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U.S. Department of Energy
Office of Scientific and Technical Information

Taking another look at electrical system reliability

Journal Article · · Public Util. Fortn.; (United States)
OSTI ID:7293905
Power systems designed to meet customer service quality standards are proposed as a way to provide reliable power without increasing the generating capacity. A unified reliability standard is needed for the combined bulk power system and the distribution network, which is responsible for nearly all customer power failure. Criteria for setting acceptable reliability levels vary for different groups of customers, hospitals requiring the highest quality. Utilities under this system will guarantee a certain service level and prices will be geared accordingly. Costs can be charged directly (i.e., extra charges to cover the cost of higher quality or the customer can install his own back-up arrangements) or indirectly through rebates to the customers receiving lower-quality service. Improvements in distribution systems will require additional investment, but should be looked at as alternatives to new plant investment. Areas for improvement include underground and alternate lines, better maintenance, improved substation equipment, sectionalized circuits to isolate faults, and dispersed generation and storage. Ways to improve the bulk power system portion are also identified as alternatives to new construction. A utility wishing to try these alternatives must first analyze the present quality of its composite bulk power and distribution system to determine the true level of existing reliability. (DCK)
OSTI ID:
7293905
Journal Information:
Public Util. Fortn.; (United States), Journal Name: Public Util. Fortn.; (United States) Vol. 99:6; ISSN PUFNA
Country of Publication:
United States
Language:
English