Download or read book Condition Monitoring of Composite Insulator Using Partial Discharge Analysis written by Ida Ayu Dwi Giriantari and published by . This book was released on 2003 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Condition Monitoring of Composite Insulator Using PD Analysis written by Ida Ayu Dwi Giriantari and published by LAP Lambert Academic Publishing. This book was released on 2009-09 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is written based on study that has been performed with the aim of investigating the use of the partial discharge (PD)measurement technique for use as an assessment tool of the composite insulator condition. A computer-based discharge analyser was utilised to study the phase-resolved PD patterns and their statistical distributions, and also PD scatter plots. The full PD impulse waveforms with their frequency spectra were also studied by using a high frequency current transformer (HF-CT) to be able to study a wide range of frequency components of the PD signals and to study the possibility of doing on-line PD measurement in service using such a method. The results of the computer discharge analyser have shown a quite good correlation to change of the insulator surface condition. It was also found when high frequency components appeared, surface deterioration could be expected to have occurred. The use of PD measurements in identifying artificial defects on composite insulators found that PD detection of such defects also gave an indication of location of hole type defects on the insulator.

Download or read book Electromagnetic Analysis and Condition Monitoring of Synchronous Generators written by Jawad Faiz and published by John Wiley & Sons. This book was released on 2022-12-28 with total page 708 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electromagnetic Analysis and Condition Monitoring of Synchronous Generators Discover an insightful and complete overview of electromagnetic analysis and fault diagnosis in large synchronous generators In Electromagnetic Analysis and Condition Monitoring of Synchronous Generators, a team of distinguished engineers delivers a comprehensive review of the electromagnetic analysis and fault diagnosis of synchronous generators. Beginning with an introduction to several types of synchronous machine structures, the authors move on to the most common faults found in synchronous generators and their impacts on performance. The book includes coverage of different modeling tools, including the finite element method, winding function, and magnetic equivalent circuit, as well as various types of health monitoring systems focusing on the magnetic field, voltage, current, shaft flux, and vibration. Finally, Electromagnetic Analysis and Condition Monitoring of Synchronous Generators covers signal processing tools that can help identify hidden patterns caused by faults and machine learning tools enabling automated condition monitoring. The book also includes: A thorough introduction to condition monitoring in electric machines and its importance to synchronous generators Comprehensive explorations of the classification of synchronous generators, including armature arrangement, machine construction, and applications Practical discussions of different types of electrical and mechanical faults in synchronous generators, including short circuit faults, eccentricity faults, misalignment, core-related faults, and broken damper bar faults In-depth examinations of the modeling of healthy and faulty synchronous generators, including analytical and numerical methods Perfect for engineers working in electrical machine analysis, maintenance, and fault detection, Electromagnetic Analysis and Condition Monitoring of Synchronous Generators is also an indispensable resource for professors and students in electrical power engineering.

Download or read book Improved Condition Monitoring of Composite Insulators written by Elizabeth Da Silva Domingues and published by . This book was released on 2012 with total page 307 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Condition Assessment of High Voltage Insulation in Power System Equipment written by R.E. James and published by IET. This book was released on 2008 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers major components of a high voltage system and the different insulating materials applied in equipment, identifying measurable materials suitable for condition assessment, and also analyses insulation fault scenarios that may occur in power equipment.

Download or read book Power Transformer Condition Monitoring and Diagnosis written by Ahmed Abu-Siada and published by Institution of Engineering and Technology. This book was released on 2018-05-01 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: Power transformers are a key asset for electricity utilities around the globe. However, aging populations of large power transformers require reliable monitoring and diagnostics techniques to extend the asset's lifetime and minimise the possibility of catastrophic failure. This book describes the most popular power transformer condition monitoring techniques from principles to practice.

