NDLI: Effective analysis of time-domain dielectric response for reliable diagnosis of power transformer insulation using statistical parameter evaluated from time-varying model

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Effective analysis of time-domain dielectric response for reliable diagnosis of power transformer insulation using statistical parameter evaluated from time-varying model

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Effective analysis of time-domain dielectric response for reliable diagnosis of power transformer insulation using statistical parameter evaluated from time-varying model

Content Provider	IET Digital Library
Author	Banerjee, Chandra Madhab Baral, Arijit Chakravorti, Sivaji
Abstract	Various types of insulation models with time-invariant parameters are available in the literature. Depending on the aging sensitive performance parameters to be evaluated, different models need to be employed (e.g. XY model for oil and paper-conductivity, conventional Debye model (CDM) for paper-moisture and tanδ). While the XY model cannot be used for estimating paper-moisture directly, analysis based on CDM parameter becomes dependent on its branch parameters, which are non-unique. These factors lead to either incomplete or ambiguous insulation diagnosis. These problems are resolved using the proposed new insulation model containing unique time-varying branch parameters. Another major advantage of the proposed model is that it can be used to evaluate a host of performance parameters (like paper-conductivity, oil and paper-moisture, dielectric loss) thus giving a complete picture of the insulation concerned. The application of the proposed model is also tested on data collected from several real-life power transformers.
Starting Page	48
Ending Page	55
Page Count	8
ISSN	17518822
Volume Number	14
e-ISSN	17518830
Issue Number	Issue 1, Jan (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-smt/14/1
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-smt.2018.5673
Journal	IET Science, Measurement & Technology
Publisher Date	2019-09-26
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Aging Sensitive Performance Parameter Ambiguous Insulation Diagnosis CDM Parameter Conventional Debye Model Dielectric Loss Effective Analysis Incomplete Insulation Diagnosis Insulation Model Moisture Organic Insulation Paper-conductivity Paper-moisture Estimation Power Transformer Insulation Real-life Power Transformer Reliable Diagnosis Statistical Analysis Statistical Parameter Statistics Time-domain Dielectric Response Time-invariant Parameter Time-varying Model Transformer And Reactors Unique Time-varying Branch Parameter XY Model
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Electrical and Electronic Engineering

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