A Prototype of Multiprocessor Based Distance Relay
- 1 February 1982
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Power Apparatus and Systems
- Vol. PAS-101 (2) , 491-498
- https://doi.org/10.1109/tpas.1982.317133
Abstract
This paper concerns the design and realization of a digital relay for EHV systems. It describes the algorithm which has been used and the main principles of operation. Then it shows how a prototype has been built with four 16-bit microprocessors, to allow the simultaneous real-time computation of three apparent impedances. The hardware and software architecture are described. The paper also presents the results of the tests carried out on the relay: a tripping signal is sent within one period of 50 Hz for all faults (half a period for near-by short-circuits). Furthermore, single-phase tripping, directional discrimination and power-swing detection are provided.Keywords
This publication has 4 references indexed in Scilit:
- Field Experience with a Digital System for Transmission Line ProtectionIEEE Transactions on Power Apparatus and Systems, 1979
- A Digital System for Directional - Comparison RelayingIEEE Transactions on Power Apparatus and Systems, 1979
- The Laboratory Investigation of a Digital System for the Protection of Transmission LinesIEEE Transactions on Power Apparatus and Systems, 1979
- THE DEVELOPMENT AND SELECTION OF ALGORITHMS FOR RELAYING OF TRANSMISSION LINES BY DIGITAL COMPUTERPublished by Elsevier ,1978