GB/T 17625.8-2015 English PDF (GB/T17625.8-2015)

GB/T 17625.8-2015: Electromagnetic compatibility -- Limits -- Limits for harmonic currents produced by equipment connected to public low-voltage systems with input current 16 A and 75 A per phase
Delivery: 9 seconds. Download (& Email) true-PDF + Invoice.
Get Quotation: Click GB/T 17625.8-2015 (Self-service in 1-minute)
Historical versions (Master-website): GB/T 17625.8-2015
Preview True-PDF (Reload/Scroll-down if blank)

GB/T 17625.8-2015
Electromagnetic compatibility - Limits - Limits for harmonic currents produced by equipment connected to public low-voltage systems with input current> 16 A and ≤75 A per phase
ICS 33.100.10
L06
National Standards of People's Republic of China
Electromagnetic compatibility limits input current is greater than each
16A 75A or less connected to the public low
System equipment generates harmonic current limits
inputcurrent> 16Aand≤75Aperphase
(IEC 61000-3-12.2004, Electromagneticcompatibility (EMC) -
Part 3-12. Limits-Limitsforharmoniccurrentsproducedbyequipment
> 16Aand≤75Aperphase, IDT)
Issued on. 2016-04-01 2015-09-11 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Introduction Ⅲ
1 Scope 1
2 Normative references 1
3 Terms and definitions 2
4 Measurement Condition 5
4.1 fundamental reference current 5
Harmonic current measuring 4.2 5
4.3 equipment consists of several components composed of 7
5 equipment requirements and limits 7
7 5.1 Control Method
5.2 emission limits 7
6 product documentation 9
7 10 test and simulation conditions
7.1 Overview 10
7.2 Direct measurement requirements 10
7.3 simulation requirements 11
7.4 Test and simulation General Conditions 11
Devices Appendix A (informative) This section does not comply with the limits and requirements 12
Annex B (informative) Information about PWHD 13
Annex C (normative) harmonic current limits Notes 14
Annex D (normative) approximate interpolation formula 15
References 17
Foreword
GB 17625 "EMC limits" currently includes the following components.
GB 17625.1-2012 Electromagnetic compatibility - Limits for harmonic current emissions (equipment input current ≤16A)
GB 17625.2-2007 Electromagnetic compatibility limits of the rated current per phase ≤16A and unconditional access to public low-voltage equipment
Limit voltage generated in the power supply system, voltage fluctuations and flicker
GB /Z17625.3-2000 electromagnetic compatibility limits rated current greater than 16A for equipment in low-voltage power supply system
Limiting the voltage fluctuations and flicker
GB /Z17625.4-2000 Electromagnetic compatibility Limits high voltage power system to assess load emission limits for distorting
GB /Z17625.5-2000 Electromagnetic compatibility Limits high voltage power system to assess load fluctuation of emission limits
GB /Z17625.6-2003 electromagnetic compatibility limits rated current greater than 16A for equipment in low-voltage power supply system
Harmonic current limitation
Equipment GB/T 17625.7-2013 Electromagnetic compatibility limits of the rated current ≤75A and conditional access in public low-voltage supply
Limit voltage electricity generated in the system, voltage fluctuations and flicker
Pressure system equipment with harmonic current limits
This section GB 17625 "Electromagnetic Compatibility Limits" in Section 8.
This section drafted in accordance with GB/T 1.1-2009 given rules.
This section uses the translation method identical with IEC 61000-3-12.2004 "Electromagnetic compatibility (EMC) - Part 3-12. Limits of each phase output
The current is greater than 16A 75A or less connected to the public low-voltage device system harmonics generated by current limit. "
Consistency correspondence between this part of international documents and normative references of our files are as follows.
--- GB/T 156-2007 standard voltage (IEC 60038.2002, MOD)
--- GB/T 4365-2003 Electrotechnical terminology Electromagnetic compatibility [IEC 60050 (161).1990, IDT]
--- GB/T 18039.3-2003 electromagnetic compatibility environment utility voltage power supply system frequency conducted disturbances and signaling and
Tolerance level (IEC 61000-2-2.1990, IDT)
--- GB/T 18039.4-2003 electromagnetic compatibility environment facility frequency conducted disturbances compatibility level (IEC 61000-2-4.
1994, IDT)
--- GB 17625.1-2012 Electromagnetic compatibility - Limits for harmonic current emissions (equipment input current ≤16A)
(IEC 61000-3-2.2009, IDT)
--- Test GB/T 17626.7-2008 Electromagnetic compatibility - Testing and measurement techniques - power supply systems and equipment connected harmonics, interharmonics
Quantity measuring instruments and guidelines (IEC 61000-4-7.2002, IDT)
This section makes the following editorial changes.
