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GB/T 17215.211-2021: Electricity metering equipment(AC) - General requirements, tests and test conditions - Part 11: Metering equipment
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Electricity metering equipment(AC) - General requirements, tests and test conditions - Part 11: Metering equipment
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GB/T 17215.211-2021
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Electricity metering equipment (a.c.) -- General requirements, tests and test conditions -- Part 11: Metering equipment
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Basic data | Standard ID | GB/T 17215.211-2021 (GB/T17215.211-2021) | | Description (Translated English) | Electricity metering equipment(AC) - General requirements, tests and test conditions - Part 11: Metering equipment | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | N22 | | Word Count Estimation | 114,163 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 17215.211-2021: Electricity metering equipment(AC) - General requirements, tests and test conditions - Part 11: Metering equipment
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Electricity metering equipment(AC)-General requirements, tests and test conditions-Part 11.Metering equipment
ICS 17.220.20
N22
National Standards of People's Republic of China
Replace GB/T 17215.211-2006
Electric measuring equipment (AC) General requirements, tests and
Test conditions Part 11.Measuring equipment
Released on 2021-04-30
2021-11-01 implementation
State Administration of Market Supervision and Administration
Issued by the National Standardization Management Committee
Table of contents
Preface Ⅶ
Introduction Ⅷ
1 Scope 1
2 Normative references 2
3 Terms and definitions 3
3.1 General definition 3
3.2 Definitions related to functional units 6
3.3 Definition of instrument port 9
3.4 Definition of mechanical unit 9
3.5 Definitions related to measurement 11
3.6 Definitions related to external influences 14
3.7 Definition of test 15
3.8 Definitions related to electromechanical instruments 15
3.9 Definitions related to instrument identification and symbols 16
3.10 Definitions related to defects 17
3.11 Definitions related to measurement performance protection 18
4 Standard battery value 19
4.1 Voltage 19
4.2 Current 19
4.3 Frequency 20
4.4 Power consumption 21
5 Structure 22
5.1 General requirements 22
5.2 Mechanical test 22
5.3 Window 23
5.4 Seal regulations 23
5.5 Measured value display 23
5.6 Measured value storage 24
5.7 Output 24
5.8 Electric pulse input 26
5.9 Work indicator 26
6 Identification and documentation of the instrument 26
6.1 Marking of instrument accuracy grade 26
6.2 Nameplate 26
6.3 Wiring diagram and terminal identification 27
6.4 Symbol 30
6.5 File 31
7 Measurement performance 31
7.1 General test conditions 31
7.2 Methods of accuracy verification 33
7.3 Instrument constant test 33
7.4 No-load condition (creeping) test 33
7.5 Starting current test 34
7.6 Measurement test of initial inherent error 34
7.7 Repeatability test 35
7.8 Variation requirement test 36
7.9 Load current rise and fall test 36
7.10 Error consistency test 36
7.11 Error limit test caused by influence quantity 37
7.12 Combination error test of electric energy indication 37
7.13 Timing accuracy test 38
7.14 Combination maximum allowable error test 39
8 Climate 39
8.1 General requirements 39
8.2 Temperature range, environmental class 39
8.3 Other climatic conditions 40
8.4 Climate and environment impact test 40
9 External influences 43
9.1 General requirements 43
9.2 Acceptance criteria 43
9.3 Electromagnetic compatibility (EMC) test 44
9.4 Tests against other influences 52
10 Metering performance protection 59
10.1 General requirements 59
10.2 Embedded software (firmware) identification 59
10.3 Software protection 59
10.4 Parameter protection 59
10.5 Separation of meters and sub-components 60
10.6 Software separation 60
10.7 Data storage and transmission of data through communication systems 60
10.8 Maintenance and Upgrade 61
10.9 Detection function of event record 62
