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PC based integrated protection scheme for railway traction applications

Shenoy, UJ and Pal, BC and Parthasarathy, K and Pandian, A (1995) PC based integrated protection scheme for railway traction applications. In: Electric Machines and Power Systems, 23 (4). pp. 459-467.

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Abstract

This paper presents the design and development of a comprehensive digital protection scheme for applications in 25 KV a.c railway traction system. The scheme provides distance protection, detection of wrong phase coupling both in the lagging and leading directions, high set instantaneous trip and PT fuse failure. Provision is also made to include fault location and disturbance recording. The digital relaying scheme has been tried on two types of hardware platforms, one with PC/AT based hardware and the other with a custom designed standalone 16-bit microcontroller based card. Compared to the existing scheme, the operating time is around one cycle and the relaying algorithm has been optimised to minimise the number of computations. The prototype has been rigorously tested in the laboratory using a specially designed PC based relay test bench and the results are highly satisfactory.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Taylor and Francis Group.
Department/Centre: Division of Electrical Sciences > Electrical Engineering
Date Deposited: 23 May 2011 10:17
Last Modified: 23 May 2011 10:17
URI: http://eprints.iisc.ernet.in/id/eprint/37844

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