![Hitachi Energy’s subsea HVDC transmission system upgrade Hitachi Energy’s subsea HVDC transmission system upgrade](https://transform.zgisoft.com/files/1030-500-the-harku-hvdc-converter-station-the-estonian-side-of-estlink-340x210.jpg)
Hitachi Energy’s subsea HVDC transmission system upgrade
The system is to be upgraded with MACH™ control and protection system to enhance power security.
The system is to be upgraded with MACH™ control and protection system to enhance power security.