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GB/T 45906.1-2025: Substation secondary system - Part 1: General requirement
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 45906.1-2025 | English | 279 |
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Substation secondary system - Part 1: General requirement
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GB/T 45906.1-2025
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Basic data
| Standard ID | GB/T 45906.1-2025 (GB/T45906.1-2025) |
| Description (Translated English) | Substation secondary system - Part 1: General requirement |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | F20 |
| Classification of International Standard | 29.240.10 |
| Word Count Estimation | 14,11 |
| 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 45906.1-2025: Substation secondary system - Part 1: General requirement
---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/GBT45906.1-2025
ICS 29.240.10
CCSF20
National Standard of the People's Republic of China
Substation secondary system
Part 1.General requirements
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 General Requirements 2
6 System Architecture 2
7 Technical Requirements 3
7.1 Reliability 3
7.2 Functional Integration 3
7.3 Information Interaction 3
7.4 Network Security 4
Appendix A (Informative) Typical Architecture of Substation Secondary System 5
References 6
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 1 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. State Grid Corporation of China, China Electric Power Research Institute Co., Ltd., China Southern Power Grid Co., Ltd.,
Inner Mongolia Electric Power (Group) Co., Ltd., State Grid Economic and Technological Research Institute Co., Ltd., Nanjing Nanrui Relay Protection Electric Co., Ltd., State Grid Zhejiang
Jiangsu Electric Power Co., Ltd., Xuji Electric Co., Ltd., Beijing Sifang Relay Protection Engineering Technology Co., Ltd., State Grid Fujian Electric Power Co., Ltd.
Company, State Grid Nanrui Technology Co., Ltd., Anhui Nanrui Jiyuan Power Grid Technology Co., Ltd., Nanrui Group Co., Ltd., State Grid Shandong Electric Power
Company, State Grid Qinghai Electric Power Company, State Grid Jiangsu Electric Power Company, North China Electric Power University, Changyuan Shenzhen Ruijibao Automation Co., Ltd.,
GUODIAN NANJING AUTOMATION CO., LTD.
The main drafters of this document are. Li Mingjie, Zhang Zhigang, Shu Zhihuai, Chen Guoping, Dong Yu, Zhou Zexin, Liu Yu, Chang Naichao, Sun Yang, Wang Guochun,
Lü Pengfei, Yang Guosheng, Li Zhongqing, Dou Renhui, Dou Xuewei, Liu Qiankuan, Chen Zhaohui, Han Dong, Yan Peili, Li Li, Du Qiwei, Tang Zhenyu, Hu Shaoqian,
Liu Dongchao, Fang Wei, Wang Shenqiang, Liu Huihai, Ni Chuankun, Zhou Jieying, Yang Bin, Li Jinsong, Wu Congying, Meng Jiangwen, Bai Jingfen, Lin Pi, Zhou Bin,
Peng Shikuan, Yang Kejun, Zhou Hualiang, Qin Hongxia, You Daning, Li Hongzhi, Ge Yaming, Tang Yi, Huang Xiang, Xue Ancheng, Zheng Tao, Yu Weiguo, Li Yuping,
Zhang Jiaqi and Liu Changqing.
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 1.General requirements
1 Scope
This document specifies the overall requirements, system architecture, reliability requirements, function integration requirements, information exchange requirements and network requirements of the substation secondary system.
Network security requirements.
This document applies to the design, development, testing, construction, operation, maintenance and overhaul of substation secondary systems.
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 40435 Technical Specification for Substation Data Communication Gateways
GB/T 45906.5 Substation secondary systems Part 5.Protection, control and related equipment
GB/T 45906.6 Substation secondary systems Part 6.Station monitoring system
GB/T 45906.7 Substation secondary systems Part 7.Centralized monitoring system
GB/T 45906.9 Substation secondary system Part 9.Construction specifications
GB/T 45906.10 Substation secondary systems Part 10.Testing and inspection
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
It is composed of equipment and software with functions of collection, measurement, protection, control, communication, monitoring, inspection, metering, etc., which can realize the control of power grid and substation.
The main and auxiliary equipment operation monitoring, operation control, abnormal alarm, fault isolation, stability control, safety protection and operation and maintenance management of the station are also provided for the remote main
The station provides a system that provides monitoring, operation, maintenance and other support services.
3.2
Equipment that controls, regulates, protects, monitors and measures power grids and primary equipment, and supports the operation, operation and management of these equipment.
Management related equipment.
Note. Such as data collection and execution equipment, relay protection and safety automatic devices, monitoring host, auxiliary monitoring equipment, metering devices, etc.
3.3
The substation integrated monitoring system with monitoring and patrol functions realizes the functions of relay protection devices, safety automatic devices, synchronous phase measurement
It can collect, monitor, control, analyze and manage the information of equipment such as measuring devices, and provide support services for remote master stations such as dispatching master stations.
3.4
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