Grounding resistance tester single point grounding
Method for measuring single-point grounding with a clamp-on ground resistance tester: A major breakthrough in...
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Cause Analysis of AC/DC Voltage Divider Failure
The AC and DC voltage divider is an instrument for field measurement, which can measure...
Use of shielded end of megohmmeter
When is the shielding end used? There are three terminals of the megohmmeter: high-voltage terminal,...
Field test of DC resistance teste
The DC resistance tester can reflect the short circuit between winding turns, the broken strand...
A problem in loop resistance tester testing
The loop resistance tester designed according to the conventional design principle found that there is...
Specific methods to eliminate electrical faults
Electricians must have professional knowledge and sufficient theoretical principles as the basis, so that faults...
Judge the abnormality of the voltage transformer
Judgment of common abnormalities of voltage transformer of DC resistance tester: (1) Three-phase voltage indication...
Debug the circuit breaker and judge the fault
The high-voltage switch time characteristic tester debugs the high-voltage circuit breaker and judges the fault:...
Instruments for measuring insulation resistance
Due to its extended measurement capabilities, modern household megohmmeters not only have high noise immunity,...
Two methods of measuring transformer windings
The purpose of the DC resistance tester to measure the DC winding resistance of the...