Frequency response analysis is primarily used to check the integrity of which equipment?

Frequency response analysis is a valuable diagnostic tool primarily used to assess the integrity of power transformers. The technique measures how the transformer responds to various frequencies of input signals, allowing technicians to detect changes in the transformer's physical characteristics or internal structure, such as winding defects, core issues, or insulation deterioration.

Power transformers are complex devices that can experience shifts in their frequency response due to aging, electrical stress, or mechanical damage. By analyzing the frequency response, professionals can identify potential faults before they lead to failures, ensuring the reliable operation of the transformer within the electrical system.

While frequency response analysis can be applied to other equipment, such as electric generators and high-voltage cables, its most effective and standard application is with power transformers, making it a critical tool for maintaining the health and performance of these essential devices.