Knowledge

My SFRA traces are not repeatable. What could be going wrong? Poor SFRA repeatability is almost always caused by measurement setup issues rather than

What type of instrument performs SFRA testing, and what features should an engineer look for? An SFRA test set is a specialized two-port network analy

How are SFRA curves read, and which part of the winding corresponds to each frequency range? An SFRA plot shows magnitude ratio (dB) vs. frequency on

What does the Sweep Frequency Response Analysis (SFRA) test measure, and when should it be performed? SFRA is a diagnostic technique that measures the

What is the tanδ test, and what do the readings indicate? The tanδ (dissipation factor/power factor) test measures dielectric losses in th

How do we measure winding resistance, and what does phase imbalance mean? The DC winding resistance test measures the ohmic resistance of each transfo

Q: What is the turns ratio test, and what problems can it reveal? A: The Turns Ratio Test (TTR) measures the ratio of the number of turns in the high-

Q: Why do we measure insulation resistance on a transformer, and what do the results mean? A: The insulation resistance (IR) test is a fundamental dia

What are the high-resistance faults in cable? High-resistance faults in cables refer to faults where the insulation layer of the cable is damaged, and

Cables, whether used for power transmission or communication, are the lifelines of modern infrastructure. Cables are susceptible to faults that can di

When assessing the health and reliability of electrical cables, particularly those used in power distribution and transmission, understanding insulati

The Overvoltage Withstand Test is a necessary part of quality control and maintenance for MV cables. By applying a controlled high voltage stress, it