ABB has won an order worth around $140 million to deliver transformers to the State Grid Corporation of China (SGCC) for a high-voltage power corridor that will strengthen the Chinese electricity network and help meet rising demand in the Shandong coastal region.
The capacity of the power link will be 4000 MW at 660 kV over 1350 km, from Ningxia province to Shandong, China’s second most populous province.
The corridor will employ HVDC technology to maximise transmission efficiency. ABB’s transformers will serve the substations between the DC transmission line and the AC distribution linses and will be supplied in cooperation with local Chinese partners.
Each converter transformer is extremely large, weighing over 500 tonnes. This presents challenges that will be addressed by technical solutions like reducing the width of the transformers for the Ningxia station, located in a remote and mountainous area, so that they can be transported by rail.
“These high-specification transformers will enable efficient transmission of a large quantity of power across a long distance and with minimum losses,” said Bernhard Jucker head of ABB’s Power Products division.
