A transformer oil tester is a precision instrument specifically designed to test various parameters in transformer oil. Its core function is to analyze the performance of transformer oil using scientific methods, thereby assessing the insulation status and operational reliability of the transformer.
The test items typically performed by a transformer oil tester include trace water content, dielectric loss, breakdown voltage, acid value, and interfacial tension. Among these, trace water content is one of the key indicators reflecting the insulation performance of transformer oil, as moisture reduces the oil's insulation strength, accelerates oil aging, and can even cause equipment failure. Currently, most mainstream transformer oil trace water testers on the market use the Karl Fischer coulometric method. This method generates iodine through the electrolysis of water and calculates the water content based on the amount of electricity consumed. It offers advantages such as high detection accuracy, fast response speed, and ease of operation.
