GB/T 26862-2025Test specifications of synchrophasor measurement device for power systems (English PDF)
电力系统同步相量测量装置检测规范
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
May 30, 2025
Implementation date
December 1, 2025
Scope
GB/T 26862-2025 is the English-translated version of 电力系统同步相量测量装置检测规范.
GB/T 26862-2025 is the Chinese national standard covering testing the PMU that timestamps voltage and current phasors across a grid — the static and dynamic accuracy against a standard source or a calibrator, the time synchronisation and the leap second handling, without which phasors from two ends of a line cannot be compared, the low frequency and sub-synchronous oscillation monitoring, the insulation, electromagnetic compatibility and mechanical tests, and the same programme applied to the phasor data concentrator. It replaces GB/T 26862-2011, adding the phasor data concentrator and the digital input unit that takes sampled values off the process bus. Under the China Electricity Council. In force from 1 December 2025. Issued on 30 May 2025, it has been in force since 1 December 2025, replacing GB/T 26862-2011.
Document preview — GB/T 26862-2025
National Standard of the People's Republic of China
- ICS
- 17.220.20
- Classification
- N 22
- Replacing
- GB/T 26862-2011
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- PrefaceIII
- IntroductionIV
- 1 Scope1
- 2 Normative references1
- 3 Terms and Definitions2
- 4 Test conditions3
- 4.1 Test atmospheric conditions3
- 4.2 Standard test conditions3
- 4.3 Detection system environment architecture3
- 4.4 Test standard source4
- 4.5 Reference conditions for influencing quantities4
- 4.6 Error calculation conditions4
- 5 Synchronized Phasor Measurement Unit5
- 5.1 Structural and Appearance Inspection5
- 5.2 Self-test function test5
- 5.3 Condition monitoring function test6
- 5.4 Data storage function test6
- 5.5 Low frequency oscillation alarm function detection6
- 5.6 times/super synchronous oscillation monitoring function detection6
- 5.7 Continuous recording function test6
- 5.8 Sampled data event identification function detection6
- 5.9 Power consumption detection7
- 5.10 Dynamic data recording function test7
- 5.11 Data security testing7
- 5.12 Data output mode detection7
- 5.13 Trigger function detection8
- 5.14 Abnormal detection of sampled value (SV) of digital input synchronous phasor measurement unit8
- 5.15 Static performance test8
- 5.16 Dynamic performance test10
- 5.17 Time synchronization function test13
- 5.18 Power supply impact detection14
- 5.19 Environmental conditions affecting detection14
- 5.20 Insulation performance test14
- 5.21 Thermal stability test16
- 5.22 Electromagnetic compatibility testing16
- 5.23 Mechanical properties test17
- 5.24 Communication Detection17
- 5.25 Continuous power-on stability test19
- 6 Phase data concentrator19
- 6.1 Structural and Appearance Inspection19
- 6.2 Self-test function test19
- 6.3 Condition monitoring function test20
- 6.4 Data storage function test20
- 6.5 Redundant Network Function Detection20
- 6.6 Power consumption detection20
- 6.7 Dynamic data recording function detection20
- 6.8 Data security testing20
- 6.9 Time synchronization function detection20
- 6.10 Power supply impact detection20
- 6.11 Environmental conditions affecting detection21
- 6.12 Insulation performance test21
- 6.13 Electromagnetic compatibility testing21
- 6.14 Mechanical properties testing22
- 6.15 Communication Detection22
- 6.16 Continuous power-on stability test23
- 7 Inspection Rules23
- 7.1 Inspection categories23
- 7.2 Type test23
- 7.3 Factory Inspection23
- 7.4 Field Test23
- Appendix A (Normative) PMU Accuracy Test Method25
- A.1 Method 1.Standard source method25
- A.2 Method 2.Calibrator method25
- Appendix B (Informative) Digital Simulation Test26
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 replaces GB/T 26862-2011 "Testing Specification for Synchronous Phase Measurement Devices in Power Systems" and is consistent with GB/T 26862-2011.
In addition to structural adjustments and editorial changes, the main technical changes are as follows.
a) Added the terms and definitions of synchronized phasor, synchronized phasor measurement device, synchronized phasor measurement unit and phasor data concentrator (see Chapter 3);
b) Added content on test conditions (see Chapter 4);
c) Added basic function test items (see 5.2, 5.3, 5.4, 5.6, 5.7, 5.8);
d) Added the detection content of digital input synchronous phasor measurement unit (see 5.9, 5.14);
e) The inspection items of dynamic and static tests have been changed and the contents have been refined (see 5.15, 5.16, 3.3 of the 2011 edition);
f) Added time synchronization detection content. time synchronization interface configuration check, time synchronization accuracy test, leap second processing function test, Time synchronization monitoring function check (see 5.17, 6.9.2);
g) The contents of the electromagnetic compatibility test items have been changed (see 5.22, 3.15 of the 2011 edition);
h) Added DL/T 860 (all parts) transmission protocol detection (see 5.24.4);
i) Added phasor data concentrator detection content (see Chapter 6);
j) Changed the “comparison method” in the test method to “calibrator method” (see Appendix A, Appendix A of the 2011 edition).
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 under the jurisdiction of the National Technical Committee for Standardization of Power System Management and Information Exchange (SAC/TC82).
This document was drafted by: China Electric Power Research Institute Co., Ltd., China Electric Power Engineering Consulting Group North China Electric Power Design Institute Co., Ltd.
China Southern Power Grid Co., Ltd., State Grid Electric Power Research Institute Co., Ltd., Beijing Sifang Relay Protection Co., Ltd.
