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NB/T 11146-2023: Technical specification for online comparison of power quality monitoring device
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Technical specification for online comparison of power quality monitoring device
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NB/T 11146-2023
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Basic data | Standard ID | NB/T 11146-2023 (NB/T11146-2023) | | Description (Translated English) | Technical specification for online comparison of power quality monitoring device | | Sector / Industry | Energy Industry Standard (Recommended) | | Classification of Chinese Standard | K04 | | Classification of International Standard | 17.220.20 | | Word Count Estimation | 19,165 | | Date of Issue | 2023-02-06 | | Date of Implementation | 2023-08-06 | | Issuing agency(ies) | National Energy Administration | NB/T 11146-2023: Technical specification for online comparison of power quality monitoring 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 17:220:20
CCSK04
People's Republic of China Energy Industry Standards
Technical specifications for online comparison of power quality monitoring devices
Released on 2023-02-06
2023-08-06 Implementation
Released by the National Energy Administration
table of contents
Preface I
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Comparison device technical requirements 2
4:1 General requirements 2
4:2 Measurement function module 3
4:3 Network time synchronization function module 3
4:4 Data acquisition function module 3
4:5 Data analysis function module 3
5 Requirements and procedures for online comparison testing 4
5:1 Detection environment 4
5:2 Detection scheme 4
5:3 Test items 5
5:4 Detection of voltage measurement error 5
5:5 Detection of frequency measurement error 5
5:6 Detection of three-phase unbalance measurement error 6
5:7 Detection of harmonic/interharmonic measurement errors6
5:8 Detection of flicker measurement errors 7
5:9 Detection process 8
6 Detection data processing and evaluation 9
6:1 Basic requirements 9
6:2 Data processing 9
6:3 Results Evaluation 9
6:4 Processing method 9
Appendix A (informative) Calculation method of fractal dimension 10
Reference 15
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:
Please note that some contents of this document may refer to patents: The issuing agency of this document assumes no responsibility for identifying patents:
This document is proposed and managed by the National Standardization Technical Committee on Voltage, Current Level and Frequency (SAC/TC1):
This document was drafted by: Guangxi Power Grid Co:, Ltd: Electric Power Research Institute, State Grid Hebei Electric Power Co:, Ltd: Electric Power Science Research
Institute, China Machinery Productivity Promotion Center Co:, Ltd:, North China Electric Power University, State Grid Zhejiang Electric Power Co:, Ltd: Electric Power Research Institute, Guizhou Power Grid
Electric Power Research Institute of Limited Liability Company, Electric Power Research Institute of State Grid Fujian Electric Power Co:, Ltd:, Electric Power Division of State Grid Shanxi Electric Power Company
Research Institute, Zhongshan Qiaoyuan Electric Power Technology Co:, Ltd:, Guangzhou Xuantong Electric Technology Co:, Ltd:, Yunnan Power Grid Co:, Ltd: Zhaotong Power Supply
Bureau, NARI Group Co:, Ltd:, Guangxi Guineng Technology Development Co:, Ltd:, and China Southern Power Grid Peak and Frequency Regulation Power Generation Co:, Ltd:
The main drafters of this document: Guo Min, Hua Huichun, Zhang Ping, Zhou Wen, Li Pei, Xin Mingyong, Lin Fang, Chen Weidong, Chang Xiao, Zhou Cong, Lin Junhao,
Liu Jing, Gao Le, Jiang Yi, Zhou Ke, Zhu Jianyang, Jin Qingren, Wang Jinhao, Meng Zhaojun, Liang Jifeng, Yang Julan, Ruan Shiya, Long Qiufeng, Yao Zhiyang,
Wu Dewu, Li Dehua:
Technical specifications for online comparison of power quality monitoring devices
1 Scope
This document specifies the technical requirements for comparison devices, online comparison testing requirements and procedures, and testing data for online comparison of power quality monitoring devices:
processing and evaluation:
This document is applicable to the online detection of the accuracy of power quality monitoring devices fixedly installed on site:
2 Normative references
The contents of the following documents constitute the essential provisions of this document through normative references in the text: Among them, dated references
For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to
this document:
GB/T 8170-2008 Numerical rounding off rules and expression and determination of limit values
GB/T 17626:30-2012 Electromagnetic Compatibility Test and Measurement Technology Power Quality Measurement Method
GB/T 19862-2016 General requirements for power quality monitoring equipment
GB/T 32507-2016 Power Quality Terminology
DL/T 860:73-2013 Electric power automation communication network and system Part 7-3: Basic communication structure public data class
DL/T 860:74-2014 Electric Power Automation Communication Network and System Part 7-4: Basic Communication Structure Compatible with Logical Node Classes and
data class
DL/T 1100:1-2018 Time Synchronization System for Power Systems Part 1: Technical Specifications
DL/T 1100:4-2018 Time Synchronization System for Power Systems Part 4: Technical Specifications for Testers
DL/T 1862-2018 Power Quality Monitoring Terminal Detection Technical Specifications
JB/T 5472-2022 Instrument Current Transformer
3 Terms and Definitions
GB/T 17626:30-2012, GB/T 32507-2016, DL/T 1100:1-2018 and the following terms and definitions apply
in this document:
3:1
It is a special device for measuring power quality indicators by introducing voltage and current signals:
Note: Hereinafter referred to as "monitoring device", the monitoring device is divided into two types: analog and digital:
[Source: GB/T 32507-2016, 3:2, modified]
3:2
A portable power quality measurement device used for on-site comparative detection of the measurement accuracy of the monitored monitoring device, the measurement accuracy
The accuracy is higher than that of the monitoring device, providing high-precision time synchronization service, and having the function of statistical analysis of the measurement data of the monitored monitoring device:
Note: hereinafter referred to as "comparison device":
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