Berfin Anşin

E-mail

berfin@metu.edu.tr

Department

Department of Basic English

Distinguishing polymeric insulators PD sources through RF PD measurement Abedini-Livari, Ali; Anşin, Berfin; Vakilian, Mehdi (2020-11-01) A better performance and consequently the widespread use of polymeric insulators in different parts of the power grid can increase their role in the grid reliability. The accumulation of contamination and housing-erosion a...
A Hybrid Transformer PD Monitoring Method Using Simultaneous IEC60270 and RF Data Anşin, Berfin; Phung, B. Toan; Blackburn, Trevor R. (2019-08-01) Transformers are the key component in power system transmission and distribution networks. Condition-based maintenance will increase their expected life, and online monitoring is essential to ensure operation reliability. ...
Online monitoring of transformer through stream clustering of partial discharge signals Anşin, Berfin; Phung, B. Toan; Blackburn, Trevor (2019-05-01) The general method for identifying the partial discharge type in a power transformer is based on their fingerprints in the form of phase-resolved discharge patterns. In the case of multiple defects, traditional clustering ...
Partial Discharges Pattern Recognition of Transformer Defect Model by LBP & HOG Features Anşin, Berfin; Phung, B. Toan; Blackburn, Trevor R. (2019-04-01) Partial discharge (PD) measurement and identification have great importance to condition monitoring of power transformers. In this paper, a new method for recognition of single and multi-source of PD based on extraction of...
Transformer components impact on compatibility of measured PDs: comparison of IEC60270 and RF methods Anşin, Berfin; Toan Phung, B.; Blackburn, Trevor (2019-03-01) Power transformer partial discharge signal measurement using Radio Frequency method has advantages over IEC 60270 'apparent charge' measurement method for online monitoring due to greater immunity against external interfer...
Line Composite Insulators Condition Monitoring through Partial Discharge Measurement Abedini-Livari, Ali; Eshaghi-Maskouni, Mandi; Vakilian, Mehdi; Anşin, Berfin (2019-01-01) Due to outstanding advantages of polymeric insulators such as: hydrophobicity, impact resistance and lower weight, their application in the high voltage transmission and distribution lines is increased significantly, in re...
Multi-source Partial Discharge Signals Discrimination by Six Bandpass filters and DBSCAN Clustering Anşin, Berfin (2018-01-01) Partial discharge (PD) signals generated by defects in a transformer insulation can be captured through measurement instruments and they may be used, after preprocessing, to discriminate the PD Sources. Some of the artific...
A Novel Method for Differentiating and Clustering Multiple Partial Discharge Sources using S Transform and Bag of Words Feature Anşin, Berfin; Darabad, V. P.; Phung, B. T.; Blackburn, T. R. (2017-12-01) Transformers are known as one of the most important equipment in power system transmission and distribution networks. Partial Discharge (PD) measurement and PRPD interpretation is a powerful tool to monitor the situation a...
Identification of Free Conducting Particles in Transformer Oils using PD Signals Anşin, Berfin; Vakilian, Mehdi (2015-01-01) Transformers are known as one of the most important equipment in power system transmission and distribution network. Safety of transformer insulation is determined mainly by its insulating oil dielectric strength. A major ...
Identification of metal particles in transformer oil using partial discharge signals Anşin, Berfin; Vakilian, Mehdi (2015-01-01) in this paper, the partial discharge current signals (pulses), along with pattern recognition methods for the assessment and diagnosis of PD (partial discharge) source of metal particles in the oil tank of the transformer ...

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