Electricity: electrical systems and devices – Safety and protection of systems and devices – With specific current responsive fault sensor
Patent
1980-04-23
1983-07-12
Eisenzopf, Reinhard J.
Electricity: electrical systems and devices
Safety and protection of systems and devices
With specific current responsive fault sensor
361 93, H02H 902
Patent
active
043934315
ABSTRACT:
An overcurrent relay circuit has a power supply developed from a test signal representative of the current in the line being monitored. The power supply is a Zener diode and capacitor arrangement connected in series with the load or test resistor. A variable time-current characteristic circuit (or timing plug) is based upon a variable effective capacitance circuit in which the timing capacitor and resistor currents are isolated from, but dependent upon, one another.
REFERENCES:
patent: 3100854 (1963-08-01), Riebs
patent: 3167686 (1965-01-01), Riebs
patent: 3295017 (1966-12-01), Riebs et al.
patent: 3302070 (1967-01-01), Burley
patent: 3398328 (1968-08-01), Piekarski
patent: 3465208 (1969-09-01), Patrickson et al.
patent: 3489955 (1970-01-01), Freeborn
patent: 3496417 (1970-02-01), Tenenbaum
patent: 3539838 (1970-11-01), Moses
patent: 3600610 (1971-08-01), Kelsch et al.
patent: 3624425 (1971-11-01), Blumenstein
patent: 3671814 (1972-06-01), Dick
patent: 3697813 (1972-10-01), Fox
patent: 3702425 (1972-11-01), Hoffmann et al.
patent: 3723818 (1973-03-01), Zocholl
patent: 3809962 (1974-05-01), Brown et al.
patent: 3836790 (1974-09-01), Becker
patent: 3836821 (1974-09-01), Wahlgren et al.
patent: 3839668 (1974-10-01), Black
patent: 4131929 (1978-12-01), Moran
Eisenzopf Reinhard J.
Gealow Jon Carl
Gilroy Hugh M.
McGraw-Edison Company
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