BY:
Rahmat TAHER NASUTION (5132131008)
Wijaya all (5132131018)
SYAHMULIA (5132131012)
Imam Shafi'i (5132131005)
MOSES Sutan HASIBUAN (5133331033)
EDUCATION DEPARTMENT OF ELECTRICAL ENGINEERING
FACULTY OF ENGINEERING
FIELD STATE UNIVERSITY
2015
TABLE OF CONTENTS
Introduction i
Daftar Isi ii
CHAPTER I INTRODUCTION
1.1. Background
1.2. Formulation of the problem
1.3. Observation destination
1.4. Location Observation
1.5. Observation time
1.6. Operator
CHAPTER II RESULTS AND DISCUSSION
CHAPTER III CLOSING
3.1. Conclusion
3.2.Saran
DOCUMENTATION
Bibliography
BAB I
PRELIMINARY
- Background
Hydropower Sigura Gura began construction in May 1978 and was completed in December 1981, Dam-Gura Sigura manifold structure Concrete Gravity dam with a height of 46 meters from the base of Asahan River, with a volume of 6.14 million m 3. The dam was built by the Japanese is used as a power plant for Aluminium Factory (INALUM) .Waduk Sigura-Gura called Sigura-Gura dam is a dam which is located 23.3 km from upstream Asahan River (Lake Toba), or 8.8 km of Dam Siruar or 1 km downstream from Niagara Sigura-Gura. This dam is the largest dam in Indonesia after the dam Sutami. The dam serves to ensure the availability of water and the large volume of water needed energy for power generation in hydropower Sigura-Gura.
- Formulation of the problem
In this report the author discusses hydropower component Sigura-Gura from Dams, Tunnels, substation and Control (Settings on hydropower).
- Observation destination
The purpose of this observation is:
- Fulfill the task subjects Electric Power System Planning.
- Knowing and Seeing direct existing equipment Hydroelectric Sigura-Gura
1.4. Location Observation
In this observation, the authors took place in hydropower Sigura-Gura.
1.5. Observation time
The authors have conducted observations during the day. Time used are:
Day: Thursday
Date: May 7, 2015
At: 08:00 s / d 11:30 pm and 14:00 s / d 15:30 pm
1.6. Operator
BAB II
RESULTS AND DISCUSSION
Hydropower component Sigura-Gura
1. Reservoir (Dam)
Began construction in May 1978 and was completed in December 1981, Dam-Gura Sigura manifold structure Concrete Gravity dam with a height of 46 meters from the base of Asahan River, with a volume of 6.14 million m 3. The dam was built by the Japanese is used as a power plant for Aluminium Factory (INALUM).
Reservoir Sigura-Gura called Sigura-Gura Dam is a dam which is located 23.3 km from upstream Asahan River (Lake Toba), or 8.8 km from the dam Siruar or 1 km downstream from Niagara Sigura-Gura. This dam is the largest dam in Indonesia after the dam Sutami. The dam serves to ensure the availability of water and the large volume of water needed energy for power generation in hydropower Sigura-Gura.
This dam is located in Siruar, ± 14.5 km from Porsea. The dam controls the stability of water out of Lake Toba to the Asahan river to supply water to the power station Siguragura of 107 m3 / sec. The dam serves as a stable source of water for the power station Siguragura, located in Simorea, 1 km upstream waterfall Sigura-Gura or 9 km downstream of the dam manager. The dam is 47 m high and 154 m back.
Scalper Dam Water Siguragura (Siguragura Intake Dam) located in Simorea and serve as a stable source of water for the power station Siguragura. The stored water in the dam is used in power generation station Siguragura (Siguragura Power Station) which is 200 m in the bowels of the earth with four generator units and the total capacity of the remains of a fourth generator are 203 MW and an underground hydroelectric power in Indonesia. This dam is a type of mass concrete with a height of 47 meters.
Gambar. 1 Bendungan sigura_gura
Sluice is one component of the equipment this dam which serves as a regulator of the flow of water in the dam sluice gates will be opened at the time of discharge of water in the dam had crossed the line water discharge is determined in order to avoid water pressure is very big into the tunnel and so that the water does not overflow into the tunnel to rotate the turbine and when 2 hours before the floodgates opened then the INALUM will make an announcement to the environment around the river shavings in order to avoid things - things that are not in want and gates are often opened during hujandimana season when rainfall is increasing.
Pictures. 2. The floodgates hydropower Sigura-Gura
Regulator sluice
Regulator sluice gates are a few tools that control the floodgates to open and close even measure water flow. In January-Gura hydropower Sigura remove water as much as 240 tons / s because of water in the dam had crossed a predetermined threshold. regulator sluice peralatanya consists of the following components:
- Lever
Lever serves to be one regulator floodgates to be opened and closed and the lever is equipped with several motors - electric motors that are useful to rotate the rope to open or close the gate and in addition to the electric motor lever is also equipped with various tools others such as the coil of rope that is designed to pull the load and also features some pulley and others - others.
Fig.3 adjustment lever
- Indicator
Where this indicator is a sign or result in the waste water discharge in order to be able to provide information about the water that is wasted and so that the door can be closed again when the water has reached the water discharge that has been specified.
Pictures. 4 Indicators
2.Terowongan
Sigura-Gura hydropower scheme with tunnel
Pictures. 5 Scheme Sigura-Gura hydropower tunnel
From the above scheme can be explained in more detail because the picture above describes the flow of water from the turbine shaft to rotate within 200 inside the Earth and the subsequent trip to the plant where most of the way toward the center of the tunnel-shaped plant whose length reaches 285 m. wherein the image above a vertical line down the blue is where the flow of water and the brown is a tunnel and lift.
Connecting Tunnel Access Tunnel
Connecting Tunnel Access Tunnel is the entrance or connecting through point-peralata underground equipment such as generator.Terowongan serves as the entry and exit transport large equipment to be repaired or diganti.Terowongan also serves as a way for the tour that will see equipments- tanah.Panjang generation equipment in the tunnel is 908 meters from the entrance to the entrance of the room generator.Pelaksanaan construction of a connecting road is done in June 1977 and completed respectively in June and December 1978.
3.Kontrol or Settings In Sigura Gura hydropower.
BAB III
CLOSING
3.1. Conclusion
Scalper Dam Water Siguragura (Siguragura Intake Dam) located in Simorea and serve as a stable source of water for the power station Siguragura. The stored water in the dam is used in power generation station Siguragura (Siguragura Power Station) which is 200 m in the bowels of the earth with four generator units and the total capacity of the remains of a fourth generator are 203 MW and an underground hydroelectric power in Indonesia
3.2.Saran
Hopefully, from the observation and description that we have just described can help in the understanding of hydropower Sigura Gura and add insight on Power System Planning course Listrik.Dari many explanations This paper will be a shortage, and therefore we as presenters apologize and accept any criticism and suggestions for the perfection of this work.
DOCUMENTATION
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