The standard name --- this section be changed to "Electromagnetic compatibility limits the input current is greater than 16A per phase 75A or less connected to the public
Equipment produced by a low pressure system harmonic current limits ";
--- IEC 61000-3-12.2004 IEC 61000-3 series of standards to Part 12, according to an "EMC limits" Country
Number of sort criteria, this part of the standard Part 8 pairs should be;
--- Deleted IEC 61000-3-12.2004 English original foreword and introduction.
Electromagnetic Compatibility This part of the National Standardization Technical Committee (SAC/TC246) and focal points.
This section drafted by. China Electric Power Research Institute, State Grid Electric Power Research Institute, Wuhan NARI limited liability company, Carey Power Supply Bureau.
The main drafters of this section. Zhang Guangzhou, Wan Baoquan, Li Ni, Wang Jianhua, Pei Chunming, dry Zhe Yuan, Xing hair, Xiehui Chun, Yin-ting.
Electromagnetic compatibility limits input current is greater than each
16A 75A or less connected to the public low
System equipment generates harmonic current limits
1 Scope
This section refers to the injection of public power supply system harmonic current limits.
A) requirements and emission limits for equipment.
b) type testing and simulation methods.
Note 1. According to the test in this section is a complete one-piece type test equipment.
Note 2. This section Compliance may also be verified simulation methods to determine.
This section applies to every phase rated current greater than 16A, less electrical and electronic equipment 75A of these devices intended to access the following classes
Type of public low-voltage AC power distribution network.
a) The nominal voltage of 220V and below, single-phase, two-wire or three-wire system.
b) The nominal voltage of 380V and below, three-phase, three-wire or four-wire system.
c) the nominal frequency of 50Hz.
This section applies to the low-pressure access device intended public system. Does not apply to the proposed access only to medium or high voltage power supply system connected to the public
Devices on its own low-voltage systems.
Note 1. The scope of this section is defined in the device and connected to public low-voltage systems, since launching its own low-voltage systems installed in the device, can be pressed in the common coupling
Point with the program IEC /T R61000-3-6 regulations, and/or controlled by the overall agreement between the user and the electricity sector. It expects its own system
Operators in ensuring EMC management environment meet the requirements of IEC /T R61000-3-6 and/or contractual agreements manner.
Note 2. If the device only access to its own system, the manufacturer should be indicated in the product documentation.
Note 3. The input current of less than 16A per IEC 61000-3-2, but does not meet the standards set forth in the limits and requirements of professional equipment, every input current
This section requires more than 16A and the equipment does not meet the limits, may allow connection to a particular type of low-voltage power supply system, see Appendix A.
Note 4. This section limits do not apply to independent harmonic filters.
Limits given in this section (see Chapter 5) adapted to be connected to a 220/380V, 50Hz system equipment connected to other distribution systems
The device is not included in this range.
NOTE. The limits applicable to other systems will increase in this part of the other editions in the future.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
IEC 60038 IEC standard voltage (IEC standardvoltages)
IEC 60050-161 International Electrotechnical Vocabulary (IEV) Chapter 161. Electromagnetic compatibility [InternationalElectrotechnicalVocab-
ulary (IEV) -Chapter161. Electromagneticcompatibility]
IEC 61000-2-2 Electromagnetic compatibility (EMC) - Part 2-2. Environmental Public voltage power supply system frequency conducted disturbances and signaling
Level compatible lose [Electromagneticcompatibility (EMC) -Part 2-2. Environment-Compatibilitylevels
forlow-frequencyconducteddisturbancesandsignalinginpubliclow-voltagepowersupplysystems]
IEC 61000-2-4 Electromagnetic compatibility (EMC) - Part 2-4. Environmental plant frequency conducted disturbances compatibility level [Electro-
magneticcompatibility (EMC) -Part 2-4. Environment-Compatibilitylevelsinindustrialplantsfor
low-frequencyconducteddisturbances]
IEC 61000-3-2 Electromagnetic compatibility (EMC) Part 3-2. Limits for harmonic current emissions (equipment input current
≤16A) [Electromagneticcompatibility (EMC) -Part 3-2. Limits-Limitsforharmoniccurrentemis-
sions (equipmentinputcurrent≤16Aperphase]
IEC 61000-4-7 Electromagnetic compatibility (EMC) - Part 4-7. Testing and measurement techniques power supply systems and equipment connected harmonics, harmonic
Measurements and instrumentation, wave guide between the [Electromagneticcompatibility (EMC) -Part 4-7. Testingand
measurementtechniques-Generalguideonharmonicsandinterharmonicsmeasurementsandinstru-
mentation, forpowersupplysystemsandequipmentconnectedthereto]
3 Terms and Definitions
IEC 60050 (161) defined by the following terms and definitions apply to this document.
