Patent ID: 8755160
Filing Date: 2014-06-17
Classification: H02H

Abstract:
1. An electrical power distribution system for an aircraft, comprising: a power source electrically connected to an electrical load and at least one circuit interruption device for interrupting current in the power distribution system; and a distinguishing device connected to the system for distinguishing a transient electrical event in the system from a steady-state level of electrical activity in the system, wherein the transient electrical event induces a potential difference across all or part of the distinguishing device, the circuit interruption device being operable to interrupt current flowing through the power distribution system if the potential difference across the distinguishing device exceeds a threshold voltage, wherein the distinguishing device comprises at least one resistor connected in series to at least one capacitor, and at least one inductor or diode connected in series with the at least one resistor and capacitor, wherein the distinguishing device is connected in parallel with the power source and the load, and voltage is measured across points on either side of the at least one resistor.