ABB Sets Another Record With Ultrahigh-Voltage Power Project
Jan 13, 2010 - Electricnet.com
the leading power and automation technology group, announced the successful 'open-line'
test for Pole 1 of the 800 kV (kilovolt) UHVDC (ultrahigh-voltage direct current)
Fengxian converter station in Shanghai, in close cooperation with State Grid Corporation
of China (SGCC). This test was accomplished in a record time of just two years
from receiving the order, a year ahead of schedule.
"The cooperation between
ABB, SGCC and local partners has played a key role in this significant technological
achievement," said Per Haugland, head of the global Grid Systems business, a part
of ABB's Power Systems division. "It proves ABB's global leadership in HVDC technology,
which is ideally suited to transmit power from remote sources and renewables across
vast distances, with minimum energy losses."
The ±800 kV Xiangjiaba-Shanghai
HVDC link will transmit 6,400 MW of power from the Xiangjiaba hydropower plant,
located in the southwest of China, to Shanghai, China's leading industrial and
commercial center, located over 2,000 kilometers away.
system, when completed, will set a new benchmark in terms of voltage levels and
transmission capacity. The record is presently held by the 600 kV Itaipu transmission
line in Brazil, also delivered by ABB. The efficiency of the Xiangjiaba-Shanghai
transmission line will be more than 93 percent, with transmission losses being
restricted to under 7 per cent. This would enable power supply for an additional
1 million people in China every year as compared with the 500 kV HVDC systems
in use there.
ABB's scope of delivery includes fourteen 400 kV converter
transformers and fourteen 800 kV converter transformers, of which ten will be
delivered from Sweden and the rest manufactured locally in partnership with TBEA
in Shenyang, with ABB components and technology. Other key products include thyristor
valves, DC (direct current) switchyard equipment, measuring equipment for the
AC (alternating current) switchyard and the newly developed DCC800 HVDC control
UHVDC transmission is a development of HVDC, a technology pioneered
by ABB more than 50 years ago. The new technology with an advanced control system
is the biggest capacity and efficiency leap in over two decades and is particularly
suitable for vast countries like China and India, where consumption centers are
often located at great distances from available power sources including renewables.
ABB is a leader in power and automation technologies that
enable utility and industry customers to improve performance while lowering environmental
impact. The ABB Group of companies operates in around 100 countries and employs
about 120,000 people. For more inforation, visit: www.abb.com.