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Power interruptions can cause significant financial losses to commercial and industrial customers. Backup generators and multiple utility supply feeders are often employed to improve the reliability and minimize such losses. The customer reliability depends not only on the service entrance reliability and backup generator system but also on the reliability of the components, such as circuit breakers, cables, bus bars, etc., used in the distribution facilities of the customers. This paper investigates the reliability impacts of investing in the backup generation and high-quality system components on industrial/commercial distribution systems supplied with different levels of service entrance reliability. The effects of different levels of redundancy in the backup generation and their start times are also examined. The IEEE Std 493-2007 Gold Book network is used for the illustration using data provided by the US Army Corp (PREP). The case studies presented can provide valuable insight to commercial/industrial customers for making efficient decisions for reliability investment.
Kiran Raj Timalsena; Rajesh Karki; Prasanna Piya; Safal Bhattarai. Need-based reliability investment in industrial/commercial power distribution systems. International Journal of System Assurance Engineering and Management 2020, 11, 747 -754.
AMA StyleKiran Raj Timalsena, Rajesh Karki, Prasanna Piya, Safal Bhattarai. Need-based reliability investment in industrial/commercial power distribution systems. International Journal of System Assurance Engineering and Management. 2020; 11 (3):747-754.
Chicago/Turabian StyleKiran Raj Timalsena; Rajesh Karki; Prasanna Piya; Safal Bhattarai. 2020. "Need-based reliability investment in industrial/commercial power distribution systems." International Journal of System Assurance Engineering and Management 11, no. 3: 747-754.