%0 Generic %1 borgonovo1978evaluation %A BORGONOVO, G %A SANTAGOSTINO, G %A GAMBELLI, G %A LAGOSTENA, L %A PORRINO, A %D 1978 %K Circuit-breaker Earth Energisation Lightning Overvoltage Polyphase Shunt Switching System UHV breaker compensation stroke surge %T EVALUATION OF THE RISK OF FAILURE DUE TO SWITCHING SURGES IN UHV NETWORKS %X This paper discusses the problems of the switching surges overvoltages and their impact on the project of UHV systems, paying special attention to possible means for their limitation. With reference to some possible lay-outs of the future UHV italian network, a huge set of calculations has been perfonned to detennine the levels of switching surge overvoltages generated under various conditions (fault application, single-phase and three-phase reclosure, line energization etc.). Starting from the overvoltages previously calculated, the risk of insulation failure of the line has been detennined for different values of 50 percent discharge voltage of tower insulation to switching impulse. The papers gives also some information concerning the project of the future UHV system, in particular as regards the use of opening and closing resistors, earth-breakers, single or three-phase reclosure, and shunt reactors.

@conference{borgonovo1978evaluation, abstract = {This paper discusses the problems of the switching surges overvoltages and their impact on the project of UHV systems, paying special attention to possible means for their limitation. With reference to some possible lay-outs of the future UHV italian network, a huge set of calculations has been perfonned to detennine the levels of switching surge overvoltages generated under various conditions (fault application, single-phase and three-phase reclosure, line energization etc.). Starting from the overvoltages previously calculated, the risk of insulation failure of the line has been detennined for different values of 50 percent discharge voltage of tower insulation to switching impulse. The papers gives also some information concerning the project of the future UHV system, in particular as regards the use of opening and closing resistors, earth-breakers, single or three-phase reclosure, and shunt reactors.}, added-at = {2021-02-10T14:59:29.000+0100}, author = {BORGONOVO, G and SANTAGOSTINO, G and GAMBELLI, G and LAGOSTENA, L and PORRINO, A}, biburl = {https://www.bibsonomy.org/bibtex/2061787a48f75cad0ff285603f687928e/ceps}, interhash = {e88586f49e974847b1c61e6af77f56de}, intrahash = {061787a48f75cad0ff285603f687928e}, keywords = {Circuit-breaker Earth Energisation Lightning Overvoltage Polyphase Shunt Switching System UHV breaker compensation stroke surge}, timestamp = {2023-12-21T15:02:24.000+0100}, title = {EVALUATION OF THE RISK OF FAILURE DUE TO SWITCHING SURGES IN UHV NETWORKS}, year = 1978 }