Title :
GIS insulation co-ordination: on-site tests and dielectric diagnostic techniques. A utility point of view
Author :
Sabot, A. ; Petit, A. ; Taillebois, J.P.
Author_Institution :
Res. Div., Electicite de France, Les Renardieres, France
fDate :
7/1/1996 12:00:00 AM
Abstract :
This paper summarizes the Electricite de France experience with insulation coordination of gas-insulated substations (GIS). After a review of the insulation coordination practice, mainly dealing with fast front overvoltages and the one minute AC test, some results of the on-site test procedure applied for 30 years are presented and related to the insulation co-ordination practice. The in-service return of experience dealing with dielectric failures is analyzed. The dielectric diagnostic techniques now available are briefly presented with their possibilities and limitations. According to this survey, the expectations of EDF from these diagnostic techniques as well as the new on-site test and online monitoring tendencies at EDF are presented
Keywords :
electric breakdown; gas insulated substations; insulation co-ordination; insulation testing; power system measurement; EDF; France; dielectric diagnostic techniques; dielectric failures; electric utilities; experiences; fast front overvoltages; gas-insulated substation; in-service return; insulation co-ordination; on-site tests; one minute AC test; online monitoring; survey; Arresters; Condition monitoring; Dielectrics and electrical insulation; Failure analysis; Gas insulation; Geographic Information Systems; Insulation testing; Lightning; Strontium; Voltage control;
Journal_Title :
Power Delivery, IEEE Transactions on
