Hydrogenerator insulation: maintaining the system
Changes in hydrogenerator insulation systems have occurred in the last 20 years because of the development of large projects and the resulting requirements for high capacity hydrogenerators. Insulation systems, which originally consisted of mica tapes and asphalt or shellac binders, have been replaced with hard insulation systems using mica and polyester or epoxy resin. However, the new insulation systems have created some new problems. As a result, many hydro plant operators have had to update maintenance practices and develop new preventive maintenance techniques. Insulation system maintenance practices necessary to detect, identify and correct defects and problems so that further deterioration can be arrested, abnormal conditions remedied, and in-service equipment failures prevented are discussed.
- Research Organization:
- British Columbia Hydro and Power Authority, Vancouver
- OSTI ID:
- 5763889
- Journal Information:
- Hydro Rev.; (United States), Vol. 3:4
- Country of Publication:
- United States
- Language:
- English
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