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All Journal Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Jurnal Rekayasa elektrika
Edy Hamdani
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Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering

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Analisa Proteksi Arus Lebih Gangguan Tanah Pada Feeder Gardu Induk Garuda Sakti Grace Arisantha; Edy Hamdani
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

There are a lot of disruption in the distribution of electrical energy which can result in interruption of the power supply to the load. It is necessary for the protection or security system that is reliable to anticipate when an interruption occurs. Protection system serves to separate the problematic parts with which is not for the system to remain operational.Usually 20 KV feeder outages caused by short circuit. Total blackout (black out) can occur when setting the relay or in this study were discussed Ground Fault Relay (GFR) on the incoming or outgoing unfavorable. For that one effort that can be done is to analyze the protection relay settings, so that mutually coordinated well and is expected if an interruption in one of the feeder it will not make black out the other.From the research, the high short-circuit fault current is influenced by the distance of the point of interruption, the greater the distance the point of interruption, the smaller the short circuit fault current and vice versa. Where it is known from the analysis set Ground Fault Relay (GFR) at 20 KV incoming side has a delay of work, so do resetting on the incoming side by setting the delay time becomes 0.28 seconds.Keywords : Ground Fault Relay, short circuit, one phase to ground
Portable Battery Charger Berbasis Sel Surya Budhi Anto; Edy Hamdani; Rizki Abdullah
Jurnal Rekayasa Elektrika Vol 11, No 1 (2014)
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (786.573 KB) | DOI: 10.17529/jre.v11i1.1991

Abstract

A type of solar battery charger is introduced in this paper. This equipment functions as a medium size rechargeable battery that is needed to move culinary merchants and coastal fishermen living in area which is not supplied by electrical networks. The equipment consists of solar module mounted onto portable mechanical construction, a 12-V 7.5-Ah lead acid battery and charge controller. Solar module charges the battery through charge controller and then the battery can be discharged to power on electric lamps for lightening culinary wagon or fisherman’s boat at night. Charge controller charges the battery with float charging which is implemented by maintaining 13.5 Volt between battery terminals and limiting the charging current to 1.5 Amperes. Charge controller circuit is based on adjustable linear voltage regulator LM338. The battery is of sealed lead acid type. This type of battery is maintenance free and more hygiene than other types of lead acid battery. The field experiment of charging the baterry of 50% residual capacity from 8 am to 4 pm under sunny weather shows that the solar module has charged the battery to its full capacity under battery safe charging conditions.Keywords: portable solar battery charger, float charging, LM338
Portable Battery Charger Berbasis Sel Surya Budhi Anto; Edy Hamdani; Rizki Abdullah
Jurnal Rekayasa Elektrika Vol 11, No 1 (2014)
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17529/jre.v11i1.1991

Abstract

A type of solar battery charger is introduced in this paper. This equipment functions as a medium size rechargeable battery that is needed to move culinary merchants and coastal fishermen living in area which is not supplied by electrical networks. The equipment consists of solar module mounted onto portable mechanical construction, a 12-V 7.5-Ah lead acid battery and charge controller. Solar module charges the battery through charge controller and then the battery can be discharged to power on electric lamps for lightening culinary wagon or fisherman’s boat at night. Charge controller charges the battery with float charging which is implemented by maintaining 13.5 Volt between battery terminals and limiting the charging current to 1.5 Amperes. Charge controller circuit is based on adjustable linear voltage regulator LM338. The battery is of sealed lead acid type. This type of battery is maintenance free and more hygiene than other types of lead acid battery. The field experiment of charging the baterry of 50% residual capacity from 8 am to 4 pm under sunny weather shows that the solar module has charged the battery to its full capacity under battery safe charging conditions.Keywords: portable solar battery charger, float charging, LM338
Co-Authors Budhi Anto Grace Arisantha Rizki Abdullah