Ground Grid Ground Resistance Tester
Darui Electric recommends:
The Ground Grid Ground Resistance Tester is suitable for testing various grounding devicesfor power frequency grounding impedance, contact voltage, step voltage, and other power frequency characteristic parameters, as well as soil resistivity.This instrument uses an off-frequency anti-interference technology, which can accurately measure data at 50Hz 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 measurements can be performed without power outage.
Performance Features
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. The instrument uses the off-frequency method combined with modern software and hardware filtering technology, giving it high anti-interference performance and stable, reliable test data.
3. High accuracy. The basic error is only 0.005Ω, making it suitable for measuring large ground grids with very small grounding impedance.
4. Powerful functions. It can measure current stake, voltage stake, grounding resistance, step voltage, and contact voltage.
5. Simple operation. Full Chinese menu-based operation, directly displaying measurement results.
6. Low wiring labor, no need for high-current cables.
Variable frequency anti-interference grounding impedance meter.
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, transfer 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 meter: 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 transfer 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.