10.10 Verification method 62
11 Type test 63
11.1 Test conditions 63
11.2 Type test report 63
Appendix A (informative appendix) The main technical changes of this part compared with GB/T 17215.211-2006 65
Appendix B (Normative Appendix) Optical test output 68
Appendix C (Normative Appendix) Type A and Type B electric pulse 69
Appendix D (Normative Appendix) Long-distance electric pulses for special applications in accordance with GB/T 3369.1 72
Appendix E (informative appendix) Instrument symbols and signs 75
Appendix F (Normative Appendix) Calculation of Combined Error 81
Appendix G (informative appendix) Instrument port 83
Appendix H (Informative Appendix) Test Setup for Electromagnetic Compatibility Test 85
Appendix I (informative appendix) Conducted differential mode current interference test 88
Appendix J (informative appendix) Ring wave test 89
Appendix K (informative appendix) Magnet for external magnetic field influence test 90
Appendix L (Normative appendix) Test circuit diagram for harmonic influence test in current and voltage circuit 91
Appendix M (Informative Appendix) Short-term overcurrent test waveform 97
Appendix N (informative appendix) Load current rapid change test 98
Appendix O (Normative Appendix) Ground Fault Test Circuit Diagram 99
Appendix P (Normative Appendix) Recommended test sequence table 100
References 103
Figure B.1 Test layout of optical test output 68
Figure B.2 Waveform of optical test output 68
Figure C.1 Electrical pulse output physical interface 69
Figure C.2 Electric pulse output waveform 70
Figure C.3 Pulse output test layout 70
Figure C.4 Pulse input test layout 71
Figure D.1 Output pulse waveform 73
Figure D.2 Pulse output test layout 73
Figure D.3 Pulse input test layout 74
Figure G.1 Typical port configuration for direct access to the instrument (example) 83
Figure G.2 Typical port configuration for connecting to the instrument via a transformer (example) 84
Figure H.1 Test setup for radio frequency electromagnetic field test 85
Figure H.2 Test setup for radio frequency electromagnetic field test with standard table 85
Figure H.3 Test setup for fast transient burst test. voltage circuit 86
Figure H.4 Test setup for fast transient burst test with standard meter. voltage circuit 86
Figure H.5 Test setup for fast transient burst test. current circuit 87
Figure H.6 Test setup for fast transient burst test with standard meter. current circuit 87
Figure I.1 Test setup for differential mode current interference from power electronics and power line communication systems (derived from IEC 61000-4-19) 88
Figure L.1 Test circuit diagram (5th harmonic, interharmonic, higher harmonic, peak wave, square top wave influence test) 91
Figure L.2 Pulse train trigger waveform (2 cycles on, 2 cycles off) 92
Figure L.3 Harmonic content information distribution of burst trigger waveform (incomplete Fourier analysis) 92
Figure L.4 90° phase trigger waveform 93
Figure L.5 Harmonic content information distribution of 90° phase trigger waveform (incomplete Fourier analysis) 93
Figure L.6 Half-wave rectification (DC and even harmonics) test circuit diagram 94
Figure L.7 Half-wave rectification waveform (DC and even harmonics) 94
Figure L.8 Harmonic content information distribution of half-wave rectification waveform (incomplete Fourier analysis) 95
Figure L.9 Square top wave waveform current amplitude 95
Figure L.10 Peak wave waveform current amplitude 96
Figure O.1 Circuit for simulating the ground fault state of U1 phase 99
Figure O.2 Voltage 99 on the tested instrument
Table 1 Standard nominal voltage 19
Table 2 Voltage range 19
Table 3 Standard turning current 19
Table 4 Starting current requirements 20
Table 5 Minimum current requirements 20
Table 6 Maximum current 20
Table 7 Frequency range 21
Table 8 Power consumption 21
Table 9 Marking and document requirements 28
Table 10 Voltage and current balance 32
Table 11 Reference conditions 32
Table 12 Mandatory test points for determining the initial inherent error test 35
Table 13 Test points of repeatability test 36
Table 14 Temperature range 39
Table 15 Temperature limits 39
