Real-Time Fault Location Using the Retardation Method

A new method for short-circuit fault location is proposed. The based on instantaneous signal measurement and its first second derivatives, which are the novel elements of current approach. derivatives allow associating a precise time stamp to occurrence fault. Due retardation phenomena, difference between times in registered two detectors can be used locate We offer several mathematical models describe Although description faults terms lumped circuit useful elucidating methods detecting fault, this will not suffice propagation; hence, distributed needed, given telegraph equations. Those equations were derive transmission line transfer function, an exact analytical propagating was obtained. solution verified both by numerical simulations experimentally.