Static and Dynamic Evaluation of a Winding Deformation FBG Sensor for Power Transformer Applications

Melo, Aguinaldo Goes de; Benetti, Daniel D.; Lacerda, Luiz Alkimin de; Peres, Rodrigo Sanches; Floridia, Claudio; Silva, Artur de Araujo; Rosolem, J.B.

doi:10.3390/s19224877

Cited by 16 publications

(4 citation statements)

References 22 publications

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“…A Bragg wavelength shift of 0.133 pm/kPa was observed when the windings were subjected to strains from a pressure testing machine. Other sensor designs using FBG packaged in the transformerboard [94] and attached to the cantilever [95] were proposed but not yet tested.…”

Section: Winding Deformationmentioning

confidence: 99%

Fibre Bragg Grating Sensors for Condition Monitoring of High-Voltage Assets: A Review

Ramnarine,

Peesapati,

Djurović

2023

Energies

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The high-voltage (HV) assets in the existing power transmission network will experience increased electrical, thermal, environmental and mechanical stresses and, therefore, robust condition monitoring is critical for power system reliability planning. Fibre Bragg grating (FBG) sensors offer a promising technology in HV applications due to their immunity to electromagnetic interference and multiplexing capability. This paper reviews the current technology readiness levels of FBG sensors for condition monitoring of transformers, transmission lines, towers, overhead insulators and power cables, with the aim of stimulating further development and deployment of fibre-based HV asset management systems. Currently, there are several reported cases of FBG sensors used for condition monitoring of HV assets in the field, proving their feasibility for long-term use in the power grid. The review shows that FBG technology is versatile and can facilitate multi-parameter measurements, which will standardise the demodulation equipment and reduce challenges with integrating different sensing technologies.

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Section: Winding Deformationmentioning

confidence: 99%

Fibre Bragg Grating Sensors for Condition Monitoring of High-Voltage Assets: A Review

Ramnarine,

Peesapati,

Djurović

2023

Energies

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“…Recently, Aguinaldo et al [46] developed FBG pressure sensors to monitor the static and dynamic pressure in high voltage winding transformers in the advent of short-circuit and inrush current. The FBG deformations were placed at the top or at the base of the transformer windings ( Figure 6) [46]. These sensors were made with two materials, transformer board (TB) and polyether ether ketone (PEEK), and were stressed under usual short circuit winding pressure.…”

Section: Winding Deformation and Vibrationmentioning

confidence: 99%

Review of Fiber Optic Diagnostic Techniques for Power Transformers

N’cho

Fofana

2020

Energies

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Diagnostic and condition monitoring of power transformers are key actions to guarantee their safe operation. The subsequent benefits include reduced service interruptions and economic losses associated with their unavailability. Conventional test methods developed for the condition assessment of power transformers have certain limitations. To overcome such problems, fiber optic-based sensors for monitoring the condition of transformers have been developed. Flawlessly built-up fiber optic-based sensors provide online and offline assessment of various parameters like temperature, moisture, partial discharges, gas analyses, vibration, winding deformation, and oil levels, which are based on different sensing principles. In this paper a variety and assessment of different fiber optic-based diagnostic techniques for monitoring power transformers are discussed. It includes significant tutorial elements as well as some analyses.

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“…As a passive dielectric sensor element, Melo et al employed Fiber Bragg Grating (FBG) pressure sensors to deploy on the windings of the transformer for monitoring the static and dynamic pressure in highvoltage winding transformers during events such as short-circuits and inrush currents. Experimental results show that the static sensitivity of 0.911 pm/N was obtained by polyether ether ketone (PEEK) sensors within the range of 800 N-1500 N, which is approximately 4.47 higher than that of the transformer board (TB)-based counterparts [22]. Shi et al proposed a two-wire model of the winding structure by the principle of least action to describe the dynamic winding behaviors concisely.…”

Section: Introductionmentioning

confidence: 99%

Distributed Vibration Monitoring System for 10 kV-400 kVA 3D Wound Core Transformer under Progressive Short-Circuit Impulses

Tao,

Zhang,

Dai

et al. 2024

Sensors

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As large-scale, high-proportion, and efficient distribution transformers surge into the grids, anti-short circuit capability testing of transformer windings in efficient distribution seems necessary and prominent. To deeply explore the influence of progressively short-circuit shock impulses on the core winding deformation of efficient power transformers, a finite element theoretical model was built by referring to a three-phase three-winding 3D wound core transformer with a model of S20-MRL-400/10-NX2. The distributions of internal equivalent force and total deformation of the 3D wound core transformer along different paths under progressively short-circuit shock impulses varying from 60% to 120% were investigated. Results show that the equivalent stress and total deformation change rate reach their maximum as the short-circuit current increases from 60% to 80%, and the maximum and average variation rate for the equivalent stress reach 177.75% and 177.43%, while the maximum and average variation rate for the total deformation corresponds to 178.30% and 177.45%, respectively. Meanwhile, the maximum equivalent stress and maximum total deformation reach 29.81 MPa and 38.70 μm, respectively, as the applied short-circuit current increased to 120%. In light of the above observations, the optimization and deployment of wireless sensor nodes was suggested. Therefore, a distributed monitoring system was developed for acquiring the vibration status of the windings in a 3D wound core transformer, which is a beneficial supplement to the traditional short-circuit reactance detection methods for an efficient grid access spot-check of distribution transformers.

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Static and Dynamic Evaluation of a Winding Deformation FBG Sensor for Power Transformer Applications

Cited by 16 publications

References 22 publications

Fibre Bragg Grating Sensors for Condition Monitoring of High-Voltage Assets: A Review

Fibre Bragg Grating Sensors for Condition Monitoring of High-Voltage Assets: A Review

Review of Fiber Optic Diagnostic Techniques for Power Transformers

Distributed Vibration Monitoring System for 10 kV-400 kVA 3D Wound Core Transformer under Progressive Short-Circuit Impulses

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