|Table of Contents|

Comparative study on transformer winding deformation detectedby nanosecond pulse method and frequency response method(PDF)

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2020年01期
Page:
94-99
Research Field:
Publishing date:

Info

Title:
Comparative study on transformer winding deformation detectedby nanosecond pulse method and frequency response method
Author(s):
Liu XinheHuang WenwuWu Haitao
Shenzhen Power Supply Bureau Co. Ltd,Shenzhen 518000,China
Keywords:
transformer winding defect nanosecond pulse frequency response analysis sensitivity
PACS:
TM835.4
DOI:
10.14177/j.cnki.32-1397n.2020.44.01.015
Abstract:
In order to detect imperfections of the power transformer winding,improve the sensitivity of transformer winding deformation detection as well as reduce misjudgment rate,this paper not only designs the nanosecond pulse excitation unit and the time-frequency response unit,but also develops the transformer winding deformation detection system based on the nanosecond pulse method which is used to test the turn-to-turn fault and the coil axial displacement of transformer winding. The experimental results of the nanosecond pulse method are compared with the frequency response analysis(FRA). Experimental results show that the detecting system can effectively identify transformer winding deformation and has high detection sensitivity.

References:

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Last Update: 2020-02-29