Research on Open-Circuit Fault Protection and Positioning Isolation of Constant Current Remote Supply System in Cabled Underwater Information Network

Fault protection measures and interval positioning isolation methods are proposed for open-circuit faults of the constant current remote supply system, in order to realize the efficient and reliable operation of cabled underwater information network. Achieving the protection of the power conversion module in the trunk node by researching the protection circuit, and based on the controllable electrical switching type switch in the main node of the trunk, the system fault isolation circuit was designed and a new method of open-circuit fault location isolation was proposed. The research content has reference significance for the design and construction of cabled network underwater information network in the future.