Earth leakage detection method

Details for Australian Patent Application No. 2008320176 (hide)

Owner Daikin Industries, Ltd.

Inventors Hashimoto, Hitoshi; Doumae, Hiroshi

Agent FB Rice

Pub. Number AU-B-2008320176

PCT Pub. Number WO2009/057387

Priority 2007-281146 30.10.07 JP

Filing date 9 September 2008

Wipo publication date 7 May 2009

Acceptance publication date 6 October 2011

International Classifications

H02H 7/00 (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

F24H 1/00 (2006.01) Water heaters having heat generating means, e.g. boiler, flow-heater, water-storage heater

G01R 31/02 (2006.01) Arrangements for testing electric properties - Testing of electric apparatus, lines, or components for short-circuits, discontinuities, leakage, or incorrect line connection

H02H 3/16 (2006.01) 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 fault current to earth, frame or mass

H02H 3/347 (2006.01) Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection

Event Publications

6 May 2010 PCT application entered the National Phase

  PCT publication WO2009/057387 Priority application(s): WO2009/057387

6 October 2011 Application Accepted

  Published as AU-B-2008320176

2 February 2012 Standard Patent Sealed

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