IEC TS 60071-5:2002
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users
24-10-2014
English
18-06-2002
FOREWORD
1 General
1.1 Scope
1.2 Additional background
2 Normative references
3 Definitions
4 Symbols and abbreviations
4.1 Subscripts
4.2 Letter symbols
4.3 Abbreviations
4.4 Typical HVDC converter station schemes and
associated graphical symbols
5 Principles of insulation co-ordination
5.1 Essential differences between a.c. and d.c.
systems
5.2 Insulation co-ordination procedure
6 Voltages and overvoltages in service
6.1 Arrangements of arresters
6.2 Continuous operating voltages at various locations
in the converter station
6.3 Peak (PCOV) and crest value (CCOV) of continuous
operating voltage applied to valves and arresters
6.4 Sources and types of overvoltages
6.5 Overvoltage limiting characteristics of arresters
6.6 Valve protection strategy
6.7 Methods and tools for overvoltage and surge arrester
characteristic studies
6.8 Necessary system details
7 Design objectives of insulation co-ordination
7.1 Arrester requirements
7.2 Characteristics of insulation
7.3 Representative overvoltages
7.4 Determination of the required withstand voltage
7.5 Determination of the specified withstand voltage
7.6 Creepage distances
7.7 Clearances in air
8 Creepage distances and clearances in air
8.1 Creepage distance for outdoor insulation under d.c.
voltage
8.2 Creepage distance for indoor insulation under d.c.
voltage
8.3 Creepage distance of a.c. insulators (external)
8.4 Clearances in air
9 Arrester requirements
9.1 Arrester specification
9.2 AC bus arrester (A)
9.3 AC filter arrester (FA)
9.4 Valve arrester (V)
9.5 Bridge arrester (B)
9.6 Converter unit arrester (C)
9.7 Mid-point d.c. bus arrester (M)
9.8 Converter unit d.c. bus arrester (CB)
9.9 DC bus and d.c. line/cable arrester (DB and DL)
9.10 Neutral bus arrester (E)
9.11 DC reactor arrester (DR)
9.12 DC filter arrester (FD)
9.13 Earth electrode station arrester
Annex A (informative) Example of insulation co-ordination
for conventional HVDC converters
Annex B (informative) Example of insulation co-ordination
for Controlled Series Capacitor Converters (CSCC)
and Capacitor Commutated Converters (CCC)
Annex C (informative) Considerations for insulation
co-ordination of some special converter configurations
Bibliography
Figures
Tables
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