IEC TR 62978:2017

IEC TR 62978 ®
Edition 1.0 2017-09
TECHNICAL
REPORT
colour
inside
HVDC installations – Guidelines on asset management
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IEC TR 62978 ®
Edition 1.0 2017-09
TECHNICAL
REPORT
colour
inside
HVDC installations – Guidelines on asset management

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.240.01; 03.100.10 ISBN 978-2-8322-4829-4

− 2 − IEC TR 62978:2017 © IEC 2017
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 9
3 Terms and definitions . 9
4 HVDC asset . 12
4.1 Asset background . 12
4.2 Asset facilities . 13
4.3 Asset components and layout arrangement . 13
5 Asset management policy and strategy . 16
5.1 General . 16
5.2 Common policy and practices . 17
5.3 Asset management framework . 18
6 Risk management . 19
6.1 General . 19
6.2 Risk management requirements . 20
6.3 Common policy and practices . 21
7 Asset management life cycle activities . 22
7.1 General . 22
7.2 Asset management decision process . 22
7.3 Life cycle costing . 24
7.3.1 General . 24
7.3.2 Forecasting O&M costs due to asset failures . 24
7.3.3 Forecasting capital replacement costs due to asset failures . 25
7.4 Spares strategies . 26
7.5 Life extension strategies . 26
7.6 Run to failure strategies . 28
7.7 Refurbishment of HVDC system . 28
8 Change management . 28
8.1 General . 28
8.2 Common policy and practices . 29
8.3 Development of resources in HVDC system . 29
8.3.1 General . 29
8.3.2 Skill retention and development in HVDC system . 29
8.3.3 Factors in deciding level of HVDC skill retention . 29
8.3.4 Skill retention under different organizational relationships . 30
8.3.5 Establishing a productive work culture . 30
8.3.6 Alliances and partnership . 31
8.3.7 Maintaining capabilities over the long term . 31
9 HVDC maintenance . 31
9.1 General . 31
9.2 Common policy and practices . 33
9.3 Special tools and maintenance equipment . 34
9.4 Impact of major spares . 35
9.5 Strategic spares . 35
9.5.1 Philosophy and common practices . 35

9.5.2 Sharing of strategic spares between users/utilities. 37
9.5.3 Storage considerations . 38
9.6 Work safety . 38
9.7 HVDC thyristor valve maintenance – Periodic maintenance . 39
9.8 Converter transformer maintenance . 39
9.9 Converter transformer replacement . 40
9.10 Reactor maintenance . 40
10 Asset management of co-owned HVDC project . 41
10.1 General . 41
10.2 Project planning stage . 41
10.3 Project implementation and commissioning . 41
10.4 HVDC system maintenance management after commissioning . 41
10.5 HVDC system operation management . 41
11 HVDC reliability and availability . 42
11.1 General . 42
11.2 Performance monitoring policy and practices . 43
11.3 General requirements on performance monitoring of HVDC system . 44
11.4 Availability and reliability measurement . 44
11.4.1 General . 44
11.4.2 Scheduled maintenance outages . 45
11.4.3 Outage and curtailment times . 45
11.5 Verification of availability and reliability performance . 46
11.6 Availability and reliability calculations . 46
11.7 Reliability criteria of HVDC control and protection system . 46
11.8 Alternative methods in achieving high performance . 47
12 Documentation and records . 48
12.1 General . 48
12.2 Common policy and practices . 48
12.3 Information management . 48
12.4 Types of documentation . 50
12.5 Document identification . 50
12.6 "As-built" drawings and data . 50
12.7 Submittal quantities and schedule . 51
12.8 Inventory list . 51
12.9 System studies, equipment specifications, calculations and drawings . 51
12.9.1 General . 51
12.9.2 Control system hardware design document . 52
12.9.3 Digital control system software design document . 52
12.10 Operation manuals . 53
12.11 Maintenance manuals . 53
13 Training requirements . 54
13.1 General . 54
13.2 Common policy and practices . 54
13.3 Training for design engineers . 55
13.4 Training for staff participating in commissioning . 55
13.5 Training for operators and maintenance staff . 55
13.6 Training on communication system . 56
13.7 Training support . 56

− 4 − IEC TR 62978:2017 © IEC 2017
13.8 Advance or intensive training at factory .
...