Title:
離散ウェーブレット変換の詳細係数と近似係数を利用したアーク検出
Document Type and Number:
Japanese Patent JP5513870
Kind Code:
B2
Abstract:
An apparatus for facilitating interruption of current in an electrical circuit is provided and includes a current sensing device (10) in the electrical circuit to service an electrical load, the current sensing device (10) being productive of an output signal representative of a load current passing therethrough, a detection unit (30), in signal communication with the current sensing device (10) such that the output signal is received by the detection unit (30), the detection unit (30) being configured and disposed to output a secondary signal based on the output signal, and a microcontroller (80) to receive and to decompose the secondary signal into detailed and approximate coefficients, and to generate a trip signal for use in interrupting an operation of the electrical circuit when a current of the sensed load is above a predetermined threshold and the detailed and approximate coefficients cooperatively indicate that threshold conditions for trip signal generation are satisfied.
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Inventors:
Scott Jeffrey Hall
John Kenneth Hooker
Konstantin Bradymar Grigoryan
Sri Ram Changri
John Kenneth Hooker
Konstantin Bradymar Grigoryan
Sri Ram Changri
Application Number:
JP2009287011A
Publication Date:
June 04, 2014
Filing Date:
December 18, 2009
Export Citation:
Assignee:
GENERAL ELECTRIC COMPANY
International Classes:
H02H3/08; G01R31/02; H01H33/26; H01H83/02; H02H3/16
Domestic Patent References:
| JP2008166277A | ||||
| JP2001242085A | ||||
| JP2002221074A | ||||
| JP2007524092A |
Attorney, Agent or Firm:
Arakawa Satoshi
Hirokazu Ogura
Toshihisa Kurokawa
Hirokazu Ogura
Toshihisa Kurokawa