IEC TS 63042-102:2021
(Main)UHV AC transmission systems - Part 102: General system design
UHV AC transmission systems - Part 102: General system design
IEC TS 63042-102:2021(E) specifies the procedure to plan and design UHV transmission projects and the items to be considered.
The objective of UHV AC power system planning and design is to achieve both economic efficiency and high reliability, considering its impact on EHV systems.
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Standards Content (Sample)
IEC TS 63042-102 ®
Edition 1.0 2021-08
TECHNICAL
SPECIFICATION
colour
inside
UHV AC transmission systems –
Part 102: General system design
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IEC TS 63042-102 ®
Edition 1.0 2021-08
TECHNICAL
SPECIFICATION
colour
inside
UHV AC transmission systems –
Part 102: General system design
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.240.01; 29.240.10 ISBN 978-2-8322-1012-7
– 2 – IEC TS 63042-102:2021 © IEC 2021
CONTENTS
FOREWORD . 6
INTRODUCTION . 8
1 Scope . 9
2 Normative references . 9
3 Terms and definitions . 9
4 Objective and key issues of UHV AC transmission application . 9
4.1 Objective . 9
4.2 Key application issues . 10
5 Required studies on UHV AC system planning and design . 10
5.1 General . 10
5.2 Required studies . 11
5.3 Required analysis tools . 11
6 UHV AC system planning . 13
6.1 General . 13
6.1.1 Introductory remarks . 13
6.1.2 Transmission capacity considering routes and line types to use . 13
6.1.3 Reactive power management issues . 13
6.1.4 Environmental issues . 14
6.2 Scenario for system planning . 15
6.3 Scenario for network planning procedure . 15
6.3.1 Power transmission capacity . 15
6.3.2 System voltage . 16
6.3.3 Route selection . 16
6.3.4 Series compensation . 17
6.4 Required parameters . 17
6.5 Transmission network (topology) . 17
6.6 Reliability . 18
7 UHV AC system design. 19
7.1 General . 19
7.2 Reactive power management . 19
7.3 Reclosing schemes . 19
7.4 Delayed current zero phenomenon . 21
7.5 Protection and control system . 22
7.6 Insulation design (cost effectiveness) . 22
Annex A (informative) History of development of UHV AC transmission technologies . 24
A.1 General . 24
A.2 History of development in the USA . 24
A.3 History of development in former USSR and Russia . 24
A.4 History of development in Italy . 24
A.5 History of development in Japan . 25
A.6 History of development in China . 25
A.7 History of development in India . 25
Annex B (informative) Experiences relating to UHV AC transmission development. 26
B.1 Project development in Italy . 26
B.1.1 Background (including network development) . 26
B.1.2 Demand analysis and scenario of application. 26
B.1.3 Project overview . 26
B.1.4 UHV system planning . 27
B.1.5 UHV system design . 28
B.1.6 Laboratory and field tests . 29
B.2 Project development in China . 32
B.2.1 Background . 32
B.2.2 Project overview . 32
B.2.3 Changzhi-Nanyang-Jingmen UHV AC extension project . 33
B.2.4 Overvoltage mitigation and insulation coordination . 35
B.2.5 Insulation coordination . 36
B.2.6 Laboratory and field tests . 38
B.3 Project development in India . 40
B.3.1 Background (including network development) . 40
B.3.2 Demand analysis and scenario of application. 40
B.3.3 Project overview . 40
B.3.4 Development of 1 200 kV national test station in India . 41
B.3.5 POWERGRID's 1 200 kV transmission system . 42
B.3.6 UHV AC technology design – Insulation coordination . 43
B.3.7 Insulation design for substation . 44
B.4 Project development in Japan . 45
B.4.1 Background (including network development) . 45
B.4.2 Demand analysis and scenario of application. 46
B.4.3 Project overview . 46
B.4.4 UHV system planning . 47
B.4.5 UHV system design . 47
B.4.6 Laboratory and field tests . 50
Annex C (informative) Summary of system technologies specific to UHV AC
transmission systems . 53
C.1 Technologies used in China . 53
C.1.1 Transformer . 53
C.1.2 UHV shunt reactor and reactive compensation at tertiary side of
transformer . 54
C.1.3 Switchgear . 55
C.1.4 Series capacitor (SC) . 57
C.1.5 Gas-insulated transmission line (GIL) . 59
C.2 Technologies used in India . 60
C.2.1 UHV AC transformer . 60
C.2.2 Surge arrester . 61
C.2.3 Circuit-breakers . 62
C.2.4 Instrument transformers . 63
C.3 Technologies used in Japan . 64
C.3.1 Switch gear . 64
C.3.2 Surge arrester . 65
Bibliography . 67
Figure 1 – Analysis tool by time domain . 12
Figure 2 – Flowchart of reactive power compensation configuration . 14
Figure 3 – π equivalent circuit . 15
Figure 4 – Four-legged reactor . 20
– 4 – IEC TS 63042-102:2021 © IEC 2021
Figure 5 – One typical reclosing sequence of high speed earthing switches (HSESs) . 21
Figure 6 – Procedure for insulation design . 23
Figure B.1 – Demand situation in Italy. 26
Figure B.2 – UHV transmission lines in Italy as originally planned in '70 . 27
Figure B.3 – SPIRA system and SICRE system .
...
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