Cumulative deformation analysis of transformer winding under short-circuit fault using 3-D FEM

2015 ◽  
Author(s):  
Hai Jun Zhang ◽  
Shu Hong Wang ◽  
Song Wang
Keyword(s):  
Short Circuit ◽  
Deformation Analysis ◽  
Transformer Winding ◽  
Cumulative Deformation ◽  
Short Circuit Fault

Simulation of Power Transformer Windings Displacement Caused by Multiple Short-Circuit Forces

2012 ◽  
Vol 268-270 ◽  
pp. 1341-1344
Author(s):  
Hong Kui Li
Keyword(s):  
Power Transformer ◽  
Short Circuit ◽  
Deformation Analysis ◽  
Theoretical Formula ◽  
Cumulative Impact ◽  
Elastic Plastic ◽  
Transformer Winding ◽  
Short Circuits ◽  
The Stability ◽  
The Impact

This research studies the displacement on the windings of transformer due to multiple short-circuit forces. The power transformer winding deformations cumulative impact of multiple short-circuits are studied. the cumulative impact of multiple short-circuit deformation of laminated cylindrical shell with stiffeners model is established, the impact of accumulated deformation of multiple short-circuit of transformer winding is calculated with large deformation elastic-plastic theory , the text introduced by the theoretical formula for power transformer windings of the elastic-plastic deformation analysis of and winding to determine the stability have great significance, To verify the computation results, they are compared with those obtained using ANSYS software simulation.

Dynamic Deformation Analysis of Power Transformer Windings in Short-Circuit Fault by FEM

2014 ◽  
Vol 24 (3) ◽  
pp. 1-4 ◽  
Author(s):  
Haijun Zhang ◽  
Bin Yang ◽  
Weijie Xu ◽  
Shuhong Wang ◽  
Guolin Wang ◽  
...  
Keyword(s):  
Dynamic Deformation ◽  
Power Transformer ◽  
Short Circuit ◽  
Deformation Analysis ◽  
Short Circuit Fault

scholarly journals Interpretation of sweep frequency response analysis traces on inter-turn short circuit fault

2020 ◽  
Vol 11 (1) ◽  
pp. 309
Author(s):  
Nurul Farahwahida Md Yasid ◽  
A. A. Alawady ◽  
M. F. M. Yousof ◽  
S. Al-Ameri ◽  
M. S. Kamarudin
Keyword(s):  
Frequency Response ◽  
Short Circuit ◽  
Response Analysis ◽  
Frequency Response Analysis ◽  
Sweep Frequency ◽  
Statistical Indicator ◽  
Three Phase ◽  
Transformer Winding ◽  
Detection And Diagnosis ◽  
Short Circuit Fault

Sweep frequency response analysis (SFRA) is a reliable method for detection and diagnosis of faults in the active part of transformers. However, although SFRA is widely employed, the interpretation of SFRA signature is still a challenge and require experts to analyse them. This is due to lack of guideline and standard for SFRA signature interpretation and clarification. This paper presents the interpretation of SFRA signature by classification and quantification on inter-turn short circuit fault on the transformer winding. The short-circuited turns fault on HV winding phase “A” was practically simulated on three different units of three-phase transformers. The results of simulated fault are presented and discussed. A conclusion was drawn which provides the interpretation of the SFRA response due to inter-turn short circuit fault case by using a statistical indicator which is NCEPRI algorithm.

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