May 2003 ISSUE TONGBAI Page 4/5 COMPACT HYDRO in ...

18
HIGHLIGHTS
SWITZERLAND
RECKINGEN
Kriens-based VA TECH HYDRO was
awarded a contract by the operators
of Reckingen power plant to upgrade
and modernize one of their Kaplan
turbines.
Built 65 years ago, the station is situated
10 km to the east of Waldshut on the
Rhine. The scope of supplies includes a
set of new runner blades, a guide wheel
ring, discharge ring, and draft tube cone
to allow for an increase of the runner
diameter from 6,200 mm to 6,450 mm.
Furthermore, the existing turbine controller
will be replaced by a digital TC
1703 governor of the NEPTUN series.
This upgrading project is designed to
boost the annual energy production of
the refurbished turbine No. 1 by 3 %. A
subsequent upgrading of turbine No. 2
would result in a 5.7 % increase in overall
annual energy production. Reconstruction
and modernisation work is
scheduled to start in January 2004.
Technical data:
Output: 22 MW
Head: 9 m
Speed: 75 rpm
Runner diameter: 6,450 mm
Herbert Mignoli
Phone +41/41 329 53 09
herbert.mignoli@vatech-hydro.ch
BOSNIA
JABLANICA
VA TECH HYDRO has signed a
follow-up contract for the modernization
of unit 2 of Jablanica
hydropower station, located in
Bosnia-Herzegovina, 80km south
of Sarajevo.
This contract follows the successful
refurbishment of three other units over
the past three years for Elektroprivreda
Bosne I Hercegovine, Bosnia’s largest
electricity provider.
VA TECH HYDRO will supply the
Jablanica plant, which dates back to
1954, with various components including
a new runner, distributor, turbine
shaft, governor and corresponding
oil hydraulic unit as well as three
butterfly valves for units 1 to 3. Deliv-
ery will take place within eleven months
and VA TECH HYDRO will supervise the
installation of the equipment. Within
less than 20 months the plant will be fully
operational. Refurbishment will increase
the plant’s peak power by 22%
and peak efficiency by 7%. Once all five
units have been modernized, the additional
annual energy production of more
than 50,000 MWh will supply 100,000
households with clean energy.
Technical data:
Output: 30.2 MW
Head: 99 m
Speed: 300 rpm
Runner diameter: 2,000 mm
Jacques Bonifay
Phone +41/21 925 77 75
jacques.bonifay@vatech-hydro.ch
INDIA
MUNIRABAD
VA TECH HYDRO in India has executed
an order for the modernization
of 40-year old Munirabad hydropower
plant for VVNL (former KEB) in
the state of Karnataka, realizing a
significant improvement in plant performance.
The contract was signed in December
2000 and all the three Kaplan units have
been successfully commissioned in the
year 2002. In addition to other overhauling
activities, the major scope of work
consisted in the replacement of the existing
hydromechanical governors with digital
electronic governors and the existing
excitation system with a microprocessorbased
static excitation system. The order
is of special significance since it is the
third consecutive order in the state of Karnataka
placed by the same customer.
Technical data:
Output: 9 / 10 MW
Voltage: 11 kV
Head: 20 m
Speed: 214 rpm
Runner diameter: 2,800 mm
Yogesh Bahadur
Phone +91/129 527 4319
contact@vatewf.com
INDIA
NERIAMANGALAM
20 % output increase by modernization
The contract for the upgrading of
three Francis turbines and governing
systems came into force in
October 2002. Rehabilitation of this
power plant, located in the south of
India, will allow our customer,
KSEB, to improve energy production
and services. Financing will be
assured by a Swiss mixed credit.
Technical data:
Output: 18.1 MW
Head: 192 m
Speed: 600 rpm
Runner diameter: 1,150 mm
Florence Gaubil
Phone +41/21 925 77 71
florence.gaubil@vatech-hydro.ch
THAILAND
KLONG THUNG PHEN
VA TECH HYDRO has achieved the
first sales success with compact turbines
in Thailand.
In December 2002, a contract for
the delivery of two compact Francis
turbines including synchronous generators,
inlet valves, and turbine control
cubicles was signed with the Thai Company
ST POWER ENGINEERING
CORPORATION Ltd. The scope of supply
for VA TECH HYDRO will be incorporated
in a general drinking water supply
project for the province of
Chantaburi (approx. 200 km southeast
of Bangkok), which consists of a dam,
head water channel, surge tank, steel
penstock, the powerhouse with adjacent
tail water channel and reservoir.
The client and operator of this hydropower
plant is a department of the
Thai Ministry of Energy, the Department
of Energy Development and Efficiency
(DEDE), based in Bangkok. Commissioning
has been scheduled to take
place early in the year 2004.
Technical data:
Output: 4,900 kW
Head: 190 m
Speed: 1,000 rpm
Runner diameter: 611 mm
Hans Wolfhard
Phone +49/751 83 3304
hans.wolfhard@vatew.de