Earth ground resistance tester is a high-precision testing instrument used in various fields such as substations to test grounding resistance and related parameters.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.

Technical index：

1

Conditions of use

-15℃∽40℃

RH＜80%

2

Anti-interference principle

Frequency conversion method

3

Electric source

AC 220V±10%

allowed generator

4

Measure output current

1A～5A Adjustable

5

Measure output voltage

0V～100V

6

Test power frequency

45, 50, 55, 60, 65HZ single frequency

45/55, 55/65 47.5/52.5HZ Automatic Dual Frequency

7

Output rating

500W

8

Distinguishing rate

Grounding impedance: 0.0001

Impedance angle：0.0001°
9

Precision

Grounding impedance:±(1%* reading +0.002)

Impedance angle:±(1%* reading +0.02°)
10

Resistance measurement range

0.001Ω～5Ｋ

11

Exterior dimensions

370（L）×295（W）×225（H）

12

Memory size

100 groups support U disk data storage

13

Weight

Main engine 13 Kg, ground pile 7 Kg

earth ground resistance tester

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