Summary
This paper gives examples of challenging technical decisions being made within an asset management context; good decision making relies on and requires good communication between technical staff and asset management, particularly when the issue being addressed is unexpected. An analysis of circuit breaker spares required for maintenance of system availability has to be considered with relation to long lead times and subsequent management of the spares. Bushing issues found during inspection lead to intensive offline test and assessment, requiring subsequent urgent replacement of all such bushings in service.
Read more Read lessComparison of on-line bushing monitoring systems leads to implementation of complementary systems for best detection of possible failure modes in operation. In service inspection of a newly installed transformer finds significant corona discharge on one bushing, requiring unplanned outage after an escalation process by the owner/operators. DGA analysis tools being developed may provide greater diagnostic value, but take years to find acceptance in standards, needing a track record of success. The electric supply industry provides many opportunities to learn from colleagues and share information: we also look briefly at factory audits, digital twins, and some key issues of the past.
Additional informations
| Publication type | Session Materials |
|---|---|
| Reference | B3_10158_2026 |
| Publication year | |
| Publisher | CIGRE |
| Country | United States of America |
| Study committees | |
| File size | 885 KB |
| Price for non member | 30 € |
| Price for member | 30 € |
Authors
MCGRAIL Tony - Doble Engineering, United States of America; DHIRR Reena - Manitoba Hydro, Canada; PAULHIAC Luc - EdF Nuclear, France; BEARDSALL Jamie - Drax Power. United Kingdom; JOHNSTONE Carl - I4am, United Kingdom; SUTTON Simon - Doble PowerTest, United Kingdom; WILSON Gordon - National Grid, United Kingdom; KHALIL Mohamed - Doble PowerTest, United Kingdom
Keywords
Asset Management - Technical Drivers - Business Context - Bushings - Spares
