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GDPQ-600H Power Quality Analysis System
GDPQ-600H Digital Intelligent Class A Power Quality Analysis System with 4V/4A Synchronous Measurement, 2-64th Harmonic Analysis, Voltage Sag/Swell Recording, Vector Analysis, for Power System Quality Evaluation & Fault Diagnosis.
- Description
- Specifications
- Applications
- Advantages
- FAQ
- Recommended Products
Description
GDPQ-600H is a professional Class A portable power quality analysis system designed for comprehensive power quality detection, fault diagnosis and performance evaluation in substations, power plants, industrial enterprises, data centers, new energy grid-connected systems and commercial buildings. It strictly complies with IEC 61000-4-30:2015 Class A, GB/T 19862-2016 and GB/T 14549-1993 standards, adopting high-speed 16-bit ADC + dual-core DSP+ARM architecture that enables 1024-point synchronous sampling per cycle and accurate measurement of all power quality parameters.
The instrument features 4 voltage channels and 4 current channels (including neutral line) for simultaneous measurement of three-phase four-wire systems. Its wide measurement range (0-900V voltage, 5A-2000A current with optional clamp-on sensors) covers all mainstream power systems. It supports comprehensive parameter measurement including harmonics (2-64th), interharmonics, voltage sag/swell/interruption, flicker (Pst/Plt), three-phase unbalance, power/energy, sequence components and K-factor. The 1280×800 high-resolution color wide-temperature LCD provides clear display of waveforms, vectors and data under strong sunlight.
Specifications
| Parameter | Specification |
|---|---|
| Compliance Standards | IEC 61000-4-30:2015 Class A, GB/T 19862-2016, GB/T 14549-1993, GB/T 12325-2008, GB/T 12326-2008 |
| Sampling Rate | 1024 points per cycle, synchronous sampling |
| Measurement Channels | 4 voltage channels + 4 current channels (including neutral line) |
| Voltage Measurement Range | 0V ~ 900V AC (RMS) |
| Voltage Accuracy | ±0.2% reading |
| Voltage Resolution | 0.01V |
| Current Measurement Range | Standard: 0A ~ 25A AC (RMS); Optional: 0A ~ 500A / 0A ~ 2000A AC |
| Current Accuracy | ±0.3% reading |
| Current Resolution | 0.001A |
| Phase Angle Accuracy | ≤0.1° |
| Frequency Measurement Range | 42.5Hz ~ 69Hz |
| Frequency Accuracy | ±0.01Hz |
| Power Accuracy | ±0.5% reading |
| Harmonic Measurement | 2-64th harmonics and interharmonics |
| Voltage Harmonic Accuracy | ≤1% reading (harmonic >1% nominal); ≤0.05% nominal voltage (harmonic <1% nominal) |
| Current Harmonic Accuracy | ≤1% reading + CT accuracy (harmonic >3% nominal); ≤0.05% current range (harmonic <3% nominal) |
| Voltage Unbalance Accuracy | ≤0.2% |
| Current Unbalance Accuracy | ≤0.5% |
| Flicker Measurement | Pst (10min), Plt (2h), accuracy ≤5% |
| Voltage Event Resolution | 1ms |
| Display | 1280×800 color wide-temperature LCD |
| Data Storage | 1000 groups of test data + 1000 power quality events |
| Communication Interface | USB 2.0 (U-disk export) |
| Power Supply | Built-in 11.1V/4400mAh lithium battery; AC 220V charging |
| Battery Life | ≥8 hours continuous working time |
| Charging Time | ≤4 hours |
| Operating Temperature | -20℃ ~ +50℃ |
| Humidity | 0% ~ 95% RH (non-condensing) |
| Dimensions (L×W×H) | 280×220×100mm |
| Weight | ~2.5kg (including battery) |
| Enclosure | ABS+PC engineering plastic with rubber protective cover |
Applications
Core Test Objects
- Power systems: Substations, distribution networks, transmission lines
- Industrial enterprises: Manufacturing plants, petrochemical plants, steel mills, semiconductor factories
- Commercial buildings: Data centers, hospitals, airports, office buildings
- New energy systems: Photovoltaic power plants, wind farms, energy storage systems
- Electrical equipment: Motors, transformers, inverters, UPS systems
Typical Usage Scenarios
- Power companies: Grid power quality monitoring, fault diagnosis and compliance testing
- Industrial users: Power quality assessment, equipment failure analysis and energy efficiency optimization
- Data centers: Power quality monitoring for sensitive IT equipment, UPS system testing
- New energy operators: Grid-connected power quality testing, inverter harmonic analysis
- Third-party testing institutions: Power quality certification testing, energy audit and safety assessment
Advantages
Compliance with Latest International Standards
Fully meets IEC 61000-4-30 Class A, GB/T 19862-2016 → test results are globally recognized and legally valid
Industry-Leading Class A Accuracy
±0.2% voltage accuracy, ±0.1° phase accuracy → ensures reliable and consistent test results, meets the strictest power quality measurement requirements
Comprehensive All-Parameter Measurement
Covers harmonics, voltage events, flicker, unbalance, power and energy → one instrument completes all power quality tests
Advanced Intelligent Diagnosis Functions
Automatic wiring identification, power loss calculation, electricity supplement calculation → eliminates manual calculation errors and improves work efficiency by 80%
High-Resolution Display & Intuitive Operation
1280×800 wide-temperature LCD, graphical user interface → clear display under strong sunlight, easy to operate
FAQ
Q: What is the difference between Class A and Class S power quality analyzers?
A: Class A analyzers have higher accuracy and stricter performance requirements, suitable for precision measurement, compliance testing and legal metrology. Class S analyzers are for general survey and monitoring. GDPQ-600H is a Class A analyzer, fully compliant with IEC 61000-4-30 standard, and its test results are legally valid.
Q: Can GDPQ-600H record voltage sag events?
A: Yes. GDPQ-600H can automatically record voltage sag, swell and interruption events with 1ms time resolution. It records the start time, end time, duration, minimum/maximum voltage and waveform of each event, which is crucial for analyzing the cause of equipment failures caused by voltage fluctuations.
Q: How does the automatic wiring identification function work?
A: The instrument measures the phase relationship between voltage and current, compares it with 48 common wiring modes, and automatically identifies the correct wiring mode. If there is a wiring error, it will display the error type and provide correction suggestions. This function is very useful for checking the wiring of electric energy meters and protection devices.
Q: Can GDPQ-600H measure harmonics up to 64th order?
A: Yes. GDPQ-600H can measure harmonics from 2nd to 64th order and interharmonics. It displays the harmonic content rate of each order and calculates the total harmonic distortion (THD). It also automatically judges whether each harmonic exceeds the limit according to national standards and gives a prompt.
