Title :
Overview of hydrogenerator stator winding monitoring
Author_Institution :
Iris Power Eng., Canada
Abstract :
Stator winding failure due to insulation system deterioration is an important cause of hydrogenerator forced outages. Furthermore, if the deterioration is not found at an early stage, premature stator rewinding may be required, at a cost that far exceeds the cost of many maintenance procedures, such as rewedging and cleaning. Several online monitors are now available which detect stator winding deterioration. This paper reviews the need for online monitoring and describes ozone, temperature and partial discharge monitoring systems
Keywords :
computerised monitoring; hydroelectric generators; insulation testing; machine insulation; machine testing; partial discharge measurement; stators; hydrogenerator forced outages; hydrogenerator stator winding monitoring overview; insulation system deterioration; maintenance procedures; online monitors; ozone monitoring; partial discharge monitoring; stator rewinding; stator winding deterioration detection; stator winding failure; temperature monitoring; Aging; Cleaning; Condition monitoring; Cooling; Costs; Failure analysis; Insulation; Partial discharges; Stator windings; Temperature;
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.1999.769248
