Minggu, 26 Oktober 2008

Technical Data

The description on Riam Kanan Hydro Electric Project in Kalimantan (Indonesia)

Location      : South Kalimantan, Indonesia

Nearest City: Banjarbaru and Martapura (25 km West)

River          : Riam Kanan, a tributary of Barito

Purpose      : Hydoelectric Power generation,

                    flood control and irrigation water supply

Period of Construction:

  • 1962-1964 - Feasibility study, Engineering design
  • 1964-1966 - Site development including Access road to site
  • 1966-1973 - Main works (Dam, Waterways, Power
  • plant,Transmission lines and Substations)

 


Reservoir :

  • Catchment Area               :  1,043 km2 
  • Gross storage capacity      : 1,200 Million m3
  • Effecxtive storage capacity:    600 Million m3
  • Reservoir area                 :      92 km2
  • Highest water level           :  EL 60.00 m
  • Lowest water level            :  EL 52.00 m
  • Flood water level              :  EL 63.00

Dam :

  • Type                              :  Earthfill
  • Height                            :  57 m
  • Volume                          :  670,000 m3
  • Crest elevation               :  EL 66.00
  • Crest length                   :  195 m           

Spillway :

  a. Service Spillway

  • Type                               : Morning Glory
  • Discharge capacity           : 500 m3/sec
  • Tunnel diameter               : 6.00 m
  • Tunnel length                   :  210 m

   b. Emergency Spillway

  • Type                               :  Open channel
  • Discharge capacity            :  250 m3/sec

Headrace Tunnel :

  • Length                             :  270 m
  • Diameter                         :   4.80 m

Generation plant :

  • Turbine type                    :  Francis, vertical shaft
  • Generator type                :  Semi umbrella
  • Capacity, first stage         :  2 x 10,000 kW
  • Capacity, final stage        :  3 x 10,000 kW
  • Gross head maximum      :  49.5 m
  • Gross head minimum       :  41.5 m
  • Rated head                     :  39.8 m
  • Discharge, first stage       :  58 m3/sec
  • Discharge, final stage      :  87 m3/sec     


 

Switchyard

 

70 kV Transmission Line :

  • Circuit, first stage           :  Single
  • Circuit, final stage          :  Double
  • Conductor                     :  ACSR 120 mm2
  • Length                          :  52 km
  • Total steel tower            :  152 tower 

70 kV Cempaka Substation :

  • Type                            :  Outdoor, conventional
  • Transformer capacity  : 1 x 3,000 kVA first stage
  • Transformer capacity  : 1 x 6,000 kVA final stage

70 kV Banjarmasin Substation :

  • Type                            :  Outdoor, conventional
  • Transformer capacity  :  2 x 6,000 kVA first stage
  • Transformer capacity  :  1 x 6,000 kVA final stage

 

Owner                  : PT PLN (Persero)

                              State Electricity Corporation

Engineering Consultant : Nippon Koei Co. Ltd (Japan)

Construction by  :

  • Main works (Dam, Power House and Site Facilities:  by Force account, supervized by Hazama Gumi (Japan)
  • Metal works (Gates, Penstock, Surge Tank):   Nippon Kokkan (Japan)
  • Generating Equipment: Fuji Electric (Japan), Toyomenka (Japan)                                                        
  • Transmission Line and Substations: PT Wijaya Karya (Indonesia)

                                                         

Aranio

Lokasi proyek PLTA Riam Kanan terletak di desa Arinawai, Kecamatan Karang Intan, Kabupatren Martapura. Perubahan nama menjadi Aranio tidak diketahui dengan pasti, mungkin penyesuaian dengan 'lidah' Jepang yang turut membangun sebagai Konsultan dan Kontraktor Utama.

Untuk menuju lokasi dari Banjarbaru, diperlukan waktu kl setengah sampai 1 jam untuk menempuh jarak 25 km. Setelah mengambil jalan lurus di Simpang Empat (kiri: ke Martapura, kanan: ke Cempaka), akan dilewati Markas Batalyon Raiders, kemudian Mandiangin salah satu tempat wisata. Sebelum memasuki lokasi Proyek, akan dilewati Pos Keamanan di Awangbangkal kemudian Quarry site Tambela, daerah perumahan karyawan (Asrama), barulah berbelok ke kiri menuju Kantor Proyek.

Kantor Proyek terdiri dari dua bangunan, sebelah kiri kantor Konsultan Nippon Koei dan sebelah kanan kantor Proyek PLTA Riam Kanan. 

Jam kerja 08.00 - 16.00, dan antara 12.00-13.00 istrirahat.


Construction of Power Station 

 

Construction of Pressure Tunnel


 The last embankment of Main Dam


Construction of Coffer Dam 

 

History of Riam Kanan Project

  • Nov 1958 -0 Jan 1959: Preliminary Survey
  • Jan 1961 - July 1962: Site Investigation
  • December 1962: Preparation of Design Report
  • Oct 1963 - March 1964: Construction of access road from Banjarbaru (length 25 km) and Project facilities
  • Apr 1966 - Oct 1968: Construction of Diversion tunnel (length 220 m, dia 6.00 m)
  • March 1969 - March 1972: Construction of Head race tunnel (length 270 m, concrete lining dia 4.80 m
  • July 18, 1969: Riam Kanan river flow diversed through Diversion tunnel with the construction of temporary Cofferdam
  • August - Oct 1969: Cleaned up the river bed and constructed the Cofferdam
  • January 1970: Foundation of Power statioin was started
  • 1970: Construction of 70 kV Transmission line, 70 kV Cempaka and Banjarmasin Substations, 6 kV Sub-transmission line were started
  • July - Dec 1970: Construction of Main dam, first stage up to level EL 40.00
  • May - Oct 1971: Embankment of Main dam, final stage
  • Dec 1971: Construction of Gates, Penstocks and Turbine Generators were started simultaneously
  • June 30, 1972: Closing of Diversion tunnel to fill up the Reservoir. It needed six months to reach the minimal water level and started the Turbine Generators commisioning
  • March 1973: The net head EL 52.50 reached, Turbine generator No 1 and No 2 were tested in full load.
  • March 29, 1973: Trial operation of Riam Kanan system consist of Generation equipment, transmission lines and substations were successful, and electric energy flowed to Banjarbaru, Martapura and Banjarmasin cities.

 

Important Date

  • Oct 17, 1971: The final embankment of Main Dam by Minister of Public Works, Mr Ir Soetami
  • July 17, 1972: Beginning of Main Dam and Reservoir utilization were inaugurated by Minister of Public Works, Mr Ir Soetami
  • April 30, 1973: Inauguration of Riam Kanan Project by the President of Republic of Indonesia, Mr Soeharto


 

Aerial Photo of Riam Kanan, 2007 

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