After-sales Service: | Warranty Certificate |
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Warranty: | 1 Year |
Display Type: | LCD |
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The earth grid grounding resistance tester is a high-precision testing instrument used in various fields such as substations to test grounding resistance and related parameters. The instrument has the characteristics of small volume, light weight, convenient carrying, strong anti-interference performance, high accuracy, etc. The instrument is of an integrated structure, with a built-in frequency conversion power supply module, and the output power supply is continuously variable in frequency. The frequency can be changed to 45Hz or 55Hz, the high-speed processor core is built in, and the high-end digital filtering technology is adopted, thus effectively avoiding the interference of power frequency electric field to the test and fundamentally solving the difficult problem of accurate measurement under strong electric field interference. A large number of on-site tests and users' use show that when grounding grid tests are carried out in the harsh electromagnetic environment of the substation, the measurement data of the grounding resistance tester of the grounding grid are accurate, stable and good in repeatability, and are ideal instruments for measuring the characteristic parameters of large and medium-sized grounding grids.
1 |
Conditions of use |
-15ºC-40ºC |
RH<80%<> |
2 |
Anti-interference principle |
Frequency conversion method |
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3 |
Electric source |
AC 220V±10% |
allowed generator |
4 |
Measure output current |
1A~5AAdjustable |
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5 |
Measure output voltage |
0V~400V |
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6 |
Test power frequency |
45, 50, 55, 60, 65HZ single frequency 45/55, 55/65 47.5/52.5HZ Automatic Dual Frequency |
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7 |
Output rating |
2000W |
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8 |
Distinguishing rate |
Grounding impedance: 0.0001 |
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Impedance angle:0.0001° |
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9 |
Precision |
Grounding impedance:±(1%*reading+0.002) |
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Impedance angle:±(1%*reading+0.02°) |
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10 |
Resistance measurement range |
0.001Ω~5K |
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11 |
Exterior dimensions |
370(L)×295(W)×358(H) |
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12 |
Memory size |
100 groups support U disk data storage |
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13 |
Weight |
Main engine 22 Kg, ground pile 7 Kg |