Advancements in Online PD Testing
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For decades it has been recognized that partial discharge assessment is an excellent method for determining asset health.
On line non-invasive techniques for monitoring and surveying have been proven to provide the necessary level of detail for condition assessment without impacting system operation.
Techniques exist now to test assets from 3KV to 500KV and beyond. Metal clad switchgear and busswork, GIS switchgear and busses, air insulated assets (insulators, arrestors, bushings, etc.), as well as paper insulated and extruded cables can all be tested on-line without an outage.
This presentation will give a brief overview of the causes and effects of partial discharge and then examine the various technologies available for finding it on-line.
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