Aspects regarding controlled switching of the vacuum circuit breaker

The paper describes how different parameters from vacuum circuit breaker influence the closing and opening time. Operational voltage, ambient temperature or hydraulic pressure can introduce delays in opening and closing the circuit breaker. These parameters are motorized through sensors that send all the data to a control unit. The control unit calculates the decision/(time) when to make controlled switching. This paper presents a study case that demonstrates how one of the parameter introduces delays in the opening or closing processes of the circuit breaker.