Noise and Vibration Analysis of Dry-Type Power Transformer for Monitoring and Data Mining Applications

2019 ◽  
Author(s):  
C. Boonseng ◽  
R. Boonseng ◽  
K. Kularbphettong
Keyword(s):  
Data Mining ◽  
Vibration Analysis ◽  
Power Transformer ◽  
Noise And Vibration ◽  
Type Power

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.

The Use of Noise and Vibration Analysis on the Hydraulic Networks

1991 ◽  
Author(s):  
P. A. Drakatos ◽  
S. P. Drakatos
Keyword(s):  
Vibration Analysis ◽  
Noise And Vibration ◽  
Hydraulic Networks

Abstract This paper is concerned with Analysis of Vibration and Noise in a hydraulic networks. In the analysis it is tried to find the discrete frequencies. So, we are able to recognize the damages or to redesign the system. The most important effectiveness on the system ought to the flow in the phase of vorticity.

Optimizing Distributed-Contact Friction in Ring Dampers

2005 ◽  
Author(s):  
X. W. Tangpong ◽  
J. A. Wickert ◽  
A. Akay ◽  
Yuri Karpenko
Keyword(s):  
Energy Dissipation ◽  
Vibration Analysis ◽  
Excitation Frequency ◽  
Contact Friction ◽  
Friction Damping ◽  
End Effects ◽  
Noise And Vibration ◽  
Disk Brake ◽  
Brake Rotors ◽  
Base Structure

This paper describes the vibration analysis and optimization of a base structure and a beam-like attached damper sub-system that couple in vibration through distributed-contact friction damping. The objective is to tune the characteristics of the damper sub-system to maximize energy dissipation, and therefore to control vibration of the base structure. Applications of the concept to noise and vibration phenomena associated with automotive disk brake rotors are discussed. Per-cycle energy dissipation is examined as a function of damper preload for two classes of sub-systems: dampers that are split rings, and dampers that are continuous rings. End-effects and the manner in which energy dissipation is distributed spatially along the damper are also discussed. Of potential technological application, for a given excitation frequency, the damper sub-system’s design can be optimized to reduce vibration of the base structure.

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