Influence of moisture on the interface charge of oil–pressboard composite insulation under DC voltage

Influence of moisture on the interface charge of oil–pressboard composite insulation under DC voltage

The distortion of the electric field in the oil–pressboard composite insulation caused by the accumulation of the interface charge is detrimental to both the insulation design and operation of converter transformers. The influence of moisture content on the surface charge accumulation of oil–pressbo...

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Bibliographic Details
Main Authors: Bo Qi, Yanqiu Jiao, Chunjia Gao, Shuqi Zhang, Xiaolin Zhao, Chengrong Li
Format: Article
Language:English
Published: Wiley 2018-03-01
Series:High Voltage
Subjects:
transformer oil
surface charging
power transformer insulation
composite insulating materials
interface charge
oil-pressboard composite insulation
DC voltage
moisture content
surface charge accumulation
Kerr electro-optic effect
electric field strengths
surface charge density
oil resistivity
pressboard resistivity
negative charges
Maxwell-Wagner theory
interfacial charge density
Online Access:https://digital-library.theiet.org/content/journals/10.1049/hve.2017.0096

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https://digital-library.theiet.org/content/journals/10.1049/hve.2017.0096

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