Table 16 Environmental class 40
Table 17 Other climatic conditions 40
Table 18 High temperature test temperature and test duration 41
Table 19 Low temperature test temperature and test duration 41
Table 20 Sunlight Radiation Test Procedure 42
Table 21 Acceptance criteria 44
Table 22 AC voltage sag and short-term interruption test 45
Table 23 DC voltage sag and short-term interruption test 46
Table 24 Evaluation of the basic functions of the instrument under the influence of voltage changes 55
Table 25 Recommended verification methods for each project 63
Working conditions specified in Table C.1 69
Table C.2 Pulse output test 70
Table C.3 Pulse input test 71
Working conditions specified in Table D.1 72
Table D.2 Pulse output test 74
Table D.3 Pulse input test 74
Table E.1 Voltage mark (example) 75
Table E.2 Symbols indicating accuracy grades and meter constants (example) 75
Table E.3 Measuring unit symbols (example) 75
Table E.4 Symbols connected to instrument via transformer (example) 77
Table E.5 Symbols for displaying information identification (example) 77
Table E.6 Measured identification (example) 78
Table E.7 Basic unit symbols for meters (example) 78
Table E.8 Auxiliary device symbols (example) 79
Table E.9 Symbols (examples) of components used for movable unit support 79
Table E.10 Symbols used for communication ports (example) 80
Table E.11 Other symbols (examples) 80
Table L.1 Square top wave waveform 96
Table L.2 Peak Wave Waveform 96
Table P.1 Recommended test sequence 100
Electric measuring equipment (AC) General requirements, tests and
Test conditions Part 11.Measuring equipment
1 Scope
This part of GB/T 17215.2 specifies the general mechanical and electrical equipment applicable to the type test of AC electric energy meters (hereinafter referred to as "meters").
Gas requirements and test conditions, requirements for functions and markings, requirements and test conditions related to climate and electromagnetic environment, resistance to external influences and tests
Test conditions and embedded software requirements.
Note 1.For other general requirements of the instrument (such as safety, reliability, etc.), please refer to the relevant parts of GB/T 17215.3 (all parts) and GB/T 17215.9 (all parts)
Minute. For the specific accuracy requirements and other special requirements of each accuracy level instrument, please refer to the relevant regulations of GB/T 17215.3 (all parts).
This part is applicable to newly manufactured electricity used to measure and control electric energy in a 50Hz or 60Hz power grid with a voltage not exceeding 600V.
The measuring equipment, all the special function units except for the electric energy measurement function, can be integrated in the watch case or form a separate housing.
Note 2.The above voltage is the line-to-neutral voltage derived from the nominal voltage, see Table 7 in IEC 62052-31.2015.
If the meter has functions other than measuring active energy and reactive energy, for example.
---Measurement of voltage amplitude, current amplitude, power, frequency, power factor (or sinφ), etc.;
---Measurement of power quality parameters;
---Measurement of other forms of energy such as water, gas, steam, heat, etc.;
---Load control function;
---Data communication interface.
Encapsulated in the case, the relevant standards can be applied to these functional requirements, but the requirements for these functions are not within the scope of this section.
Note 3.The requirements for power monitoring devices and measurement functions (such as voltage amplitude, current amplitude, power, frequency, etc.) have been covered in GB/T 18216.12, but
Equipment that complies with GB/T 18216.12 is not suitable for use as a billing meter, unless it also complies with this part and GB/T 17215.3 (all parts)
Relevant regulations.
Note 4.The requirements for power quality monitoring instruments have been covered in IEC 62586-1, and the test methods for power quality monitoring functions have been included in GB/T 17626.30
Covered in. The test requirements for power quality monitoring functions are covered in IEC 62586-2.
