HVWR-3A/ HVWR-5A Ground Network Earth Resistance Tester

Ⅰ Introduction

Currently in the power system, it is mainly used frequency large current three-pole measurements to test the ground network earth resistance. In order to prevent frequency interference generated by the power grid operation, to improve the accuracy of the measurement results, insulation preventive test code states: the test current of frequency large current method shall not be less than 30A. Thus, the test equipment is too heavy; the test process is complex; large work strength, long test time and many other issues.
Ground Network Earth Resistance Tester adopts the new variable frequency AC power, and take advantage of computer processing control and signal processing, to solve the interference problem of testing process, simplifying the test operation process, improve the precision and accuracy of test results, greatly reduce the labor intensity and testing costs.

Ⅱ Features

1. Good frequency equivalence. The measured current waveform is sine wave, the difference between frequency and power frequency is 5Hz, use 45Hz and 55Hz two frequency to test.

2. Strong anti-jamming ability, use different frequency method , assorted with modern hardware and software filtering techniques, make the device with strong anti-jamming ability, test results stable and reliable.

3. High precision, intrinsic error 0.005Ω, can test the ground network of small impedance.

4. Powerful: can test current pile, voltage pile, ground resistance, pace voltage, contact voltage.

5. Easy to operate, menu operated, directly display the test results.

6. Do not need high current wire.

Ⅲ Parameters

HVWR-3A Ground Network Earth Resistance Tester

HVWR-5A Ground Network Earth Resistance Tester

FAQ:

1. When can I get the price?

We usually quote within 6 hours work time after we get your inquiry. If you are very urgent to get price, please call us or tell us in your email so that we will regard your inquiry priority.

2. What about the delivery time for production?

Honestly, it depends on the order quantity and the product. Usually our leading time is within 7 working days after order confirmation.

3. What is your payment terms?

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

4. How much will the Shipping cost and time be?

This will depend on size of your goods and method of shipping (by sea/ by air/by Express) and your designated seaport or airport. We will be grateful if you can spare us some minutes to evaluate the cost based on the information of product.

5. Could you please tell me the Warranty Period of your product?

Our warranty period is one year free and lifelong maintenance. If the product is damaged (if not man-made damage), in the first year,we will send free parts for replacement. Over warranty, maintenance is paid service.

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

To be sure,our technical support is always available and quick response.
We are manufacturer with much on-site testing experience, thus we know how to deal with your problems. Moreover, our engineers can go to your country to support if needed.