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Control and protection equipment of high-voltage direct current (HVDC) transmission system - Part 5: DC line fault location device
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Control and protection equipment of high-voltage direct current (HVDC) transmission system -- Part 5: DC line fault location
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Basic data
| Standard ID | GB/T 22390.5-2026 (GB/T22390.5-2026) |
| Description (Translated English) | Control and protection equipment of high-voltage direct current (HVDC) transmission system - Part 5: DC line fault location device |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | K45 |
| Classification of International Standard | 29.240.01 |
| Word Count Estimation | 22,237 |
| Date of Issue | 2026-01-28 |
| Date of Implementation | 2026-08-01 |
| Older Standard (superseded by this standard) | GB/T 22390.5-2008 |
| Issuing agency(ies) | State Administration for Market Regulation, Standardization Administration of China |
GB/T 22390.5-2026: Control and protection equipment of high-voltage direct current (HVDC) transmission system - Part 5: DC line fault location device
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 29.240.01
CCSK45
National Standards of the People's Republic of China
Replaces GB/T 22390.5-2008
Control and protection equipment for high voltage direct current transmission systems
Part 5.DC Line Fault Location Device
Published on 2026-01-28
Implemented on August 1, 2026
State Administration for Market Regulation
The State Administration for Standardization issued a statement.
Table of contents
Preface III
Introduction V
1.Scope 1
2 Normative References 1
3.Terms and Definitions 1
4.Technical Requirements 2
5.Test Methods 8.
6.Inspection Rule 11
7.Markings, labels, and instruction manuals 12
8 Packaging, transportation, and storage 13
9.Completeness of Supply 14
10 Quality Assurance 14
Foreword
This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents".
Drafting.
This document is Part 5 of GB/T 22390 "Control and Protection Equipment for High Voltage Direct Current Transmission Systems". GB/T 22390 has been published.
The following parts were included.
---Part 1.Operational Personnel Control System;
---Part 2.AC/DC System Station Control Equipment;
---Part 3.DC System Polar Control Equipment;
---Part 4.DC System Protection Equipment;
---Part 5.DC Line Fault Location Device;
---Part 6.Transient Fault Recording Device for Converter Stations
This document replaces GB/T 22390.5-2008 "Control and Protection Equipment for High Voltage Direct Current Transmission Systems - Part 5.DC Line Faults".
Compared with GB/T 22390.5-2008, the main technical changes in the "Positioning Device" standard, apart from structural adjustments and editorial modifications, are as follows.
---The scope of application of this document has been changed. This document applies to DC line faults at the station end of ±500kV and below high-voltage DC transmission systems.
Positioning device (see Chapter 1, Chapter 1 of the.2008 edition);
---Added the terms "time synchronization system," "fault location," and "location error," along with their definitions (see 3.1, 3.2, and 3.3);
---The "Ambient Temperature" setting under "Normal Operating Atmospheric Conditions" has been modified (see 4.1.1,.2008 version 4.1.1);
---Special environmental conditions have been added (see 4.1.6);
---The permissible deviation for the rated voltage of the AC power supply has been changed (see 4.2.1,.2008 version 4.2.1);
---The permissible deviation of the rated voltage of the DC power supply has been changed (see 4.2.2,.2008 version 4.2.2);
---Added configuration requirements for the device, including device composition, configuration independence, configuration requirements, power supply circuit, and sensor requirements (see...)
4.3);
---The device functional requirements have been modified, adding time calibration, anomaly alarms, and support for receiving timing signals from the BeiDou satellite navigation system.
According to document format, network security protection, and other requirements (see 4.4, 4.3 in the.2008 edition);
---The performance requirements and specifications of the device have been revised, and the description of the performance requirements has been adjusted to avoid ambiguity (see 4.5,.2008 version).
4.4);
---Changed "Heating under single fault conditions" to "Heat generation under single fault conditions", and removed the requirement for winding insulation material temperature.
