In this paper a methodological study is presented for the optimal design of a vacuum feedthrough to be used in HV direct current, with high electrical performances in terms of holdoff voltage. From general guidelines, widely described in the literature and relevant to simpler geometric configurations, summarized in few basic rules useful to design vacuum insulators, the authors have sketched an optimal insulator profile for a cylindrical axisymmetrical arrangement. The adopted assumptions have been validated by means of numerical tools based on Charge Simulation Method and Finite Difference Method. A prototype feedthrough has been realised matching the constraints about the field distribution achieved theoretically with the technological ones due to the manufacturing process. High voltage experimental tests confirming the effectiveness of the suggested insulator design approach are reported.
Methodological approach for improvement of vacuum-insulated HV bushings / Lupo', Giovanni; Petrarca, Carlo; Egiziano, L.; Spagnuolo, G.; Tucci, V.. - STAMPA. - 1:(1996), pp. 552-556. (Intervento presentato al convegno International Symposium on Discharges and Electrical Insulation in Vacuum, ISDEIV tenutosi a Berkeley, CA, USA nel 21-26 luglio 1996) [10.1109/DEIV.1996.545422].
Methodological approach for improvement of vacuum-insulated HV bushings
LUPO', GIOVANNI;PETRARCA, CARLO;
1996
Abstract
In this paper a methodological study is presented for the optimal design of a vacuum feedthrough to be used in HV direct current, with high electrical performances in terms of holdoff voltage. From general guidelines, widely described in the literature and relevant to simpler geometric configurations, summarized in few basic rules useful to design vacuum insulators, the authors have sketched an optimal insulator profile for a cylindrical axisymmetrical arrangement. The adopted assumptions have been validated by means of numerical tools based on Charge Simulation Method and Finite Difference Method. A prototype feedthrough has been realised matching the constraints about the field distribution achieved theoretically with the technological ones due to the manufacturing process. High voltage experimental tests confirming the effectiveness of the suggested insulator design approach are reported.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
