Journal ArticleDOI
Generator Differential Protection Using a Hybrid Computer
M.S. Sachdev,D.W. Wind +1 more
TLDR
In this article, a rea1-time hybrid, analog-digital, computer technique for differential protection of generators is presented, where the fault/no fault decisions are based on the amplitude ratio of the "fault" and "average through" currents from a selected generator phase.Abstract:
This paper presents a rea1-time hybrid, analog-digital, computer technique for differential protection of generators. The fault/no fault decisions are based on the amplitude ratio of the "fault"' and "average through" currents from a selected generator phase. Analog input data pre-processor, fault monitor and soft-ware segments suitable for valid comparison during the transient period after the inception of a fault are described. Typical examples, from out of approximately 800 case studies, including internal and external faults using a three phase generator are presented.read more
Citations
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Book
Computer Relaying for Power Systems
Arun G. Phadke,James S. Thorp +1 more
TL;DR: In this paper, the authors present a comprehensive, up-to-date account of computer relaying in power systems, based in part on the author's extensive experience in the field.
Proceedings ArticleDOI
Transient based protection for power transmission systems
TL;DR: In this article, the authors introduce new developments in fault transient based power system protection techniques and highlight the advantages of these techniques over conventional techniques, and introduce a number of new transient based protection techniques under development.
Journal ArticleDOI
An artificial neural network based digital differential protection scheme for synchronous generator stator winding protection
A.I. Megahed,Om P. Malik +1 more
TL;DR: In this article, a new artificial neural network (ANN) based digital differential protection scheme for generator stator winding protection is described. But the scheme only uses two ANNs, one for fault detection and the other for internal fault classification.
Journal ArticleDOI
Frequency domain analysis applied to digital transmission line protection
J. Carr,R.V. Jackson +1 more
TL;DR: In this paper, a complete signal processing technique is designed on the basis of a frequency domain analysis of the protection requirements, and such factors as analog filtering, data window size and sampling frequency are chosen by their frequency characteristics.
Proceedings ArticleDOI
Integrated protection of power systems
TL;DR: In this article, a novel integrated protection scheme for substation and network protection is described, which is based on the detection and processing of fault generated transient current signals, in which specially designed protection relays are installed at each substation of a network.
References
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Journal ArticleDOI
Fault Protection with a Digital Computer
TL;DR: In this article, a fundamental basis has been developed for the use of a time-shared stored-program digital computer to perform many of the electrical power-system protective-relay functions in a substation.
Journal ArticleDOI
Digital Calculation of Impedance for Transmission Line Protection
Barry J. Mann,I. F. Morrison +1 more
TL;DR: In this article, the authors proposed a method of distance-type protection suitable for on-line digital computer protection of transmission lines, based on the predictive calculation of peak fault current and voltage from a small number of sample values.
Journal ArticleDOI
A Proposed Method of Harmonic Restraint Differential Protecting of Transformers by Digital Computer
J. A. Sykes,I. F. Morrison +1 more
TL;DR: The principles of a method of transformer protection by digital computer are described, which is essentially an adaptation ion of harmonic-restraint differential protection.
Journal ArticleDOI
Relaying a Three Phase Transmission Line with a Digital Computer
B. J. Mann,I. F. Morrison +1 more
TL;DR: In this paper, a digital computer program for the protection of a three-phase transmission line is described, which detects the presence of a disturbance, classifies the fault into one of six fault types and determines the modulus and phase of the impedance of the faulted line.
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