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GB/T 43727-2024: Thyristor valves for thyristor controlled series capacitors(TCSC) - Electrical testing
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GB/T 43727-2024: Thyristor valves for thyristor controlled series capacitors(TCSC) - Electrical testing

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ICS 29.240.99 CCSK46 National Standards of People's Republic of China Thyristor Valves for Thyristor Controlled Series Capacitors (TCSC) Electrical testing Electrical testing Released on 2024-03-15 2024-10-01 Implementation State Administration for Market Regulation The National Standardization Administration issued

Table of Contents

Preface III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Thyristor Controlled Series Capacitor Device (TCSC) Valves and Valve Operation 4 4.1 TCSC and TCSC valve 4 4.2 Current and voltage of TCSC valve in capacitive lift mode 5 4.3 TCSC typical operation mode 7 5 General requirements 8 5.1 Type test execution guidelines 8 5.2 Insulation test conditions 9 5.3 Operating test conditions 10 5.4 Criteria for successful type testing 10 6 Experimental Overview 11 7 Insulation test of valve terminal to valve chamber 12 7.1 Test Purpose 12 7.2 Sample 13 7.3 Test requirements 13 8 Insulation test between valve terminals 14 8.1 Test Purpose 14 8.2 Test sample 14 8.3 Test requirements 14 9 Periodic triggering and shut-off test 15 9.1 Test Purpose 15 9.2 Sample 16 9.3 Test requirements 16 10 Fault current test 19 10.1 Test Purpose 19 10.2 Test sample 19 10.3 Test requirements 19 11 Valve electromagnetic interference resistance test 20 11.1 Test Purpose 20 11.2 Sample 20 11.3 Test requirements 20 12 Special performance test 20 12.1 Test Purpose 20 12.2 Sample 21 12.3 Test requirements 21 13 Routine test 21 13.1 General 21 13.2 Appearance Inspection 21 13.3 Wiring Check 21 13.4 Voltage balancing circuit inspection 21 13.5 Withstand voltage test 21 13.6 Partial discharge test 21 13.7 Inspection of auxiliary components 21 13.8 Trigger Check 21 13.9 Cooling system pressure test 22 14 Description of type test results 22 Appendix A (Informative) Operating conditions and rated parameters of thyristor valves for thyristor-controlled series capacitor devices 23 A.1 Overview 23 A.2 TCSC characteristics 23 A.3 Operating range 24 A.4 Rated reactive power 24 A.5 Power Oscillation Damping (POD) 24 A.6 Subsynchronous Resonance Suppression 25 A.7 Harmonics 25 A.8 Control of interaction between multiple TCSCs in parallel circuits 25 A.9 Operating range, overvoltage and load cycle 25 Appendix B (Informative) Valve Component Fault Tolerance 27 Reference 28

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents" Drafting. This document is equivalent to IEC 62823.2019 "Electrical testing of thyristor valves for thyristor controlled series capacitors (TCSC)". The following minimal editorial changes were made to this document. ---Added formula number; --- Add "Note 3" in 3.7 (see 3.7); --- Add "Note" in 5.2.1 and 8.2 (see 5.2.1 and 8.2); ---Change the name of the insulation test between valve terminals and valve chamber and the insulation test between valve terminals from "AC test" to "AC voltage test" (See Table 2, 7.3.1, 8.3.1 and 8.3.2.1); --- Correct the "maintain test voltage Utv11min" in the AC voltage insulation test procedure between valve terminals to "maintain test voltage Utv1 15s”(see 8.3.1.2); --- Change the text symbol "SIPLV" of the valve arrester operating impulse protection level to "USIPLv" to conform to the writing rules of the quantity symbol. Then (see 8.3.2.1). Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document was proposed by the China Electrical Equipment Industry Association. This document is under the jurisdiction of the National Technical Committee for Standardization of Power Electronics Systems and Equipment (SAC/TC60). This document was drafted by. Xi'an High Voltage Electric Appliance Research Institute Co., Ltd., Xi'an Power Electronics Technology Research Institute Co., Ltd., Yunnan Electric China Electric Power Research Institute of China Southern Power Grid Co., Ltd., China Southern Power Grid Co., Ltd. Ultra-high Voltage Transmission Company Maintenance and Test Center, Nanjing NARI Jibao Electric Co., Ltd., Xuji Electric Co., Ltd., Liaoning Rongxin Xingye Electric Power Technology Co., Ltd., State Grid Economic and Technological Research Institute Co., Ltd., State Grid Zhejiang Electric Power Co., Ltd. Electric Power Research Institute, Xi'an ABB Power Capacitor Co., Ltd., Zhejiang University City College, China Southern Power Grid Co., Ltd. Ultra-high Voltage Transmission Company Liuzhou Branch, China Southern Power Grid Co., Ltd. Ultra-high Voltage Transmission Company Kunming Branch Bureau, Xi'an Xidian Electric Power System Co., Ltd. The main drafters of this document are. Hu Zhilong, Wei Hongqi, Wang Yuxin, Xu Zhi, Li Yuan, Xu Fan, Tang Jinkun, Yu Xiaoling, Dong Tianhua, Zhou Qiwen, Huang Yongrui, Yang Xiaohui, Wang Xing, Zhang Kun, Yang Yong, Shao Xianjun, Guo Qingwen, Wei Zheng, Li Jing, Zou Yansheng, Liang Suning, Huang Cong, Wang Jialong, Huang Chao, Wang Xiaoling and Ma Yuanshe. Thyristor Valves for Thyristor Controlled Series Capacitors (TCSC) Electrical testing

1 Scope

This document specifies routine and type tests on thyristor valves for use in thyristor controlled series capacitor (TCSC) installations for AC transmission. The tests specified in this document are for air-insulated valves operating in capacitive lift mode or bypass mode. For valves with other insulation types For valves operated in the inductive lift mode, the test requirements and acceptance criteria shall be determined by agreement between the purchaser and the seller.

2 Normative references

The contents of the following documents constitute the essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. IEC 60060-1.2010 High-voltage test technology Part 1.General definitions and test requirements (High-voltagetesttech- Note. GB/T 16927.1-2011 High voltage test technology Part 1.General definitions and test requirements (IEC 60060-1.2010, MOD) IEC 60071-1 Insulation coordination - Part 1.Definitions, principles and rules Definitions, principles and rules) Note. GB/T 311.1-2012 Insulation coordination Part 1.Definitions, principles and rules (IEC 60071-1.2006, MOD) IEC 60071-2 Insulation coordination-Part 2.Application guide Note. GB/T 311.2-2013 Insulation coordination Part 2.Guidelines for use (IEC 60071-2.1996, MOD) urements Note. GB/T 7354-2018 High voltage test technology Partial discharge measurement (IEC 60270.2000, MOD)

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Thyristor valve The electrical and mechanical combination of a thyristor stage, including all connections, auxiliary components and mechanical structure, capable of being installed with a thyristor controlled series capacitor The phase reactors are connected in series. 3.2 Valve section An electrical combination of several thyristor stages and other components that scales to give the electrical performance of a complete valve. Note. This term is mainly used to define the test sample during valve testing. 3.3 Thyristor level The component of a thyristor valve, consisting of an anti-parallel thyristor pair and its directly connected auxiliary components and reactor (if any). ...