The Essence ES3001 multi-function four-wire grounding resistance tester has: 2, 3, 4 wire grounding resistance, soil resistivity, grounding voltage measurement. The following is an example of measuring the grounding resistance of a transformer. The Essence ES3001 multi-function four-wire grounding resistance tester has: 2, 3, 4 wire grounding resistance, soil resistivity, grounding voltage measurement. USB interface, data upload function, alarm function, data storage 300 groups, grounding resistance range: 0.00Ω～30.00KΩ, soil resistivity range: 0.00ΩM～9999KΩM Voltage range: 0～100V, test frequency: 128Hz, etc. The following is an example of measuring the grounding resistance of a transformer. Damascus Steel Pocket Knife,Damascus Steel Hunting Knife,Keychain Pocket Knife,Damascus Folding Knife YangJiang Junxiong Trading & Industry Company Co.,Ltd , https://www.cn-sundo.com
Transformer to be measured
Open the ES3001 multi-function four-wire grounding resistance tester instrument box and tool bag ready for wiring
Wire as shown below. Red, yellow, green and black, respectively, differ by 5 meters. This is a four-wire method to measure the grounding resistance.
Ground the rod and clamp the red and yellow test leads to the ground rod. Clamp the green and black test leads on the transformer ground lead
Wiring completed, ready to test
Press the red POWER button to boot
Press R to switch the ground resistance file
Press the yellow TEST button to start the test.
Test 10 seconds countdown
The grounding resistance is measured to be 3.17Ω, and the grounding is normal.
After the test is completed, press the POWER button to complete the work.
The above is the case of the SE3001 digital grounding resistance meter (multi-function type) to detect the transformer grounding resistance.
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Method for measuring grounding resistance of high voltage transformer