Showing papers by "K. Shanti Swarup published in 2014"
TL;DR: In this paper, the authors investigated the performance of CVT with electronic ferro-resonance suppression circuit (FSC) for different fault, loading and SIR conditions.
21 citations
01 Dec 2014
TL;DR: In this paper, the authors reviewed the work done in power system restoration and its procedural development throughout the years and proposed a suitable method for island formation during system restoration, and its issues are discussed.
Abstract: This paper reviews the work done in power system restoration and its procedural development throughout the years. The issues during restoration are discussed in details. Network reconfiguration is done to minimize the losses of the line with minimal changes to the present network. Voltage profile is also a major issue during network reconfiguration which is also addressed in this reconfiguration process. The island formation during the restoration process and its issues are discussed in this paper. A suitable method for island formation during system restoration is proposed.
4 citations
27 Jul 2014
TL;DR: In this article, the authors highlight the problem of distance relay maloperation when conventional ECBS is used to classify healthy and faulty lines in series compensated parallel transmission lines (SCPTL), which may result in tripping of both lines depending upon the fault location.
Abstract: Distance relay is typically assisted by earth-current balance scheme (ECBS) to classify healthy and faulty lines when used to protect parallel transmission lines. This paper highlights the problem of distance relay maloperation when conventional ECBS is used to classify healthy and faulty lines in series compensated parallel transmission lines (SCPTL). The existence of the problem is shown mathematically for different tower configurations, varying compensation levels and for different remote end in-feed levels. Analysis shows that conventional ECBS is not able to classify healthy and faulty lines which may result in tripping of both lines depending upon the fault location. This paper proposes a similar logic, which relies on angle information instead of magnitude information. Analysis shows that angle information is able to classify healthy and faulty lines, which can be used to assist distance relay protecting SCPTL.
2 citations
DOI•
03 Jun 2014TL;DR: In this article, the authors proposed an implementation procedure and performance testing of an algorithm comprising of cumulative sum algorithm and power flow methods for fault detection in micro-grid systems, which is found to be better than the traditional methods in the presence of noise, system frequency deviation, and other uncertainties for radial system.
Abstract: This paper proposes an implementation procedure and performance testing of an algorithm comprise of Cumulative sum algorithm and power flow methods for fault detection in micro-grid systems. The Cumulative sum algorithm is found to be better than the traditional methods in the presence of noise, system frequency deviation, and other uncertainties for radial system. By monitoring the power Flows between buses along with cumulative sum algorithm, detection of faults in micro-grid system is carried out. The proposed digital Fault detection is implemented experimentally for performance testing on a test micro-grid system. Several transient disturbances viz. grid connection, single-phase to ground fault, 2 phase fault, 3 phase to ground faults, etc. occurring in different parts of the test micro-grid system are investigated experimentally.
1 citations