1
Mario M Bilac, John J Dougherty, Indrajit Purkayastha, William J Premerlani: Circuit breaker and protective relay unit. General Electric Company, Richard A Menelly, Walter C Bernkopf, Fred Jacob, June 9, 1987: US04672501 (220 worldwide citation)

Circuit protection and protective relay functions are provided by common circuit elements under the control of a single processor unit. Voltage and current values are obtained on a continuous basis and these values are continuously monitored within the processor to determine the electrical status of ...


2
David G Hart, William L Peterson, David Uy, W Michael Egolf: Method and system for monitoring and controlling an electrical distribution network. ABB Power T&D Company, Woodcock Washburn Kurtz Mackiewicz & Norris, December 21, 1999: US06005759 (208 worldwide citation)

A system for monitoring and controlling an electrical distribution network comprises an electrical distribution substation having a local area network (LAN), a feeder subsystem and a gateway. The feeder subsystem is coupled to the substation and receives electrical energy therefrom for distribution ...


3
Cary D Talbot, Sheldon B Moberg, James D Causey III, Jay A Yonemoto: Selective potting for controlled failure and electronic devices employing the same. Medtronic MiniMed, Foley & Lardner, October 5, 2004: US06801420 (183 worldwide citation)

A selectively protected electrical system includes or operates with a power source, a load, a power driver circuit for controllably transferring power from the power source to the load, the power driver circuit being encapsulated in a potting material, and a controller for enabling and disabling the ...


4
George Auther Spencer, LeRoy Blanton, Robert Henry Clunn: Communication terminal for electrical power line distribution system. Zlan, Gregory M Howison, Stephen S Mosher, December 21, 1999: US06005758 (182 worldwide citation)

A communication terminal (10) is coupled to and operable in a power line network with at least one of plurality of intelligent circuit breakers (40) wherein each such circuit breaker (40) has a communication port. The terminal (10) includes a housing and connection means (12, 14) for connecting the ...


5
John J Shea, Robert N Parry: System for eliminating arcing faults and power distribution system employing the same. Eaton Corporation, Martin J Moran, December 5, 2006: US07145757 (174 worldwide citation)

A shorting system, which eliminates persistent arcing faults in power distribution equipment, includes a first shorting switch having separable contacts, an actuation input and a fuse electrically connected in series with those contacts. A second shorting switch includes an actuation input and separ ...


6
Robert D Holley: Self-powered communications link for smart circuit breakers. The Boeing Company, McNees Wallace & Nurick, August 4, 2009: US07570470 (154 worldwide citation)

A circuit breaker communication system is provided including a circuit breaker, an electronic module to record and store data associated with the operation of the circuit breaker, and a portable communication unit for downloading the stored data. The portable communication unit includes a power sour ...


7
Nicholas L DiSalvo: Reset lockout for circuit interrupting device. Leviton Manufacturing Co, Paul J Sutton, March 21, 2000: US06040967 (149 worldwide citation)

Resettable circuit interrupting devices, such as GFCI devices, that include a reset lock-out mechanism are provided. The reset lock-out mechanism prevents the resetting of electrical connections between input and output conductors if the circuit interrupting mechanism used to break the connection is ...


8
Kevin R Mengelt, Michael J Cane, Mark L Schultz: Backup power system and method. Best Power Technology Incorporated, Foley & Lardner, November 26, 1996: US05579197 (147 worldwide citation)

A backup power system has power supply lines extending from input terminals, connectable to a main AC power system, and output terminals, connectable to a load, with a relay connected in a power supply line. The AC input power is monitored and when a fault in the power is detected, the relay is open ...


9
Nicholas L DiSalvo, William R Ziegler: Circuit interrupting device with reverse wiring protection. Leviton Manufacturing Company, Paul J Sutton, June 12, 2001: US06246558 (135 worldwide citation)

Resettable circuit interrupting devices, such as GFCI devices, that include reverse wiring protection, and optionally an independent trip portions and/or a reset lockout portion are provided. The reverse wiring protection operates at both the line and load sides of the device so that in the event li ...


10
Redjem Bouhenguel, James P Garitty: Methods and systems for automatic testing of a relay. ABB Power T&D Company, Woodcock Washburn Kurtz Mackiewicz & Norris, April 21, 1998: US05742513 (126 worldwide citation)

A system and method for automatically testing the operation of a protective relay system is disclosed. The system and method provide for continuous testing to ensure proper operation of the protective relay system while the relay remains in service and without interrupting the normal operation of th ...