Ground Grid Ground Resistance Tester
DARUI Electric recommends:
The Ground Grid Ground Resistance Tester is suitable for testing the power frequency grounding impedance, contact voltage, step voltage, and other power frequency characteristic parameters of various grounding devices, as well as soil resistivity.This instrument adopts the heterodyne anti-interference technology, which can accurately measure data at 50Hz power frequency under strong interference environments. The maximum test current is 50A, which will not cause excessive potential rise of the grounding device during testing. It also has strong anti-interference capability, so measurement can be carried out without power outage.
Performance Features
1. Good power frequency equivalence. The test current waveform is sinusoidal, with a frequency difference of only 5Hz from the power frequency, and measurements are taken at both 45Hz and 55Hz.
2. Strong anti-interference capability. The instrument uses the heterodyne method for measurement, combined with modern software and hardware filtering technology, giving the instrument high anti-interference performance and stable and reliable test data.
3. High accuracy. The basic error is only 0.005Ω, enabling measurement of large ground grids with very small grounding impedance.
4. Powerful functions. Can measure current stake, voltage stake, grounding resistance, step voltage, contact voltage.
5. Easy operation. Full Chinese menu-based operation, directly displaying measurement results.
6. Low wiring labor, no need for large current cables.
Variable frequency anti-interference grounding impedance tester.
1. Large ground grid variable frequency high current grounding characteristic measurement system: The system has high output power (0-20KW), high voltage (0-1000V), and high output current (0-50A). It accurately measures grounding impedance, grounding reactance, grounding resistance, contact voltage, step potential difference, field surface potential gradient, contact voltage, contact potential difference, step voltage, transferred potential, continuity resistance, soil resistivity, and other parameters. It can comprehensively measure various characteristic parameters of large ground grids, fully meeting the requirements of the new version DL/T475-2006 "Guide for Measurement of Grounding Device Characteristic Parameters".
2. Large ground grid variable frequency high current grounding impedance measurement system: The system has high output power (0-10KW), output voltage (0-1000V), and output current (0-50A). It accurately measures grounding impedance, grounding resistance, contact potential difference, grounding reactance, continuity resistance, soil resistivity, and other parameters.
3. Variable frequency anti-interference grounding impedance tester: The system has an output power of 2kW, output voltage (0-200-400V), and test output current (0-10A). It accurately measures grounding impedance, grounding resistance, grounding reactance, continuity resistance, soil resistivity, and other parameters, and can meet the measurement of conventional grounding grids.
2. Accurately measure the field surface potential gradient of large grounding grids;
3. Accurately measure the contact potential difference, contact voltage, step potential difference, and step voltage of large grounding grids;
4. Accurately measure the transferred potential of large grounding grids;
5. Measure the continuity resistance of grounding down conductors;
6. Measure soil resistivity.
Note: The above information and technical parameters are compiled and released by Yangzhou DARUI Electric Co., Ltd.
