Sarcelle powerhouse - Hydro

Sarcelle
Layout of structures
OPINACA RESERVOIR
UPSTREAM
powerhouse
OW
FL
HEADRACE
CANAL
TRANSFORMER
SUBSTATION
SPUR
GENERATING
STATION
TAILRACE CANAL
CONTROL
STRUCTURE
DIKE OA-03
DOWNSTREAM
LAC BOYD
0
80 m
Document: 6702_70509_024_01_A_TU_0_LS000_01_BJ_121019.ai_rev01_fd
Development (during construction)
Opinaca reservoir
Transformer
substation
Generating
station
ORAIRES
ESOINS DE
CTION
Headrace canal
Control
structure
Dike OA-03
Tailrace canal
D
Lac Boyd
2013G261A-1
LAC
A-2
EO
IGU
D
E LA
100 %
N
Cross-section of Sarcelle powerhouse
Some facts
and figures
Normal
maximum level
215.80 m
Minimum
operating level
211.84 m
General information about the generating station
Type
220
215
Length
108.05 m
Width
50.43 m
Rated net head
Normal level (3 units)
for a design flow of 1,380 m3/s
201.32 m
Rated head
Total installed capacity
Minimum level (3 units)
for a design flow of 460 m3/s
199.81 m
210
Energy generated
Construction period
Level (m)
205
Run-of-river
from 8.7 to 16.1 m
10.8 m
150 MW
1.1 TW/year
September 2008
to April 2013
Number of workers on the jobsite at the
peak of construction
485 (August 2010)
Number of workers who have worked on
the site since construction began
2,482 person-years
200
Water intake
195
UPSTREAM
DOWNSTREAM
Height
37.20 m
Length
60.00 m
Width
9.30 m
190
Generating units
185
Type of unit
Legend
180
Number of units
Steel structure
Installation of bulb-type turbine generating
units—a first for Hydro-Québec.
Bulb-type units, where both the turbine and generator
are housed within a watertight metal casing, work well
in situations where there is little hydraulic head (about a
dozen metres at the Sarcelle site) and high flow.
Mechanical and
electrical equipment
Concrete
Design flow
0
3
1,380 m³/sec
Turbine runner diameter
7.10 m
Rotor diameter
7.90 m
Generating unit dimensions
Rock
Bulb
Length: 15.05 m from hub
cover nose to the runner axis
Diameter: 9.08 m
4 000 mm
Document: 6702_70509_006_01_0_TU_0_121010.ai_rev01_fda
0
4 000 mm