Patent ID: 9373980
Filing Date: 2016-06-21
CPC Classification: H02H,H02J,Y02B,Y02E,Y04S

Claim Text:
1. A power protection and distribution assembly comprising an arc flash protection system configured to control a trip system to conditionally trip an upstream circuit breaker to isolate a power distribution bus or one of its component parts from a power source, wherein the arc flash protection system comprises: a status circuit configured to generate a light status signal indicating whether or not light characteristic of an arc event is detected; a full-duplex signaling module comprising a transmitter in series with a receiver between a pair of conductors, wherein the pair of conductors couples the arc flash protection system to the trip system, wherein the receiver is configured to receive a current status signal from the trip system by demodulating the magnitude of a current through the pair of conductors, the current status signal indicating whether or not current characteristic of an arc event is detected by the trip system; and a controller configured to generate, based on the light status signal and the current status signal, a control signal for controlling the trip system; wherein the transmitter of the full-duplex signaling module is configured to send the control signal to the trip system by distinctively modulating the magnitude of a voltage across the pair of conductors.