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Introduction of Insulation Coordination for UHV AC Systems
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 Title & Authors
Introduction of Insulation Coordination for UHV AC Systems
Shim, Eungbo; Zaima, Eiichi;
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 Abstract
This paper introduces the insulation coordination study results for UHV AC systems which was performed by CIGRE working group. The study results will be discussed within IEC technical committee in order to amend the IEC Insulation Coordination 60071-1 Ed. 8 2010 and 60071-2 Ed. 3, 1996. This paper includes the insulation coordination of transformer, gas insulated switchgear, metal oxide arresters and clearances of transmission towers. This article also illustrates the overvoltage specific to UHV systems such as TOV(temporary overvoltage), switching overvoltage, lightning overvoltage and VFTO(very fast transient overvoltage).
 Keywords
Insulation coordination;UHV;Overvoltage;Surge arrester;TOV;VFTO;
 Language
English
 Cited by
 References
1.
Eiichi Zaima, C.Neumann, "Insulation Coordination for UHV AC Systems based on Surge Arrester Application (CIGRE C4.306)", IEC-CIGRE Second International Symposium on Standards for Ultra High Voltage Transmission

2.
Guagfan Li, Jianbin Fan, "The experience of UHV substation facilities in China", International Conference on Development of 1200kV National Test Station.

3.
IEC 60071-1 Ed. 8.1, "Insulation co-ordination -Part 1: Definitions, principles and rules", 2011

4.
CIGRE brochure No.400, “Technical Requirements for Substation exceeding 800kV”, 2010

5.
CIGRE brochure No.542, “Insulation coordination for UHV transmission system”, 2013