How the Switching-Surge Family Affects Line Insulation
- 1 December 1963
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Power Apparatus and Systems
- Vol. 82 (69) , 1024-1033
- https://doi.org/10.1109/tpas.1963.291487
Abstract
Tests were made at the Barberton, Ohio, outdoor laboratory of The Ohio Brass Company to cover a range of insulator string lengths, tower sizes, and switching-surge wave shapes, and to explore the response of line insulation to these surges. Surge-front durations of about 250μsec (microseconds) give the lowest flashover voltages. The effect of a preceding trapped line charge (bias voltage) is small but not negligible. Expected field performance under normally adverse conditions is given for line-to-tower insulation and midspan-to-ground gaps. Rod gap studies explain some of the low positive-polarity dry switching-surge flashovers.Keywords
This publication has 7 references indexed in Scilit:
- Rainfall Rate and Resistivity at East Pittsburgh, Pa.Transactions of the American Institute of Electrical Engineers. Part III: Power Apparatus and Systems, 1962
- Effect or Preceding Bias Voltage on Switching-Surge Operation of Spill Gaps and Lightning ArrestersTransactions of the American Institute of Electrical Engineers. Part III: Power Apparatus and Systems, 1962
- Switching Surges and Arrester and Gap Performance during 200-Kv Line-Dropping TestsTransactions of the American Institute of Electrical Engineers. Part III: Power Apparatus and Systems, 1962
- Field Tests of Lightning-Arrester Voltage and Current Caused by Switching a 220kv LineTransactions of the American Institute of Electrical Engineers. Part III: Power Apparatus and Systems, 1961
- The Flashover Strength of Extra-High-Voltage Line and Station InsulationTransactions of the American Institute of Electrical Engineers. Part III: Power Apparatus and Systems, 1961
- Switching Surges I-Phase-to-Ground Voltages AIEE Committee ReportTransactions of the American Institute of Electrical Engineers. Part III: Power Apparatus and Systems, 1961
- Effect of Rainfall Resistivity on 60-Cycle Wet Flashover of Suspension InsulatorsTransactions of the American Institute of Electrical Engineers. Part III: Power Apparatus and Systems, 1960