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HM3001 Ground Network Earth Resistance Tester(3-5A)

The instrument adopts different frequency anti-jamming technology, can under the condition of strong interference and accurate measured data under the frequency of 50Hz.

Good power frequency equivalence, test current waveform is sine wave, it has only 5Hz with the power frequency difference, using 45Hz and 55Hz two kinds of frequency to carry on the measurement.

Summary

At present, in the power system, the grounding resistance test of large grounding grids is mainly measured by high frequency current three pole method. In order to prevent the power frequency interference and improve the accuracy of the measurement results, the insulation preventive test regulation stipulates that the test current of the high frequency current method shall not be less than 30 amperes. As a result, there are many problems such as heavy test equipment, complicated test process, great work intensity of test personnel and long test time.

HM3001 large scale grid ground resistance tester tester, test of substation grounding grid (4), fire power plant, microwave station (10), the lightning rod (10) with multiple models, using a new type of variable frequency AC power supply, and adopts the microcomputer control and signal processing and other measures, is a very good solution anti interference problem in the process of testing, simplifies the test operation process, improves the precision and accuracy of the test results, and greatly reduce the labor intensity and the cost of test and test personnel. 

The instrument is suitable for testing the power frequency characteristic parameters of various grounding devices, such as power frequency grounding resistance, and the soil resistivity. The instrument adopts different frequency anti-jamming technology, can under the condition of strong interference and accurate measured data under the frequency of 50Hz. The maximum test current is 5A, the potential of the grounding device is not too high when tested, and it also has strong anti-interference ability, so it can be measured under the condition of no power failure.

Advantage

1.Good power frequency equivalence, test current waveform is sine wave, it has only 5Hz with the power frequency difference, using 45Hz and 55Hz two kinds of frequency to carry on the measurement.

2.Strong anti-interference ability. The instrument adopts the different frequency measurement method, combined with modern hardware and software filtering technology, the instrument has high anti-interference performance, stable and reliable test data.

3.High accuracy, basic error is only 0.005 ohms, which can be used to measure large ground grids with little grounding impedance.

4.Powerful funcation. It can measure the current pile, the grounding resistance of the voltage pile, the grounding resistance of the grounding network, the on resistance, and the soil resistivity.

5. Simple operation. All Chinese/english menu type operation, directly display measurement results.

6.Simple wiring,strong current line is unnecessary.

Technical parameter

1. Impedance measurement range: 0~5000Ω

2. Resolution: 0.001MΩ

3. Measurement error: + (readings x2%+0.005Ω)

4. Test current waveform: sine wave

5. Test current frequency: 45, 50, 55, 60, 65Hz single frequency

45/55Hz, 55/65Hz, 47.5/52.5Hz automatic dual frequency conversion

6. Output current: 1, 2, 3, 4, 5A

7. Maximum output voltage: 450V

8. Measuring line requirements: current line copper core cross-sectional area  ≥1.5mm2

Voltage line copper core cross-sectional area ≥1.0mm2

9. Power supply: AC180 to 270V, 50/60Hz

10. Size: 355 * 335 * 340mm

11. Weight: 18kg

 


F A Q

 

1. Are you manufacture ?

Yeah, we are manufacturer professional in design and produce high voltage test equipment with nearly 20 years experience .

 

2. When can I get the price ?

We usually quote within 6 hours after get your inquiry . If you are very urgent to get price, please feel free to contact us by Wechat&Whatsapp +86-13720145441 or send us by email info@cablehipot.com, so that we will regard your inquiry priority .

 

3. Do you supply OEM?

 Of course, we supply OEM.

 

4. What about leading time for production ?

Honestly , it depends on order quantity and the product . Usually lead time is within 7 working days after deposit .

 

5. What is your terms of delivery ?

We accept EXW, FOB, CFR, CIF, DDU, etc . You can choose the one which the most convenient and cost effective for you .

 

6. What’s your payment terms :

TT payment, L/C at sight, Paypal, Western union, etc.

 

7. How much is the shipping cost and time ?

This is depend on the size and weight of your product, and the method of shipping ( by sea/ by ari/ by Express) and your designated port . Kindly afford us above information to check shipping cost and time for you .

 

8. What’s the warranty period ?

Our warranty period is one year free and lifelong maintenance .

If produce damage within one year ( not man-made damage ), we will send you spare parts for replacement .  After one year, maintenance is paid service .


9. What kind of Certificate you can provide ?

We can provide CE mark, ISO9001 quality certificate the third part Calibration Certificate (CNAS), factory test report .

 

10. Do you have Technical Backup to all customers from different countries ?

Surely, we have rich experience engineer to afford professional technical support and quick response to your technical questions .

We are manufacture with rich on site testing experience and understand how to deal with your problems . And our engineer can visit your company to afford technical support face to face if necessary .

Technical index

1. Impedance measurement range: 0~5000Ω

2. Resolution: 0.001MΩ

3. Measurement error: + (readings x2%+0.005Ω)

4. Test current waveform: sine wave

5. Test current frequency: 45, 50, 55, 60, 65Hz single frequency

45/55Hz, 55/65Hz, 47.5/52.5Hz automatic dual frequency conversion

6. Output current: 1, 2, 3, 4, 5A

7. Maximum output voltage: 450V

8. Measuring line requirements: current line copper core cross-sectional area  ≥1.5mm2

Voltage line copper core cross-sectional area ≥1.0mm2

9. Power supply: AC180 to 270V, 50/60Hz

10. Size: 355 * 335 * 340mm

11. Weight: 18kg

Factory test and shippment

We will do factory test for every product before devilering, to ensure qualified of the product.

We will pack the product carefully and choose suitbale shippment for client,to ensure the safe arrival.


Installation and commissioning

we provide installation and commissioning assistance to get you up and running. Domestically within China or internationally, we will be there to support you. During the installation, integration and operation of a new test system, a variety of special services are involved. If it ’ s necessary, we can offer oversea commissioning service for our clients.


Service and support

In any fault case of our product, we will arrange engineer to deal with your problem within 24hours



Service guarantee

Contact purchase

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