Invention Grant
- Patent Title: Electric leakage protection device and feed control device
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Application No.: US15501537Application Date: 2015-02-26
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Publication No.: US10367346B2Publication Date: 2019-07-30
- Inventor: Naoki Fukuo , Koji Yamato , Hideki Kawahara
- Applicant: Panasonic Intellectual Property Management Co., Ltd.
- Applicant Address: JP Osaka
- Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Current Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Current Assignee Address: JP Osaka
- Agency: McDermott Will & Emery LLP
- Priority: JP2014-161726 20140807
- International Application: PCT/JP2015/000974 WO 20150226
- International Announcement: WO2016/021088 WO 20160211
- Main IPC: H02H1/00
- IPC: H02H1/00 ; H01H83/02 ; H02H3/16 ; H02H3/33 ; H02H3/32 ; H02H3/04

Abstract:
The electric leakage protection device (feed control device includes an electric leakage detector, an electric leakage protector, and a self leakage generator. The electric leakage detector outputs an electric leakage detection signal when a current leaked from a main circuit exceeds a threshold value. The electric leakage protector opens a contact device interposed in the main circuit when receiving the electric leakage detection signal. The self leakage generator includes; a first short circuit having a first electric resistance component and a first switch component electrically connected in series with each other, and a second short circuit having a second electric resistance component and a second switch component electrically connected in series with each other. The first short circuit and the second short circuit are electrically connected in parallel with each other with regard to a pair of power supply paths constituting the main circuit.
Public/Granted literature
- US20170222424A1 ELECTRIC LEAKAGE PROTECTION DEVICE AND FEED CONTROL DEVICE Public/Granted day:2017-08-03
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