Ray K Clark

Author:

Ray Clark Clark

ISBN #:

0538846771

Author:

Ray Clark Clark

ISBN #:

0538868538

Author:

Ray Clark

ISBN #:

0920678629

US Patent:

7292422, Nov 6, 2007

Filed:

Nov 29, 2004

Appl. No.:

10/999152

Inventors:

John Louis Culligan - Woodstock GA, US
Ray Montgomery Clark - Snellville GA, US

Assignee:

Siemens Energy & Automation, Inc. - Alpharetta GA

International Classification:

H02H 9/02

US Classification:

361 932, 361 5, 361 62

Abstract:

A method and occupancy-based control device in a trip unit of a main circuit breaker, with the circuit breaker coupled to an electrical distribution system including at least one feeder circuit breaker and a load circuit. The occupancy-based control device comprises an input device associated with the electrical distribution system and coupled to the trip unit. A selector is coupled to the trip unit and configured to select a first set of parameters and a second set of parameters, with each set of parameters defining a mode of operation of the trip unit. A means for selecting one of the first set of parameters and a second set of parameters in response to a signal from the input device is provided wherein, the trip unit operates based on the selected set of parameters.

US Patent:

8355230, Jan 15, 2013

Filed:

Dec 7, 2004

Appl. No.:

11/006144

Inventors:

John Louis Culligan - Woodstock GA, US
Ray Montgomery Clark - Snellville GA, US

Assignee:

Siemens Industry, Inc. - Alpharetta GA

International Classification:

H02H 3/08

US Classification:

361 936

Abstract:

Certain exemplary embodiments can comprise an apparatus comprising: a current transformer adapted to provide a signal correlated to an amperage of an alternating current of a first phase of an electric circuit, the alternating current flowing through a circuit breaker; and a microprocessor adapted to receive the signal from said current transformer, and to cause the circuit breaker to trip responsive to the signal exceeding a predetermined threshold.