Investigation of overall and local vibration characteristics of disk-type windings

Fan Zhang; Shengchang Ji; Lakshitha Naranpanawe; Hui Ma; Chandima Ekanayake; Tapan Saha; Lingyu Zhu

doi:10.1049/iet-gtd.2019.0756

Investigation of overall and local vibration characteristics of disk-type windings

Fan Zhang
, Shengchang Ji
, Lakshitha Naranpanawe
, Hui Ma
, Chandima Ekanayake
, Tapan Saha
, Lingyu Zhu

School of Electrical Engineering

Xi'an Jiaotong University
University of Queensland

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

This study investigates the overall and local vibration characteristics of disk-type windings in power transformers. The influence of clamping pressure relaxation and pressboard aging on windings' overall modal characteristics is studied. Individual conductors in a winding can vibrate independently and have the local vibration from that of overall windings. The local vibration characteristics of conductors under hoop tension, axial bending and the loss of clamping pressure are investigated. It is found that the clamping pressure relaxation and pressboard aging lead to the decrease of natural frequencies but the faulty conductors result in the increasing number of natural frequencies.

Original language	English
Pages (from-to)	3685-3691
Number of pages	7
Journal	IET Generation, Transmission and Distribution
Volume	14
Issue number	18
DOIs	https://doi.org/10.1049/iet-gtd.2019.0756
State	Published - 18 Sep 2020

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10.1049/iet-gtd.2019.0756

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title = "Investigation of overall and local vibration characteristics of disk-type windings",

abstract = "This study investigates the overall and local vibration characteristics of disk-type windings in power transformers. The influence of clamping pressure relaxation and pressboard aging on windings' overall modal characteristics is studied. Individual conductors in a winding can vibrate independently and have the local vibration from that of overall windings. The local vibration characteristics of conductors under hoop tension, axial bending and the loss of clamping pressure are investigated. It is found that the clamping pressure relaxation and pressboard aging lead to the decrease of natural frequencies but the faulty conductors result in the increasing number of natural frequencies.",

author = "Fan Zhang and Shengchang Ji and Lakshitha Naranpanawe and Hui Ma and Chandima Ekanayake and Tapan Saha and Lingyu Zhu",

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doi = "10.1049/iet-gtd.2019.0756",

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TY - JOUR

T1 - Investigation of overall and local vibration characteristics of disk-type windings

AU - Zhang, Fan

AU - Ji, Shengchang

AU - Naranpanawe, Lakshitha

AU - Ma, Hui

AU - Ekanayake, Chandima

AU - Saha, Tapan

AU - Zhu, Lingyu

PY - 2020/9/18

Y1 - 2020/9/18

N2 - This study investigates the overall and local vibration characteristics of disk-type windings in power transformers. The influence of clamping pressure relaxation and pressboard aging on windings' overall modal characteristics is studied. Individual conductors in a winding can vibrate independently and have the local vibration from that of overall windings. The local vibration characteristics of conductors under hoop tension, axial bending and the loss of clamping pressure are investigated. It is found that the clamping pressure relaxation and pressboard aging lead to the decrease of natural frequencies but the faulty conductors result in the increasing number of natural frequencies.

AB - This study investigates the overall and local vibration characteristics of disk-type windings in power transformers. The influence of clamping pressure relaxation and pressboard aging on windings' overall modal characteristics is studied. Individual conductors in a winding can vibrate independently and have the local vibration from that of overall windings. The local vibration characteristics of conductors under hoop tension, axial bending and the loss of clamping pressure are investigated. It is found that the clamping pressure relaxation and pressboard aging lead to the decrease of natural frequencies but the faulty conductors result in the increasing number of natural frequencies.

UR - https://www.scopus.com/pages/publications/85090429179

U2 - 10.1049/iet-gtd.2019.0756

DO - 10.1049/iet-gtd.2019.0756

M3 - 文章

AN - SCOPUS:85090429179

SN - 1751-8687

VL - 14

SP - 3685

EP - 3691

JO - IET Generation, Transmission and Distribution

JF - IET Generation, Transmission and Distribution

IS - 18

ER -

Investigation of overall and local vibration characteristics of disk-type windings

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