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The detection of acoustic partial discharge signals produced in power transformers is reported. Detection is based on optic phase changes in an intrinsic Mach-Zehnder fiber optic interferometric… Continue Reading
The main problem in power transformers is the degradation of the isolation, and partial discharges are a major contribution to this shortcoming. Partial discharges inside medium-and high-power… Continue Reading
The main problem in power transformers is the degradation of the isolation, and partial discharges are a major contribution to this shortcoming. Partial discharges inside medium and high power… Continue Reading
Optical fiber technology is able to answer the demanded development of EMI immune and harsh withstanding sensors for the Electric Power Industry, particularly applied to Power Transformers, and… Continue Reading
Partial Discharges are one of the major sources and symptoms of the deterioration of the dielectric material in power transformers. Such discharges are shown to emit weak acoustic signals in a wide… Continue Reading
In this work we present the development and characterization of highly-sensitive fibre optic coils hydrophone for the detection of ultrasonic signals. In particular, fibre coils are a good… Continue Reading