Aging of safety class 1E transformers in safety systems of nuclear power plants
- Lockheed Idaho Technologies Co., Idaho Falls, ID (United States)
This report discusses aging effects on safety-related power transformers in nuclear power plants. It also evaluates maintenance, testing, and monitoring practices with respect to their effectiveness in detecting and mitigating the effects of aging. The study follows the US Nuclear Regulatory Commission`s (NRC`s) Nuclear Plant-Aging Research approach. It investigates the materials used in transformer construction, identifies stressors and aging mechanisms, presents operating and testing experience with aging effects, analyzes transformer failure events reported in various databases, and evaluates maintenance practices. Databases maintained by the nuclear industry were analyzed to evaluate the effects of aging on the operation of nuclear power plants.
- Research Organization:
- US Nuclear Regulatory Commission (NRC), Washington, DC (United States). Div. of Engineering Technology; Lockheed Idaho Technologies Co., Idaho Falls, ID (United States)
- Sponsoring Organization:
- Nuclear Regulatory Commission, Washington, DC (United States)
- DOE Contract Number:
- AC07-76ID01570
- OSTI ID:
- 201806
- Report Number(s):
- NUREG/CR-5753; INEL-95/0573; ON: TI96006598; TRN: 96:008498
- Resource Relation:
- Other Information: PBD: Feb 1996
- Country of Publication:
- United States
- Language:
- English
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