Jim R Ramsey

US Patent:

8319136, Nov 27, 2012

Filed:

Jun 29, 2010

Appl. No.:

12/825414

Inventors:

Eldridge R. Byron - Murfreesboro TN, US
Gary W. Scott - Mount Vernon IA, US
Carlton Rodrigues - Mount Juliet TN, US
Jim Ramsey - Murfreesboro TN, US
Philippe Picot - Grenoble, FR

Assignee:

Schneider Electric USA, Inc. - Palatine IL

International Classification:

H01H 33/66

US Classification:

218126

Abstract:

A high-speed arc terminator for an electrical power distribution system includes a sealed, evacuated housing, and a controllable mechanical switch having first and second electrically conductive contacts enclosed within the housing and adapted to be coupled to the power distribution system outside the housing. A trigger conductor extends into the housing and has an exposed end near the gap between the contacts when the contacts are in the open position. At least one of the contacts is movable between an open position in which the contacts are separated by a gap, and a closed position in which the contacts engage each other, and an operating mechanism is provided for moving the at least one contact between the open and closed positions. A high voltage source is controllably coupled to the trigger conductor for supplying a high-voltage pulse to the trigger conductor in response to the detection of an arcing fault. The high-voltage pulse produces an arc within the gap between the contacts, to shunt fault current from the power distribution system across the gap, from one of the contacts to the other, before the contacts engage each other.

US Patent:

7819681, Oct 26, 2010

Filed:

Jun 19, 2009

Appl. No.:

12/488328

Inventors:

Carlton R. Rodrigues - Mt. Juliet TN, US
Edgar Avalos Ortiz - Murfreesboro TN, US
Glenn S. O'Nan - Oxford OH, US
Jim Ramsey - Murfreesboro TN, US
Thomas Reed, Jr. - Seneca SC, US

International Classification:

H01R 4/60

US Classification:

439213, 174 88 B

Abstract:

A busway joint pack includes a pair of opposing phase connector plates, a first insulating sheet, a second insulating sheet, a first side panel, and a second side panel. The busway joint pack passively transfers thermal energy generated in its core to an exterior housing such that the thermal energy is dissipated or transferred to the surrounding environment, which reduces the internal temperature of the joint pack. The first and the second insulating sheets are positioned and selected with a particular thermal resistance and dimensions such that a portion of the thermal energy generated in the core of the busway joint pack is transferred from the pair of opposing phase connector plates to the external housing.