Abstract
The present disclosure describes a system and method for implementing safety redundancy in high-voltage direct current power distribution units using a master-slave relay configuration. By placing a master relay at the input of a power distribution unit, ahead of secondary relays and protective fuses, the system can independently isolate a single damaged unit without requiring a total system shutdown. The master relay typically remains in a closed state during normal operation and is commanded to open only when a fault, such as contact welding, is detected in the secondary relay. This approach mitigates the risks associated with inrush currents and overcurrent events in high-power environments.
Keywords: Direct current (DC), power distribution unit (PDU), master relay, secondary relay, safety redundancy, relay welding, circuit isolation, high-voltage power.
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Recommended Citation
N/A, "Redundant Relay Configuration for Safety and Isolation in High-Voltage Power Distribution Systems", Technical Disclosure Commons, (April 01, 2026)
https://www.tdcommons.org/dpubs_series/9697