Digital Harmonic Power Quality and Energy Analyzer

Product Description

Digital Harmonic Power Quality and Energy Analyzer

I. Product overview

Power quality refers to the quality of the AC power supply via the utility grid to the user, which normally means the good or bad situation of the electric energy in transmission line. Power quality problems are mainly caused by the load side of the terminal.


II. Technical index

1. Input characteristics

Voltage measuring range: 10~660V.

Current measurement range,Clamp transformers (four types):

5A / 25A (standard)

100A / 500A (optional)

400A / 2000A (optional)

1000A/5000A (optional)

Phase angle measuring range: 0 ~ 359.99 °.

Frequency measurement range: 45 ~ 65Hz.

Voltage channels: three-channel (U_A,U_B,U_C).

Current channels: three-channel (I_A,I_B,I_C).

Maximum harmonic analysis times: 63 times.

Maximum continuous storage period in 1 minute interval: 18 months.

2. Accuracy

Measurement of electrical parameters section:

Voltage: ± 0.2%

Frequency: ± 0.01Hz

Current, power: ± 0.5%

Phase: ± 0.2 °

Power quality section:

Fundamental voltage tolerance: ≤0.5% F.S.

Fundamental current tolerance: ≤1% F.S.

Phase between fundamental voltage and current measurement error: ≤0.2 °

Percentage of harmonic voltage measurement error: ≤0.1%

Percentage of harmonic current measurement error: ≤0.2%

Three phase voltage unbalance error: ≤0.2%

Voltage deviation error: ≤0.2%

Voltage fluctuation error: ≤0.2%

3. Working temperature: -10 ºC ~ + 40 ºC

4. Charging Power: 220V AC, 45Hz-65Hz frequency

5. Host Power: ≤3VA

6. Battery maximum working time: ≤10 hours

7. Insulation:

1) The insulation resistance between the voltage, current input terminal and the housing ≤100MΩ.

2) Withstand 1.5KV (valid value) with power frequency on operating power input and the shell, which lasts one minute.

8. Size: 258mm × 158mm × 58mm

9. Weight: 1.8Kg

 
 

III. Function features 
1. Input single power, internal digital combination standard sine wave test source output
2. Phase angle measurement function: measure the phase angle between high voltage side and low voltage side. Measure the turn ratio and angle of "Non integral point" transformer.
3. It can conduct single-phase measurement and three-phase winding automatic test. Three phase turn ratio value, phase angle value, error, tapping position, tapping value can be measured for once.It also can identify connecting group number automatically.
4.Testing results can be displayed in the form of digit and hexagon vector diagram, which makes transformer connecting group can be made out obviously.
5. With blind test function: There is no need to choose connecting method and group. When measuring Y/△,△/Y transformer, no external short-circuit is needed,  connecting method can be shifted automatically according to the chosen testing contents.
6. With tapping test function: TTR and TTR error in the position of each tapping switch can be gauged quickly. Just input rated TTR once, instead of inputing over and over again, TTR error in tapping position can be calculated.
7. With functions of turns ratio measurement and voltage TTR measurement.
8. With 5.6 inch LCD, the effect of data & figure display is visualized and fine.
9. With small size and light weight, it is easy to carry.
10. With built-in high capacity chargeable lithium battery. Test can be conducted without any power supply on site, and once the battery is charged fully, it can make measurement for more than 500 times continuously.


IV. Related Products