Title :
Cause of Failures of Pad-mounted Distribution Switchgears
Author :
Bellemare, André ; Fortin, Marcel
Abstract :
Pad-mounted distribution switchgears are widely used for more than 40 years. This paper review the causes of growing failure rates noted particularly in the last 15 years and review corrective actions being undertaken by Hydro-Quebec in order to reduce this failure rate. Insulation contamination associated with high humidity and condensation is the major cause of failure identified
Keywords :
contamination; power distribution faults; switchgear; Hydro-Quebec; failure rate reduction; insulation contamination; pad-mounted distribution switchgear failure; Contamination; Dielectrics; Flashover; Humidity; Insulation; Interrupters; Safety; Switches; Temperature distribution; Testing;
Conference_Titel :
Transmission and Distribution Conference and Exhibition, 2005/2006 IEEE PES
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-9194-2
DOI :
10.1109/TDC.2006.1668642
