An apparatus, system, and method for detecting high impedance faults in
electrical power lines using a composite high impedance fault detection
system having a voter logic that samples the logical outputs from a
plurality of independent high impedance detection systems and determines
a high impedance fault if any two of the plurality of independent high
impedance detection systems indicates a high impedance fault. Preferably,
the plurality of high impedance detection systems include a wavelet based
high impedance fault detection system having a first logical output, a
higher order statistics based high impedance fault detection system
having a second logical output, and a neural net based high impedance
fault detection system having a third logical output. Preferably, each of
the plurality of high impedance fault detection systems includes an
independent high impedance fault detection application that independently
detects a high impedance fault on the electrical power line.