Frequency response signature analysis for winding mechanical fault detection of power transformer using sensitivity method

2019 ◽  
Vol 61 (4) ◽  
pp. 593-603
Author(s):  
Haijun Zhang ◽  
Hua Zhang ◽  
Qiang Ma ◽  
Haifeng Han ◽  
Shuhong Wang
Keyword(s):  
Fault Detection ◽  
Frequency Response ◽  
Power Transformer ◽  
Signature Analysis ◽  
Sensitivity Method

Optical Frequency-Response Analysis for Power Transformer

2020 ◽  
pp. 1-1
Author(s):  
Guo-Ming Ma ◽  
Yunpeng Liu ◽  
Yabo Li ◽  
Xiaozhou Fan ◽  
Ce Xu ◽  
...  
Keyword(s):  
Frequency Response ◽  
Power Transformer ◽  
Response Analysis ◽  
Optical Frequency ◽  
Frequency Response Analysis

scholarly journals SFRA, Detect of Winding Deformation in Power Transformer

2020 ◽  
Vol 9 (5) ◽  
pp. 1392-1395
Keyword(s):  
Frequency Response ◽  
Power Transformer ◽  
Response Analysis ◽  
Frequency Response Analysis ◽  
Sweep Frequency ◽  
Cause Analysis ◽  
Root Cause ◽  
Input And Output ◽  
Voltage Signal ◽  
Hidden Fault

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. These two signals give the specified response of the ratio is named the transfer function of the transformer from which both the magnitude and phase are often obtained. Frequency response is change as measured by SFRA techniques may indicate a phase transition inside the transformer, then causes of fault identified and investigation is required for root cause analysis.

Sign in / Sign up

Export Citation Format

Share Document