CURL380 – Key technology for superconducting current limiters for use in extra-high voltage networks of 380 kV

Project objective

As a result of the energy transition and the major expansion of the grid, short-circuit currents in the transmission grid are rising above the current limits of 63 kA. A superconducting current limiter offers a new way of limiting the currents without interfering with the normal operation of the grids. This means that grid conversion and expansion measures can be avoided or significantly delayed.

The main objective of the project is therefore to develop the key technology for a 380 kV, 5 kA, 3.3 GVA superconducting current limiter so that the development of a single-phase prototype can begin immediately if the project is successful.

In detail, the following sub-goals are planned:

  1. Development and testing of the critical components of a 380 kV, 5 kA superconducting current limiter.
  2. Investigation of application scenarios for the most attractive locations. Several application scenarios will be set up and systematically investigated.
  3. Development of a conceptual design for a 3-phase system.