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What is the difference between high-freq

Both high-frequency DC high-voltage generators and ultra-low-frequency high-voltage generators are i...

2023-09-28

How should we choose DC test or AC test

Cable fault testing is an important power detection technology that can detect the location and type...

2023-09-27

How to use cable identification devices

Cable identifier is an instrument used to identify cables. In the field of environmental protection,...

2023-09-26

Precautions for using microcomputer rel

Precautions for using microcomputer relay protection tester1. Microcomputer relay protection tester ...

2023-09-25

Several Reasons and Preventive Measures

Several reasons for power transformer burnout:1. Overvoltage① Suffer from lightning strikesThe high ...

2023-09-22
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