An apparatus and method for detecting the loss of a current transformer connection coupling a current differential relay to an element of a power system

Details for Australian Patent Application No. 2006218736 (hide)

Owner Schweitzer Engineering Laboratories, Inc.

Inventors Fischer, Normann; Guzman-Casillas, Armando

Agent Freehills

Pub. Number AU-B-2006218736

PCT Pub. Number WO2006/093926

Priority 11/070,077 02.03.05 US

Filing date 27 February 2006

Wipo publication date 8 September 2006

Acceptance publication date 29 April 2010

International Classifications

H02H 7/04 (2006.01) Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions - for transformers

Event Publications

16 August 2007 PCT application entered the National Phase

  PCT publication WO2006/093926 Priority application(s): WO2006/093926

29 April 2010 Application Accepted

  Published as AU-B-2006218736

26 August 2010 Standard Patent Sealed

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