Automation Co., Ltd., China Electric Power Purui Electric Power Engineering Co., Ltd., North China Electric Power University, State Grid Jiangxi Electric Power Co., Ltd. Power Supply Services Management Center, Beijing Bodian Xinli Electric Co., Ltd., Guodian Nanjing Automation Co., Ltd., Changyuan Shenrui Jibao Automation Co., Ltd.
Company, Nanjing NARI Relay Protection Electric Co., Ltd., NARI Technology Co., Ltd., China Southern Power Grid Research Institute Co., Ltd., State Grid Jiangsu Electric Power Co., Ltd., Dongfang Electronics Co., Ltd., State Grid Zhejiang Electric Power Co., Ltd., State Grid Shanghai Electric Power Company, State Grid Henan Electric Power Co., Ltd. Electric Power Research Institute, Xuji Electric Co., Ltd. Technology Center, State Grid Jiangsu Electric Power Co., Ltd.
Scientific Research Institute, North China Electric Power Research Institute Co., Ltd., State Grid Jibei Electric Power Co., Ltd., Jiangsu Jinzhi Technology Co., Ltd., Aerospace Yinshan Electric Co., Ltd., Jiangxi Bada Electronics Co., Ltd., and State Grid Shanxi Electric Power Company Electric Power Research Institute.
The main drafters of this document are: Li Jinsong, Zhang Daonong, Wang Yongfu, Li Jin, Zhao Mingyang, Yu Yuehai, Shi Boyan, Xu Yong, Bi Tianshu, Chang Naichao, Pei Maolin, Zhu Xiaopeng, Wen Fuguang, Li Qiang, Wang Liang, Hou Mingguo, Xu Quan, Zhang Qibing, Wang Zhihua, Du Qiwei, Fang Chen, Zhang Jiangnan, Yu Gaowang, Zheng Mingzhong, Bian Baoyin, Liu Hao, Wang Changrui, Han Kai, Shen Jun, Yan Yongsheng, Li Lihua, Zhang Jinhu, Li Wenzhuo, Shen Yan, Tang Zhen.
The previous versions of this document and the documents it replaces are as follows.
— First released in 2011;
— This is the first revision.
Introduction
This document aims to provide the detection environment, detection items, detection and evaluation methods for synchronized phasor measurement devices in power automation systems.
At present, the current domestic standard GB/T 26865.2 "Power System Real-time Dynamic Monitoring System Part 2: Data Transmission Protocol" and DL/T 280 "General Technical Requirements for Synchronous Phasor Measurement Devices in Power Systems" is closely related to this document.
The communication protocol of the measuring device is specified in DL/T 280, and the technical requirements of the synchronous phasor measuring device are specified in DL/T 280.
The three standards are used together to standardize the detection and evaluation methods of synchronous phasor measurement devices in power systems.
It provides a basis and reference for the research and development, production, testing and application of measurement devices.
1 Scope
This document specifies the test conditions, test items, test methods, inspection rules, test result judgment of the synchronous phasor measurement device of the power system.
Determination and detection cycle.
This document applies to the development, production and testing (including type testing, factory inspection and field testing) of synchronized phasor measurement devices.
The development and testing of phasor measurement device products can be carried out as a reference.
2 Normative references
GB/T 2423.1
GB/T 2423.2
GB/T 2900.1
GB/T 2900.17
GB/T 13729-2019
GB/T 14598.24
GB/T 15153.2-2000
GB/T 17626.2-2018
GB/T 17626.3-2016
GB/T 17626.4-2018
GB/T 17626.5-2019
GB/T 17626.6-2017
GB/T 17626.8-2006
GB/T 17626.9-2011
GB/T 17626.10-2017
GB/T 17626.11-2008
GB/T 17626.18-2016
GB/T 17626.29-2006
GB/T 19520.12-2009
GB/T 26865.2
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 31 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 2900.1Electrotechnical terminology - Fundamental terms
- GB/T 13729-2019Remote terminal unit equipment
- GB/T 17626.9-2011Electromagnetic compatibility - Testing and measurement techniques - Part 9: Impulse magnetic field immunity test
- GB/T 17626.11-2008Electromagnetic compatibility - Testing and measurement techniques - Part 11: Voltage dips, short interruptions and voltage variations immunity tests for equipment with input current up to 16 A per phase
- GB/T 26865.2Real-time dynamic monitoring system of power system—Part 2: Protocols for data transferring
GB/T 2423.1 · GB/T 2423.2 · GB/T 2900.17 · GB/T 14598.24 · GB/T 15153.2-2000 · GB/T 17626.2-2018 · GB/T 17626.3-2016 · GB/T 17626.4-2018 · GB/T 17626.5-2019 · GB/T 17626.6-2017 · GB/T 17626.8-2006 · GB/T 17626.10-2017 · GB/T 17626.18-2016 · GB/T 17626.29-2006 · GB/T 19520.12-2009
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- GB/T 46372-2025Guide for commissioning flywheel energy storage power stations
- GB/T 44360-2024Wind energy generation systems—Technical specification for data acquisition of smart wind farm
- GB/T 42737-2023Code for commissioning of electrochemical energy storage station
- GB/T 31994-2015Technical specification for the smart remote communication and control gateway
Editions of GB/T 26862
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 26862-2025 | Test specifications of synchrophasor measurement device for power systems | current edition | Current |
| GB/T 26862-2011 | Test specifications for synchrophasor measurement unit for power systems | previous edition | In force |
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Related Standards
GB/T 13729-2019 — Remote terminal unit equipment
GB/T 2423.101-2025 — Environmental testing - Part 2: Test methods - Test: Inclinations and swings
GB/T 2423.102-2008 — Environmental testing for electric and electronic products - Part 2: Test methods - Test: combined temperature(cold and heat)/low air pressure/vibration (sinusoidal)
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