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Article
Publication date: 11 May 2010

Bo Zhang, Jinliang He, Rong Zeng and Xidong Liang

The purpose of this paper is to introduce an efficient model for analysis of the voltage distribution along the long ceramic insulator strings in a high‐voltage tower window…

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Abstract

Purpose

The purpose of this paper is to introduce an efficient model for analysis of the voltage distribution along the long ceramic insulator strings in a high‐voltage tower window, especially when the structure and parameters of the ceramic insulator are unknown. The effect of the grading ring on the voltage distribution is also investigated.

Design/methodology/approach

A circuit model composed of capacitors is used to analyze the voltage distribution along the ceramic insulator strings in a transmission tower window. The capacitances of the disk insulators, line conductors, and tower are obtained by using the finite element method, charge simulation method, boundary element method, and measurement according to their characteristics.

Findings

The model is very efficient. The voltage distribution along insulator strings can be optimized by adjusting the parameters of the grading ring. The maximum amount of voltage applied to a single insulator disk can be reduced effectively by increasing either the diameter of the grading ring or the distance from the upper surface of the grading ring to the high‐voltage end of the insulator string.

Originality/value

The model is very efficient for analysis of the voltage distribution along the long ceramic insulator strings, especially when the structure and parameters of the ceramic insulator are unknown.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, vol. 29 no. 3
Type: Research Article
ISSN: 0332-1649

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Article
Publication date: 17 April 2023

Faiza Bashir and Nosheen Fatima Warraich

The purpose of this study is to look into the concept of blockchain technology which stores data in a distributed, tamper-resistant setting and how this technology may affect the…

577

Abstract

Purpose

The purpose of this study is to look into the concept of blockchain technology which stores data in a distributed, tamper-resistant setting and how this technology may affect the future library and information (LI) centers’ operations and policy. It explores the potential benefits and limitations of this technology, for LI centers are the core objectives of this paper.

Design/methodology/approach

A systematic review of both academic and practitioner literature was conducted. It followed the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (2020) standards.

Findings

The review shows that the decentralized nature of blockchain will transform the work in libraries and improve the inter-communication among communities. It can provide better privacy of user data thus increasing collaboration. However, there might be technological, financial, legal and social challenges that may act as hurdles to the realization of these goals in the true sense. The overall result shows that by keeping data updated, libraries can evaluate blockchain opportunities and make the best use of this technology.

Practical implications

Given the huge investments by industry, academic research that explores potential ramifications and supports libraries is required. The adoption of blockchain was investigated in this study from a variety of perspectives for LI center’s while also providing directions for future research.

Originality/value

It is evident that globally there is progress in blockchain technology development in terms of research and adoption in many industries, but the intention to adopt blockchain by libraries is still a fantasy. The lack of empirical evidence in the existing literature justifies the gap that needs to be filled. This systematic review attempts to fill the gaps in the existing knowledge which may serve as a reference for future initiatives in this field.

Details

Digital Library Perspectives, vol. 39 no. 3
Type: Research Article
ISSN: 2059-5816

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