At this present time increasing electrical energy requirements, and therefore found the latest energy is solar energy. Solar energy can be harnessed as a potential alternative energy source because the energy is very large as well as environmentally friendly. Tool that can be used to convert sunlight directly into electricity is called photovoltaic. On the control panel to control the water pump on the motor control circuit design life turns automatically and manually. To control the timing of the displacement of the pump used to pump two timers. On the control panel of diesel propulsion sell used four times the displacement step. Switching time between steps in the set by a timer. The control panel uses the same circuit with the motor circuit alternating rounds.
ABSTRAKDaerah Taram merupakan daerah pelayanan listrik PT PLN (Persero) Rayon Lima Puluh Kota. Feeder Taram ini, sering mengalami gangguan fasa ke tanah yang dapat menyebabkan penyaluran listrik ke daerah Taram tidak lancar. Sesuai dengan rekapitulasi laporan harian gangguan JTM pada bulan Juni 2015, gangguan satu fasa ke tanah sudah tercatat sampai 27 kali gangguan. Dari keseluruhan outgoing feeder di GH Tanjung Pati, Feeder taram inilah yang paling sering mengalami gangguan satu fasa ke tanah yakni 12 kali gangguan.(Sumber : Area Payakumbuh)Upaya untuk mengatasi gangguan satu fasa ketanah sudah dilakukan tetapi gangguan tersebut masih sering terjadi. Upaya selanjutnya yaitu dengan melakukan penyettingan relai ulang karena nilai setting arus GFR disisi outgoing GH Tanjung Pati Feeder Taram kurang efektif. Setting relai hasil analisa yang terdapat pada analisis perbandingan hasil perhitungan dengan data lapangan, untuk mengkordinasikan sekaligus mempercepat respon jika terjadi gangguan. Resetting relai, data settingan relai lama (data lapangan) GFR Feeder Taram pada tanggal 19 Januari 2015 dengan Io 0,20 A dengan TMS 0,05(tanpa satuan). Data settingan relai baru berdasarkan perhitungan tanggal 5 September 2015 dengan Io 0,19 A dengan TMS 0,05(tanpa satuan).
Kata kunci : GFR, gangguan satu fasa ke tanah, setting relai
His dedication is motivated by the enactment of the 2013 Curriculum in Indonesia which includes students being required to be able to have critical thinking skills or HOTS. The 2013 curriculum prioritizes learning materials that are given to students up to the metacognitive stage which requires students to be able to predict, design, and predict. This has been explained in the Appendix to Permendikbud Number 21 of 2016, that the dimensions of knowledge based on Bloom's Taxonomy are classified into factual, conceptual, procedural, and metacognitive whose mastery needs to start from the elementary level to the secondary education level. The mechanism of the service method in carrying out activities in general is in the form of planning/preparation, implementation, observation and evaluation, and reflection.
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