If the instrument is designed to be installed on a specified matching (instrument) socket or rack, the requirements of this section apply, and the instrument is
The meter is installed on the specified matching (instrument) socket or rack, but the requirements for the specified matching (instrument) socket or rack are not in this section.
Within the range.
Note 5.Examples of rack-mounted instruments are. rail-mounted instruments, panel-mounted instruments, etc.
If the instrument is designed to install a separate indicating display, the requirements of this section apply.
If each phase of the meter has multiple current circuits, the requirements of this section apply to all the electrical circuits of any current measuring unit in the case.
Flow circuit.
This section also applies to auxiliary input and output circuits, work indicators and test outputs of measuring equipment.
Note 6.For example. pulse input and output, control input and output, electric energy test output.
This section also covers the general content of the accuracy test, such as reference conditions, repeatability.
This section distinguishes.
---Electromechanical instruments and static instruments;
---Single-phase instrument and multi-phase instrument;
IEC 61000-4-8.2009 Electromagnetic compatibility (EMC) Part 4-8.Test and measurement technology Power frequency magnetic field immunity test
IEC 61000-4-11 Electromagnetic Compatibility (EMC) Part 4-11.Test and measurement techniques Voltage dips, short-term interruptions and voltage
Varying immunity test
IEC 61000-4-19.2014 Electromagnetic Compatibility (EMC) Part 4-19.Testing and Measurement Technology AC Power Port Immunity
Frequency range 2kHz~150kHz, differential mode conduction interference test
IEC 62052-31.2015 Electrical measuring equipment (AC) General requirements Test and test conditions Part 31.Product safety requirements
Summation test
IEC CISPR32 electromagnetic compatibility radiation requirements for multimedia equipment
ISO 4892-3 Plastic Laboratory Light Source Irradiation Method Part 3.UV Fluorescent Lamp
3 Terms and definitions
The following terms and definitions apply to this document.
3.1 General definition
3.1.1
Electromechanicalmeter
The current in the fixed coil interacts with the induced current in the conductive movable unit (usually a disc) to generate a
A meter that can rotate proportionally.
3.1.2
Staticmeter
A meter that generates an output proportional to the measured electrical energy by acting on a solid-state (electronic) unit by current and voltage.
3.1.3
Active energy meter (active) energymeter
Watt-hourmeter
A meter that measures active energy by integrating active power over time.
Note. Rewrite GB/T 2900.79-2008, definition 313-06-01.
3.1.4
Reactive energy meter
Var-hourmeter
An instrument that measures reactive energy by integrating reactive power over time.
Note. Rewrite GB/T 2900.79-2008, definition 313-06-02.
3.1.5
Multi-energymeter
A meter that measures two or more forms of electrical energy (active electrical energy, reactive electrical energy, and apparent electrical energy) in a single enclosure.
3.1.6
Multi-functionmeter
In a separate housing, it contains other than the energy measurement functions described in the standards for active energy meters and reactive energy meters
Functional meter.
Note. Multi-function meters can include. maximum demand indicator, time switch, ripple control receiver or radio receiver, pulse output, power monitoring function, electrical
Performance quality function, input-output control function, communication function, etc.
3.1.7
Multi-ratemeter
A meter with several registers, each register records the electric energy according to the definition of the tariff meter.
Note 1.The rate table can be kept in the meter and work based on a time reference or consumption reference, or it can work through an external control signal.
Note 2.Rewrite GB/T 2900.79-2008, definition 313-06-09.
3.1.8
Intervalmeter
A meter that displays and stores the measurement results within a predetermined time interval.
[OIMLR46-1/-2.Edition2012(E), definition 2.1.2]
3.1.9
Direct connected meter directconnectedmeter
An instrument that is directly connected to the circuit under test without using an external instrument transformer.
3.1.10
Access to instrument transformeroperatedmeter via transformer
An instrument connected to the circuit under test using an external instrument transformer.
3.1.11
Bidirectionalmeter
A meter that measures the power flow in two directions.
