Electricity: electrical systems and devices – Safety and protection of systems and devices – With specific voltage responsive fault sensor
Patent
1990-05-02
1992-10-06
Evans, Geoffrey S.
Electricity: electrical systems and devices
Safety and protection of systems and devices
With specific voltage responsive fault sensor
34082516, 361 42, 364482, 364483, H02H 326, G08C 2500
Patent
active
051538083
ABSTRACT:
The protected network consists of a signal bus provided with terminal impedances and connected via impedances to the supply voltage (+VIN) and signal ground (GND), and signal devices which are connected to the bus. To protect the network, the voltages on the bus are monitored, and the bus impedance is measured by means of a test pulse. If either the measured voltages, impedance, or both are outside an allowed range, at least the supply voltage (+VIN) of the signal devices is disconnected.
REFERENCES:
patent: 3947759 (1976-03-01), Briggs
patent: 4197435 (1980-04-01), Jackson et al.
patent: 4206398 (1980-06-01), Janning
patent: 4298969 (1981-11-01), Rickenbacker
patent: 4352137 (1982-09-01), Johns
patent: 4410925 (1983-10-01), Tucker et al.
patent: 4562401 (1985-12-01), Ziegler
patent: 4636909 (1987-01-01), Brandt
patent: 4656471 (1987-04-01), Hanss et al.
patent: 4707760 (1987-11-01), Allos
patent: 4796147 (1989-01-01), Anderson et al.
patent: 4949211 (1990-08-01), Edwards
Juntunen Asko
Leppanen Heikki
Selin Kimmo
Evans Geoffrey S.
Kone Elevator GmbH
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