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Title:
感震保護システム及びそれを備えた分電盤
Document Type and Number:
Japanese Patent JP6715481
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To securely intercept power supply to a load after occurrence of an earthquake.SOLUTION: A signal processing section 10 outputs an interception signal S1 to a leak current driving section 13 when an earthquake sensing section 11 senses an earthquake. The leak current driving section 13, when receiving input of the interception signal S1, short-circuits an electric wire L21 and electric wire L11 to make a state in which leak current flows. In the case that an off-detection section 15 detects a trunk breaker 2 being in an off-state after the output of the interception signal S1 and, then, a power supply detection section 12 detects resumption of power supply, the signal processing section 10 does not output an interception signal S1 to the leak current driving section 13. In the case that the off-detection section 15 does not detect the trunk breaker 2 being in an off-state after the output of the interception signal S1 and, then, the power supply detection section 12 detects stop of power supply, the signal processing section 10 outputs the interception signal S1 to the leak current driving section 13 when the power supply detection section 12 detects resumption of power supply.SELECTED DRAWING: Figure 1

Inventors:
Hiroshi Matsuda
Koichi Yamazoe
Haruhiko Tatsumi
Application Number:
JP2016175003A
Publication Date:
July 01, 2020
Filing Date:
September 07, 2016
Export Citation:
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Assignee:
Panasonic IP Management Co., Ltd.
International Classes:
H02B1/40; H02H5/00
Domestic Patent References:
JP2006313728A
JP9147728A
JP9233623A
JP9215178A
JP9298831A
Attorney, Agent or Firm:
Patent business corporation Hokuto patent office
Keisei Nishikawa
Takeshi Sakaguchi
Hidetoshi Kitade
Nakaishi Haruki