Classification of voltage withstand test
1. DC withstand voltage test The DC withstand voltage test has a high voltage and...
January 2026
sion932 Measurement principle of clamp resistance meter
1、 Measurement principle of clamp resistance meter, grounding resistance tester Clamp on resistance meter is...
Insulation resistance of high-voltage equipment
Insulation performance tests must be conducted on electrical equipment, especially high-voltage electrical equipment, during commissioning...
Power-Frequency Withstand Voltage Test
Power frequency high voltage, test transformer, control box 1. When conducting high-voltage AC/DC tests,...
Testing methods and selection of insulators
Zero value insulator, insulator distribution voltage measurement table, insulator tester Insulators installed on transmission...
On site zinc oxide lightning arrester
Lightning arrester is one of the important electrical equipment in the power system, which plays...
Basic knowledge of transformers
Transformers are almost used in all electronic products, and their principle is simple. However, the...
Test items for power transformers
Test equipment, high-voltage megohmmeter DC resistance rapid tester, fully automatic ratio group tester, transformer...
How to phase distribution transformers on site?
Checking the phase of distribution transformers is a routine task in the power system. The...
Misconceptions in the operation of a megohmmeter
Abstract: Regarding the insulation value of 10kV transformers measured by shaking, there are three misconceptions...