Download or read book Development of a Continuous Condition Monitoring System Based on Probabilistic Modelling of Partial Discharge Data for Polymeric Insulation Cables written by Zeeshan Ahmed and published by . This book was released on 2019 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt: Partial discharge (PD) measurements have been widely accepted as an efficient online insulation condition assessment method in high voltage equipment. Two sets of experimental PD measuring setups were established with the aim to study the variations in the partial discharge characteristics over the insulation degradation in terms of the physical phenomena taking place in PD sources, up to the point of failure. Probabilistic lifetime modeling techniques based on classification, regression and multivariate time series analysis were performed for a system of PD response variables, i.e. average charge, pulse repetition rate, average charge current, and largest repetitive discharge magnitude over the data acquisition period. Experimental lifelong PD data obtained from samples subjected to accelerated degradation was used to study the dynamic trends and relationships among those aforementioned response variables. Distinguishable data clusters detected by the T-Stochastics Neighborhood Embedding (tSNE) algorithm allows for the examination of the state-of-the-art modeling techniques over PD data. The response behavior of trained models allows for distinguishing the different stages of the insulation degradation. An alternative approach utilizing a multivariate time series analysis was performed in parallel with Classification and Regression models for the purpose of forecasting PD activity (PD response variables corresponding to insulation degradation). True observed data and forecasted data mean values lie within the 95th percentile confidence interval responses for a definite horizon period, which demonstrates the soundness and accuracy of models. A life-predicting model based on the cointegrated relations between the multiple response variables, trained model responses correlated with experimentally evaluated time-to-breakdown values and well-known physical discharge mechanisms, can be used to set an emergent alarming trigger and as a step towards establishing long-term continuous monitoring of partial discharge activity. Furthermore, this dissertation also proposes an effective PD monitoring system based on wavelet and deflation compression techniques required for an optimal data acquisition as well as an algorithm for high-scale, big data reduction to minimize PD data size and account only for the useful PD information. This historically recorded useful information can thus be used for, not only post-fault diagnostics, but also for the purpose of improving the performance of modelling algorithms as well as for an accurate threshold detection.

Download or read book Partial Discharge Classification Using Acoustic Signals and Artificial Neural Networks and Its Application in Detection of Defects in Ceramic Insulators written by Satish Kumar Polisetty and published by . This book was released on 2019 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: Online condition monitoring of critical assets constitutes one method whereby the electrical insulation industry can help safeguard grids through the avoidance of system outages due to insulation failure. This thesis introduces a novel approach for monitoring the condition of outdoor ceramic insulators based on partial discharge (PD) measurements. The presence of physical defects such as punctures, broken porcelain, and cracks will ultimately lead to the initiation of PD activity in outdoor ceramic insulators. In addition to defects, surface discharges such as that caused by corona and dry band arcing are also very common, particularly in wet and polluted outdoor insulators. Such a discharge activity that originates in these kinds of conditions can cause flashover or insulator failure, resulting in power outages. Measuring early-stage discharge activity is thus very important as a means of avoiding catastrophic situations in power networks. The work presented in this thesis involved initial tests conducted to distinguish between different types of controlled discharges generated in the laboratory. The next step was the implementation of an artificial neural network (ANN) for classifying the type of discharge based on selected features extracted from the measured acoustic signals. First, relatively high-frequency acoustic signals are transformed into low-frequency signals using an envelope detection algorithm imbedded in the commercial acoustic sensor. A fast Fourier transform (FFT) is then applied to each low-frequency signal, and finally, 60 Hz, 120 Hz, and 180 Hz are used as input feature vectors for the developed ANN. This initial research was then extended to include testing of the proposed diagnostic tool on a practical insulation system, and outdoor ceramic insulators were selected for this purpose. Three types of defects were tested under laboratory conditions: a cracked ceramic insulator, a healthy insulator contaminated by wetting with salt water, and a corona generated from a thin wire wound to the ceramic insulator. Both a single disc, and three discs connected in an insulator string were tested with respect to these defects. For both controlled samples and full insulators, a recognition rate of more than 85 % was achieved.

Download or read book Condition Monitoring of High Voltage Power Transformer Insulation Systems by Partial Discharge Measurement written by Justin R. Hyde and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of the 6th International Conference on Electrical Engineering and Information Technologies for Rail Transportation EITRT 2023 written by Jianwei Yang and published by Springer Nature. This book was released on 2024-01-08 with total page 709 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reflects the latest research trends, methods, and experimental results in the field of electrical and information technologies for rail transportation, which covers abundant state-of-the-art research theories and ideas. As a vital field of research that is highly relevant to current developments in a number of technological domains, the subjects it covered include intelligent computing, information processing, communication technology, automatic control, etc. The objective of the proceedings is to provide a major interdisciplinary forum for researchers, engineers, academicians, and industrial professionals to present the most innovative research and development in the field of rail transportation electrical and information technologies. Engineers and researchers in academia, industry, and government will also explore an insightful view of the solutions that combine ideas from multiple disciplines in this field. The volumes serve as an excellent reference work for researchers and graduate students working on rail transportation and electrical and information technologies.

