Practical Aspects of Repairing and Rewinding Hydro-Electric Generatorsby R. L. Wall, GE, GE,
D. Olsen, GE, GE,
Abstract: Often the general condition of the winding can be assessed and in some cases, corrective action can be taken to prolong the life of the winding. In other situations, the assessment may indicate that the winding is too badly deteriorated and planned replacement is necessary. Unfortunately, in other situations the winding fails and then there is no question but that it must be repaired or replaced immediately. Whatever the case, time is often of key importance and minimizing downtime a key objective. This paper deals with the practical aspects of assessing winding conditions, making emergency repairs, and rewinding techniques used to minimize downtime.
Subject Headings: Emergency management | Lifeline systems | Deterioration | Hydro power | Electrical equipment
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