See section 4.6.1, or section 4.5.1 in the.2008 edition;
---The insulation requirements for the device have been changed (see 4.8, 4.7 in the.2008 edition);
---Added requirements for humid and hot conditions inside the device (see 4.9);
---The electromagnetic compatibility requirements for the device have been changed; see (4.11, 4.10 in the.2008 edition);
---An alternative to the continuous power-on test has been added (see 4.12);
---The phrase "extreme range limits of ambient temperature" has been changed to "extreme range limits of ambient temperature test" (see 5.4,.2008 edition).
(5.4)
---The requirements for device functional testing and device technical performance testing have been revised (see 5.6 and 5.7,.2008 versions of 5.6 and 5.7);
---The requirements for electromagnetic compatibility testing have been changed (see 5.13,.2008 version 5.13);
---The requirements for continuous power-on testing have been changed (see 5.14,.2008 version 5.14);
---The "Conformance testing of communication protocols" has been removed (see 5.16 in the.2008 edition);
---Added conditions for type testing of the device (see 6.2.1);
---The sampling requirements for type testing have been removed (see 6.2.3.1 in the.2008 version);
---The requirements for safety signs in relevant parts of the device and in the instruction manual have been deleted (see 7.1.7 in the.2008 edition);
---The description of compliance with the company’s product standards has been removed from the quality assurance section (see 10.1 in the.2008 edition).
Please note that some content in this document may involve patents. The issuing organization of this document assumes no 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 on Standardization of High Voltage Direct Current Transmission Equipment (SAC/TC333).
This document was drafted by. State Grid Economic and Technological Research Institute Co., Ltd., Xi'an High Voltage Apparatus Research Institute Co., Ltd., and Nanjing NARI Group Corporation.
Bao Electric Co., Ltd., XJ Electric Co., Ltd., China Power Precision Engineering Co., Ltd., Shandong Kehui Electric Automation Co., Ltd.
The company, China Electric Power Research Institute Co., Ltd., Xuchang Kaipu Testing and Research Institute Co., Ltd., State Grid Beijing Electric Power Company, State Grid No. 4
Sichuan Electric Power Company Ultra-High Voltage Branch, Nanjing NARI Relay Protection Engineering Technology Co., Ltd., China Southern Power Grid Co., Ltd. Ultra-High Voltage Transmission
The company, Henan High Voltage Apparatus Research Institute Co., Ltd., Guangdong Power Grid Co., Ltd. Electric Power Research Institute, China Southern Power Grid Co., Ltd.
Ren Company Ultra-High Voltage Transmission Company Electric Power Research Institute, Guangdong Fude Electronics Co., Ltd., Shandong University Electric Power Technology Co., Ltd., Yunnan Electric Power
State Grid Corporation of China Electric Power Research Institute, China Power Engineering Consulting Group South China Electric Power Design Institute Co., Ltd., State Grid Zhejiang Electric Power Co., Ltd.
Electric Power Research Institute of Limited Company.
The main drafters of this document are. Pu Ying, Zhou Huigao, Chen Yulin, Gao Zijian, Wu Qingfan, Huang Chao, Guo Ningming, Xu Fan, Li Luzhao, and Xie Guoping.
Yang Xingchao, Liu Jiyun, He Xiaoyu, Liu Luoyang, Zhang Jianfeng, Zou Yansheng, Yang Xiaohui, Xing Wenqi, Jiang Liantao, Zhang Yining, Liu Xiang, Meng Lingjun, Lu Yao,
Lu Yajun, Yin Jian, Xu Zhi, Cao Junlong, Wang Jiangtian, Du Tao, Cao Wenbin, Xu Feng.
This document was first published in.2008, and this is its first revision.
Introduction
Control and protection equipment is a core component of high-voltage direct current transmission systems, mainly encompassing operator control systems and AC/DC station control systems.
The system includes DC polarity control system, DC system protection, transient fault recording device, DC line fault location device, etc. These devices work together to achieve [the desired effect].
This enables comprehensive control and protection of the DC transmission system.
GB/T 22390 "Control and Protection Equipment for High Voltage Direct Current Transmission Systems" aims to standardize the control and protection equipment for high voltage direct current transmission systems.
The design, manufacturing, inspection and usage methods are proposed to consist of the following six parts.
---Part 1.Operations Control System. The purpose is to standardize the technology of the operations control system for high-voltage direct current (HVDC) transmission systems.
