Electrical insulation failure
The insulation resistance tester is suitable for insulation testing in the maintenance, repair, testing and...
February 2026
hvhipot Digital high voltage megohmmeter repair
Digital high-voltage megohmmeter repair and maintenance 1. Choose a megohmmeter that meets the voltage level....
Resistance measured by DC resistance tester
The DC resistance tester has high measurement accuracy and simple operation. It is suitable for...
Why do I need to perform a megohmmeter test?
When the leakage current exceeds the design limit that the cable cannot withstand, the cable...
Test of zinc oxide arrester characteristic tester
Preparation work and use attention of zinc oxide arrester tester before test 1. First, check...
Preventive test of high voltage test transformer
The preventive test of high-voltage test transformers can be carried out through the following aspects:...
Common faults of grounding resistance tester
Troubleshooting common faults of grounding resistance tester Common fault 1: Check that the battery voltage...
Zinc oxide arrester tester test
The zinc oxide arrester tester is also called the zinc oxide arrester live tester and...
Loop resistance tester wiring
The wiring method of the loop resistance tester: the wiring of the loop resistance tester...
Instruction Manual of Loop Resistance Tester
The loop resistance tester is suitable for testing the contact resistance value of the main...