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S. Nath

Bio: S. Nath is an academic researcher from Indian Institute of Engineering Science and Technology, Shibpur. The author has contributed to research in topics: Current transformer & Fault indicator. The author has an hindex of 1, co-authored 1 publications receiving 5 citations.

Papers
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Journal ArticleDOI
TL;DR: In this article, a microcomputer based fault protection scheme for indicating various types of faults in a radial transformer feeder in subtransmission or distribution circuits and its protection against those faults was developed.
Abstract: This investigation aims to develop a comprehensive microcomputer based fault protection scheme for indicating various types of faults in a radial transformer feeder in subtransmission or distribution circuits and its protection against those faults. The type of fault in the feeder can also be determined by observing the phase angles of the primary currents of the transformer with which the feeder is connected at its secondary. This method dispenses off conventional electromagnetic relays and HRC fuses in feeder protection schemes. The developed system provides necessary information regarding the faulted phase and displays appropriate symbols on the display screen of the microcomputer about the type of fault

7 citations


Cited by
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Journal ArticleDOI
TL;DR: A new single phase-to-ground short-circuit fault location algorithm for overhead three-phase radial distribution lines with single-ended measurements using the sinusoidal steady-state analysis method is proposed.
Abstract: This paper proposes a new single phase-to-ground short-circuit fault location algorithm for overhead three-phase radial distribution lines with single-ended measurements using the sinusoidal steady-state analysis method. By using this approach, two sinusoidal signals with different frequencies are first injected to the faulted line. By measuring the voltages and currents at the sending end and solving some nonlinear distributed-parameter equations, the distances and resistances of all possible fault candidates can be determined. A feature extraction method is derived to distinguish the actual fault from other pseudofault candidates. A fault locator based on the proposed approach is designed and implemented for a real-world problem. Physical model experiments and the field tests on radial distribution lines are presented to validate the proposed fault location approach

37 citations

Journal ArticleDOI
TL;DR: In this article, the authors review the advent of microgrid and also the protection strategies that are incorporated in the system integrated with renewable energy systems (RES), and propose a solution to provide continuity of supply to customers.
Abstract: Microgrids are indispensable at the distribution level network and is capable of operating in both grid connected and islanded modes. Integration of renewable sources in a microgrid is a viable solution to provide continuity of supply to customers. Due to bidirectional power flow, conventional protection strategies are not applicable to microgrids. Also the change in topology of the network poses a key challenge to protection engineers. This paper reviews the advent of microgrid and also the protection strategies that are incorporated in the system integrated with renewable energy systems (RES).

28 citations

Journal ArticleDOI
TL;DR: In this article , the authors analyzed the energy conservation and emission-reduction technologies and potential decarbonization paths for data centers, compared the energy-saving situation of 20 typical data center cases, and highlighted the impact of green data centers on the global carbon neutrality goal.

10 citations

Journal ArticleDOI
12 Apr 2018
TL;DR: A novel distributed insulation monitoring method for railway signaling power system that can monitor continually the resistive earth leakage current and determine the location of the leakage point by tracking the rectified current difference pattern is introduced.
Abstract: Signaling power is crucial to an operational railway system as any signaling power failure results in serious operational and financial impacts. Therefore, intelligent condition monitoring and accurate fault location are important for the railway industry. This paper introduces a novel distributed insulation monitoring method for railway signaling power system that can monitor continually the resistive earth leakage current and determine the location of the leakage point by tracking the rectified current difference pattern. This method can be used for extended signaling power distribution networks with multiple branches and requires no external power supply or signal injection.

5 citations

Proceedings ArticleDOI
02 Oct 2009
TL;DR: In this article, the results obtained from the application of technical strategies for high-impedance fault practical experiments in power distribution systems for automation purposes are presented, which can also be used to valid several methodologies employed in automatic identification and classification processes of faults in distribution lines, which still contribute to increase both reliability and safety when practical experiments are necessary.
Abstract: The main objective involved with this paper consists of presenting the results obtained from the application of technical strategies for high-impedance fault practical experiments in power distribution systems for automation purposes. Such results can also be used to valid several methodologies employed in automatic identification and classification processes of faults in distribution lines, which can still contribute to increase both reliability and safety when practical experiments are necessary. The compilations of the results obtained from the application of these strategies are presented for validation purposes.

3 citations