Note. For example. receive electrical energy at the measurement point (such as input) and provide electrical energy (such as output) at the same measurement point.
3.1.12
Standard electric energy meter referencestandard(meter)
Design and work in a controlled laboratory environment to obtain the highest accuracy and stability, and traceable to national or international basic standards for
A meter for measuring electrical energy units.
3.1.13
Metertype
Used to specify the specific design of an instrument manufactured by a manufacturer.
For electromechanical instruments, each type has.
a) Similar measurement performance;
b) It is determined that the components of the above-mentioned performance have the same and consistent structure;
c) The ratio of the maximum current to the turning current is the same;
d) The current coil has the same number of ampere turns at the turning current, and the voltage coil has the same number of turns per volt at the nominal voltage.
Note 1.The same type can have several turning current values and nominal voltage values.
Note 2.The ratio of the highest value to the lowest value of the basic speed of each instrument rotor of the same type should not exceed 1.5.
Note 3.The meter is identified by the manufacturer with one or more sets of letters or numbers, or a combination of letters and numbers. There is only one logo for each type.
Note 4.The type is represented by the sample table used for the type test, and its characteristic values (minimum current, turning current, maximum current and nominal voltage) are from the table provided by the manufacturer
Select from the given value in the grid.
Note 5.When the number of turns derived from the number of ampere turns is not an integer, the product of the turning current value and the number of coil turns may be different from the value of the sample table representing the type. in order to
There is an integer turn, you can choose a similar value, either higher or lower. Only for the same reason, the number of turns per volt of the voltage coil can also be different,
But not more than 20% of the prototypes representing this type.
For stationary instruments, each type has.
a) Similar measurement performance;
b) The components that determine the above properties have the same and consistent structure.
Note 6.The same type can have several turning current values and nominal voltage values.
Note 7.The instrument is identified by the manufacturer with one or more sets of letters or numbers, or a combination of letters and numbers. There is only one logo for each type.
Note 8.The type is represented by the sample table used for type testing, and its characteristic values (minimum current, turning current, maximum current and nominal voltage) are provided by the manufacturer in the form
Select from the given value in.
3.1.14
Active power
The root mean square value (RMS) of the current and voltage of any sinusoidal frequency component of the periodic signal in a single-phase circuit is compared with the phase between the voltage and current.
The product of the cosine of the azimuth angle, the phase angle is the angle of the voltage signal vector relative to the current signal vector.
Note 1.In the sine state, the active power is the real part of the complex power.
Note 2.For non-sinusoidal periodic signals, the active power is the algebraic sum of the active power of the sinusoidal frequency components.
Note 3.In the International System of Units (SI), the unit of active power is watts (W).
[GB/T 2900.74-2008, definition 131-11-42]
3.1.15
Active energy
The integral of active power over time as defined in 3.1.14.
Note. In the International System of Units (SI), the unit of active energy is Joule (J); the other unit is Watt hour (Wh).
3.1.16
Reactivepower(var)
The root mean square value (RMS) of any sinusoidal frequency component of a periodic signal in a single-phase circuit, current and voltage, and the phase between voltage and current
The product of the sine of the angle, the phase angle is the angle of the voltage signal vector relative to the current signal vector.
Note 1.Reactive power and reactive energy only define the fundamental frequency.
Note 2.The algorithm used to calculate reactive power is not specified, as long as the meter meets GB/T 17215.323 or GB/T 17215.324.
3.1.17
Reactive energy
For single-phase circuits, the integral of reactive power over time as defined in 3.1.16; for multi-phase circuits, the algebraic sum of the reactive energy of each phase.
3.1.18
Operator
Service personnel who are responsible for the operation and maintenance of measuring equipment and provide users with relevant and necessary safety information (when applicable).
[IEC 62052-31.2015, definition 3.5.22]
3.1.19
Nominal value
The value used to mark and identify a component, device, equipment or system.