Download or read book Electrical Electronics Abstracts written by and published by . This book was released on 1997 with total page 1860 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Inspection and Monitoring Technologies of Transmission Lines with Remote Sensing written by Yi Hu and published by Academic Press. This book was released on 2017-03-17 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inspection and Monitoring Technologies of Transmission Lines with Remote Sensing helps readers build a thorough understanding of new technologies and world-class practices developed by the State Grid Corporation of China—the organization responsible for the world’s largest power distribution network. Monitoring the operational status of high-voltage transmission lines is critical in supply assurance and continuity. Given the physical size, geographical, and climate variances that transmission lines are subject to, remote sensing and inspection is a critical technology for power distribution organizations. This reference covers current and developing technologies, equipment, and methods for the safe and secure operation and maintenance of transmission lines, including satellite remote sensing technology, infrared and ultraviolet detection technology, helicopter inspection technology, and condition monitoring technology. Covers operational and technical principles, and equipment used in transmission line inspection and monitoring, with a focus on remote sensing technologies and solutions Covers power line fundamentals, remote sensing technologies, inspection technologies, fault detection technologies, and on-line monitoring Focuses on practical equipment and systems parameters to ensure readers are able to meet operational needs Covers control technologies that ensure safe and consistent transmission operation

Download or read book Electronic Systems and Intelligent Computing written by Pradeep Kumar Mallick and published by Springer Nature. This book was released on 2020-09-22 with total page 1126 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents selected, high-quality research papers from the International Conference on Electronic Systems and Intelligent Computing (ESIC 2020), held at NIT Yupia, Arunachal Pradesh, India, on 2 – 4 March 2020. Discussing the latest challenges and solutions in the field of smart computing, cyber-physical systems and intelligent technologies, it includes papers based on original theoretical, practical and experimental simulations, developments, applications, measurements, and testing. The applications and solutions featured provide valuable reference material for future product development.

Download or read book Simulation and Modelling of Electrical Insulation Weaknesses in Electrical Equipment written by Ricardo Albarracín Sánchez and published by BoD – Books on Demand. This book was released on 2018-10-17 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: Around 80% of electrical consumption in an industrialised society is used by machinery and electrical drives. Therefore, it is key to have reliable grids that feed these electrical assets. Consequently, it is necessary to carry out pre-commissioning tests of their insulation systems and, in some cases, to implement an online condition monitoring and trending analysis of key variables, such as partial discharges and temperature, among others. Because the tests carried out for analysing the dielectric behaviour of insulation systems are commonly standardised, it is of interest to have tools that simulate the real behaviour of those and their weaknesses to prevent electrical breakdowns. The aim of this book is to provide the reader with models for electrical insulation systems diagnosis.

Download or read book Engineering Asset Management written by Joseph Mathew and published by Springer Science & Business Media. This book was released on 2008-02-06 with total page 1261 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is with great pleasure that we welcome you to the inaugural World Congress on Engineering Asset Management (WCEAM) being held at the Conrad Jupiters Hotel on the Gold Coast from July 11 to 14, 2006. More than 170 authors from 28 countries have contributed over 160 papers to be presented over the first three days of the conference. Day four will be host to a series of workshops devoted to the practice of various aspects of Engineering Asset Management. WCEAM is a new annual global forum on the various multidisciplinary aspects of Engineering Asset Management. It deals with the presentation and publication of outputs of research and development activities as well as the application of knowledge in the practical aspects of: strategic asset management risk management in asset management design and life-cycle integrity of physical assets asset performance and level of service models financial analysis methods for physical assets reliability modelling and prognostics information systems and knowledge management asset data management, warehousing and mining condition monitoring and intelligent maintenance intelligent sensors and devices regulations and standards in asset management human dimensions in integrated asset management education and training in asset management and performance management in asset management. We have attracted academics, practitioners and scientists from around the world to share their knowledge in this important emerging transdiscipline that impacts on almost every aspect of daily life.

Download or read book Proceedings of Third International Conference on Communication Computing and Electronics Systems written by V. Bindhu and published by Springer Nature. This book was released on 2022-03-19 with total page 1111 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book includes high quality research papers presented at the International Conference on Communication, Computing and Electronics Systems 2021, held at the PPG Institute of Technology, Coimbatore, India, on 28-29 October 2021. The volume focuses mainly on the research trends in cloud computing, mobile computing, artificial intelligence and advanced electronics systems. The topics covered are automation, VLSI, embedded systems, optical communication, RF communication, microwave engineering, artificial intelligence, deep learning, pattern recognition, communication networks, Internet of Things, cyber-physical systems, and healthcare informatics.

Download or read book Power Transformer Diagnostics Monitoring and Design Features written by Issouf Fofana, Ph.D. ing. Chairholder and published by MDPI. This book was released on 2019-01-09 with total page 255 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue "Power Transformer Diagnostics, Monitoring and Design Features" that was published in Energies