Ground resistance test system has the characteristics of small volume, light weight, convenient carrying, strong anti-interference performance, high accuracy, etc. 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.

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～400V

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

2000W

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）×358（H）

12

Memory size

100 groups support U disk data storage

13

Weight

Main engine 22 Kg, ground pile 7 Kg

Feature：

1. Accurate and fast, the instrument uses a professional DSP fast digital signal processor as the processing core, which greatly improves the operation and processing capability of the instrument itself on the premise of ensuring accurate measurement data.

2. The instrument is internally equipped with a calendar chip and a large-capacity memory, which can store the test results in chronological order, check the historical records at any time and print them out.

3. The data measured by the instrument can be exported through U disk, and then related data can be consulted and managed on pc.