Patent ID: 7616087

Claim:
An installation for transmission of electric power, comprising: two switchgear units; a high-voltage ac voltage line extending between the switchgear units, wherein the high-voltage exceeds at least 10 kV, the ac voltage line comprising at least one extruded cable including an inner electric conductor, an insulating layer of a solid material surrounding said conductor, and an outer screen layer located at ground potential; at least one inductor located along the cable between the switchgear units and integrated into the at least one extruded cable, the at least one inductor being connected between the conductor of the at least one extruded cable and ground; and a casing through which the cable is lead, the casing being located at ground potential, and the at least one inductor being arranged in the casing, wherein a first end of the at least one inductor is connected to the electric conductor and a second end of the at least one inductor is connected to the casing.