Accession Number : ADD010694

Title :   Ground Fault Detector and Shutdown System.

Descriptive Note : Patent,


Personal Author(s) : Tucker,L W ; Nelson,F E

Report Date : 18 Oct 1983

Pagination or Media Count : 6

Abstract : A ground fault detection and shutoff system for underwater power transmission provides protection to divers from swimming into electric fields. This system uses DC power to monitor the true resistance of the load system rather than the AC power to the load. The system comprises DC power supply, ground fault monitor, circuit breaker and isolation transformer which monitors the system's DC resistance to ground and shuts off the power system if the resistance falls below a preset value. (Author)

Descriptors :   *Patents, *Monitors, *Detectors, *Safety equipment, *Shutdowns, *Power distribution, Divers, Underwater equipment, Alternating current, Direct current, Transformers, Electrical resistance, Electric fields, Ground level, Swimming, Protection, Resistance, Isolation, Underwater, Value, Detection, Faults, Power, Transmittance

Subject Categories : Electric Power Production and Distribution
      Marine Engineering
      Safety Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE