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Hydroplant > Dam > Flashcards

Dam Flashcards

1
Q

FRL & MDDL of C-3 dam

A

1397m & 1380m

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2
Q

FRL & MDDL of C-2 dam

A

1162m & 1152m

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3
Q

Gross & live storage as per 2022

A

2.98 Mcum & 2.61 Mcum

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4
Q

RESERVOIR LENGTH

A

3Km

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5
Q

CPS2 dam to CPS3 dam along river distance

A

24Km

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6
Q

Knife edge valve at d/s has dia of

A

600mm

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7
Q

Dam dimension & type

A

Concrete gravity dam
length 73m
height from river bed 55m
height from deepest foundation 64m

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8
Q

Design flood cumec

A

11400cumec

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9
Q

Radial gate size& weight

A

3x nos
12.5 x 16.5
weight of each gate 415MT
hydraulic hoist cap 760 T(2x 380T)

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10
Q

Vertical gate size & weight

A

10m x 15.75m assembly of 5
weight 112MT
hoist cpacity 180T
wheel assembly 20 (10 on each side)

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11
Q

Stop log gate

A

top unit 12.5m x 2.8m wt 43T
interchangeable unit 12.5 x 2.5 wt 36T
hoist capacity 60T

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12
Q

Intake

A

2nos
EL 1369m ?top or bottom
5m x 5m
40m u/s of dam

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13
Q

Time taken for water from CPS2 dam to CPS3 dam at 200cumec & 2000cumec

A

2hour & 1hour

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14
Q

Dam catchment area

A

2203 sq km

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15
Q

Intake tunnel

A

2nos
5m horse shoe
length 250m/330m
Discharge 78.42 cumec

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16
Q

Desilting

A

Dufour type
2nos parallel compartment
particle greater than 0.3mm removed

17
Q

SFT

A

2nos
gate in each tunner 2nos (service & emergency)

18
Q

HRT

A

size 6.5m horse shoe
15.97Km
dicharge 130.6 cumec
velocity 3.73 m/s

19
Q

Adits

A

I 160m
II 193m
III 215m
IV 103m
V 64m
VI (partA and partB) 536m

20
Q

Surge Shaft

A

Dia 18m, Length 105m
Top elevation 1430m
Bottom elevation 1318m

21
Q

Pressure shaft

A

01 nos circular reinforced concrete
dia 5.8m, length 435m

22
Q

Adit to pressure shaft bottom

A

dia 7m D shape
length 160m

23
Q

Penstock

A

03nos
dia 3m each, length 25 to 50m

24
Q

Turbine axis elevation

A

1158m

25
Q

Draft tube

A

03nos
5.2m x 4.5m

26
Q

TRT

A

dia 6.5m, D shape
length 125m
max 1182m
min 1167m

27
Q

River inflow levels for flood

A

250 to 2000 cumec Duty officer intouch with EIC
above 2000cumec EIC takes over
River discharge cross 250cumec with rising trend to be considered as Flood.

Hydroplant (8 decks)

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