The DC resistance tester makes a noise
The DC resistance tester will produce a continuous “buzzing” sound when it is running. If...
March 2026
Solution to the problem of DC resistance tester
The DC resistance tester is an ideal device for the DC resistance of lateral transformer...
What to pay attention to in DC resistance test
The voltage transformer is a common electrical equipment in the power system, and it is...
Precautions for megohmmeter
Note for megohmmeter: 1. Before measurement, perform an open circuit and short circuit test on...
The role of different ground resistance testers
The grounding resistance tester is based on Ohm’s theorem and adopts the fHV Hipot Electric...
Transformer 5 times impact test
The reasons why a new transformer or a transformer after an overhaul should undergo an...
Earthing resistance measurement of earth grid
Large-scale grounding grid grounding resistance tester is suitable for testing the power frequency ground impedance,...
Disadvantages of loop resistance tester in testing
The loop resistance tester designed according to the conventional design principle found that there is...
How to solve the failure of loop resistance tester
Common faults and solutions of loop resistance testers: 1. Failure phenomenon one The test current...
Resistance, current, voltage relationship
The relationship between resistance, current and voltage, then we should understand what Ohm’s law is....