Electricity: electrical systems and devices – Safety and protection of systems and devices – Ground fault protection
Patent
1982-03-22
1983-10-18
Moose, Jr., Harry E.
Electricity: electrical systems and devices
Safety and protection of systems and devices
Ground fault protection
361 49, H02H 316
Patent
active
044109253
ABSTRACT:
A ground fault detection and shutoff system for underwater power transmisn 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.
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Nelson Floyd E.
Tucker Leroy W.
Beers Robert F.
Moose Jr. Harry E.
St. Amand Joseph M.
The United States of America as represented by the Secretary of
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