A vibration analysis of cable-type winding for distribution power transformer by using a semi-analytic method

2007 ◽  
Author(s):  
Jung Woo Ha ◽  
Sung-Hyun Woo ◽  
Pan Seok Shin ◽  
Jinhee Lee
Keyword(s):  
Vibration Analysis ◽  
Power Transformer ◽  
Analytic Method

Power Transformer Fault Diagnosis Based on Vibration Correlation Analysis

2014 ◽  
Author(s):  
Kaixing Hong ◽  
Hai Huang
Keyword(s):  
Fault Diagnosis ◽  
Correlation Analysis ◽  
Fundamental Frequency ◽  
Vibration Analysis ◽  
Laboratory Tests ◽  
Power Transformer ◽  
Assessment Model ◽  
Vibration Method ◽  
Proposed Model ◽  
Transformer Fault

In this paper, a condition assessment model using vibration method is presented to diagnose winding structure conditions. The principle of the model is based on the vibration correlation. In the model, the fundamental frequency vibration analysis is used to separate the winding vibration from the tank vibration. Then, a health parameter is proposed through the vibration correlation analysis. During the laboratory tests, the model is validated on a test transformer, and manmade deformations are provoked in a special winding to compare the vibrations under different conditions. The results show that the proposed model has the ability to assess winding conditions.

scholarly journals Experimental Research on Power Transformer Vibration Distribution under Different Winding Defect Conditions

Electronics ◽  
2019 ◽  
Vol 8 (8) ◽  
pp. 842
Author(s):  
Yiwei Hu ◽  
Jing Zheng ◽  
Hai Huang
Keyword(s):  
Spatial Distribution ◽  
Vibration Analysis ◽  
Power Transformer ◽  
Open Circuit ◽  
Distribution Characteristics ◽  
Spatial Distribution Characteristics ◽  
Three Phase ◽  
Transformer Winding ◽  
Faults Diagnosis ◽  
Open Circuit Condition

Vibration analysis is one of the important tools for the transformer winding faults diagnosis. Previous researchers have proved that the vibration spatial distribution of the winding is significantly influenced by the winding defects for the open circuit condition. In order to study the effects of the loading current on the winding vibrations under different mechanical conditions, experiments were designed and operated on a three-phase transformer winding to analyze the winding vibration distribution under different winding defect cases. Further, to study to what extent the mechanical defects and the loading current influence characteristics of the vibration distribution on the tank, the tank vibration distribution under various winding defects and different loading currents were also measured and discussed. In addition, the possibility of detection of transformer winding faults based on tank vibration spatial distribution characteristics was also discussed.

Vibration analysis of power transformer cores

2010 ◽  
Vol 24 (8) ◽  
pp. 763-768 ◽  
Author(s):  
Jing Zheng ◽  
Jingdi Wang ◽  
Jie Guo ◽  
Jianping Zhou
Keyword(s):  
Vibration Analysis ◽  
Power Transformer
Sign in / Sign up

Export Citation Format

Share Document