Investigation on circuit breaker influence on transient recovery voltage

As Hammarlund stated in (1946), transient recovery voltage (TRV) investigation can never be finished completely, as the progress of circuit breaker construction and network design goes on. The most common approach to TRV investigation is concerning the so called prospective TRV, in which an assumption of neglecting interaction between circuit breaker itself and the inherent system recovery voltage is being made. However, it still seems to be worthy to investigate how circuit breaker affects TRV. In presented paper such an influence is being investigated in some detail, with use of black- box Habedank circuit breaker model (U. Habedank, 1993), in exemplary MV large industrial network (Z. Ciok et al., 1996). The influence of reactance of inductive fault current limiter as well as distance to fault in short line fault condition on rate of rise of recovery voltage has been investigated. The investigation has been made by means of simulation performed using Matlab/Simulink programme.