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http://dx.doi.org/10.5370/KIEE.2013.62.4.467

Study on the algorithm for the Reasonable Switch Automation Rate with Customer Interruption Cost and Reliability Evaluation  

Chai, Hui-Seok (Dept. of Electrical Engineering, Soongsil Univ.)
Shin, Hee-Sang (Dept. of Electrical Engineering, Soongsil Univ.)
Cho, Sung-Min (Dept. of Electrical Engineering, Soongsil Univ.)
Moon, Jong-Fil (Dept. of Electrical Engineering, Korea National University of Transportation)
Kim, Jae-Chul (Dept. of Electrical Engineering, Soongsil Univ.)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.62, no.4, 2013 , pp. 467-473 More about this Journal
Abstract
The addition of disconnect switches to a distribution feeder or the replacement of the manual switches with the automatic switches do, in general, increase reliability by decreasing the duration of the outage of many to the customers on the feeder and reducing the outage section. However, the improvement of reliability in power distribution system causes an increase of the investment cost, for example, replacement costs, labor costs, and so on. For this reason - the balance between investment and reliability improvement - many studies about the appropriate level of investment have been conducted. In this paper, we suggest the algorithm for determining the reasonable switch automation rate in the power distribution system. We evaluate the customer interruption cost and reliability for several cases - these cases relate with the switch automation rate - in the domestic metropolitan power distribution system, estimate the effectiveness of changing the manual switch to automatic switch quantitatively. These results can help the determining on the disconnect switch's automation rate.
Keywords
Distribution system; Reliability; Disconnect switch; Automation;
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