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WDWR-5A Large Grid Grounding Resistance Tester

This instrument is suitable for testing the power frequency grounding impedance, grounding resistance, auxiliary machine and other power frequency characteristic parameters and soil resistivity of various grounding devices. The instrument adopts different frequency anti-jamming technology, which can accurately measure the data under the power frequency of 50Hz in the strong interference environment. The maximum test current is 5A, which will not cause the potential of the grounding device to be too high during the test. At the same time, it also has a strong anti-interference ability, so it can be measured without power failure.

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Product Details

1. Impedance measurement range: 0Ω～200Ω

2. Resolution: 0.001Ω

3. Measurement error: ± (reading × 2% + 0.005Ω)

4. Anti-power frequency 50Hz voltage interference ability: 10V

5. Test current waveform: sine wave

6. Test current frequency: 45Hz, 55Hz dual frequency

7. Maximum output current: 5A

8. Maximum output voltage: 400V

9. Measurement line requirements: The cross-sectional area of the copper core of the current line is greater than or equal to 1mm2

The cross-sectional area of the copper core of the voltage line is greater than or equal to 1.0mm2

10. Power supply: AC220V±10%, 50Hz

11. Dimensions: 440×350×210mm

12. Instrument weight: 10kg

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