The DC resistance tester makes a noise
The DC resistance tester will produce a continuous “buzzing” sound when it is running. If...
March 6, 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...
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...
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...
Preparation for measuring insulation resistance
When the measured object is connected to the power supply, it should be taken out...
Troubleshooting of High Voltage Test Transformer
Common faults of oil-immersed transformers in operation include windings, bushings, tap changers, iron cores, fuel...