08-02-2016, 04:40 PM
ABSTRACT
Over the years, as our knowledge of the interrupting process progressed, many techniques have been developed to test the circuit breakers and simulated arc model There are three models (Physical Model Black Box Model and Parameter Model) that describe the behavior of f arc. This paper evaluates the black-box arc model for circuitbreakers with the purpose of finding criteria for the breaking ability. A black-box model is a model that requires no knowledge from the user of the underlying physical processes. In this paper, knowledge of the physical processes is required when evaluating and developing the arc models. This paper is meant to give a detailed study of black box model with the purpose to evaluate, combine, improve and apply to already existing circuit-breakers. Cassie-Mayr arc models was evaluated. Cassie’s model gives good results for large currents, while Mayr’s model is better for currents near zero. Therefore, a combination of the Cassie and Mayr model will be used to obtain better result.