scispace - formally typeset
Search or ask a question
Author

S. Sengupta

Bio: S. Sengupta is an academic researcher from University of Calcutta. The author has contributed to research in topics: Transmission system & Electronic circuit. The author has an hindex of 1, co-authored 1 publications receiving 1 citations.

Papers
More filters
Journal ArticleDOI
TL;DR: In this paper, a microprocessor based ultra high speed relay has been developed for protection of a transmission line against open circuit fault which operates on the principle of continuous tracing of the line current waveforms thus eliminating sequence filters, and it requires less than one cycle to operate even in the worst possible fault condition.
Abstract: A modern power system consisting of multi-bus EHV/UHV transmission links to increase the capacity and reliability of the system, requires faster and reliable operation of relays and circuit breakers for its protection. The present day available relays for protection of transmission lines against open circuit fault are not sufficient for application in EHV/UHV circuits for their larger operating time. In the present paper, a microprocessor based ultra high speed relay has been developed for protection of a transmission line against open circuit fault which operates on the principle of continuous tracing of the line current waveforms thus eliminating sequence filters, and it requires less than one cycle to operate even in the worst possible fault condition. Application of a microprocessor enhances the accuracy, reliability and speed of operation of the device eliminating complicated hardware and dead band in operation. The use of zero crossing detectors in signal processing keeps the signals free f...

1 citations


Cited by
More filters
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