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BS EN IEC 60143-4:2024 – TC

BS EN IEC 60143-4:2024 – TC

$246.62

Tracked Changes. Series capacitors for power systems – Thyristor controlled series capacitors

Published By Publication Date Number of Pages
BSI 2024 126
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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
78 undefined
81 Annex ZA (normative)Normative references to international publicationswith their corresponding European publications
83 English
CONTENTS
86 FOREWORD
88 1 Scope
2 Normative references
89 3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
92 3.2 Abbreviated terms
4 Operating and rating considerations
4.1 General
93 Figures
Figure 1 – Typical nomenclature of a TCSC installation
94 Figure 2 – TCSC subsegment
Tableaux
Table 1 – Peak and RMS voltage relationships
95 4.2 TCSC characteristics
Figure 3 – TCSC steady state waveforms for control angle α and conduction interval σ
96 4.3 Operating range
Figure 4 – TCSC apparent reactance characteristicsaccording to Formula (1), with λ = 2,5
Figure 5 – Example of TCSC operating range for POD (left) and SSR mitigation (right)
97 4.4 Reactive power rating
4.5 Power oscillation damping (POD)
4.6 SSR mitigation
98 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
99 4.9.2 Transient overvoltages
4.9.3 Duty cycles
5 Valve control
5.1 Triggering system
Figure 6 – Valve base electronics (VBE)
100 5.2 System aspects
5.3 Normal operating conditions
Figure 7 – Valve electronics (VE)
101 5.4 Valve firing during system faults
5.5 Actions at low line current
5.6 Monitoring
6 Ratings
6.1 General
102 6.2 Capacitor rating
6.3 Reactor rating
6.4 Thyristor valve rating
6.4.1 General
6.4.2 Current capability
103 6.4.3 Voltage capability
104 Figure 8 – Thyristor valve voltage in a TCSC
105 6.5 Varistor rating
106 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
107 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
108 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
109 7.4.3 Type tests
7.5 Tests of protection and control system
7.5.1 General
7.5.2 Routine tests
110 7.5.3 Type tests
7.5.4 Special tests − Hardware-in-the-loop (HIL) tests
111 8 Guidance for selection of rating and operation
8.1 General
Figure 9 – Typical block diagram of a real time TCSC protectionand control system simulation environment
112 8.2 Thyristor controlled series capacitor
8.2.1 AC transmission system
113 8.2.2 TCSC operational objectives
8.2.3 TCSC ratings
114 Figure 10 – Example of operating range diagram for TCSC
115 8.3 Thyristor valves
8.4 Capacitors and reactors
8.4.1 General
8.4.2 Capacitor considerations
8.4.3 Reactor considerations
116 8.5 Fault duty cycles for varistor rating
Table 2 – Typical external fault duty cycle with unsuccessful high speed auto-reclosing
Table 3 – Typical duty cycle for internal fault with successful high speed auto-reclosing
117 8.6 Valve cooling system
8.7 TCSC control and protection
8.7.1 General
Table 4 – Typical duty cycle for internal fault with unsuccessfulhigh speed auto-reclosing
118 8.7.2 Control
120 8.7.3 Protection
8.7.4 Monitoring and recording
121 8.8 Precommissioning and commissioning tests
8.8.1 General
8.8.2 Pre-commissioning tests
122 8.8.3 Station tests
124 Bibliography

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BS EN IEC 60143-4:2024 - TC
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