Grid Earth Resistance Earth Impedance Tester for Ground Network
China Grid Earth Resistance Earth Impedance Tester for Ground Network, Find details about China Ground Resistance Tester, Test Equipment from Grid Earth Resistance Earth Impedance Tester for Ground Network
Basic Info.
Model NO.
HFDW-4005A
Accuracy Grade
0.5
Load Way
Electronic Load
Loading Method
Dynamic Load
Display
Digital
Control
Computer Control
Weight
0-100Kg
Power Source
AC220V
Oil Cylinder Position
Under
Dispalay
Color Touch Screen
Trademark
Hengfeng
Transport Package
Wooden Case with Foam Inside, No Fumigation,Not in
Origin
China
Model NO.
HFDW-4005A
Accuracy Grade
0.5
Load Way
Electronic Load
Loading Method
Dynamic Load
Display
Digital
Control
Computer Control
Weight
0-100Kg
Power Source
AC220V
Oil Cylinder Position
Under
Dispalay
Color Touch Screen
Trademark
Hengfeng
Transport Package
Wooden Case with Foam Inside, No Fumigation,Not in
Origin
China
Product Desciption
Grid Earth Resistance Earth Impedance Tester for Ground Network
Product introduction
Grounding resistance tester can be used to measure the multipurpose model of substation ground network (4 Ω), water fire power plant, microwave station (10 Ω) and lightning rod (10 Ω). A new type frequency conversion AC power supply is adopted, and the measures of microcomputer processing control and signal processing are adopted. The anti interference problem in the test process is solved well, and the test exercises are simplified. The process improves the accuracy and accuracy of the test results, and greatly reduces the labor intensity and test cost of the experimenters.
This instrument is suitable for testing power frequency characteristic parameters and soil resistivity of various kinds of grounding devices such as power frequency grounding impedance. The instrument adopts the technology of different frequency anti-jamming, and can accurately measure the data of power frequency 50Hz under strong interference environment. The maximum 5A of the test current will not cause too high the potential of the grounding device at the time of test, and it also has very strong anti-interference ability, so it can be measured without power interruption.
0-50A output current can be customized
0-800V output voltage can be customized
Features
1. Double frequency conversion,strong anti-interference ability. The instrument adopts the method of different frequency measurement, and with modern software and hardware filtering technology, the instrument has high anti-interference performance, and the test data is stable and reliable.
2. The precision of measurement is high. The basic error is only 0.005 Ω, which can be used to measure the earth network with very small earth impedance.
3. Powerful function. It can measure current stake, voltage stake, grounding grid impedance, grounding resistance, grounding conduction, soil resistivity, step voltage, touch voltage, potential gradient and so on.
4. GPS included Angle function.
5. Vector shunt function.The instrument automatically subtracts the current that is transferred by the tower to calculate more accurate test results.
6. Built-in 1500 Ω imitate human body resistance, when testing step voltage ,users can get the real step voltage data and curve.
7. The operation is simple. All Chinese menu operation directly shows the measurement results.
8. Simple wiring ,no large current line is needed.
9. Built-in thermal printer, easy to print and save test results.
10.USB for easy copying test data.
11.Powerful PC software
12. It is safe and reliable. The instrument has the functions of earthing protection, current limiting and voltage limiting protection, sound and light alarm, and so on to ensure the safety of the test personnel and equipment.
1. How can I choose the suitable one?
Please tell us your detailed requirements by mail or online, we will recommend the suitable one as your request.
2. Does your price is competitive?
We have our own factory,we make sure to offer you the best quality with competitive price.
3. How can I pay?
We accept many payment term, such as T/T, Western Union…
4. When I receive it after pay?
Normal models can be delivered with 4-7days, please contact us to check transport time to your address.
5. How to deliver?
We can send by Express, by Sea and by Air.
7.What should I do if I do not know how to use?
We provide detailed operation instructions, operation videos, and engineer's online technical support.
