Title :
EMC-measures for underground power cables
Author_Institution :
Gerhard-Mercator-Univ., Duisburg, Germany
Abstract :
Shielding-measures against the magnetic field of underground cables can lead to reductions of the current rating. This problem can be eliminated by laying the cables in a pipe, which is cooled by free or forced convection of the ambient air. This system allows heat recovery of the cable losses and thereby an essential improvement of the efficiency of the power transmission, combined with a low or even disappearing outer magnetic field.
Keywords :
cooling; electric conduits; electromagnetic compatibility; electromagnetic shielding; forced convection; losses; magnetic fields; natural convection; power cables; underground cables; 110 kV; EMC-measures; XLPE cables; air cooled cables; cable losses; current rating reduction; forced convection; free convection; heat recovery; magnetic field; outer magnetic field; pipe cables; power transmission efficiency improvement; shielding-measures; underground power cables; Cooling; Copper; Heat recovery; Magnetic field measurement; Magnetic shielding; Propagation losses; Soil; Thermal resistance; Trigeneration; Underground power cables;
Conference_Titel :
Electric Power Engineering, 1999. PowerTech Budapest 99. International Conference on
Conference_Location :
Budapest, Hungary
Print_ISBN :
0-7803-5836-8
DOI :
10.1109/PTC.1999.826646
