# Effect of Electrode Geometry on the Positive Impulse Breakdown in Carbon Dioxide

Rajendran, Babu TV and Lakshminarasimha, CS and Naidu, MS (1983) Effect of Electrode Geometry on the Positive Impulse Breakdown in Carbon Dioxide. In: IEEE Transactions on Electrical Insulation, EI-18 (4). pp. 455-457.

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## Abstract

Positive impulse $(1.2/50 \mu s)$ breakdown voltage measurements were carried out in carbon dioxide $(CO_2)$ under different electric field conditions by varying the sphere diameter in sphere-plane geometry. $CO_2$ gas pressures up to 1 MPa were used, with the gap distances varying between 5 and 20 mm. It was observed that there exists a critical field (corresponding to the sphere diameter of 20 mm) at which the breakdown voltage is a maximum over the entire range of pressures investigated. This phenomenon is similar to the corona stabilization effect and could be due to presence of negative ion space charge.

Item Type: Journal Article Copyright belongs to IEEE Division of Electrical Sciences > High Voltage Engineering (merged with EE) 28 Mar 2008 19 Sep 2010 04:43 http://eprints.iisc.ernet.in/id/eprint/13526