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GB/T 45906.5-2025: Substation secondary system - Part 5: Protection and control system with their equipment’s requirements
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| GB/T 45906.5-2025 | English | 439 |
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Substation secondary system - Part 5: Protection and control system with their equipment’s requirements
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GB/T 45906.5-2025
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Basic data
| Standard ID | GB/T 45906.5-2025 (GB/T45906.5-2025) |
| Description (Translated English) | Substation secondary system - Part 5: Protection and control system with their equipment��s requirements |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | F20 |
| Classification of International Standard | 29.240.10 |
| Word Count Estimation | 22,269 |
| Date of Issue | 2025-08-01 |
| Date of Implementation | 2026-02-01 |
| Issuing agency(ies) | State Administration for Market Regulation, Standardization Administration of China |
GB/T 45906.5-2025: Substation secondary system - Part 5: Protection and control system with their equipment’s requirements
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT45906.5-2025
ICS 29.240.10
CCSF20
National Standard of the People's Republic of China
Substation secondary system
Part 5.Protection, control and related equipment
Released on August 1, 2025
Implementation on February 1, 2026
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface III
Introduction IV
1 Scope 1
2 Normative references 1
3 Terms and Definitions 2
4 Abbreviations 3
5 Basic Requirements 3
5.1 Normal working conditions 3
5.2 Electromagnetic Compatibility 4
5.3 Network Security Protection 4
6 Relay protection and safety automation related equipment 5
6.1 Relay protection and safety automatic devices 5
6.2 Recording and analysis equipment 5
7 Automation Equipment 7
7.1 Measurement and Control Device 7
7.2 Data Communication Gateway 7
7.3 Switch 9
7.4 Clock Synchronization Device 10
7.5 Synchronized Phasor Measurement Device 11
7.6 Phase Data Concentrator 11
8 Power metering and power quality equipment 12
8.1 General Provisions 12
8.2 Functional Requirements 12
8.3 Performance requirements 13
9 Collection execution equipment 13
9.1 General Provisions 13
9.2 Functional Requirements 13
9.3 Performance requirements 14
10 Communication equipment 14
10.1 General Provisions 14
10.2 Functional Requirements 14
10.3 Performance Requirements 15
11 Auxiliary monitoring equipment 15
11.1 General Provisions 15
11.2 Functional Requirements 16
11.3 Performance requirements 17
Preface
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 Part 5 of GB/T 45906 "Substation Secondary Systems". GB/T 45906 has been published in the following parts.
--- Part 1.General requirements;
--- Part 2.Data and models;
--- Part 3.Communication message specifications;
--- Part 4.Network security protection;
--- Part 5.Protection, control and related equipment;
--- Part 6.Station monitoring system;
--- Part 7.Centralized monitoring system;
--- Part 8.Electrical operation error prevention;
--- Part 9.Construction specifications;
--- Part 10.Testing and inspection.
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 Electricity Council.
This document is issued by the National Grid Operation and Control Standardization Technical Committee (SAC/TC446), the National Measuring Relay and Protection Equipment Standardization Technical Committee
It is under the jurisdiction of the Static Relay Protection Device Subcommittee of the Standardization Technical Committee (SAC/TC154/SC1).
This document was drafted by. China Electric Power Research Institute Co., Ltd., State Grid Corporation of China, China Southern Power Grid Co., Ltd.,
Nanjing NARI Relay Protection Electric Co., Ltd., Beijing Sifang Relay Protection Engineering Technology Co., Ltd., NARI Technology Co., Ltd., and Xuji Electric
Co., Ltd., Changyuan Shenrui Jibao Automation Co., Ltd., Anhui Nanrui Jiyuan Power Grid Technology Co., Ltd., China Southern Power Grid Energy Development Research Institute
Research Institute Co., Ltd., State Grid Corporation of China Information and Communication Branch, State Grid Nanjing Automation Co., Ltd., State Grid Economic and Technical
Research Institute Co., Ltd., State Grid Shandong Electric Power Company, State Grid Jiangsu Electric Power Company, State Grid Sichuan Electric Power Company, State Grid Henan Electric Power Company
Provincial Electric Power Company, State Grid Anhui Electric Power Co., Ltd., State Grid Zhejiang Electric Power Co., Ltd., State Grid Jibei Electric Power Co., Ltd., State Grid Anhui Electric Power Co., Ltd.
Power Co., Ltd., State Grid Hebei Electric Power Co., Ltd., State Grid Gansu Electric Power Company, and State Grid Beijing Electric Power Company.
