Electrical over/under voltage automatic disconnect apparatus...

Details Electrical over/under voltage automatic disconnect apparatus... Electrical over/under voltage automatic disconnect apparatus...

2007-08-28

2007-08-28

Sircus, Brian (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific voltage responsive fault sensor

C361S092000, C361S090000

Reexamination Certificate

active

10251240

ABSTRACT:
An analog or digital circuit that senses both low and high input voltage and operates to disconnect both line and neutral electrical power connections to a protected device when abnormally low or high voltages are received from a single- or multi-phase power source, and reconnects the protected device when input power has stabilized. The sensing circuit and power supply is functional with voltages up to at least 240 Vac. The nominal 120 Vac circuit is designed to withstand a 6 kilovolt surge without damage. The apparatus does not disconnect the ground line during an out-of-tolerance voltage condition.

REFERENCES:
patent: 3878436 (1975-04-01), Bogel
patent: 4068276 (1978-01-01), Pintell
patent: 4375660 (1983-03-01), Tate et al.
patent: 5173831 (1992-12-01), Sammartano
patent: 6040778 (2000-03-01), Hopkins et al.
patent: 6301133 (2001-10-01), Cuadra et al.
patent: 6525914 (2003-02-01), Legatti
patent: 6816350 (2004-11-01), Hoopes
patent: 7099130 (2006-08-01), Angle et al.

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