What is the Electrical Distribution Logic (EDL)?

What is the Electrical Distribution Logic (EDL)?

• A. A 2-channel computer that controls the electrical system by opening and closing contactors
• B. A hydraulic device for power distribution
• C. A manual switch controlling bus supply
• D. A programmable logic controller for inverter frequency

Answer: (A)

Electrical Distribution Logic is a two-channel computer that controls the aircraft’s electrical distribution by opening and closing contactors. It acts as the coordinated brain for power distribution, monitoring bus voltages and faults, managing bus-tie operations, sequencing during power-up and power-down, and performing load shedding to keep essential systems powered. The redundancy of two channels provides fault tolerance so one channel can back up the other. This isn’t a hydraulic device, nor a manual switch, and it isn’t a general programmable logic controller meant for inverter frequency. The EDL’s purpose is specifically to autonomously manage the distribution of electrical power by commanding the contactors based on sensing and safety logic.

Electrical Distribution Logic is a two-channel computer that controls the aircraft’s electrical distribution by opening and closing contactors. It acts as the coordinated brain for power distribution, monitoring bus voltages and faults, managing bus-tie operations, sequencing during power-up and power-down, and performing load shedding to keep essential systems powered. The redundancy of two channels provides fault tolerance so one channel can back up the other.

This isn’t a hydraulic device, nor a manual switch, and it isn’t a general programmable logic controller meant for inverter frequency. The EDL’s purpose is specifically to autonomously manage the distribution of electrical power by commanding the contactors based on sensing and safety logic.