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BS EN IEC 60143-4:2024

BS EN IEC 60143-4:2024

$189.07

Series capacitors for power systems – Thyristor controlled series capacitors

Published By Publication Date Number of Pages
BSI 2024 50
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IEC 60143-4:2023 specifies the testing of thyristor controlled series capacitor (TCSC) installations used in series with transmission lines. This document also addresses issues that consider ratings for TCSC thyristor valve assemblies, capacitors, and reactors as well as TCSC control characteristics, protective features, cooling system and system operation. IEC 60143-4:2023 cancels and replaces the first edition published in 2010. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) thyristor valve testing requirements refer to IEC 62823; b) Formula (1) in Subclause 4.2 has been corrected; c) Hardware-in-the-loop (HIL) tests, Subclause 7.5.4, replaces previously specified real time protection and control system test with network simulator.

PDF Catalog

PDF Pages PDF Title
2 undefined
5 Annex ZA (normative)Normative references to international publicationswith their corresponding European publications
7 English
CONTENTS
10 FOREWORD
12 1 Scope
2 Normative references
13 3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
16 3.2 Abbreviated terms
4 Operating and rating considerations
4.1 General
17 Figures
Figure 1 ā€“ Typical nomenclature of a TCSC installation
18 Figure 2 ā€“ TCSC subsegment
Tableaux
Table 1 ā€“ Peak and RMS voltage relationships
19 4.2 TCSC characteristics
Figure 3 ā€“ TCSC steady state waveforms for control angle Ī± and conduction interval Ļƒ
20 4.3 Operating range
Figure 4 ā€“ TCSC apparent reactance characteristicsaccording to Formula (1), with Ī» = 2,5
Figure 5 ā€“ Example of TCSC operating range for POD (left) and SSR mitigation (right)
21 4.4 Reactive power rating
4.5 Power oscillation damping (POD)
4.6 SSR mitigation
22 4.7 Harmonics
4.8 Control interactions between TCSCs in parallel lines
4.9 Operating range, overvoltages and duty cycles
4.9.1 Operating range
23 4.9.2 Transient overvoltages
4.9.3 Duty cycles
5 Valve control
5.1 Triggering system
Figure 6 ā€“ Valve base electronics (VBE)
24 5.2 System aspects
5.3 Normal operating conditions
Figure 7 ā€“ Valve electronics (VE)
25 5.4 Valve firing during system faults
5.5 Actions at low line current
5.6 Monitoring
6 Ratings
6.1 General
26 6.2 Capacitor rating
6.3 Reactor rating
6.4 Thyristor valve rating
6.4.1 General
6.4.2 Current capability
27 6.4.3 Voltage capability
28 Figure 8 ā€“ Thyristor valve voltage in a TCSC
29 6.5 Varistor rating
30 6.6 Insulation level and creepage distance
7 Tests
7.1 General
7.2 Test of the capacitor
7.2.1 General
7.2.2 Routine tests
31 7.2.3 Type tests
7.2.4 Special test (ageing test)
7.3 Tests of the TCSC reactor
7.3.1 General
7.3.2 Routine tests
32 7.3.3 Type tests
7.3.4 Special tests
7.4 Tests of thyristor valves
7.4.1 General
7.4.2 Routine tests
33 7.4.3 Type tests
7.5 Tests of protection and control system
7.5.1 General
7.5.2 Routine tests
34 7.5.3 Type tests
7.5.4 Special tests āˆ’ Hardware-in-the-loop (HIL) tests
35 8 Guidance for selection of rating and operation
8.1 General
Figure 9 ā€“ Typical block diagram of a real time TCSC protectionand control system simulation environment
36 8.2 Thyristor controlled series capacitor
8.2.1 AC transmission system
37 8.2.2 TCSC operational objectives
8.2.3 TCSC ratings
38 Figure 10 ā€“ Example of operating range diagram for TCSC
39 8.3 Thyristor valves
8.4 Capacitors and reactors
8.4.1 General
8.4.2 Capacitor considerations
8.4.3 Reactor considerations
40 8.5 Fault duty cycles for varistor rating
Table 2 ā€“ Typical external fault duty cycle with unsuccessful high speed auto-reclosing
Table 3 ā€“ Typical duty cycle for internal fault with successful high speed auto-reclosing
41 8.6 Valve cooling system
8.7 TCSC control and protection
8.7.1 General
Table 4 ā€“ Typical duty cycle for internal fault with unsuccessfulhigh speed auto-reclosing
42 8.7.2 Control
44 8.7.3 Protection
8.7.4 Monitoring and recording
45 8.8 Precommissioning and commissioning tests
8.8.1 General
8.8.2 Pre-commissioning tests
46 8.8.3 Station tests
48 Bibliography

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BS EN IEC 60143-4:2024
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