Large Ground Grid Resistance Tester High Accuracy Variable Frequency Grounding Resistance Test Equipment for Substation

Product Description

Product Description

This specialized instrument is used for measuring the grounding resistance of ground grids and the grounding continuity between grounding points.
It adopts frequency conversion anti-interference technology,does not require large current measurements,and can obtain accurate 50Hz data even in environments with strong interference,such as substations.Measurement results are displayed on a large LCD screen and can be printed outusing the built-in micro printer.The instrument can simultaneously measure grounding impedance and grounding resistance,providing a more accurate reflection of the actual characteristics of the ground grid.

Product Features

1. Good power frequency equivalence

2. Strong anti-interference capability

3. High precision.The basic error is only 0.005Ω

4. Can measure the grounding resistance of current piles,voltage piles,ground grids,continuity resistance and resistance,and soil resistivity.When used with the dedicated frequency selective voltmeter,it can measure step voltage,transfer potential,and contact voltage with higher anti-interference capability and accuracy

5. Full English menu operation,directly displaying measurement results.

6.  Low wiring labor:No need for large current lines.

Detailed Photos

Technical Parameters

I. Main Unit Technical Parameters:
1. Impedance Measurement Range:0~50000 Resolution:0.001mΩ
2. Measurement error:±(reading×2%+0.005Ω)
3. Test Current Waveform:Sine wave
4. Test Current Frequency:45,50,55,60,65Hz
5. Single frequency:45/55Hz,55/65Hz,47.5/52.5Hz automatic dual frequency
6. Output Current:1,2,3,4,5A;Maximum Output Voltage:450V
7. Measurement Line Requirements:Current line copper core cross-sectional area≥1.5mm²,Voltage line copper core cross-sectional area≥1.0mm²
8. Power Supply:AC180~270V,.50/60Hz

II. Frequency Selective Voltmeter Technical Parameters:
The frequency selective voltmeter can only be used with the large ground grid earth resistance tester
for anti-interference measurements of ground surface potential gradient,step voltage,and contact
voltage difference.

III. Main Technical Parameters:
Measurement Range:0-600V Accuracy:±Reading*1%+0.1mA Maximum Resolution: 0.001mV
Input Impedance:>500kΩ Human Body Simulation Resistance:1500Ω±5%
Measurement Frequency:Corresponds to the ground grid earth resistance tester,interference
suppression ratio:≥80dB
Working Time:about 8 hours Charging Time:about 3 hours
Power supply:220V±10%,50Hz/60Hz
Weight:18kg

Product Dimension

Company Profile

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FAQ

Q1:Is your company a sales or a manufacturer? 
We are an integrated trade and manufacturing company with our own factory. 

Q2:If we need to customize our own brand or if there are special requirements for the built-in software of the machine, can it be customized?
Yes, we accept OEM/ODM/OBM and can customize the built-in software of the product according to the customer's special requirements.

Q3:What is the usual lead time? How long can we receive the order after placing it?
In normal circumstances, products in stock can be received within 5 to 7 days via the fastest international express. Other situations may vary depending on the quantity of products ordered, whether there are special customization requirements, and the delivery time chosen.

Q4:How can we ensure that the product will not be damaged during transportation, considering the large size of the product?
We have professional internal and external packaging to ensure the safety and stability of the products during transportation. For fragile or other special parts, we will include an extra set to ensure that the customer can use the product immediately upon receipt.

Q5:How do you handle after-sales service? What if there is a quality problem with the product or if the customer does not know how to operate it? 
For quality issues that are not caused by human error, we provide a one-year warranty from the time the product is delivered, and lifetime technical support. Other after-sales issues will be addressed by our professional technical staff within 24 hours. The product comes with a user manual and an operation video.