HYDROPOWERPLANT NUREK, TAJIKISTAN

The 300 meter Nurek Dam is the tallest in the world. It is an earth fill embankment dam on the Vakhsh River in Tajikistan in Central Asia. Nurek HPP is the largest hydropower station in the region with an installed generation capacity of 3 gigawatts (GW) producing over 75% of Tajikistan's electricity. It is a multipurpose project comprising several functions including power generation, the frequency regulation of central Asian networks and irrigation supply for downstream countries such as Uzbekistan and Turkmenistan. During 2011 and 2012 the 220 kV GIS was replaced. Aspecto won the contract to finalize the commissioning and to monitor the first stage of operation. This work included the energizing of an auto-transformer 500kV/220kV/10kV and a 220 kV line The protection system on site used MiCOM relays P120-122P139, P141-144, P433, P547, P631-633, P741-743.

COMMISSIONING@ HYDROPOWERPLANT NUREK, TAJIKISTAN – AT A GLANCE

Systems:
  • Overcurrent Protection MiCOM P120-122, P139, P141-144
  • Distance Protection MiCOM P433
  • Phase Comparison Protection Micom P547
  • Differntial Protection Micom P631-633
  • Busbar Protection P741-743