Irregular operation of relay protection tester
How to solve the irregular operation of the relay protection tester: Before the relay protection...
2026
hvhipot Partial discharge test of oil-immersed transformer
Oil-immersed power transformers mainly use oil-paper barrier insulation, which is composed of electrical paper layers...
Dry-type and oil-immersed transformers
In terms of capacity, large-capacity oil becomes more than dry. Dry transformers must be used...
Common faults of loop resistance tester?
The loop resistance tester is designed with a combination of high-frequency switching power supply technology...
How to maintain the on-load tap changer tester?
Overhaul content and requirements of on-load tap-changer tester (1) When the on-load tap-changer tester is...
The principle of high voltage test transformer
High voltage test transformer function: ① Generate power frequency high voltage to act on the...
High voltage test equipment operation
Operators of high-voltage test equipment should have professional knowledge of high-voltage test, be familiar with...
Working principle of partial discharge tester
The partial discharge tester has a wide range of applications, high detection sensitivity and accuracy....
Several factors of partial discharge
Partial discharge is mainly used to check whether large-scale electrical equipment has local defects in...
How to operate the zinc oxide arrester tester?
The zinc oxide arrester tester is a relatively advanced equipment, which has more functions. When...