What to pay attention to in DC resistance test
The voltage transformer is a common electrical equipment in the power system, and it is...
Technical Guide
How to wire the volt-ampere characteristic tester?
How to wire the transformer volt-ampere characteristic tester? For children’s shoes who are new to...
How to use transformer on-load switch tester
How to use the transformer on-load switch tester: 1. In the actual measurement, the measured...
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...
Calibration method of megohmmeter
Calibration method of megohmmeter: 1. Impedance bridge with 1% accuracy in the range of 103...
Preparation for measuring insulation resistance
When the measured object is connected to the power supply, it should be taken out...