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GB/T 39853.2-2021Power quality measurement in power supply systems - Part 2: Functional tests and uncertainty requirements (English PDF)

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Issued by

State Administration for Market Regulation, China National Standardization Administration

Level / Type

National · Recommended

Issue date

March 9, 2021

Implementation date

October 1, 2021

Scope

GB/T 39853.2-2021 (Power quality measurement in power supply systems - Part 2: Functional tests and uncertainty requirements) is available as an English-translated PDF.

GB/T 39853.2-2021 is the Chinese standard "Power quality measurement in power supply systems - Part 2: Functional tests and uncertainty requirements". Its scope clause reads: This part of GB/T 39853 specifies the functional test and uncertainty requirements of the instrument.

The power quality parameters in the power supply system are monitored, and the measurement method defined by IEC 61000-4-30 (Type A or Type S) is used. This section applies to power quality monitoring equipment that complies with GB/T 39853.1.

This part may also be referenced by other product standards (such as digital fault recorders, gateway meters, medium voltage or high voltage protection relays).

The product standard stipulates that the device embeds the Class A or Class S power quality functions defined by the IEC 61000-4-30 standard. These requirements apply to single-phase, two-phase and three-phase AC 50Hz or 60Hz power supply systems.

This section does not involve user interfaces or topics that are not related to the measurement performance of the device. This section does not cover the post-processing and interpretation of data, such as the use of dedicated software. Its clauses include terms, definitions, abbreviations, signs and symbols.

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Document preview — GB/T 39853.2-2021

National Standard of the People's Republic of China

Classification: N 22

Issued by: State Administration for Market Regulation, China National Standardization Administration

Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions, abbreviations, signs and symbols
3.1 General terms and definitions
3.2 Terms and definitions related to uncertainty
3.3 Symbol
4 Requirements
4.1 Meet the requirements of Class A products
4.2 Meet the product requirements of S category
5 Common requirements for functional type tests
5.1 General principles of the test
5.2 Test procedure
6 Comply with IEC 61000-4-30 Class A instrument functional test procedures
6.1 Grid frequency
6.2 Power supply voltage amplitude
6.3 Flicker
6.4 Interruption, sag and swell of power supply voltage
6.5 Unbalanced supply voltage
6.6 Voltage harmonics
6.7 Voltage interharmonics
6.8 Grid signal voltage of power supply
6.9 Measuring negative and positive deviation parameters
6.10 Marking
6.11 Clock uncertainty test
6.12 The amount of change caused by external influence
6.13 Rapid Voltage Change (RVC)
6.14 Current amplitude
6.15 Harmonic current
6.16 Interharmonic current
6.17 Current imbalance
7 Instrument function test procedures in accordance with IEC 61000-4-30S category
7.1 Grid frequency
7.2 Power supply voltage amplitude
7.3 Flicker
7.4 Interruption, sag and swell of power supply voltage
7.5 Unbalance of power supply voltage
7.6 Voltage harmonics
7.7 Voltage interharmonics
7.8 Grid signal voltage on the power supply
7.9 Measuring positive and negative deviation parameters
7.10 Mark
7.11 Clock uncertainty test
7.12 The amount of change caused by external influence
7.13 Rapid voltage changes
7.14 Current amplitude
7.15 Harmonic current
7.16 Interharmonic current
7.17 Current imbalance
8 Calculation of measurement uncertainty and operating uncertainty
Appendix A (Normative Appendix) Basic Uncertainty and Operating Uncertainty
Appendix B (informative appendix) Uncertainty of integrated system
Appendix D (informative appendix) Further test of sag (amplitude and phase angle changes)
Appendix E (informative appendix) Suspended (multiphase) further test. test procedure
Appendix F (Normative Appendix) Seamless measurement of voltage amplitude and harmonic test
Appendix G (informative appendix) Seamless measurement of voltage amplitude and harmonics
Appendix H (informative appendix) Test equipment recommendations
Appendix I (informative appendix) Recommendations and test reports related to the Declaration of Conformity (DoC)
References

1 Scope

This part of GB/T 39853 specifies the functional test and uncertainty requirements of the instrument.

The power quality parameters in the power supply system are monitored, and the measurement method defined by IEC 61000-4-30 (Type A or Type S) is used.

This section applies to power quality monitoring equipment that complies with GB/T 39853.1.

This part may also be referenced by other product standards (such as digital fault recorders, gateway meters, medium voltage or high voltage protection relays).

The product standard stipulates that the device embeds the Class A or Class S power quality functions defined by the IEC 61000-4-30 standard.

These requirements apply to single-phase, two-phase and three-phase AC 50Hz or 60Hz power supply systems.

This section does not involve user interfaces or topics that are not related to the measurement performance of the device.

This section does not cover the post-processing and interpretation of data, such as the use of dedicated software.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article

Pieces. For undated reference documents, the latest version (including all amendments) is applicable to this document.

IEC 61000-2-4 Electromagnetic Compatibility (EMC) Part 2-4.Compatibility level of low-frequency conducted disturbance in environmental factories (Electro- magneticcompatibility(EMC)-Part 2-4.Environment-Compatibilitylevelsinindustrialplantsfor low-frequencyconducteddisturbances]

IEC 61000-4-7 Electromagnetic Compatibility (EMC) Part 4-7.Test and measurement technology Power supply system and its connected equipment harmonics

And general guidelines for interharmonic measurement and instruments [Electromagneticcompatibility[EMC)-Part 4-7.Testingandmeas- urementtechniques-Generalguideonharmonicsandinterharmonicsmeasurementsandinstrumenta- tion,forpowersupplysystemsandequipment]

IEC 61000-4-15 Electromagnetic Compatibility (EMC) Part 4-15.Testing and Measurement Technology Flicker Function and Design Specification [E- lectromagneticcompatibility(EMC)-Part 4-15.Testingandmeasurementtechniques-Flickermeter-Func- tionalanddesignspecifications]

IEC 61000-4-30.2015 Electromagnetic Compatibility (EMC) Part 4-30.Test and Measurement Technology Power Quality Measurement Method [E- lectromagneticcompatibility(EMC)-Part 4-30.Testingandmeasurementtechniques-Powerquality measurementmethods]

ISO /IEC Guide98-3.2008 Uncertainty of Measurement Part 3.Guidelines for Expression of Uncertainty in Measurement (GUM.

1995)[Uncertaintyofmeasurement-Part 3.Guidetotheexpressionofuncertaintyinmeasurement (GUM.1995)]

3 Terms, definitions, abbreviations, signs and symbols

The following terms and definitions defined by IEC 61000-4-30 apply to this document.

GB/T 15284 | GB/T 17215.321 | GB/T 34067.2 | GB/T 17215.241 | GB/T 13850 | GB/T 39853.1 | […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 210 pages — is available in the English PDF.

Referenced standards

Normative references

IEC 61000

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