukti bahwa (1) terdapat hubungan yang positif antara locus of control internal dengna kesiapan kerja, (2) terdapat hubungan yang positif antara kecerdasan adversitas dengan kesiapan kerja, (3) terdapat hubungan yang positif antara locus of control internal dan kecerdasan adversitas secara simultan dengan kesiapan kerja siswa kelas XII TITL SMK Negeri 34 Jakarta. Dengan hasil ini, maka didapatkan kesimpulan bahwa semakin tinggi tingkat locus of control internal dan kecerdasan adversitas siswa maka kesiapan kerja yang akan dimiliki siswa kelas XII Program Kejuruan Teknik Instalasi Tenaga Listrik di SMK Negeri 34 Jakarta juga akan tinggi.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.