The main drafters of this document are. Zhou Zexin, Liu Yu, Liu Dongchao, Li Yong, Chang Naichao, Dong Yu, Lü Pengfei, Zhou Hualiang, Sun Yang, Dou Xuewei,
Hu Guiping, Hong Xi, Bai Jingfen, Wu Fangying, Fang Wei, Li Zifan, Liu Zhiren, Liu Yadong, Wang Dehui, Wei Dehua, Lü Hang, Leng Xiangbiao, Lu Zhaoyan,
Zhang Zhi, Li Zhongqing, Zhang Jinhu, Liu Huihai, Yang Jianxu, Kong Fei, Yu Bin, Wu Jiayi, Yuan Long, Yang Guosheng, Zhang Haiyan, Tian Baojiang, Li Mouying,
Guo Yarong, Wang Ye, Ren Xuchao, Li Youjun, Ni Saisai, Liu Jun, Chen Fang, Li Ruishan, Zhang Jiaqi, Fang Yuan, Li Jing, Li Jie, Wang Xiaoxu, Wang Xingguo,
Practice martial arts.
introduction
In order to meet the transformation and development needs of the substation secondary system, the top-level design of the overall architecture, functions, data and equipment of the substation secondary system is realized.
Design, promote the optimization and upgrading of new power system equipment manufacturing industry, improve the overall performance and reliability level of substation secondary system, formulate this system
List standards.
GB/T 45906 "Substation Secondary System" comprehensively covers general requirements, equipment system functional requirements, project implementation and testing, etc.
The substation secondary system is planned to consist of 10 parts.
--- Part 1.General requirements. The purpose is to standardize the overall requirements and reliability, functional integration, information interaction,
Network security and other technical requirements.
--- Part 2.Data and Model. The purpose is to standardize the substation secondary system data and model framework, clarify data classification, collection
Processing requirements, modeling methods, and model configuration processes.
--- Part 3.Communication message specification. The purpose is to standardize the communication protocol set of the substation secondary system, clarify the data objects and communication
The implementation method of the service.
--- Part 4.Network security protection. The purpose is to standardize the technical requirements for security protection of substation secondary systems.
--- Part 5.Protection control and related equipment. The purpose is to standardize substation relay protection and safety automatic devices, automation equipment
Technical requirements for power equipment, power metering and power quality equipment, collection and execution equipment, communication equipment and auxiliary monitoring equipment.
--- Part 6.Station Monitoring System. The purpose is to standardize the technical requirements of the station monitoring system, including functions, performance, information exchange, etc.
--- Part 7.Centralized monitoring system. The purpose is to standardize the system architecture, functions, performance, information exchange, and
Mutual technical requirements.
--- Part 8.Electrical operation error prevention. The purpose is to standardize the overall requirements, architecture, functions and
Energy, performance and application requirements.
--- Part 9.Construction Specifications. The purpose is to standardize the overall requirements, design principles, process control and construction of substation secondary system engineering.
System and technical requirements.
--- Part 10.Testing and inspection. The purpose is to standardize the general principles and requirements for the inspection of substation secondary system equipment and systems.
Please wait.
Substation secondary system
Part 5.Protection, control and related equipment
1 Scope
This document specifies the substation secondary system relay protection and safety automatic related equipment, automation equipment, power metering and power quality equipment
Technical requirements for equipment, data collection and execution equipment, communication equipment and auxiliary monitoring equipment.
This document applies to the design, development, testing, construction, operation, maintenance and overhaul of protection and control and related equipment of substations.
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.
GB/T 9361 Safety requirements for computer sites
GB/T 11287-2000 Electrical relays Part 21.Measurement of vibration, shock, impact and earthquake of relays and protective devices
Test Part 1.Vibration Test (Sine)
GB/T 13729 Telecontrol Terminal Equipment
GB/T 14285 Technical Specification for Relay Protection and Safety Automatic Devices
GB/T 14537-1993 Shock and impact tests on measuring relays and protective devices
GB/T 14598.24 Measuring relays and protection devices Part 24.Power system transient data exchange (COMTRADE) communication
Use format
GB/T 15145 General technical requirements for transmission line protection devices
GB/T 17215.211 Electrical measuring equipment (AC) General requirements, tests and test conditions Part 11.Measuring equipment
GB/T 17215.301 Special requirements for multi-function electric energy meters
GB/T 17215.303 Particular requirements for alternating current measuring equipment Part 3.Digital energy meters
GB/T 17215.321 Particular requirements for electrical measuring equipment (AC) Part 21.Static active energy meters (Class A, Class B,
C, D, and E grades)
GB/T 17626 (all parts) Electromagnetic compatibility test and measurement technology
GB/T 19862 General requirements for power quality monitoring equipment
GB/T 20840.7 Instrument transformers Part 7.Electronic voltage transformers
GB/T 20840.8 Instrument transformers Part 8.Electronic current transformers
GB/T 26865.2 Power system real-time dynamic monitoring system Part 2.Data transmission protocol
GB/T 32901 General technical requirements for relay protection in intelligent substations
GB/T 33703 Observation Specifications for Automatic Weather Stations
GB/T 34132 General technical requirements for intelligent terminal devices in smart substations
GB/T 36273 Technical specification for digital interface of relay protection and safety automation devices in intelligent substations
GB/T 40435 Technical Specification for Substation Data Communication Gateways
GB/T 45906.3 Substation secondary system Part 3.Communication message specification