A current-limitation system for limiting a current through a DC connection (110, 115) in case of a fault occurring in a DC grid of which the DC connection forms a part, the current-limitation system comprising a current limiter for series-connection into the DC connection, and a control system for controlling the current-limiting strength of the current limiter; wherein the current limiter comprises a series connection of independently controllable breaker sections, wherein a breaker section comprises a parallel connection of a non-linear resistor and a semi-conductor switch of turn-off type; the control system comprises a current measuring device; and the control system is operable to: detect a fault; and, in response to detecting the fault, adjust the current-limiting strength of the current limiter, the current-limitation system being characterized in that the control system further comprises a voltage measuring device arranged to measure the voltage at at least one side of the current limiter; the control system is operable to detect a fault by checking whether the voltage at at least one side of the current limiter has fallen below a first voltage threshold; the current measuring device is arranged to measure the current through the current limiter; and the control system is operable to adjust (610, 640), in response to detection of a fault, the current-limiting strength of a current limiter in a manner so that if the current through the current limiter exceeds a first current threshold (I max), the current-limiting strength is increased so as to reduce the current through the current limiter; and if the current through the current limiter falls below a second current threshold level (I min), the current-limiting strength is decreased so as to increase the current through the current limiter, wherein the first current threshold lies below a rated current of the DC connection. the current limiter comprises a series connection of independently controllable breaker sections, wherein a breaker section comprises a parallel connection of a non-linear resistor and a semi-conductor switch of turn-off type; the control system comprises a current measuring device; and the control system is operable to: detect a fault; and, in response to detecting the fault, adjust the current-limiting strength of the current limiter, the current-limitation system being characterized in that the control system further comprises a voltage measuring device arranged to measure the voltage at at least one side of the current limiter; the control system is operable to detect a fault by checking whether the voltage at at least one side of the current limiter has fallen below a first voltage threshold; the current measuring device is arranged to measure the current through the current limiter; and the control system is operable to adjust (610, 640), in response to detection of a fault, the current-limiting strength of a current limiter in a manner so that if the current through the current limiter exceeds a first current threshold (I max), the current-limiting strength is increased so as to reduce the current through the current limiter; and if the current through the current limiter falls below a second current threshold level (I min), the current-limiting strength is decreased so as to increase the current through the current limiter, wherein the first current threshold lies below a rated current of the DC connection. detect a fault; and, in response to detecting the fault, adjust the current-limiting strength of the current limiter, the current-limitation system being characterized in that the control system further comprises a voltage measuring device arranged to measure the voltage at at least one side of the current limiter; the control system is operable to detect a fault by checking whether the voltage at at least one side of the current limiter has fallen below a first voltage threshold; the current measuring device is arranged to measure the current through the current limiter; and the control system is operable to adjust (610, 640), in response to detection of a fault, the current-limiting strength of a current limiter in a manner so that if the current through the current limiter exceeds a first current threshold (I max), the current-limiting strength is increased so as to reduce the current through the current limiter; and if the current through the current limiter falls below a second current threshold level (I min), the current-limiting strength is decreased so as to increase the current through the current limiter, wherein if the current through the current limiter exceeds a first current threshold (I max), the current-limiting strength is increased so as to reduce the current through the current limiter; and if the current through the current limiter falls below a second current threshold level (I min), the current-limiting strength is decreased so as to increase the current through the current limiter, wherein the first current threshold lies below a rated current of the DC connection.