High-pressure plasma phenomena in spark gaps - a survey
For the protection of an electrical circuit from an impulse current as a result of a lightning phenomena a surge protective device for example based on the spark gap technology is used. The introduced energy from an impulse current is dissipated through the arc plasma that is formed in the spark gap. For the development of surge protective devices based on the spark gap technology the investigation of the formed arc plasma up to higher pressures and temperatures is of importance. In this research work a survey on an experimental setup along with the used diagnostic techniques for the investigation of an air arc plasma in a model plasma chamber driven by an impulse current is given. Based on it an experimental data model is developed that is used together with theoretical considerations to study the air arc plasma up to higher pressures and temperatures.
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