Ultra High Speed Relay for EHV/UHV Transmission Lines -- Development, Design and Application
- 1 November 1978
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Power Apparatus and Systems
- Vol. PAS-97 (6) , 2104-2116
- https://doi.org/10.1109/tpas.1978.354714
Abstract
A new protective relay that solves many of the problems associated with the protection of EHV and future UHV systems is described. Based on a traveling wave approach the relay system operates at ultra high speed and can detect and determine the direction to a fault in a few milliseconds. The relay operating principle, design and application are presented as well as results from computer simulation studies and laboratory tests. The first relay system was installed in the USA in Bonneville Power Administration's 500 kV system and represents a substantial contribution to present efforts to shorten fault clearing times as a method to improve system stability and power transfer capability.Keywords
This publication has 4 references indexed in Scilit:
- Ultra High Speed Relay for EHV/UHV Transmission Lines -- Installation-Staged Fault Tests and Operational ExperienceIEEE Transactions on Power Apparatus and Systems, 1978
- One-Cycle Fault Interruption at 500 kV: System Benefits and Breaker DesignIEEE Transactions on Power Apparatus and Systems, 1974
- A Digital Computer Program for the Calculation of Switching and Lightning Surges on Power SystemsIEEE Transactions on Power Apparatus and Systems, 1970
- Improvement of Power System Stability by Changes in the NetworkIEEE Transactions on Power Apparatus and Systems, 1969