22kV Network System for Changi Airport

Voted as the world’s number one airport for the previous eight years, Singapore’s Changi Airport is undergoing significant expansions. To support this expansion, we were contracted to design, supply, deliver, install, test and commission a 22kV network system for the new Terminal T5. 

Once completed, the Terminal T5 will be one of the largest airport terminals in the world. While the project included the deployment of many different Ampcontrol capabilities, a key aspect of the expansion was the development of a three-runway system and network of inter and intra terminal tunnels. As this was the first large diameter bored tunnel in Singapore, the power requirements were significantly larger than the previous projects completed in the country. 

Our solution proposed a 22/22kV isolation transformer which was used to supply the tunnel boring machine to limit the secondary fault current to the system. This design and approach was both safer and more practical than using a 11kV system. While mostly recognised for its Australian operations, Ampcontrol operates several successful operations in South East Asia which specialise in high voltage service and engineering support for the tunneling and infrastructure sectors. Despite the ongoing Covid-19 pandemic the site supply was successfully powered on in October of 2021 and while the project is still ongoing, Ampcontrol is committed to suppling the highest quality products and services both in Australia and abroad. Read the full case study below.