3.1
THD totalharmonicdistortion
THD
Harmonic rms (In the n-th harmonic current) and its square ratio of the rms fundamental rms.
THD = Σ
n = 2
In
I1
Note. According to IEC 61000-2-2 to select the definition.
3.2
Part weighted harmonic distortion partialweightedharmonicdistortion
PWHD
A set of valid values higher harmonics selected (from the beginning of the 14th harmonic) ratio of the fundamental RMS, weighted with the harmonic number n.
PWHD = Σ
n = 14
nInI1
Using some weighted harmonic distortion, it is to ensure that reduce the impact of higher harmonic currents on the measurement results, and does not require every
Harmonic prescribed limits.
3.3
Point of common coupling pointofcommoncoupling; PCC
Closest to the user, and other users can access or connection points on the public power supply system has access.
3.4
Single-phase equipment single-phaseequipment
A device connected to the phase and neutral line.
Note. Single-phase devices include those containing equipment connected to a single or multi-phase conductors and a neutral line between the load thereof.
3.5
White equipment interphaseequipment
Two-phase equipment connected between the lines.
Under normal operation, the neutral line is not as current carriers.
3.6
Three-phase equipment three-phaseequipment
And three-phase line connected devices.
Under normal operation, the neutral line is not as current carriers.
Note. all three phases to be connected with the phase and neutral, and the neutral line as a current carrier equipment, believed to be three separate single-phase equipment.
3.6.1
Three phase equipment balancedthree-phaseequipment
Device is connected to the three-phase three-phase power lines, and a three-wire (three phase) the same current amplitude and waveforms may be composed of any one of the other two phases are
A relative phase shift of the fundamental period of 1/3 obtained.
3.6.2
Unbalanced equipment unbalancedthree-phaseequipment
Device is connected to the three-phase three-phase power lines, and a three-wire (three-phase) current amplitude and waveform are not the same, or that between any two phases
A phase difference is not equal to the fundamental period of 1/3.
3.7
Mixing equipment hybridequipment
Device between phase and neutral or phase consisting of a balanced three-phase load and one or more load connection.
3.8
Short circuit capacity short-circuitpower
Ssc
Three-phase short-circuit capacity of the system by the nominal voltage at the PCC Unominal and line impedance Z is calculated.
Ssc = U2nominal/Z
Where.
Z --- frequency under the system impedance.
3.9
The rated apparent power ratedapparentpoweroftheequipment
Sequ
Rated current rms Iequ equipment with rated voltage specified by the manufacturer's Up (single-phase) or Ui (phase) value calculated.
a) Sequ = UpIequ (single-phase and single-phase equipment part mixing equipment).
b) Sequ = UiIequ (white device).
c) Sequ = 3UiIequ (part of a three-phase three phase equipment and mixing equipment).
d) Sequ = 3UpIequmax (Unbalanced equipment, Iequmax flowing through the three phases of any one phase current RMS maximum).
On voltage, Up or Ui is based on IEC 60038 nominal system voltage value (such as single-phase equipment for 220V, three-phase equipment to 380V).
3.10
Short circuit than short-circuitratio
Rsce
Eigenvalues define a single device as follows.
a) Rsce = Ssc/(3Sequ) (single-phase and single-phase equipment part mixing equipment).
b) Rsce = Ssc/(2Sequ) (white device).
c) Rsce = Ssc/Sequ (three-phase and three-phase equipment part of all mixing equipment).
Note 1. Rsce by the following formula directly with the known basic amount associated with.
Rsce = U/(3 × Z × Iequ) (single-phase and single-phase equipment part mixing equipment).
Rsce = U/(2 × Z × Iequ) (white devices).
Rsce = U/(3 × Z × Iequ) (part of a three-phase three phase equipment and mixing equipment).
Rsce = U/(3 × Z × Iequmax) (Unbalanced equipment).
Where.
U = Unominal, assumed to be equal Ui or 3 × Up, both available.
Note 2. As defined Rsce and Rsc shown in IEC /T R61000-2-6 defined differently.
Note 3. For a mixing device, method of calculating individual Rsce values given in 5.2...