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HYDB Ground Resistance Tester For Earth Grid

At present, in the power system, the grounding resistance test of the earth network is mainly measured by the power frequency high current tripole method. In order to prevent the power frequency interference generated during the operation of the power grid and improve the accuracy of the measurement results, the insulation preventive test procedure stipulates that the test current of the power frequency high current method shall not be less than 30A.
  • Detailed Description

1.The measured power frequency equivalence is good. The test current waveform is a sine wave, and the minimum frequency difference from the power frequency is 0.1Hz, and the maximum frequency frequency difference is 10Hz. It can be used at 50hz or 60hz.

2.Strong anti-interference ability. The instrument adopts the different frequency method for measurement, combined with the modern hardware and software filtering technology, making the instrument has a very high anti-interference performance, and the test data is stable and reliable.

3.High measurement accuracy. The basic error is only 0.005 Ω, which can be used to measure the earth grid with very small grounding impedance.

4.powerful. It can measure current pile, voltage pile, ground grid impedance, grounding resistance, grounding conduction, soil resistivity, etc.

5.Full touch LCD screen, super large full graphics operation interface, every process is very clear. Operators need no additional training for professional use. The whole process can be done with a little touch.

It is equipped with calendar chips and large memory to save results at any time. History can view history at any time and can print out. Both the current time and the storage time can be displayed and printed.

Scientific and advanced data management: the instrument data can be exported through the U disk, and the data can be viewed and managed through special software on any PC machine. Ability to generate reports and test reports

8.on the safe side. The instrument has the protection of grounding, current and pressure, sound and light alarm to ensure the safety of test personnel and equipment.

9.With the vector test function, can measure the impedance and pure resistance. The impedance angle can be measured.

10.The wiring labor amount is small, no need for large current line.

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