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GB/T 43343-2023: High-voltage insulation resistance meters
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High-voltage insulation resistance meters
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GB/T 43343-2023
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Basic data | Standard ID | GB/T 43343-2023 (GB/T43343-2023) | | Description (Translated English) | High-voltage insulation resistance meters | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | N21 | | Classification of International Standard | 19.080 | | Word Count Estimation | 26,273 | | Date of Issue | 2023-11-27 | | Date of Implementation | 2024-06-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 43343-2023: High-voltage insulation resistance meters---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 19:080
CCSN21
National Standards of People's Republic of China
High voltage insulation resistance meter
Published on 2023-11-27
2024-06-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration Committee
Table of contents
Preface III
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Functions and Classification 2
5 Technical requirements 4
5:1 Working conditions 4
5:2 Appearance 4
5:3 Electrical requirements 5
5:4 Functional requirements 5
5:5 Metrology performance requirements 5
5:6 Working voltage establishment time 8
5:7 Residual charge discharge time 8
5:8 Short circuit current 8
5:9 Environmental adaptability, packaging and transportation 8
5:10 Electromagnetic compatibility 8
5:11 Enclosure protection level 8
6 Test methods 8
6:1 Test conditions 8
6:2 Test equipment 8
6:3 Appearance inspection 9
6:4 Electrical test 9
6:5 Functional inspection and testing 10
6:6 Metrology performance test 10
6:7 Working voltage establishment time test 12
6:8 Residual charge discharge time test 13
6:9 Short circuit current test 13
6:10 Environmental adaptability and packaging and transportation test 14
6:11 Electromagnetic compatibility test 14
6:12 Enclosure protection level test 15
7 Inspection Rules 15
7:1 General requirements15
7:2 Type test 16
7:3 Factory inspection 16
7:4 Routine inspection16
8 Marking, packaging, transportation and storage17
8:1 Flag 17
8:2 Packaging17
8:3 Transport17
8:4 Storage17
Appendix A (normative) Special technical requirements and test methods for insulation resistance meters of water-cooled generators 18
Reference 21
Figure 1 Basic principle block diagram of mechanical insulation meter 3
Figure 2 Basic principle block diagram of electronic insulation meter 4
Figure 3 The pointer displays the range section 6 of the insulation meter:
Figure 4 Absorption ratio and polarization index test wiring diagram 10
Figure 5 Indication error test wiring diagram 11
Figure 6 Additional error verification wiring diagram 12 caused by surface leakage
Figure 7 Insulation meter terminal voltage test wiring diagram 12
Figure 8 Working voltage establishment time test wiring diagram 13
Figure 9 Insulation meter short circuit current test wiring diagram 13
Figure A:1 Principle block diagram of the special insulation table for water-cooled generators 18
Figure A:2 Drop voltage and maximum output current test wiring diagram 19
Figure A:3 Water circuit parameter introduction error test wiring diagram 20
Table 1 The relationship between the accuracy level and the maximum allowable error of the pointer display insulation meter 6
Table 2 The relationship between the maximum allowable error correlation coefficient of the digital display insulation meter and the accuracy level 6
Table 3 Standard devices and auxiliary equipment 9
Table 4 Equipment power terminal disturbance voltage limits 14
Table 5 Equipment radiation disturbance limits (measuring distance 10m) 14
Table 6 Electromagnetic immunity test levels and performance criteria15
Table 7 Test items 15
Foreword
This document complies with the provisions of GB/T 1:1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents"
Drafting:
Please note that some content in this document may be subject to patents: The publisher of this document assumes no responsibility for identifying patents:
This document is proposed by the China Electrical Equipment Industry Association:
This document is under the jurisdiction of the National High Voltage Test Technology and Insulation Coordination Standardization Technical Committee (SAC/TC163):
This document was drafted by: China Electric Power Research Institute Co:, Ltd:, State Grid Corporation of China, National High Voltage Metering Station, Wuhan Kang
Da Electric Co:, Ltd:, State Grid Hubei Electric Power Co:, Ltd: Electric Power Research Institute, China Yangtze Electric Power Co:, Ltd: Three Gorges Hydropower
Factory, Shandong University of Science and Technology, China Institute of Metrology, State Grid Heilongjiang Electric Power Co:, Ltd: Electric Power Research Institute, Shenzhen Electrical Science Research Institute
Research Institute, Suzhou Huadian Electric Co:, Ltd:, Xi'an High Voltage Electrical Apparatus Research Institute Co:, Ltd:, Electric Power Department of State Grid Xinjiang Electric Power Co:, Ltd:
