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Odisha Hydro Power Corporation Ltd.

A Gold rated State PSU( A Govt. of Odisha Undertaking )

Powering Green Energy
Sh Hemant Sharma, IAS
Commissioner-cum- Secretary to Govt.,
Deptt of Energy, Chairman-cum-Managing Director,
OHPC Ltd.

Rengali (Water Turbine)

Number 5 (Five)
Type Kaplan Vertical
Make BHEL,India
Net Head Maxl. Head - 46.5 Mts. Minimum - 28 Mts
Rated 40 Mts.
Design head 40 Mts.
Turbine Capacity 53MW

Horizontal Shaft turbine Capacity at 25.25 Min & 42.0 Mtr Head (House Service Set)

750 HP
Speed (50 MW Machine) Normal Speed - 166.7 rpm
Runaway Speed - 350 rpm x 395
Efficiency (House Service Set)
Head
Full Load
3/4 Load
1/2 Load
25.25 M
89.0
88.8
83.0
36.0M
87.8
82.0
74.0
42.0
83.0
78.0
70.0
Factor of Safety 1.5
Rise of speed due to sudden load throw From Full load:30%
form 1/2 load: 22%
Time of gate closing for load throw Full: 3.0 Sec
1/2: 2.1 Sec
Momentary drop in speed on increasing load. From 0 - full : 35%
From 0 - 1/2 : 22%
Time of gate opening from zero to full load 6sec.
Total fly wheel effect of complete H.G set at 1000 rpm 500 sq.mm
Shaft material & dia Alloy steel 135 mm
No of wicked gates (guide vane) 12
Governor

i) Sensitivity 0.01%
ii) Speed drop characteristic 0 to 6 %
iii) Range of speed level setting (+ -) 15%
iv) Range of adjustment of gate opening time/ closing time
(+ -) 25%
v)Main servo motor rating 240 Kg. Mtr.Oil Pressure 6Kg/sq.cm