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GB/T 45906.3-2025: Substation secondary system - Part 3: Communication message specification
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| GB/T 45906.3-2025 | English | 1479 |
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Substation secondary system - Part 3: Communication message specification
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GB/T 45906.3-2025
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Basic data
| Standard ID | GB/T 45906.3-2025 (GB/T45906.3-2025) |
| Description (Translated English) | Substation secondary system - Part 3: Communication message specification |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | F20 |
| Classification of International Standard | 29.240.10 |
| Word Count Estimation | 74,767 |
| 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 45906.3-2025: Substation secondary system - Part 3: Communication message specification
---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/GBT45906.3-2025
ICS 29.240.10
CCSF20
National Standard of the People's Republic of China
Substation secondary system
Part 3.Communication message specifications
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 1
4 Abbreviations 2
5 Communication Protocol Set 2
6 data frame 3
6.1 Application Protocol Data Unit 3
6.2 Application Service Data Unit 6
6.3 Empty Data Frame 6
6.4 Data Frame Negotiation 7
6.5 Frame transmission mode 7
6.6 Service Port 7
6.7 TCP Connection Control 7
6.8 Error handling 7
6.9 Timeout and Communication Status Detection 7
6.10 Data Encoding 8
6.11 Data Frame Based on ISO /IEC /IEEE8802-3 8
7 Data Objects 9
7.1 Basic Data Types 9
7.2 Extended Data Types 10
7.3 Public ACSI Type 11
7.4 Functional Constraints (FC) 14
7.5 Control Objects 14
7.6 Control Block 16
7.7 Data Values and Definitions 17
8 Communication Services18
8.1 Interactive Mode 18
8.2 Related Services 19
8.3 Server, Logical Device, and Logical Node Services 20
8.4 Data Services 26
8.5 Dataset Services 29
8.6 Fixed value services 32
8.7 Reporting Services 34
8.8 Log Services 39
8.9 General Substation Event Services 42
8.10 Multicast Sampled Value Service 45
8.11 Control Services 46
8.12 File Services 53
8.13 Remote Procedure Call Services 56
8.14 Testing Service (Test) 60
Appendix A (Normative) Communication Gateway Application 61
A.1 Working Mode 61
A.2 Communication Gateway Model 61
A.3 Communication Gateway Implementation 62
Appendix B (Informative) Communication Transmission Security 63
B.1 Overview 63
B.2 Transport Layer Security 63
B.3 Application Layer Security 63
Appendix C (Informative) Application in Auxiliary Control and Sensor Internet of Things 65
C.1 Working Mode 65
C.2 Device Model 65
C.3 Communication Data Classification 65
C.4 Communication Services 66
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 3 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 was prepared by the National Grid Operation and Control Standardization Technical Committee (SAC/TC446), the National Electric Power System Management and Information Exchange
The Standardization Technical Committee (SAC/TC82) will be transferred to this department for coordination.
This document was drafted by. China Electric Power Research Institute Co., Ltd., State Grid Corporation of China, State Grid Corporation of China East China Branch,
State Grid Beijing Electric Power Company, State Grid Tianjin Electric Power Company, State Grid Shandong Electric Power Company, State Grid Jiangsu Electric Power Company, State Grid Zhejiang Electric Power Company
Provincial Electric Power Co., Ltd., State Grid Hubei Electric Power Co., Ltd., State Grid Jilin Electric Power Co., Ltd., China Southern Power Grid Co., Ltd.,
Mongolia Electric Power (Group) Co., Ltd., China Three Gorges Corporation, Nanjing NARI Relay Protection Electric Co., Ltd., State Grid NARI
Technology Co., Ltd., State Grid Electric Power Research Institute Co., Ltd., Beijing Sifang Relay Protection Automation Co., Ltd., and Dongfang Electronics Co., Ltd.
Co., Ltd., Changyuan Shenzhen Ruijibao Automation Co., Ltd., and Guodian Nanjing Automation Co., Ltd.
The main drafters of this document are. Dou Renhui, Chang Naichao, Wang Yongfu, Li Dan, Li Wenzhuo, Sheng Fu, Wang Lihua, Dai Xiaoxiang, Luo Huayu, Yu Jing,
Liu Qianling, Ge Yachuan, Sun Fanen, Shi Zebing, Li Jin, Han Dong, Xiao Yongli, Sun Jun, Li Jinsong, Zhang Jinhu, Qu Gang, Guo Lei, Chen Jian, Zhang Qibing,
Du Qiwei, Zheng Xiang, Hong Yue, Yang Song, Ren Hui, Wu Yanping, Yao Zhiqiang, Zhang Haiyan, Peng Zhiqiang, Ruan Lixiang, Liu Xuefei, Liang Zhengtang, Wang Zhihua, Sun Dan,
Wang Zhenzhen, Zhao Na, Xu Xin, Yang Qing, Ren Hao, and Wang Shui.
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 consists 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 3.Communication message specifications
1 Scope
This document specifies the communication protocol set, data frames, data objects and communication services for data interaction in substation secondary systems.
This document applies to data and file transmission between devices within the substation secondary system, and between the substation secondary system and the master station.
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 16262.1 Information technology Abstract Syntax Notation (ASN.1) Part 1.Basic notation specification
GB/T 16262.2 Information technology Abstract Syntax Notation (ASN.1) Part 2.Information object specification
GB/T 16263.2 Information technology ASN.1 encoding rules Part 2.Specification of the Reduced Encoding Rules (PER)
GB/T 33602 General Service Agreement for Power Systems
GB/T 42151.6 Power automation communication networks and systems Part 6.Power automation systems related to intelligent electronic devices
Communication Configuration Description Language
GB/T 42151.72 Electric power automation communication networks and systems Part 7-2.Basic information and communication structure Abstract communication services
Interface (ACSI)
DL/T 860 (all parts) Power automation communication networks and systems
DL/T 860.73 Electric power automation communication networks and systems Part 7-3.Basic communication structure - Common data class
DL/T 860.74 Electric power automation communication networks and systems Part 7-4.Basic communication structure - Compatible logical node classes and data
According to the category
ISO /IEC /IEEE8802-3 Information technology – Telecommunications and switching between systems – Requirements for local and metropolitan area networks – Part 3.
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
Service Requester servicerequester
The entity that issues the request service primitive.
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