8.What should I do if some parts broken?
We provide a 12-month warranty period and long-term maintenance services.
Product introduction
Grounding resistance tester can be used to measure the multipurpose model of substation ground network (4 Ω), water fire power plant, microwave station (10 Ω) and lightning rod (10 Ω). A new type frequency conversion AC power supply is adopted, and the measures of microcomputer processing control and signal processing are adopted. The anti interference problem in the test process is solved well, and the test exercises are simplified. The process improves the accuracy and accuracy of the test results, and greatly reduces the labor intensity and test cost of the experimenters.
This instrument is suitable for testing power frequency characteristic parameters and soil resistivity of various kinds of grounding devices such as power frequency grounding impedance. The instrument adopts the technology of different frequency anti-jamming, and can accurately measure the data of power frequency 50Hz under strong interference environment. The maximum 5A of the test current will not cause too high the potential of the grounding device at the time of test, and it also has very strong anti-interference ability, so it can be measured without power interruption.
0-50A output current can be customized
0-800V output voltage can be customized
Features
1. Double frequency conversion,strong anti-interference ability. The instrument adopts the method of different frequency measurement, and with modern software and hardware filtering technology, the instrument has high anti-interference performance, and the test data is stable and reliable.
2. The precision of measurement is high. The basic error is only 0.005 Ω, which can be used to measure the earth network with very small earth impedance.
3. Powerful function. It can measure current stake, voltage stake, grounding grid impedance, grounding resistance, grounding conduction, soil resistivity, step voltage, touch voltage, potential gradient and so on.
4. GPS included Angle function.
5. Vector shunt function.The instrument automatically subtracts the current that is transferred by the tower to calculate more accurate test results.
6. Built-in 1500 Ω imitate human body resistance, when testing step voltage ,users can get the real step voltage data and curve.
7. The operation is simple. All Chinese menu operation directly shows the measurement results.
8. Simple wiring ,no large current line is needed.
9. Built-in thermal printer, easy to print and save test results.
10.USB for easy copying test data.
11.Powerful PC software
12. It is safe and reliable. The instrument has the functions of earthing protection, current limiting and voltage limiting protection, sound and light alarm, and so on to ensure the safety of the test personnel and equipment.
Technical Specification
| Items | Specification |
| Impedance Measurement Range | 0Ω~2000Ω |
| Resolution | 0.001Ω |
| Measurement Error | ±(2%rdg+0.005Ω) |
| Anti-Power Frequency 50HZ Voltage Interference Ability | 10V |
| Test Current Wave | Sine Wave |
| Test Current Frequency | Auto 45Hz/55Hz double frequency, multiple frequency conversion groups are available for optional use |
| Maximum Current Output | 5A |
| Maximum Voltage Output | 400V |
| Test Cables requirement | Current wires copper core cross-sectional area≥2.0mm2; Voltage wires copper core cross-sectional area≥1.5mm2 |
| Power Supply | AC220V±10%,50/60Hz |
| Data Storage | 1000 groups |
| Computer Interface | RS232 and USB |
| Internal Printer | Yes |
| Working Temperature and Humidity | -10ºC~40ºC;80%RH below |
| Storage Temperature and Humidity | -20ºC~70ºC;70%rh below |
1. How can I choose the suitable one?
Please tell us your detailed requirements by mail or online, we will recommend the suitable one as your request.
2. Does your price is competitive?
We have our own factory,we make sure to offer you the best quality with competitive price.
3. How can I pay?
We accept many payment term, such as T/T, Western Union…
4. When I receive it after pay?
Normal models can be delivered with 4-7days, please contact us to check transport time to your address.
5. How to deliver?
We can send by Express, by Sea and by Air.
7.What should I do if I do not know how to use?
We provide detailed operation instructions, operation videos, and engineer's online technical support.
8.What should I do if some parts broken?
We provide a 12-month warranty period and long-term maintenance services.
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