A New Computer Based Integrated Distance Relay For Parallel Transmission Lines
- 1 February 1985
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Power Apparatus and Systems
- Vol. PAS-104 (2), 445-452
- https://doi.org/10.1109/TPAS.1985.319060
Abstract
Simultaneous single phase faults on different phases of parallel transmission lines may cause three phase trips on both lines although the faults in question do not warrant three phase trip. When such lines constitute the only link between a power plant and the remaining power system, misoperation of relays often leads to a loss of generators through loss of synchronism. This problem has been analyzed, and a new integrated relaying principle proposed which produces a secure decision to trip only the faulted phases in cases of complex simultaneous faults. Results of simulated relay performance are given. Also included are some preliminary considerations regarding computer implementation of the new relay.Keywords
This publication has 2 references indexed in Scilit:
- Fundamental basis for distance relaying with symmetrical componentsIEEE Transactions on Power Apparatus and Systems, 1977
- Fundamental Basis for Distance Relaying on 3-Phase SystemsTransactions of the American Institute of Electrical Engineers, 1947