A computer model of the impulse noise produced by operation of breakers and switches in power electric system

This paper presents a computer model for simulating the impulse noise produced by the operation of circuit breakers and isolator switches in HV electric power systems. The simulator utilizes a recorded sample of the impulse noise as a kernel sequence. The kernel sequence is measured and recorded at the point of connection of the telecommunication equipment to the coaxial cable. The simulator produces the sequence composed of the low-level background noise, and of the train of short-time high-level noise impulses of random amplitudes, which are evenly distributed in time. At the output, the simulator is supplied with the bandpass digital filter with variable bandwidth and variable central frequency. The purpose of the filter is to simulate the impulse noise over the bandwidth of the desired telecommunication channel.