GR-II earth grid grounding resistance tester
Scope of application
It is suitable for testing the power frequency ground impedance and other power frequency characteristic parameters of various grounding devices and soil electrical
Performance characteristics
1. It adopts different frequency method to measure, which has high anti-interference performance, and the test data is stable and reliable.
2. The basic error is only 0.005Ω, which can be used to measure large ground grids with small ground impedance;
3. It can measure the grounding resistance of current piles, voltage piles, grounding resistance, on-resistance, and soil resistivity of ground grids;
4. Full Chinese menu operation, direct display of measurement results.
Technical index
Impedance measurement range | 0～5000Ω |
Resolution | 0.001Ω |
Measurement error | ±(reading×2%+0.005Ω) |
Test current waveform | Sine wave |
Test current frequency | 45, 50, 55, 60, 65Hz single frequency |
45/55Hz, 55/65Hz, 47.5/52.5Hz automatic double frequency conversion | |
Output current | 1、2、3、4、5A |
Maximum output voltage | 400V |
Measuring line requirements | Current wire copper core cross-sectional area ≥ 1.5mm2 |
Voltage line copper core cross-sectional area ≥1.0mm2 |
No. 255, Shanpu Road, Hedong Industrial Park, Wuzhong Economic Development Zone, Suzhou City, Jiangsu Province
Tel：+86-512-67266386
Fax：+86-512-67167303
szhd@szhddq.com
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