Electricity: electrical systems and devices – Safety and protection of systems and devices – Circuit automatically reconnected only after the fault is...
Patent
1988-09-16
1989-08-01
Jennings, Derek S.
Electricity: electrical systems and devices
Safety and protection of systems and devices
Circuit automatically reconnected only after the fault is...
361 71, 361 75, 361 93, 361101, 364483, H02H 308
Patent
active
048538205
ABSTRACT:
Electronic circuit breakers safeguard a load connected to a power supply against damage from overload conditions. These circuit breakers interrupt flow of overload currents to the load by instantaneously reducing flow of such current from the power supply to the load to a harmless residual current when that electric current flow exceeds a predetermined value. These breakers also avoid downtime after cessation of such a condition by electronically monitoring that residual current to determine when it is safe to restore electric operating current flow to the load. Flow of electric operating current from the power supply to the electronic equipment is restored in response to the latter determination. Preferably, the monitored residual current is used for automatically switching the electronic circuit breaker and the flow of electric operating current electronically back on, when the electronic monitoring has determined that the overload condition has ceased to exist.
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Ham, Jr. Howard M.
Keenan James J.
Hendry Mechanical Works
Jennings Derek S.
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