GI6405  Grounding Connection Device Parameters Tester

INTRODUCTION

At present, in the power system, the ground resistance of the earth net mainly uses the method of power frequency with high current. In order to prevent the frequency interference generated by the operation of the power grid and improve the accuracy of the test results, the test procedure stipulates that the test current of the power-frequency-high current method shall not be less than 30A. Therefore, such test equipment is cumbersome, the test process is complex, the test time is long and many other problems.
HANDY Grounding Connection Device Parameter Tester, using a new type of variable frequency AC power supply, abandoned the traditional frequency transformer design, greatly reduced the weight of the instrument. While using digital signal processing technology, avoiding 50Hz frequency interference, so it can be measured without power failure, improve the accuracy of the test results, The complexity of the test process is greatly reduced.
This instrument is suitable for testing the ground resistance of various types of grounding devices, touch potential, step potential, voltage gradient and soil resistivity. A variety of models, which can be measured in the substation ground grid (4Ω), hydrothermal power plant, microwave station (10Ω), lightning rod (10Ω) can be measured.
 

FEATURES

1. Accurately measure parameters such as ground impedance, ground resistance, ground impedance, voltage gradient, touch potential, step potential, soil resistivity, etc. to meet the measurement of conventional ground-ground network parameters.
2. The test power supply provides an interfrequency power supply close to the frequency, easily separating the frequency and the interference of the clutter, and effectively realizing the measurement of small signals.
3. The test accuracy is high and can be used to measure the ground mesh with very little ground impedance.
4. The design of the all-electronic non-working frequency transformer is small and light in size, which is easy to carry.
5. The instrument automatically completes the power boost control, data measurement calculation, test time is short, the workload is small.
6. Current and voltage waveforms can be saved and test data analyzed by the upper computer software.
7. The LCD screen can be clearly displayed both indoor and outdoor to display the operating interface and test data.
8. The built-in large-capacity memory can hold 1000 sets of data and is not lost when power off.
9. High-speed thermal printer prints test data.
10. Upgrade the instrument software with a USB flash drive.

TECHNICAL

1. Power supply:Three phase 380V±10%，47～63Hz，Power:30KVA
2. Output voltage：0～400V（RMS）
3. Output current：0～5A（RMS）
4. Testing time：30s
5. Testing power frequency：44～56Hz Multi-frequency measure
6. Measurement range：0-100Ω，Resolution：1mΩ
7. Measurement accuracy：±(1%±5mΩ)
8. Anti-jamming capability: The ratio of instrument output signal to interference signal can be completed steadily and accurately at 1:50.
9. Dimension: 427mm×357mm×193mm 
10. Working enviroment：T:-20～50°；H≤90%RH
11. Wight:10Kg
 
 

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