HAOMAI ELECTRIC TEST EQUIPMENT CO.,LTD
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Portable Power Quality Analyzer
Model: PQA-400
Portable Power Quality Analyzer PQA-400 is a three-phase, multi-functional, intelligent, simple man-machine operation comprehensive test instrument. It has easy to use, large LCD color display, high resolution, Bilingual Interface in Chinese and English, box structure shell and so on features. It can simultaneously measure the 4-channel current (ABC three phase and neutral wire cur-rent), 4-channel voltage (ABC three-phase voltage and neutral line voltage to ground), the peak value of current voltage, maximum/minimum value over a period, three-phase imbalance factor, short-time voltage flicker, transformer K factor, active power, reactive power, apparent power, power factor and displacement power factor, active power, reactive power, apparent power, total harmonic distortion and harmonic etc.; display real-time waveform, harmonic ratio bar charts of current voltage; dynamically capture instantaneous change of voltage current, monitoring starting current, monitoring the power parameters and generate the alarm list, generate the trend chart for a long time record test data.
Portable Power Quality Analyzer PQA-400 adopts DSP+ARM dual-processor architecture, DSP is responsible for data acquisition and algorithm processing, ARM is responsible for communication protocol and man-machine interface processing. Analog signal acquisition uses two 4-channel synchronous sampling with 16-bit resolution of ADI Company to achieve the highest sampling rate of 1MSPS, which ensures the accuracy and information integrity of the channel, ensures not to pass any transient change in the power grid, and makes the detection of transient waveform, sudden rise and fall, and instantaneous interruption more accurate. The built-in flash memory can simultaneously store 60 sets of screen shots, 150 sets of transient voltage/current capture waveforms, 12800 sets of alarm logs, and the start current detection mode can continuously capture 100s of the start current waveform. The built-in 2G memory card is used to store long-term trend curve records and record 20 power parameters at the same time (optional). It can collect and record trend curve records for up to 300 days once in 5s.
Technical Data
| Power supply | Rechargeable lithium-ion battery packs 9.6V, backup charger. |
| Battery indicator | Battery symbol 5 cells display the power. When the battery power is too low, it prompts automatic shutdown after 1 minute. |
| Power consumption | Current consumption of normal test 490 mA, continuous working for 10 hours. |
| Display mode | LCD color screen, 640dots×480dots, 5.6 inches, display domain: 116mm×88mm. |
| Size of clamp |
HR-008 small sharp current clamp: 7.5mm×13mm HR-020 circle current clamp: 20mm×20mm HR-050 circle current clamp: 50mm×50mm |
| Instrument dimensions | L×W×H: 277mm×227.5mm×153 mm |
| Number of channels | 4U & 4I |
| Phase-to phase voltage | 1.0V~2000V |
| Phase-to-neutral voltage | 1.0V~1000V |
| Current |
HR-008 current clamp: 10mA~10.0A; HR-020 current clamp: 0.10A~100A; HR-050 current clamp: 1.0A~1000A; HR-300R Rogowski Coil with Integrator: 10A ~ 6000A |
| Frequency | 40Hz~70Hz |
| Parameters of electricity | W, VA, Var, PF, DPF, cosφ, tanφ |
| Energy parameters | Wh, Varh, Vah |
| Harmonic | Order 0~50. |
| Total harmonic distortion | Order 0~50, each phase |
| Expert mode | Yes |
| Number of Transient records | 150 sets |
| Voltage flicker | Yes |
| Starting current mode | Yes, 100 seconds |
| 3 phases unbalance | Yes |
| Record | 300 days(simultaneous recording 20 parameters, record one point every 5 seconds). |
| Min/Max recorded value | Measurement of maximum and minimum values over a period of time. |
| Alarm | 40 different types of parameter selections, 12,800 sets alarm logs. |
| Peak | Yes |
| Phasor diagram display | Automatically |
| Capacity of snapshots | 60 |
| Menu language | English/Chinese |
| Communication | USB |
| Automatic switching off | When an alarm campaign is initiated or a search for transients, an inrush current capture, or a trend recording is pending or in progress, the device is not automatic switching off. |
| In other test mode, 15 minutes without keystrokes, automatic shutdown after prompt 1 minute. | |
| Backlight function | Yes, suitable for use at night and dark place. |
| Weight | Host: 2.41kg (with battery). |
| HR-008 small sharp current clamp: 168g×4 | |
| HR-020 circle current clamp: 252g×4 | |
| HR-050 circle current clamp: 463g×4 | |
| HR-300R Rogowski Coil with Integrator: 280g×4 | |
| Test wires and power adapter: 800g | |
| Total weight: about 10.8kg (with packaging) | |
| Length of voltage test wire | 3m |
| Length of current sensor wire | 2m |
| Working temperature and humidity | -10°C~40°C; below 80%Rh. |
| Storage temperature and humidity | -10°C~60°C; below 70%Rh. |
| Input impedance | Input impedance of test voltage: 1MΩ. |
| Withstand voltage | Withstand 3700V/50Hz sinusoidal AC voltage for 1 minute between instrument wiring and shell. |
| Insulation | Between instrument wiring and shell ≥10MΩ. |
| Structure | Double insulation, with insulation vibration-proof sheath. |
| Safely rules | IEC 61010 1000V Cat III / 600V CAT IV, IEC61010-031, IEC61326, Pollution degree: 2. |
In the current electric power application, due to more and more large electrical equipment, more and more complex power grid system caused by the fault is more and more complex, more and more difficult to troubleshoot, and because of the development of various industries to the power quality of the power grid put forward higher and higher requirements.
Portable Power Quality Analyzer PQA-400 is a measuring and analyzing instrument that can eliminate complex power system faults more quickly and accurately, and monitor and maintain power quality parameters more comprehensively and systematically.