Synchronous machine outages resulting from winding failures and defects

Author

McDermid, W.

Author_Institution

Manitoba Hydro, Winnipeg, Man., Canada

fYear

1999

fDate

36281

Firstpage

791

Lastpage

793

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Electric Machines and Drives, 1999. International Conference IEMD '99

Conference_Location

Seattle, WA

Print_ISBN

0-7803-5293-9

Type

conf

DOI

10.1109/IEMDC.1999.769243

Filename

769243