Ranjit Sagar Dam

The Ranjit Sagar Dam ( Ranjit Sagar Dam in English, too: " Thein Dam " ) is a large multi-purpose dam on the River Ravi, 24 km upstream of Madhopur, in North India. The building is part of a plan for the use of the water of the three rivers Satluj, Beas and Ravi for irrigation and hydropower generation.

The Ranjit Sagar Dam is situated in a gorge of the Ravi near the village in the state of Jammu and Kashmir Thein in a seismically active zone of the Himalayas, the Shivalik mountain range. The project is a joint project of the States of Jammu and Kashmir, Punjab and Himachal Pradesh, at their joint borders of the reservoir is located. An intergovernmental agreement between these countries was signed in 1979, was what started executing. The main work has been carried out in sections.

The dam is the highest rockfill dam with earth core in India and currently the second highest dam (after the Tehri Dam ) and the seventh-highest total dam in India.

The project includes the following notable details:

The hydroelectric power plant has four (vertical ) Francis turbines with 150 MW, 600 MW. The height varies from 76.0 to 121.9 m. It is the sixth largest hydropower plant in India; the individual turbines are the second largest in India.
The dam is said to have the longest Hochwasserentlastungsgerinne in Asia. The four studs made of reinforced concrete (T- 1, T- 2, P -1 and P-2) have a diameter of 12 m, a length of 4 km. For the spillway concrete 26 million m³ of rock had excavated ( also a record for India) and about 1 million cubic meters of concrete are used. The seven radial gates are 15.57 m by 17.20 m tall.
At the spillway, a ventilation has been installed, which is designed to prevent cavitation, as the water here flows at a speed of 162 km / hr.
The clear width of the inlet spillway is 109 m at an altitude of 511.7 m above sea level. It is designed for a discharge rate of 20,678 m³ / s; a total of 24,637 can m³ / s to be removed.
For water removal, there are nine vertical to 126 m deep shafts.
For power plant performs a 1- km long penstock with 8.5 m diameter.
In the building, underground, below the spillway and on the slopes, there are patrols of 6 km length. Such a passage under an embankment dam has been built here for the first time in India.

Indian Prime Minister Atal Bihari Vajpayee has the dam on 4 March 2001 inaugurated near the villages of Pathankot and Gurdaspur district in Punjab in Shahpurkandi by pressing a button. The impoundment of the reservoir began on 15 February 1999 and the first electricity was produced from August 2000.

The dam Ranjit Sagar has been named after Maharaja Ranjit Singh, a famous ruler of the Punjab. The reservoir behind the dam extends over 22 km with a maximum width of 5 km and a depth up to 130 m. The usable storage capacity is 2.344 billion cubic meters, the entire storage space 3.28 billion.

Other uses of the dam next to the energy are: water supply for industry and agriculture, industrial development, flood control, fisheries, land reclamation in the valley, development of tourist destinations, economic recovery and more.