EN 60633:1999

SLOVENSKI STANDARD
01-junij-2001
Terminology for high-voltage direct current (HVDC) transmission (IEC 60633:1998)
Terminology for high-voltage direct current (HVDC) transmission
Terminologie für Hochspannungsgleichstromübertragung (HGÜ)
Terminologie pour le transport d'énergie en courant continu à haute tension (CCHT)
Ta slovenski standard je istoveten z: EN 60633:1999
ICS:
01.040.29 Elektrotehnika (Slovarji) Electrical engineering
(Vocabularies)
29.200 8VPHUQLNL3UHWYRUQLNL Rectifiers. Convertors.
6WDELOL]LUDQRHOHNWULþQR Stabilized power supply
QDSDMDQMH
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

NORME
CEI
INTERNATIONALE
IEC
INTERNATIONAL
Deuxième édition
STANDARD
Second edition
1998-12
Terminologie pour le transport d'énergie
en courant continu à haute tension (CCHT)
Terminology for high-voltage
direct current (HVDC) transmission
 IEC 1998 Droits de reproduction réservés  Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in
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procédé, électronique ou mécanique, y compris la photo- including photocopying and microfilm, without permission in
copie et les microfilms, sans l'accord écrit de l'éditeur. writing from the publisher.
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CODE PRIX
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PRICE CODE V
International Electrotechnical Commission
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For price, see current catalogue

60633 © IEC:1998 – 3 –
CONTENTS
Page
FOREWORD . 11
Clause
1 Scope. 13
2 Normative references. 13
3 Symbols and abbreviations . 13
3.1 List of letter symbols. 13
3.2 List of subscripts . 15
3.3 List of abbreviations. 15
4 Graphical symbols . 17
5 General terms related to converter circuits . 17
5.1 Conversion . 17
5.2 Converter connection. 17
5.3 Bridge (converter connection) . 17
5.4 (Converter) arm . 17
5.5 By-pass path . 19
5.6 Commutation . 19
5.7 Commutating group . 19
5.8 Commutation inductance . 19
5.9 Pulse number p . 19
5.10 Commutation number q. 19
6 Converter units and valves. 21
6.1 Converter unit. 21
6.2 (Converter) bridge . 21
6.3 Valve . 21
6.4 Main valve . 21
6.5 By-pass valve . 21
6.6 Thyristor module. 21
6.7 Reactor module . 23
6.8 Valve section . 23
6.9 (Valve) thyristor level . 23
6.10 Valve support . 23
6.11 Valve structure . 23
6.12 Valve interface (electronics) (unit). 23
6.13 Valve electronics . 23
6.14 Valve arrester . 23
6.15 Converter unit arrester. 23
6.16 Converter unit d.c. bus arrester. 23
6.17 Midpoint d.c. bus arrester . 25
6.18 Valve (anode) (cathode) reactor. 25
6.19 Converter transformer. 25
6.20 By-pass switch. 25

60633 © IEC:1998 – 5 –
Clause Page
7 Converter operating conditions. 25
7.1 Rectifier operation; rectification. 25
7.2 Inverter operation; inversion. 25
7.3 Forward direction. 25
7.4 Reverse direction. 25
7.5 Forward current . 27
7.6 Reverse current. 27
7.7 Forward voltage. 27
7.8 Reverse voltage. 27
7.9 Conducting state. 27
7.10 Valve voltage drop . 27
7.11 Non-conducting state; blocking state. 27
7.12 Firing . 27
7.13 (Valve) control pulse. 27
7.14 (Valve) firing pulse. 27
7.15 Converter blocking. 29
7.16 Converter deblocking. 29
7.17 Valve blocking . 29
7.18 Valve deblocking . 29
7.19 Phase control . 29
7.20 (Trigger) delay angle α . 29
7.21 (Trigger) advance angle β . 29
7.22 Overlap angle μ . 29
7.23 Extinction angle γ. 29
7.24 Hold-off interval . 29
7.25 Conduction interval . 31
7.26 Blocking interval; idle interval. 31
7.27 Forward blocking interval . 31
7.28 Reverse blocking interval. 31
7.29 False firing . 31
7.30 Firing failure . 31
7.31 Commutation failure. 31
7.32 Short-circuit ratio (SCR). 31
7.33 Effective short-circuit ratio (ESCR). 31
8 HVDC systems and substations . 31
8.1 HVDC system . 31
8.2 HVDC transmission system. 33
8.3 Unidirectional HVDC system . 33
8.4 Reversible HVDC system . 33
8.5 (HVDC) (system) pole. 33
8.6 (HVDC) (system) bipole . 33
8.7 Bipolar (HVDC) system . 33
8.8 Monopolar (HVDC) system. 35
8.9 HVDC substation . 35

60633 © IEC:1998 – 7 –
Clause Page
8.10 (HVDC) substation bipole. 35
8.11 (HVDC) substation pole . 35
8.12 HVDC transmission line . 35
8.13 HVDC transmission line pole. 35
8.14 Earth electrode . 35
8.15 Earth electrode line. 35
9 HVDC substation equipment . 37
9.1 AC filter . 37
9.2 DC (smoothing) reactor. 37
9.3 DC reactor arrester. 37
9.4 DC filter. 37
9.5 DC damping circuit . 37
9.6 DC surge capacitor . 37
9.7 DC bus arrester . 37
9.8 DC line arrester . 37
9.9 HVDC substation earth . 37
9.10 (DC) neutral bus capacitor . 37
9.11 (DC) neutral bus arrester . 39
9.12 Metallic return transfer breaker (MRTB) . 39
9.13 Earth return transfer breaker (ERTB) . 39
10 Modes of control . 39
10.1 Control mo
...