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http://dx.doi.org/10.5207/JIEIE.2009.23.12.162

A Study on Insulation Performance Enhancement of Existing Transmission Line Considering Overvoltage Analysis Result and Fault Characteristic  

Kwak, Joo-Sik (한국전력공사 전력연구원 송배전연구소)
Woo, Jung-Woog (한국전력공사 전력연구원 송배전연구소)
Koo, Kyo-Sun (한국전력공사 전력연구원 송배전연구소)
Kim, Kyung-Tak (한국전력공사 전력연구원 송배전연구소)
Kweon, Dong-Jin (한국전력공사 전력연구원 송배전연구소)
Publication Information
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers / v.23, no.12, 2009 , pp. 162-168 More about this Journal
Abstract
This paper describes a study that is to redesign insulation of transmission lines and determine required the numbers of insulators in order to enhance the insulation performance of existing transmission lines which were constructed with standard insulation design, considering overvoltage analysis results, probabilities and characteristics of faults. To ensure proper insulation distance without deteriorating the required performance, EMTP model is established to calculate maximum overvoltage in the line. The fault records and predicted outage rates due to lightning and contamination in the line were investigated and analyzed respectively. It presents a method to determine the numbers of insulators considering the probability and the characteristic of fault.
Keywords
Insulation; TOV; Switching Overvoltage; Lightning Overvoltage; EMTP;
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  • Reference
1 KEPCO, 'Fault Analysis of Transmission Facility and Countermeasure in 2008', KEPCO Report, 2009
2 KEPCO, 'Design Standard and Handbook of Transmission' KEPCO Standard, pp.7-35, 2001
3 Central Research Institute of Electrical Power Industry in JAPAN, 'Electrical Design Handbook of 187[kV]-1000[kV] AC Transmission Line'
4 E.B. Shim et al, 'Insulation Coordination Study of 765[kV] Transmission System', KEPRI Report of KEPCO, pp 104-105, 1995
5 J.W. Shim et al, 'Field Study on Air Clearance of 765[kV] Transmission Line', KEPRI Report of KEPCO, pp 152-152, 1996
6 Y.W. Kang et al, 'Development of Lightning Outage Calculation Program', KEPRI Report of KEPCO, 2007