Title :
Synchronous machine outages resulting from winding failures and defects
Author_Institution :
Manitoba Hydro, Winnipeg, Man., Canada
Abstract :
The paper reviews the synchronous machine forced outages experienced by one electric utility over a 30 year period which resulted from winding failure and other defects. The causes of failure include water, other contaminants, insufficient cooling, inadequate protective relaying or monitoring, bad joints, loose laminations, loose windings, component fatigue, inappropriate insulating materials, manufacturing problems, damage during installation and human error. This provides an indication where monitoring, testing and maintenance activities should be directed
Keywords :
electrical faults; machine windings; synchronous machines; bad joints; component fatigue; contaminants; cooling; electric utility; insulating materials; loose laminations; loose windings; maintenance activities; manufacturing problems; monitoring; protective relaying; synchronous machine forced outages; testing; water; winding defects; winding failures; Condition monitoring; Cooling; Fatigue; Insulation; Joining materials; Lamination; Machine windings; Power industry; Protective relaying; Synchronous machines;
Conference_Titel :
Electric Machines and Drives, 1999. International Conference IEMD '99
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-5293-9
DOI :
10.1109/IEMDC.1999.769243
