A ground network conduction comprehensive tester
A comprehensive tester and ground grid technology, applied in the direction of continuity testing, instruments, measuring devices, etc., can solve problems such as unintuitiveness, burnt cable shielding layer, burnt ground net, etc., to achieve accurate testing and improve measurement accuracy , the effect of avoiding adverse effects
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[0038] see figure 1 , a comprehensive tester for ground grid continuity, comprising an AC current source, an ammeter, a voltmeter, four test terminals, a pair of current wires and a pair of voltage wires, the four test terminals include a test terminal 1, a test terminal 2, a test terminal Terminal 3 and test terminal 4, the test method is:
[0039]S1. Assuming that it is necessary to test the resistance between the two points of the ground grid A / B, the interference source between the two points of the ground grid A / B is equivalent to an equivalent circuit of a voltage source U and the internal resistance R0, and then the circuit is connected ;
[0040] S2. Connect the AC current source between the test terminal 1 and the ammeter, connect the other terminal of the ammeter to the test terminal 4, connect the voltmeter between the test terminal 2 and the test terminal 3, and then connect the test terminal 1 to the test terminal 4. Connect to point A of the ground grid through...
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