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GBZ42004-2022 English PDF

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GBZ42004-2022: Consideration of reference impedances and public supply network impedances for use in determining the disturbance characteristics of electrical equipment having a rated current ≤75 A per phase
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GB/Z 42004-2022English454 Add to Cart 4 days [Need to translate] Consideration of reference impedances and public supply network impedances for use in determining the disturbance characteristics of electrical equipment having a rated current ≤75 A per phase Valid GB/Z 42004-2022

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Basic data

Standard ID GB/Z 42004-2022 (GB/Z42004-2022)
Description (Translated English) Consideration of reference impedances and public supply network impedances for use in determining the disturbance characteristics of electrical equipment having a rated current ��75 A per phase
Sector / Industry National Standard
Classification of Chinese Standard L06
Classification of International Standard 33.100.01
Word Count Estimation 26,283
Date of Issue 2022-10-14
Date of Implementation 2023-05-01
Issuing agency(ies) State Administration for Market Regulation, China National Standardization Administration

GBZ42004-2022: Consideration of reference impedances and public supply network impedances for use in determining the disturbance characteristics of electrical equipment having a rated current ≤75 A per phase



---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.
GB /Z 42004-2022 Consideration of reference impedances and public supply network impedances for use in determining the disturbance characteristics of electrical equipment having a rated current ≤75 A per phase ICS 33.100.01 CCSL06 National Standardization Guiding Technical Document of the People's Republic of China Determine the electrical equipment (rated current per phase Less than or equal to 75A) for disturbance characteristics Reference Impedance and Utility Network Impedance Considerations (IEC /T R60725.2012, IDT) Published on 2022-10-12 2023-05-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration directory Preface I 1 Scope 1 2 Normative references 1 3 Low-voltage power supply system 2 3.1 Three-phase power supply system 2 3.2 Single-phase two-wire power supply system 2 3.3 Single-phase three-wire power supply system 2 4 Power supply impedance 2 4.1 Typical residential site 2 4.2 Large Residential, Commercial and Light Industrial Sites5 4.2.1 Overview 5 4.2.2 Supply impedance related to the connection of three-phase equipment5 4.2.3 Supply impedance related to single-phase equipment connection 6 5 Reference impedance 7 5.1 General 7 5.2 The rated current is less than or equal to the reference impedance of the 16A device7 5.2.1 General 7 5.2.2 50Hz and 60Hz low voltage power supply system 8 5.3 Reference impedance of 50Hz and 60Hz equipment with rated current greater than 16A and less than or equal to 75A per phase 9 6 Impedance at frequencies higher than supply frequency 10 Appendix A (informative) Method for determining the maximum modulus value of the impedance of the public low-voltage power grid for a three-phase power supply system with each phase greater than 100A at 50Hz Appendix B (informative) Method for determining the maximum modulus value of the impedance of the public low-voltage power grid for a three-phase power supply system with each phase greater than 100A at 60Hz Appendix C (Informative) Power Supply Impedance Measurement and Investigation Methods 20 Reference 22

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 of Standardization Documents" drafted. This document is identical to IEC /T R60725.2012 "Determining the disturbance characteristics of electrical equipment (rated current of each phase is less than or equal to 75A) Reference Impedance and Utility Network Impedance Considerations". The document type is adjusted from IEC technical report to my country's national standardization guidance Sexual technical documents. The following minimal editorial changes have been made to this document. --- In the note of 5.2.2.1, the description of the power supply system adopted in China is supplemented; --- Modified the editorial errors in the original standard, and changed "JIS-CIEC 61000-3-2" in Table 3 to "JISC61000-3-2"; Modify the title of Table 9 "100V/200V to 120V/240V power supply system with power supply capacity less than 100A reference impedance" For the reference impedance of "100V to 120V power supply system with power supply capability less than 100A"; replace the power supply system in the first paragraph of 5.2.2.4 The description of "single-phase power supply system" is changed to "three-phase four-wire power supply system". Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed and managed by the National Electromagnetic Compatibility Standardization Technical Committee (SAC/TC246). This document was drafted by. China Electronics Standardization Institute, China Electric Power Research Institute Co., Ltd., Suzhou Test Electronics Co., Ltd. Technology Co., Ltd., Shanghai Institute of Metrology and Testing Technology. The main drafters of this document. Fu Jun, Chen Shigang, Yin Ting, Hu Xiaojun, Li Ni, Wan Baoquan, Zhao Wenhui, Zhu Sai. Determine the electrical equipment (rated current per phase Less than or equal to 75A) for disturbance characteristics Reference Impedance and Utility Network Impedance Considerations

1 Scope

This document gives information about the reference impedances available and the factors that need to be considered when deriving the reference impedances. Previously included in IEC 60555, it is now included in some parts of the IEC 61000-3 series. In addition, this document also gives information on the impedance of the public power supply network with a power supply current capability greater than or equal to 100A per phase. This document is suitable for obtaining reference impedance and common supply for determining disturbance characteristics of electrical equipment (rated current less than or equal to 75A per phase) Information on consideration of electrical network impedance.

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document. IEC 61000-3-3 Electromagnetic Compatibility (EMC) Part 3-3.Limits for devices with rated current ≤ 16A per phase and unconditional access tionalconnection) Note. GB/T 17625.2-2007 Electromagnetic Compatibility Limits for each phase rated current ≤16A and unconditionally connected equipment in public low-voltage power supply system Limitation of generated voltage variations, voltage fluctuations and flicker (IEC 61000-3-3.2005, IDT) IEC 61000-3-11 Electromagnetic Compatibility (EMC) Part 3-11.Limits for voltage variations generated in public low-voltage supply systems, tion) Note. GB/T 17625.7-2013 Electromagnetic compatibility limits are generated in the public low-voltage power supply system for equipment with rated current ≤75A and conditional access Limits of voltage variation, voltage fluctuation and flicker (IEC 61000-3-11.2000, MOD) IEC 61000-3-12 Electromagnetic Compatibility (EMC) Part 3-12.Limits per phase input current greater than 16A less than or equal to Note. GB/T 17625.8-2015 Electromagnetic Compatibility Limits The input current per phase is greater than 16A and less than or equal to 75A for equipment connected to public low-voltage systems Harmonic current limits generated by equipment (IEC 61000-3-12.2004, IDT)

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