After the first demonstration model experimented in 1988(1*2), a current limiter system has been recently realized and tested, based on GEC ALSTHOWs kA- class AC superconducting conductors. Its active components are two parallel non inductive superconducting windings, a shunt resistor, and a detection box which triggers the opening of a fast circuit breaker. Rated currents up to 1 kAms, and ground to phase voltages up to 5 kV,, have been applied. The transient peak current is strictly limited to 3000 A, in very different short-circuit conditions. The conductor definition guarantees complete transitions, and therefore maximal protection, whether in the case of a short circuit or of an accidental quench. These results make possible the application to the power networks. 3 kApeak, in the various fault conditions which could to appear on one of the 3 phases of a 7.2 kVms network. Operating principle : The resistance appearing when the critical current is exceeded can be exploited in different ways. Resistive and inductive limitation are frequently compared. In the various modes of inductive current limitation, reactors of worrying sizes and costs are complementary used. We rather chose to experiment the purely resistive mode of limitation, in which the superconducting switch is directly in series with the power line. Sketch of the system :