Kaplan hydro power plants0 pages

HYDRO POWER SOLUTIONS
Vertical Kaplan
Power Plants
Alstom provides the
full range of products
and services for Kaplan
power plants, including,
turbines, generators, hydro
mechanical equipment,
control systems, balance
of plant and services.
High performance over a large
range of heads and discharge
Vertical Kaplan power plants in brief:
Kaplan power plants are designed for
low head applications typically between
15 and 40 m, with unit outputs from
30 to 250 MW with even bigger outputs
currently under study.
When used in a run of river
configuration, Kaplan power plants
can help to accommodate smaller-sized
reservoirs, limiting the impact on
the environment.
Kaplan turbines are characterized by adjustable blades and wicket gates which enable them
to deliver efficient output over a wide range of heads and discharge – an important feature
given they are frequently used where river flows vary significantly with the season.
Their vertical configuration allows larger runner diameters (over 10 m) which increases unit
power and decreases the number of units needed.
Innovations for optimized performance and reliability
Alstom has been leading the way in innovating Kaplan power plants for increased performance and reliability for its customers,
since it introduced its first Kaplan turbine in 1925.
Maintenance-free stator frame: The generator’s stator elements are attached
to the base at oblique angles. This reduces mechanical stress and
enables the elements to expand as they heat up during generator
operation. They also have the added benefit of having no moving feet
which means they don’t need maintenance and can’t get blocked
which could cause the unit to fail.
Insulation: Alstom’s leading insulation system, with high quality stator
windings, strong mechanical fixing of both bars and the stator core,
leads to long, trouble-free operation.
Shaft lines: Alstom provides its customers with short and stiff shaft lines
that reduce the height of the powerhouse and, as a consequence, the civil
works required. They also improve mechanical behaviour which in turn increases
performance.
RPW/BPROS/VRTKPL12/eng/HYD/03.12/FR/7565 © - ALSTOM 2012. ALSTOM, the ALSTOM logo and any alternative version thereof are trademarks and
service marks of ALSTOM. The other names mentioned, registered or not, are the property of their respective companies. The technical and other data contained
in this document is provided for information only. ALSTOM reserves the right to revise or change this data at any time without further notice.