Preventing Failures in Outdoor Distribution-Class Metalclad Switchgear
- 1 October 1985
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Power Apparatus and Systems
- Vol. PAS-104 (10) , 2706-2712
- https://doi.org/10.1109/tpas.1985.319111
Abstract
Failure of the insulation in distribution- class metalclad switchgear may release large amounts of energy resulting in an explosive hazard to adjacent equipment and personnel. Many such failures have occurred in older outdoor and generating station switchgear within Ontario Hydro. The failures have often been caused by partial discharge (PD) activity and surface tracking which destroy organic bus support insulation. Test methods have evolved to help locate deteriorating insulation in the field, and to qualify new insulation systems. The life of the switchgear can often be extended by incorporating appropriate preventive maintenance.Keywords
This publication has 3 references indexed in Scilit:
- Engineering Dielectrics Volume I Corona Measurement and InterpretationPublished by ASTM International ,1979
- Performance of synthetic insulating materials under polluted conditionsProceedings of the Institution of Electrical Engineers, 1965
- An Outdoor Metalclad Switckgear Unit with a Weather-Protected Operating AisleTransactions of the American Institute of Electrical Engineers. Part III: Power Apparatus and Systems, 1957