Ground Grid Earth Resistance Tester - Yangzhou DARUI
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Ground Grid Earth Resistance Tester, adopts a new type of variable frequency AC power supply, and uses measures such as microcomputer processing control and signal processing, which effectively solves the anti-interference problem during the test process, simplifies the test operation process, improves the accuracy and precision of test results, and greatly reduces the labor intensity of test personnel and test costs.
The testing of the grounding resistance of the ground grid currently mainly uses the power frequency large current three-pole method. In order to prevent power frequency interference during grid operation and improve the accuracy of measurement results, the insulation preventive test regulations stipulate that the test current of the power frequency large current method shall not be less than 30A. As a result, there have been many problems such as bulky test equipment, complex test procedures, high labor intensity for test personnel, and long test time.
