Pakistan - Tarbela Power Station

ANDRITZ HYDRO won a contract from Pakistan’s Water and Power Development Authority (WAPDA) for the supply of static excitation systems for six units at the Tarbela Power Station.

HPP Tarbela Power Station, located on the Indus River about 50 km northwest of the capital Islamabad, was first finalized in 1976. Its dam is one of the largest earth-filled dams in the world and also second largest by structural volume, creating an impressive reservoir with a surface area of approximately 250 m2. The total installed capacity of HPP Tarbela Power Station is 3,478 MW.

Currently, the secondary equipment is subject to an entire refurbishment including modernization of the excitation systems, slip ring assembly, and auxiliary systems. In 2014, ANDRITZ HYDRO refurbished the static excitation systems of the units #5 and #6.

Now the existing rotating exciter units #1–#4 will be replaced by static excitation systems. At units #7 and #8 the existing static excitation systems will be replaced by new ones.

Both orders for units #1–#4 as well as for units #7 and #8 confirm the excellent reputation of ANDRITZ HYDRO within the Pakistani hydropower market. All six units will be commissioned sequentially, starting in 2016.

Technical data

Output:(Unit #1 – #4) 4 x 206 MVA
(Unit #7 – #8) 2 x 184 MVA
Voltage:13.8 kV
Head:127 m
Speed:136.4 rpm
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