Determining electrical faults on undergrounded power systems using directional element

Details for Australian Patent Application No. 2002337980 (hide)

Owner SCHWEITZER ENGINEERING LABORATORIES, INC.

Inventors Roberts, Jeffrey B

Agent Freehills

Pub. Number AU-A-2002337980

PCT Number PCT/US02/34059

PCT Pub. Number WO2003/036312

Priority 09/999,837 24.10.01 US

Filing date 23 October 2002

Wipo publication date 6 May 2003

International Classifications

G01R 031/00 Arrangements for testing electric properties

H02H 003/24 Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection - responsive to undervoltage or no-voltage

Event Publications

20 February 2003 Complete Application Filed

  Priority application(s): 09/999,837 24.10.01 US

3 July 2003 Application Open to Public Inspection

  Published as AU-A-2002337980

22 May 2008 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(d). Examination has been requested or an examination report has issued for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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