1 Scope
This standard specifies the general requirements for monitoring equipments of power quality.
This standard is applicable to the following indoor equipments monitoring the power quality of AC power systems and their equipments.
——Stationary monitoring equipment;
——Portable monitoring equipment.
2 Normative References
The following standards contain provisions which, through reference in this text, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding correction to), or revisions of, any of these publications do not apply. However, the parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards. For undated references, the latest edition of the normative document referred to applies.
GB/T 191-2000 Packaging - Pictorial Marking for Handling of Goods (eqv ISO 780: 1997)
GB/T 2423.1-2001 Environmental Testing for Electric and Electronic Products-Part 2: Test Method-Test A: Low Temperature (idt IEC60068-2-1: 1990)
GB/T 2423.2-2001 Environmental Testing for Electric and Electronic Products-Part 2: Test Method-Test B: High Temperature (idt IEC60068-2-2: 1974)
GB/T 2423.4-1993 Basic Environmental Testing Procedures for Electric and Electronic Products-Test Db: Damp Heat, Cyclic (eqv IEC68-2-30: 1980)
GB/T 2423.5-1995 Environmental Testing for Electric and Electronic Products-Part 2: Test Method Test Ea and Guidance: Impact (idt IEC 60068-2-27: 1987)
GB/T 2423.10-1995 Environmental Testing for Electric and Electronic Products-Part 2: Tests methods-Test Fc and Guidance: Vibration (Sinusoidal) (idt IEC 682-6: 1982)
GB/T 2829-2002 Sampling Procedures and Tables for Periodic Inspection by Attributes (Apply to Inspection of Process Stability)
GB 4208-1993 Degrees of Protection Provided by Enclosure (IP Code) (eqv IEC 60529: 1989)
GB/T 12325-2003 Power Quality-Admissible Deviation of Supply Voltage
GB 12326-2000 Power Quality-Voltage Fluctuation and Flicker
GB/T 14549-1993 Quality of Electric Energy Supply-Harmonics in Public Supply Network
GB/T 15543-1995 Quality of Electric Energy Supply-Admissible Three-phase Voltage Unbalance Factor
GB/T 15945-1995 Quality of Electric Energy Supply Permissible Deviation of Frequency for Power System
GB 17625.1-2003 Electromagnetic Compatibility-Limits-Limits for Harmonic Current Emissions (Equipment Input Current≤16A per Phase) (IEC 61000-3-2: 2001, IDT)
GB/T 17626.2-1998 Electromagnetic Compatibility -Testing and Measurement Techniques-Electrostatic Discharge Immunity Test (idt IEC 61000-4-2: 1995)
GB/T 17626.3-1998 Electromagnetic Compatibility-Testing and Measurement Techniques-Radiated Radio-frequency Electromagnetic Field Immunity Test (idt IEC61000-4-3: 1995)
GB/T 17626.4-1998 Electromagnetic Compatibility-Testing and Measurement Techniques-Electrical Fast Transient/Burst Immunity Test (idt IEC61000-4-4: 1995)
GB/T 17626.5-1999 Electromagnetic Compatibility-Testing and Measurement Techniques-Surge (Impact) Immunity Test (idt IEC 61000-4-5: 1995)
GB/T 17626.11-1999 Electromagnetic Compatibility-Testing and Measurement Techniques-Voltage Dips, Short Interruptions and Voltage Variations Immunity Tests (idt IEC 61000-4-11: 1994)
3 Terms and Definitions
For the purposes of this standard, the following terms and definitions apply.
3.1
Voltage deviation
Deviation of the power supply voltage to the nominal voltage
Voltage deviation (%)= ×100
[GB/T 12325-2003, 3.4]
3.2
Frequency deviation
It refers to the difference of actual value and nominal value of system frequency.
[GB/T 15945-1995, 2.1]
3.3
Harmonic
It refers to the component with a frequency one integral multiple greater than the fundamental frequency and obtained by decomposing the fourier series of periodic alternating current component.
[GB/T 14549-1993, 3.4]
3.4
Voltage fluctuation
It refers to a series of changes or continuous changes for voltage root mean square value.
[GB 12326-2000, 3.8]
3.5
Flicker
It refers to the visual sense caused by instable lighting illumination.
[GB l2326-2000, 3.9]
3.6
Unbalance factor
Unblanced degree of three-phase in the three-phase power system and shall be represented by root mean square value percentage of negative sequence component and positive sequence component of voltage or current.
[GB/T l5543-1995, 2.1]
Foreword i
1 Scope
2 Normative References
3 Terms and Definitions
4 Classification and Composition
4.1 Classification
4.2 Equipment Composition
5 Technical Requirements
5.1 Fundamental Function Requirements
5.2 Accuracy Requirements
5.3 Electrical Performance Requirements
5.4 Regular Service Conditions
5.5 Shell and Mechanical Performance
5.6 Safety Performance
5.7 Electromagnetic Compatibility (EMC)
6 Test Methods
6.1 Test Conditions
6.2 Fundamental Function Inspection
6.3 Accuracy Test Method
6.4 Electrical Performance Test
6.5 Climatic Protection Test
6.6 Shell and Mechanical Performance Test
6.7 Safety Performance Test
6.8 Electromagnetic Compatibility Test
7 Inspection Rules
7.1 Delivery Inspection
7.2 Type Test
7.3 Sampling Plan of Type Test
7.4 Nonconformity Classification
7.5 Nonconformity Judgment
7.6 Inspection Item
8 Marking, Packaging, Transportation and Storage
8.1 Marking
8.2 Packaging
8.3 Transportation and Storage
