These transients are short lived and oscillatory in nature. However, they are extremely important as the electrical equipment is subjected to its greatest stresses during this period. When the two electrical contacts separate, an arc is created in the interrupter that maintains current flow.

What is the significance of transient analysis?

Transient analysis allows you to extract the decay constant and the natural resonance frequency from a graph of current or voltage in the time domain. The same idea applies any linear time invariant circuit driven with an arbitrary waveform. These driving sources do not need to be periodic in time.

What are the effect of transient?

Each pulse produces two transients, an oscillation resulting from the sudden rise in voltage and another oscillation from the sudden drop in voltage. This is generally considered an undesirable effect as it introduces variations in the high and low voltages of a signal, causing instability.