Relay protection and overcurrent protection
Relay protection is a very important test in power system testing. It is an important...
February 2026
sion932 Regulations for high-voltage test transformers
Regulations to be followed when high-voltage test transformers undergo high-voltage tests 1. The high-pressure test...
Principle Analysis of DC Resistance Tester
Insulation resistance refers to the resistance between two parts of conductors separated by insulating materials,...
Field test of zinc oxide arrester tester
As a special instrument for professionally testing the electrical performance of zinc oxide arresters, zinc...
Insulation resistance tester live detection
Introduction to the application of insulation resistance tester in live detection in the power industry...
High voltage test transformer operation method
High voltage test transformer operation method 1. The tested product should be cleaned first and...
How to use the loop resistance tester?
The loop resistance tester performs a series of characteristic tests on power operating equipment in...
High voltage test transformer problem
Find the right solution when the following problems occur in the high-voltage test transformer The...
Calibration steps of loop resistance tester
In order to ensure the accuracy of the measurement of the loop resistance tester, we...
User Guide for Loop Resistance Tester
Normally, under normal working conditions, the closer the measurement value of loop resistance or contact...