Single Phase Switching Tests on the AEP 765 KV System-Extinction Time for Large Secondary Arc Currents

Single Phase Switching (SPS) tests were performed on AEP's Kammer-Marysville 765 kV line during April of 1980 in order to determine the self-extinction times of large secondary arc currents in circuits with varying degrees of SPS compensation. Five fault tests were performed and the results are presented along with an analysis of various secondary arc parameters such as: volt-ampere characteristic, air gap dielectric recovery, harmonic spectrum and energy. An arc model was developed and verified in a computer simulation of one of the test circuits.