WZDL-15 portable power (waveform) recording analyzer

The waveform recorder is a transient signal recording instrument developed for power system applications. The internal software of the instrument is pre-set with test templates for generator debugging, allowing users to easily complete generator short-circuit characteristic tests, no-load characteristic tests, excitation system disturbance tests, excitation system 10% step tests, demagnetization constant measurements, self calibration synchronization device calibration, unit load shedding records and other tests through the recorder.

The instrument has rich software components that allow users to perform graphic analysis, combinatorial operations, effective value calculation, AC power calculation, three-phase symmetry analysis, spectrum analysis, harmonic analysis, curve correlation analysis, graphic editing, and phasor diagram drawing through software components. The experimental data and analysis results can be generated into test reports in WORD/EXCEL format, or exported as JPG images through software to facilitate users' in-depth analysis and processing of the test results.

The instrument has 12 analog inputs, 12 active switch inputs, and 3 output signals, with a maximum sampling frequency of 100KHZ, which can basically meet the transient signal recording requirements of various tests in power systems. And all simulated channels are isolated from each other to avoid connection problems between different potential points during the experiment, which may cause faults in the tested system.

Portable power recording analyzer, portable waveform recorder, waveform recording analyzer

The instrument has a powerful software system, which mainly includes data acquisition, data compression and storage, waveform analysis and statistics, graphic drawing tools, spectrum analysis tools, waveform combination calculation tools, harmonic analysis, effective value calculation, power calculation, three-phase symmetry analysis, phasor diagram tools, etc. Its characteristics can be summarized as follows:

1. Real time drawing of experimental curves and providing multiple curve analysis tools, allowing users to perform arbitrary scaling and positioning operations on the curves

2. It is possible to edit the graphics in the current oscilloscope, including free identification, color transformation, etc., to facilitate the production of test reports

3. Provided spectrum analysis tools to enable users to easily obtain spectrum graphs of signals

4. You can freely choose the signal as the X-axis and Y-axis to draw the relationship curve of the signal

5. Provided a harmonic analysis tool that can perform harmonic analysis on the collected signals, with a maximum harmonic order of 1024

6. Combination operation tools enable users to perform operations such as addition, subtraction, multiplication, division, and integration on the collected signals

7. Calculate the effective value and power of the selected channel signal

8. Perform power and symmetry analysis on the selected three-phase signal

9. Draw a phasor diagram of the selected signal

10. Select channel signal type through software: DC instantaneous value or AC effective value

11. Built in standard test templates for generator three-phase short-circuit characteristic curve, no-load characteristic curve, excitation system disturbance test, demagnetization time constant, frequency and voltage characteristics, load rejection test, and self calibration synchronization test, with software automatically calculating test result parameters.

12. The instrument can automatically generate WORD test reports and Excel test reports

13. Automatic identification of curves in test reports enables fully automated production of test reports

14. The names and units of all sampling channels can be redefined

15. Automatic saving of experimental environment and instrument settings for various experiments

16. Automatically calculate test parameters for various test templates

17. Simple and convenient channel filtering method

18. Convenient export of test data using storage devices such as USB flash drives or portable hard drives

19. The Windows XPE operating system can achieve self-protection and recovery of software systems, preventing virus attacks and erosion

20. Adopting anti shake processing to avoid user error operations

The hardware system characteristics and technical parameters of the instrument are as follows:

1. 12 channels of low voltage/current analog signal acquisition, voltage input range -10V~10V, -200V~200V, -400V~400V, current input range -20mA~20mA, 1 channel of analog signal -100mV~100mV input channel (maximum allowable input voltage for 100mV channel<10V)

2. Voltage channel input range, voltage or current signal type selection, selected through software

3. Signal acquisition error: -400V~400V error<0.5V

-200V~200V error<0.2V

-10V~10V error<0.01V

-20mA~20mA error<0.02mA

-100mV~100mV error<0.2mV

Frequency measurement 30-170Hz error<0.1Hz

4. 12 active node switch measurement channels, switch signal range DC12-2220V

5. 3-channel switch output channel, maximum breaking capacity AC220V/1A

6. Split type chassis structure, the operating terminal allows users to more conveniently control experiments and analyze data

7. 2 USB ports for data download or keyboard/mouse input

8. 12.1-inch large color screen display, touch screen mode for human-machine interaction

9. The instrument comes with 8GB of data storage space

10. Sampling channel input impedance

-10V~10V voltage range input impedance 820k ohms

-200V~200V voltage range input impedance 820K ohms

-400V~400V voltage range input impedance 820K ohms

-20mA~20mA current range input impedance 50 ohms

-100mV~100mV voltage range input impedance>10M