Requirements, test methods, inspection rules, packaging, transportation, storage, marking, labeling, instructions for use, completeness of supply and quality assurance
Certificates, etc.
---Part 2.Station Control Equipment for AC/DC Systems. The purpose is to standardize the station control equipment for AC/DC systems in high-voltage direct current (HVDC) transmission systems.
Technical requirements, test methods, inspection rules, packaging, transportation, storage, marking, labeling, instruction manual, completeness of supply and quality
Quantity guarantee, etc.
---Part 3.DC System Pole Control Equipment. The purpose is to standardize the technology of DC system pole control equipment in high-voltage direct current (HVDC) transmission systems.
Requirements, test methods, inspection rules, packaging, transportation, storage, marking, labeling, instructions for use, completeness of supply and quality assurance
Certificates, etc.
---Part 4.DC System Protection Equipment. The purpose is to standardize the technology of DC system protection equipment for high-voltage direct current (HVDC) transmission systems.
Requirements, test methods, inspection rules, packaging, transportation, storage, marking, labeling, instructions for use, completeness of supply and quality assurance
Certificates, etc.
---Part 5.DC Line Fault Location Devices. The purpose is to standardize DC line fault location devices in high-voltage direct current (HVDC) transmission systems.
Technical requirements, test methods, inspection rules, packaging, transportation, storage, marking, labeling, instruction manual, and completeness of supply.
Including quality assurance, etc.
---Part 6.Transient Fault Recording Device for Converter Stations. The purpose is to standardize transient fault recording in converter stations of high-voltage direct current transmission systems.
Technical requirements, test methods, inspection rules, packaging, transportation, storage, marking, labeling, instruction manual, and complete set of equipment supplied.
Sexuality and quality assurance, etc.
Control and protection equipment for high voltage direct current transmission systems
Part 5.DC Line Fault Location Device
1 Scope
This document specifies the technical requirements, test methods, inspection rules, and packaging for fault location devices on DC lines of high-voltage direct current transmission systems.
Transportation, storage, marking, labeling, instruction manuals, completeness of supply, and quality assurance, etc.
This document applies to fault location devices for DC lines at the station end of ±500kV and below high-voltage DC transmission systems (hereinafter referred to as "devices").
2 Normative references
The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.
For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.
This document.
GB/T 2887-2011 General Specifications for Computer Venues
GB/T 2900.49 Electrical Engineering Terminology - Power System Protection
GB/T 4208-2017 Degrees of protection provided by enclosures (IP code)
GB/T 7261-2016 Basic Test Methods for Relay Protection and Safety Automatic Devices
GB/T 9361-2011 Safety Requirements for Computer Sites
GB/T 9969 General Rules for Instructions for Use of Industrial Products
GB/T 11287-2000 Electrical relays – Part 21.Vibration, shock, impact and earthquake of measuring relays and protective devices
Experiment 1.Vibration Experiment (Sine Wave)
GB/T 13498 Terminology for High Voltage Direct Current Transmission
GB/T 14537-1993 Shock and impact tests on measuring relays and protective devices
GB/T 14598.24 Measuring relays and protective devices – Part 24.Transient data exchange (COMTRADE) for power systems
Use format
GB/T 14598.26-2025 Measuring relays and protective devices – Part 26.Electromagnetic compatibility requirements
GB/T 14598.27-2025 Measuring relays and protective devices – Part 27.Product safety requirements
GB/T 17626.9-2011 Electromagnetic compatibility testing and measurement techniques - Pulse magnetic field immunity test
GB/T 17626.10-2017 Electromagnetic compatibility testing and measurement techniques - Damped oscillating magnetic field immunity test
GB/T 32890 Engineering Application Model of Relay Protection and IEC 61850
DL/T 357-2019 Technical Conditions for Traveling Wave Fault Location Devices for Transmission Lines
NB/T 10448-2020 Specification for Testing Traveling Wave Fault Location Devices for Transmission Lines
3 Terms and Definitions
The terms and definitions defined in GB/T 2900.49 and GB/T 13498, as well as the following terms and definitions, apply to this document.
3.1
A system that uses a standard time source to provide a unified time synchronization signal for DC line fault location devices.
...
