Publisher : The Korean Institute of Electrical Engineers
DOI : 10.5370/JEET.2010.5.4.646
Title & Authors
Improving Breakdown Voltage Characteristics of GDAs using Trigger Voltage Lee, Sei-Hyun;
This paper investigates a method to improve the breakdown voltage characteristics of a gas discharge arrester (GDA) for a surge suppressor. The middle electrode is inserted between two terminal electrodes. Voltage application to the electrode synchronized and amplified by the impulse voltage decreases spark overvoltage from 45% to 57.6%. The decrease is caused by higher voltage slope, as opposed to applied impulse voltage (by 5.5 to 6.2 times). In addition, the GDA model using ATP-Draw was used to analyze the operation characteristics of GDAs. The test and simulation results agree to within 2% when the trigger source was used.
Gas discharge arrester (GDA);Breakdown voltage;Trigger voltage;dv/dt;surge;ATP-Draw;