Digital Ground Resistance Tester

Digital Ground Resistance Tester Rejects the traditional manual manual power generation method adopts advanced media and large scale integrated circuits, and uses DC / AC conversion techniques to combine the triple buttons and four-end button measurement modes with new ground resistors. .



The working principle is that the DC / AC converter in the machine changes the DC constant current, and the circuit is formed by the auxiliary ground electrode C and the measurement object E, which generates an AC voltage drop on the measuring object, and feeds the AC amplifier through assist grounding. The electrode P amplified, and then multiplied by multiplying by multiplying by a power switch to display the instrument header head, you can get three different number limits



Nearly the resistance tester is suitable for measuring the electrical resistance of low resistance of various departments such as various devices and power postal railway communication mining; Nearly the ground resistance tester also measures soil resistivity and ground voltage.



Technical parameters
Working Conditions Ambient temperature 0+45
Relative humidity 85%RH
Measurement range and constant

current value (effective value)

Resistance 020(10mA)2200(1mA)202000(0.1mA)
Voltage AC019.99V
Measurement accuracy and resolution Precision rowspan 0 0.23%1d

Product description

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

1 540

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

0.001 5

11

Exterior dimensions

370 295 W 225 H

12

Memory size

100 groups support U disk data storage

13

Weight

Main engine 13 Kg, ground pile 7 Kg

Product Introduction
The ground resistance measuring instrument is a new type of ground resistance measuring instrument which combines the three-end button and four-end button measuring methods by using advanced medium and large scale integrated circuit instead of the traditional manual manual power generation.

The working principle is that the DC/AC converter in the machine changes DC into low-frequency constant current of AC and the circuit is formed by auxiliary ground electrode C and measured object E which generates AC voltage drop on the measured object and is fed into AC amplifier for amplification through auxiliary ground electrode P and then sent to the meter head for display through detection. With the aid of multiplying power switch three different quantity limit can be obtained: 0 ~ 2 �© 0 ~ 20 �© 0 ~ 200 �©.

The earth resistance measuring instrument is suitable for measuring the earth resistance of various devices and the conductor resistance value of low resistance in electric power post and telecommunication railway communication mining and other departments. The table also measures soil resistivity and ground voltage.

Product nicknameï¼?digital ground resistance tester digital ground resistance tester ground resistance ground resistance meter ground resistance meter ground resistance meter ground resistance meter ground resistance meter ground pile ground resistance tester digital ground resistance meter portable ground resistance tester digital ground resistance meter

Product description

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

V100V

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

0.001 5

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.

Application:

ETCR2000 clamp ground resistance tester is a major technological breakthrough in traditional grounding resistance measurement. It is widely used in the grounding resistance measurement of electric power telecommunications meteorology oilfield construction and industrial and electrical equipment. When measuring circuit grounding system it is not necessary to disconnect the each connection wire and use auxiliary electrode it is safe and quick easy to use. Can measure the grounding fault which can not be measured by the traditional method because this instrument measure the integrated value of grounding resistance and ground lead resistance apply to the occasion that can not use the traditional method.


Features:

Apply to all kinds of ground lead.(round bar flat bar angle iron).

Non-contact measured grounding resistance safe fast.

Without using assistant ground rod. Without interrupting the grounding of the device under test.

With double protecting insulation.

With strong anti-interference ability and high accuracy.

Use 5# alkaline batteries convenient for users.

Application:

ETCR2000 clamp ground resistance tester is a major technological breakthrough in traditional grounding resistance measurement. It is widely used in the grounding resistance measurement of electric power telecommunications meteorology oilfield construction and industrial and electrical equipment. When measuring circuit grounding system it is not necessary to disconnect the each connection wire and use auxiliary electrode it is safe and quick easy to use. Can measure the grounding fault which can not be measured by the traditional method because this instrument measure the integrated value of grounding resistance and ground lead resistance apply to the occasion that can not use the traditional method.


Features:

Apply to all kinds of ground lead.(round bar flat bar angle iron).
Non-contact measured grounding resistance safe fast.
Without using the assistant ground rod. Without interrupting the grounding of the device under test.

With double protecting insulation.
With strong anti-interference ability and high accuracy.

Use 5# alkaline batteries convenient for users.

Application:

ETCR2000 clamp ground resistance tester is a major technological breakthrough in traditional grounding resistance measurement. It is widely used in the grounding resistance measurement of electric power telecommunications meteorology oilfield construction and industrial and electrical equipment. When measuring circuit grounding system it is not necessary to disconnect the each connection wire and use auxiliary electrode it is safe and quick easy to use. Can measure the grounding fault which can not be measured by the traditional method because this instrument measure the integrated value of grounding resistance and ground lead resistance apply to the occasion that can not use the traditional method.


Features:

Apply to all kinds of ground lead.(round bar flat bar angle iron).

Non-contact measured grounding resistance safe fast.
Without using assistant ground rod. Without interrupting the grounding of the device under test.
With double protecting insulation.

With strong anti-interference ability and high accuracy.

Use 5# alkaline batteries convenient for users.

Overview

Light digital relay protection tester characteristics 4 6 8 pairs of 100M Optical Fiber Communication Ethernet interface, can send and receive the sampling value of the IEC61850 9 1 2 frame format, Goose, IEEE 1588 packets more support 24 sets of SV packets 64 groups of Goose packets simultaneously 3 5 pairs of 2 10M fiber serial port, can send and receive IEC60044 7 8 FT3, national network expansion FT3, Xu Ji privately owned FT3 frame format sampling value 12 road simulation small signal output, provides testing of protection devices input for small signals



Technical parameter

Fiber Ethernet port
4 6 8 pairs 100 Mbits S, ST, Mode, 1310nm

IEC61850 9 1 2 Le, Goose, IEEE-1588

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