Title :
Mechanical short-circuit effects of single-core cables
Author :
Rüger, W. ; Hosemann, Gerhard
Author_Institution :
Lehrstuhl fuer Elektrische Energieversorgung, Erlangen-Nurnberg Univ., West Germany
Abstract :
A simple calculation model is presented that allows a determination of the permanent plastic deformation caused by short-circuit forces in plastic-insulated single-core cables. The accuracy of the model is sufficient for practical purposes. The model is verified by tests in a heavy-current laboratory. For rating, the mechanical short-circuit strength it is shown to be sufficient to adhere to a maximum permissible permanent displacement. For this calculation, only one material parameter, the yield point of the conductor material, is necessary.<>
Keywords :
cable insulation; cable testing; insulation testing; mechanical testing; plastic deformation; power cables; short-circuit currents; model; plastic deformation; power cables; rating; short-circuit effects; yield point; Circuits; Conducting materials; Conductors; Friction; Industrial plants; Mechanical cables; Testing; Thermal expansion; Thermal stresses; Wires;
Journal_Title :
Power Delivery, IEEE Transactions on
