Abstract
The inhibited discharge is a discharge in which the input of energy into the discharge channel is limited by the presence of a large series resistance in the external circuit supplying the discharge current. One situation in which such a discharge occurs is in outdoor high-voltage insulation systems when the system is subjected to rain. The inhibiting resistance is caused by layers or runnels of water on the insulator's surface. This paper concentrates upon the numerical modelling of the inhibited discharge. The core of the modelling is the interaction between the discharge itself and the external circuit which supplies the discharge current. Physical models of the corona streamer development, the propagation of the streamer-leader system and the final jump were used for the calculation of the discharge current. The calculations show that propagation of the streamer is not influenced by a large series resistance, whereas the propagation of the streamer-leader system and the final jump may be significantly inhibited.
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