Electricity: electrical systems and devices – Safety and protection of systems and devices – With specific voltage responsive fault sensor
Patent
1981-03-02
1983-01-11
Salce, Patrick R.
Electricity: electrical systems and devices
Safety and protection of systems and devices
With specific voltage responsive fault sensor
361 89, 340662, 340663, H02H 320, H02H 324
Patent
active
043684998
ABSTRACT:
A circuit apparatus including a circuit interrupter connected between an AC supply and electrical equipment to be protected and operational in a first condition to transmit power therebetween and operational in a second condition to interrupt power transmission therebetween, a control circuit for producing the first condition in response to normal supply voltage and for producing said second condition in response to abnormal supply voltage, a delay circuit connected to the control circuit and adapted to produce a minimum time delay between successive occurrences of the first condition, an overvoltage circuit adapted to produce the second condition in response to a voltage from the supply that exceeds a predetermined maximum level, and an undervoltage circuit adapted to produce the second condition in response to a voltage from the supply that is below a given threshold level.
REFERENCES:
patent: 3535591 (1970-10-01), Holmquest
patent: 3657603 (1972-04-01), Adams
patent: 3663958 (1972-05-01), Crane
Electronic Specialists, Inc.
Salce Patrick R.
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