Research Institute of Electric Power, State Grid Chongqing Electric Power Company Electric Power Research Institute, State Grid Zhejiang Electric Power Co:, Ltd: Electric Power Research Institute, Shenyang Transformer
Electric Power Research Institute Co:, Ltd:, Inner Mongolia Electric Power Research Institute, State Grid Hebei Electric Power Co:, Ltd: Electric Power Research Institute, State Grid Shanghai Municipal Power
Electric Power Research Institute of Electric Power Company, Electric Power Research Institute of State Grid Anhui Electric Power Co:, Ltd:, and North China Electric Power Research Institute Co:, Ltd:
Company, Beijing Huatian Mechanical and Electrical Research Institute Co:, Ltd:, Anhui Dawei Electric Technology Co:, Ltd:, Jiangsu Provincial Institute of Metrology (Jiangsu Provincial Energy Measurement Institute)
Data Center), State Grid Liaoning Electric Power Co:, Ltd: Electric Power Research Institute, State Grid Tianjin Electric Power Company, Wuhan Pandian Technology Co:, Ltd:
Company, Standards and Metrology Institute of China Academy of Railway Sciences Group Co:, Ltd:, Electric Power Research Institute of State Grid Henan Electric Power Company, State Grid
Jiangsu Electric Power Co:, Ltd: Changzhou Power Supply Company, State Grid Ningxia Electric Power Co:, Ltd: Electric Power Research Institute, State Grid Sichuan Electric Power Company
Scientific Research Institute, China Southern Power Grid Co:, Ltd: Ultra-High Voltage Transmission Company, Tianjin Institute of Metrology Supervision and Inspection, Guangdong Power Grid
Co:, Ltd: Electric Power Research Institute, State Grid Shanxi Electric Power Company Electric Power Research Institute, Inner Mongolia Jinglong Power Generation Co:, Ltd:,
Shanghai Jiao Tong University, Xi'an Jiao Tong University:
The main drafters of this document: Zhao Peng, Lei Min, Guo Xianshan, Zhou Feng, Yue Changxi, Hu Xiaohui, Zhu Kai, Cheng Cheng, Wang Quan, Yang Feng, Cao Na, Wang Hao,
Wang Lei, Xiao Minying, Guo Yu, Bao Qinghua, Su Chunqiang, Diao Yinglong, Liu Weixin, Long Yingkai, Gong Jinlong, Lu Xiangpeng, Che Chuanqiang, Pan Jin, Yuan Zhiwen,
Liu Jing, Wang Ting, Li Junke, Zhang Lichao, Zhang Luyan, Jin Xin, Man Yuyan, Zhong Lei, Wang Chunjie, Sun Jun, Lei Dong, Wang Tian, Liu Xiaokang, Wu Xutao,
Xie Shijun, Zhang Changhong, Zhao Xinming, Zhou Dan, Yu Hua, Wei Guanghong, Wang Hui, Liu Xuandong:
High voltage insulation resistance meter
1 Scope
This document specifies the functions and classifications, technical requirements, test methods, and inspection regulations of high-voltage insulation resistance meters (hereinafter referred to as "insulation meters"):
The standard, marking, packaging, transportation and storage requirements, describes the test method:
This document applies to the design, manufacture and type testing of insulation meters with rated voltages above 1500V:
2 Normative reference documents
The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, the dated quotations
For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to
this document:
GB/T 191 Packaging, storage and transportation pictorial mark
GB/T 4208-2017 Shell protection level (IP code)
GB 4793:1-2007 Safety requirements for electrical equipment for measurement, control and laboratory use Part 1: General requirements
GB/T 6587-2012 General specifications for electronic measuring instruments
GB/T 9969 General Principles of Instructions for Use of Industrial Products
GB/T 17626:2-2018 Electromagnetic compatibility testing and measurement technology electrostatic discharge immunity test
GB/T 17626:3-2016 Electromagnetic compatibility testing and measurement technology Radio frequency electromagnetic field radiation immunity test
GB/T 17626:4-2018 Electromagnetic compatibility test and measurement technology Electrical fast transient burst immunity test
GB/T 17626:5-2019 Electromagnetic compatibility testing and measurement technology surge (impact) immunity test
GB/T 17626:6-2017 Electromagnetic compatibility test and measurement technology Conducted disturbance immunity induced by radio frequency fields
GB/T 17626:11 Electromagnetic compatibility testing and measurement technology Part 11: Equipment for each phase input current less than or equal to 16A
Voltage sag, short interruption and voltage change immunity test of equipment
GB/T 18268:1-2010 Electromagnetic compatibility requirements for electrical equipment for measurement, control and laboratory use Part 1: General requirements
JJG622-1997 Insulation resistance meter (megger)
3 Terms and definitions
The following terms and definitions apply to this document:
3:1
insulation resistanceinsulationresistance
The ratio of the DC voltage applied between two electrodes of an insulating structure to the current flowing through that pair of electrodes:
3:2
Measuring terminal testterminal
The terminals used to connect the object under test in the insulation table are divided into line terminals L and ground terminals according to their connection parts with the object under test:
E and shield terminal G:
[Source: JJG1005-2019, 3:2, modified]
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