Parameters and specifications of double jaw ground resistance tester, double jaw ground resistance t

The double jaw grounding resistance tester is suitable for testing the grounding resistance of various equipment and building grounding devices. Soil resistivity can also be measured under a wide range of conditions. In addition to the function of traditional auxiliary ground electrode measurement of ground resistance, the instrument also has the unique function of unassisted ground electrode measurement, which changes the traditional measurement principle and means of testing ground resistance.

Excellent grounding system is an important guarantee for the safe and reliable operation of electric power, telecommunications and electrical equipment. The size of the grounding resistance is the basis for judging the quality of the grounding system. Accurate, fast, simple and reliable grounding resistance measurement methods have become an urgent need for technological progress in the field of lightning protection and grounding.

In addition to the function of the traditional auxiliary ground electrode measurement of grounding resistance, the instrument also has the unique function of unassisted ground electrode measurement, which changes the traditional measurement principle and means of testing grounding resistance: the use of two-electrode measurement principle and the use of double jaw measurement technology do not need to hit the auxiliary ground electrode, nor do they need to isolate the grounding body from the load, so as to achieve the best measurement. Under the conditions of single-point grounding system and strong interference, the measurement method of hitting the auxiliary ground pole can be used for measurement.

The double jaw grounding resistance tester is suitable for the grounding resistance test of various equipment and building grounding devices. Soil resistivity can also be measured under a wide range of conditions. In addition to the function of traditional auxiliary ground electrode measurement of grounding resistance, the instrument also has the unique function of unassisted ground pole measurement, which changes the traditional measurement principle and means of testing grounding resistance.

Double Jaw Ground Resistance Tester Features:

1 Double clamp method Ground pile method Triple measurement method of leakage current:

Suitable for any grounding place, multi-point or single-point grounding, can be tested normally, and can test the leakage current for the first time in China).

2. Strong anti-interference ability: self-generated high-frequency current, so as to filter the harmonic interference current such as 50Hz Hz in the mains, even in the environment of 500kV substation, it can be accurately measured;

3. Wide measurement range and high resolution: range range, resolution, and the following grounding resistance can also be accurately measured;

4. Large jaw design: jaw diameter 50mm (standard configuration), to meet the situation of using flat iron steel as grounding lead, special jaw size can be customized according to customer requirements;

5. Large-capacity data storage: 200 sets of measurement data can be stored;

6 Simple operation, single operation: full Chinese operation interface, small size, light weight, explosion-proof portable case, easy to carry for field measurement.

JT2571 Digital Earth Resistance Tester Parameters.

Conditions of Use. Ambient temperature: 0 +45

Relative humidity: 85%RH

Measurement range and constant current value (RMS).

Resistance: 0 2 (10mA), 2 20 (10mA), 20 200 (1mA).

Voltage: AC 0 20V

Measurement accuracy and resolution.

Accuracy: 0 1 20v 3% 1d

Resolution: Measurement error caused by auxiliary ground resistance and ground voltage.

The auxiliary ground resistor rc (between C1 and C2) is allowed

0～2ω，2～20ω ≤1kω

20～200ω ≤2kω

RP (between P1 and P2) < 40K Error 5% Allowable Ground Voltage (Power Frequency RMS) 5V Error 5% Power Supply and Power Consumption.

The maximum power loss is 2W

DC: 8, r6) battery.

AC: 220V 50Hz

Volume and weight.

Volume: 220mm 200mm 105mm Weight:

Double-clamp characteristics. 1 Double clamp method Ground pile method double measurement method:

It is suitable for any grounding place, multi-point or single-point grounding, and can be tested normally.

2. Strong anti-interference ability:

Self-generated high-frequency current, so as to filter the harmonic interference current such as 50Hz Hz in the mains, even in the 500kV substation environment, can be accurately measured.

3. Wide measurement range and high resolution

The range is from the resolution, and the following ground resistance can be accurately measured.

4 large jaw design:

The jaw diameter is 50mm, which meets the situation of using flat iron steel as the grounding lead, and the special jaw size can be customized according to customer requirements.

5 Large-capacity data storage:

Up to 200 sets of measurement data can be stored.

Double-clamp parameters. 1 Ground Resistance Measurement Range:

Double clamp method: ground pile method:

2 Error: Double clamp method: 2% 2 words.

Stake method: a word.

3 Minimum Resolution:

4 Jaw size: 50mm

5. Storage capacity: 200 sets of data.

6 Operating temperature: 0°C +50°C

7 Power supply: 8 x No. 5 NiMH rechargeable batteries or ordinary AA batteries.

The above is a double pincer type. Sanxin Power has various types of clamp ground resistance testers.

Clamp ground resistance tester is also known as clamp ground resistance tester, English name is clamp-on ground resistance tester or ground resistance tester. It is widely used in the measurement of grounding resistance of electric power, telecommunications, meteorology, oil fields, buildings and industrial electrical equipment. The clamp grounding resistance meter does not need to disconnect the grounding wire or auxiliary electrode when measuring the grounding system with loops, which is safe, fast and easy to use.

The clamp resistance meter can measure the ground fault that cannot be measured by the traditional method, and can be used in the occasion that the traditional method cannot be measured, because the clamp earth resistance meter measures the combined value of the resistance of the ground body and the resistance of the ground lead. Clamp earthing resistance meters are divided into long jaws and round jaws. The long jaws are particularly suitable for the occasion of flat steel grounding.