Results 11 to 20 of about 433 (255)
Transformer Winding Deformation Detection Based on BOTDR and ROTDR [PDF]
Sensors, 2020 In order to realize distributed measurement of transformer winding temperature and deformation, a transformer winding modification scheme with a built-in distributed optical fiber was designed.
Yunpeng Liu, Xiaozhou Fan
exaly +7 more sources
Research on On-Line Detection Method of Transformer Winding Deformation Based on VFTO [PDF]
Sensors, 2021 At present, the detection of transformer winding deformation faults is carried out in an offline state, which requires the transformer to cooperate with the implementation of planned power outages, or it takes place after the sudden failure of the ...
Yanyun Wang +7 more
doaj +5 more sources
Analysis of Transformer Winding Deformation and Its Locations With High Probability of Occurrence
IEEE Access, 2023 Power transformer, as a crucial equipment for power transmission, frequently suffers winding deformation defects, owing to the impact of huge external short-circuit current in actual operation.
Quan Zhou, Xi Ouyang, Hujun Shang
exaly +5 more sources
Energy Reports, 2023 Transformer winding deformation threatens the power system’s safe and stable operation, and early detection of transformer winding deformation can reduce economic losses.
Yan Zhou, Zhigang Liao
exaly +3 more sources
Research on Online Detection Method of Transformer Winding Deformation Based on VFTO Characteristics
Energies, 2023 At present, most of the winding fault detections of transformers use offline methods, which require the entire line to be powered off or after the transformer has been shut down due to a serious fault, and they cannot detect the running status of the ...
Wenbin Zhang
exaly +3 more sources
Methodology to locate and quantify radial winding deformation in power transformers
High Voltage, 2017 Frequency response analysis (FRA) is a tool that can be used to detect changes within the structural geometry of a transformer. One application of FRA is to detect winding displacement after the transformer experiences an overcurrent event.
James S Welsh, Steven D Mitchell
exaly +3 more sources
Distributed Vibration Monitoring System for 10 kV-400 kVA 3D Wound Core Transformer under Progressive Short-Circuit Impulses [PDF]
SensorsAs 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.
Jiagui Tao +4 more
doaj +2 more sources
IEEE Access, 2022 Winding deformation caused by short-circuit is one of the main causes of transformer damage. Even if the transformer successfully withstands one short-circuit impact, accumulative effect of multiple short-circuit impacts will cause sudden permanent ...
Shuguo Gao +5 more
doaj +1 more source
Energies, 2020 Frequency response analysis is widely used to diagnose transformer winding deformation faults due to its high sensitivity, strong anti-interference capability, and equipment portability, but the results of frequency response analysis can be affected by ...
Qian Wu +7 more
doaj +1 more source
SFRA, Detect of Winding Deformation in Power Transformer
International Journal of Innovative Technology and Exploring Engineering, 2020 The sweep frequency response analysis is extensively used technique for detect hidden fault and condition monitoring of power transformer. The operation is administered by supply a coffee voltage signal of varying frequencies to the transformer windings and measuring both the input and output signals.
Dr. B. Gopinath* +4 more
openaire +1 more source