Nam Pha Gnai

SALIENT FEATURE

LOCATION:

LONG CHAENG DISTRICT, XAYSOMBOUN PROVINCE, LAOS PDR

DAM TYPE: RUN-OFF, CONCRETE GRAVITY  

DAM DIMENSION: 65m (H) x 47m (L) x 160m (W)

SPILLWAY SIZE: 90m (W)

SLUICE GATE SIZE: 10m (W) x 7m (H)

GATE TYPE: VERTICAL ROLLER GATE

INTAKE SIZE: 3.4m  (W) x 3.75 (H)

HEAD RACE TUNNEL (HRT) LENGTH: 1,250m

HEAD RACE CANAL LENGTH: 5,085m

FORBAY SIZE: 77m  (L) x  10.6m (W)  

PENSTOCK TYPE: BURIED, SPIRAL WELDING

PENSTOCK LENGTH: 240m

RATED HEAD: 112.14m

POWERHOUSE TYPE: OVER-GROND WITH TAILRACE 

INSTALLED CAPACITY:

19.2MW (2 x 7.4MW  + 1 X 4.4MW)

TURBINE TYPE: HORIZONTAL FRANCIS

CONNECTION: 115KV EDL GRID TO THOUNGKHOUN 2 SUBSTATION, 

XAYSOMBOUN PROVINCE

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