Electricity: electrical systems and devices – Safety and protection of systems and devices – Ground fault protection
Patent
1984-10-17
1987-05-05
Pellinen, A. D.
Electricity: electrical systems and devices
Safety and protection of systems and devices
Ground fault protection
361 46, H02H 326
Patent
active
046636900
ABSTRACT:
The electronics of a residual differential device is powered by several sources derived from the electrical system (14, 16, 18). A supply anomaly detector (36) signals the failure of one of the supply sources caused, for example, by a break in one of the wires (14, 16, 18). The anomaly detector signals the break in this wire and sends a tripping order to the protection circuit breaker (10). Voltage in the phase conductors is monitored, and an alarm device is energized, for example, if one of the phase conductors is open.
REFERENCES:
patent: 3001100 (1961-09-01), Schuh et al.
patent: 3585452 (1971-06-01), Goodwin
patent: 3786311 (1974-01-01), Hobson, Jr. et al.
patent: 3999087 (1976-12-01), Compton
patent: 4068276 (1978-01-01), Pintell
patent: 4507713 (1985-03-01), Hsieh
patent: 4513339 (1985-04-01), Ishigami et al.
patent: 4530027 (1985-07-01), Berger
patent: 4542433 (1985-09-01), Schaefer et al.
patent: 4574324 (1986-03-01), Packard
"One-Shot Serving as Missing Pulse Detector Spots Loss of AC Line Voltage Quickly"-Kraengel, Electronic Design, 5/79.
Bonniau Michel
Paupert Marc
Merlin Gerin
Pellinen A. D.
Wysocki A. Jonathan
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