The ground grid ground resistance tester is developed by the DingSheng Electric R&D Center according to the current national industry standard DL/T911-2004. This large ground grid ground resistance test adopts the mainstream power frequency high current three-pole method measurement technology to prevent power frequency interference during grid operation and improve the accuracy of test results. The ground grid ground resistance tester for large ground grids uses a new type of off-frequency AC power supply, microprocessor control processing, and anti-interference signal processing measures, solving the anti-interference problem during the testing process, simplifying the test operation process and the accuracy and precision of test results, greatly reducing the labor intensity and testing cost for test personnel.
The ground grid ground resistance tester is suitable for testing ground resistance in various places such as substation ground grids of various voltage levels (4Ω), power plants, microwave stations (10Ω), lightning rods (10Ω), etc. The large ground grid ground resistance test output adopts dual frequency testing at 45Hz and 55Hz, with a maximum output current of 5A, which will not cause excessive potential on the grounding device during testing. This 5A large ground grid ground resistance tester also has strong anti-interference capability, allowing measurement to be carried out without power outage.
Alternative names for ground resistance tester
5A large ground grid ground resistance tester, large ground grid ground resistance tester, ground grid ground resistance tester, large ground grid ground resistance tester, large ground resistance tester, large ground grid ground test instrument, large ground grid ground impedance tester, high current ground grid ground resistance tester, anti-interference ground grid ground resistance tester, off-frequency ground grid ground resistance tester, ground grid impedance tester, ground grid ground continuity tester, large ground grid ground impedance tester, digital display ground grid resistance tester, building ground grid resistance tester, power line ground fault tester, ground grid tester
Functions of ground resistance tester
1. Good power frequency equivalence. The test current waveform is sinusoidal, with a frequency only 5Hz different from the power frequency, using 45Hz and 55Hz for measurement.
2. Strong anti-interference capability. This tester uses the off-frequency method for measurement, combined with modern software and hardware filtering technology, giving the tester high anti-interference performance and stable and reliable test data.
3. High accuracy of the 5A ground grid ground resistance tester. The basic error is only 0.005Ω, which can be used to measure large ground grids with very small grounding impedance.
4. The 5A ground grid ground resistance tester is powerful. It can measure current stake, voltage stake, ground resistance, step voltage, and contact voltage.
5. Simple operation. Full Chinese menu-based operation, directly displaying measurement results.
6. The 5A ground grid ground resistance tester requires less wiring labor and no need for high current cables.
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