Note. The nominal value is generally a rounding value.
[GB/T 2900.83-2008, definition 151-16-09]
3.1.20
Reference value
Under the reference conditions, it is regarded as a specified value of the influence quantity.
3.1.21
Servicetype
The number of phases and lines applicable to the instrument (for example. single-phase two-wire, three-phase three-wire, three-phase four-wire).
3.1.22
Meter connection mode meterconnectionmode
The wiring arrangement of the meter terminals and the configuration of metering-related embedded software (firmware) parameters suitable for the type of meter used.
3.1.23
Bi-directional (energy) flow
The ability of the meter to measure the power flow in two directions (positive and negative).
[OIMLR46-1/-2.Edition2012(E), definition 2.2.34]
3.1.24
Positive-directiononly(energy)flow
The meter only measures the power flow in one direction (forward).
[OIMLR46-1/-2.Edition2012(E), definition 2.2.35]
3.1.25
Uni-directional (energy) flow
The ability of the meter to measure the power flow regardless of the direction of the power flow.
[OIMLR46-1/-2.Edition2012(E), definition 2.2.36]
3.1.26
Positive(energy)flow
Toward the direction of the power flow of users.
[OIMLR46-1/-2.Edition2012(E), definition 2.2.37]
3.1.27
Negative (energy) flow
For two-way meters and one-way meters, the direction of the power flow opposite to the positive (electric energy) flow.
Note. For the positive (electric energy) power flow, the opposite direction is called the reverse (electric energy) power flow (see 3.1.28).
[OIMLR46-1/-2.Edition2012(E), definition 2.2.38]
3.1.28
Reverse (energy) flow
For a forward electric energy meter, the direction of the electric energy flow opposite to the positive (electric energy) flow.
[OIMLR46-1/-2.Edition2012(E), definition 2.2.39]
3.2 Definitions related to functional units
3.2.1
Measuring element
An instrument component that produces an output proportional to electrical energy.
3.2.2
Test output
Can be used to test the output of the instrument.
Note. The test output can be an optical pulse output, or an electrical pulse output, or a communication interface.
3.2.3
Operationindicator
An indicator that gives a visual signal of the working status of the instrument.
Note. Rewrite GB/T 2900.90-2012, definition 314-07-13.
3.2.4
Pulse
A waveform that departs from the initial level for a defined duration and finally returns to the initial level.
3.2.5
Pulse output
Used to transmit pulse output.
3.2.6
Optical test output
Used to test the optical pulse output of the instrument.
3.2.7
Receiving (or scanning) head
A functional unit used to receive the pulses emitted by the optical pulse output.
3.2.8
Pulse input
Input for receiving pulses.
3.2.9
Memory
A unit for storing digital information.
3.2.10
Non-volatile memory
A memory that can hold information when the power is off.
3.2.11
Indicating display
A display that shows the measurement results.
Note 1.The indicator display can also be used to display other related information.
Note 2.Rewrite OIMLR46-1/-2.Edition2012(E) and define 2.1.12.
3.2.12
Integratedindicatingdisplay
The indicator display integrated in the instrument housing.
3.2.13
Detachedindicatingdisplay
An indication display that is installed in its own casing, separated from the casing of the meter, and powered by the meter.
Note. The separation indicating display is not a separate ordinary man-machine interface device, such as a tablet computer or an industrial man-machine interface device. Separate indication display by
The instrument is powered and only used with the specified instrument type.
3.2.14
Register
An electromechanical or electronic device that stores and displays information that characterizes the measured information.
Note. For stationary instruments, the registers include memory and indicator displays.
3.2.15
Current circuit currentcircuit
The internal connection of the meter and the part of the measurement unit through which the current of the circuit connected to the meter flows.
Note. For the instrument connected to the instrument via a transformer, "the circuit connected to the instrument" refers to the "secondary of the external instrument transformer".
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