Power quality refers to the quality of the AC power supplied to users through the public grid. In simple terms, it refers to the condition of the power in the grid lines. Power quality issues are mainly caused by terminal loads. For example, reactive loads with impact characteristics can cause significant fluctuations in grid voltage, reducing the quality of power supply.

When the power quality of the grid is disturbed or polluted and fails to meet the relevant national standards, targeted measures must be taken to improve the power quality of the grid. To understand the actual situation of power quality in the grid, appropriate equipment is required for testing and analysis. Considering the actual domestic conditions, our company has timely developed and introduced a specialized KDZW-130 tablet-type power quality analyzer suitable for the national conditions.

1. Multi-channel Measurement: Simultaneous measurement of 4 voltage channels and 4 current channels.

2. Electrical Parameter Measurement: Simultaneous measurement of voltage magnitude, current magnitude, phase, frequency, active power, reactive power, power factor, and other parameters.

3. Harmonic Measurement: Capable of measuring voltage and current harmonics from the 2nd to the 64th order.

4. Total Harmonic Distortion (THD) Measurement: Can measure total harmonic distortion rate.

5. Flicker and Voltage Fluctuation Measurement: Measures short-term flicker (PST), long-term flicker (PLT), and voltage fluctuations.

6. Sequence Voltage Measurement: Measures positive-sequence voltage, negative-sequence voltage, zero-sequence voltage, and voltage imbalance.

7. Sequence Current Measurement: Measures positive-sequence current, negative-sequence current, zero-sequence current, and current imbalance.

8. Transient Parameter Measurement: Features voltage sag and swell event recording, automatically starts waveform recording function, capturing actual waveforms five cycles before and after the event.

9. Oscilloscope Function: Real-time waveform display for voltage and current size and distortion, with zoom capabilities on the instrument.

10. Hexagon Chart Display: Performs vector analysis for metering circuits and protection device circuits, checks wiring errors in metering devices; automatically judges 48 types of wiring methods in three-phase three-wire systems; automatic calculation of compensation energy for users with incorrect wiring.

11. Optional Large Clamp Meter: Can measure the ratio and phase difference of low-voltage current transformers.

12. Harmonic Content Display: Displays harmonic content in bar chart format for good visual effects.

13. Large Internal Data Storage: Can continuously store data for over 18 months at a 1-minute interval (storage intervals range from 1 second to 1000 minutes).

14. 10-inch Large Color LCD Screen: Resolution of 1280×800.

15. Capacitive Touchscreen Operation: Similar to tablet computers and smartphones, easy to learn and use.

16. Mouse Support: Suitable for operators with different habits.

17. Harmonic Measurement: Automatically determines if each harmonic exceeds national standards and provides prompts.

18. Harmonic Limit Query: Can query national standard limits for harmonic content.

19. Frequency Measurement Range: 42.5Hz-69Hz, capable of measuring both 50Hz and 60Hz power systems.

20. Data Storage: Can store data on a USB drive for historical queries.

21. Dedicated Data Analysis Management Software: Analyzes and processes test results, helps understand the periodic changes in power quality and load at the test point, essential for taking appropriate measures.

22. Report Generation: Software can generate professional power quality analysis reports according to national standards.

23. Compact Size and Lightweight: Easy to carry.

24. Built-in High-performance Lithium-ion Battery: Enters power-saving mode automatically, allows continuous operation for over 10 hours without external power, suitable for field testing.