Transmission Line Arresters Application for Control of Switching Overvoltages on 500-kV Transmission Line

被引：0
|
作者：
Bunov, P. [1 ]
Klingbeil, L. [1 ]
Schubert, M. [1 ]
Gossler, B. [1 ]
Biswas, D. [1 ]
Hunt, James [2 ]
Thallam, R. [3 ]
Keri, A. J. F. [4 ]
机构：
[1] Siemens AG, Surge Arresters, Berlin, Germany
[2] Syst Consulting Grp ABB, Salt River Project, Toronto, ON, Canada
[3] Syst Consulting Grp ABB, Toronto, ON, Canada
[4] Syst Consulting Grp ABB, Grid, Toronto, ON, Canada
来源：
2014 IEEE PES T&D CONFERENCE AND EXPOSITION | 2014年
关键词：
transmission line arrester (TLA); switching overvoltage; high energy metal-oxide varistors (MOV); energy capability of MOV blocks; switching surge energy test; disconnector; arrester disconnector mounting system;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This report describes investigations and actions on a 500-kV transmission line operated by the US utility Salt River Project (SRP) and initiated by new considerations regarding the transmission lines' reliability program by the US North American Electric Reliability Corporation (NERC). Based on NERC's new system clearance requirements for certain switching surge overvoltage levels, SRP decided to apply high energy transmission line arresters (TLAs) for limiting those overvoltages to levels that would avoid the need for much more expensive capital improvements to increase clearance to ground, for example to replace or enlarge the tower construction. The correct location of the TLAs and the line span to be protected were determined by a software study by analyzing transmission line energization overvoltages for different cases. The utility and the arrester manufacturer jointly decided about the design of the surge arrester to be developed, a high strength polymer housed station class surge arrester with high energy handling capability of 13 kJ kVMCOV-1. As agreed between SRP and the manufacturer, the energy rating test was repeated by Siemens per the latest IEEE/ANSI std. C62.11-2012.
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页数：5
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