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Patent Searching and Data


Title:
GROUNDING CIRCUIT, ELECTRICAL APPARATUS, GROUNDING CONTROL METHOD, AND GROUNDING CONTROL PROGRAM
Document Type and Number:
WIPO Patent Application WO/2019/031415
Kind Code:
A1
Abstract:
[Problem] To provide a fail-safe function for an operation of grounding a circuit to be grounded and for an operation of ungrounding a grounded circuit. [Solution] The present invention is provided with: a first contact in a first relay connected to a grounded circuit; a resistor which is connected between the first contact and the earth, and which inhibits the flow of electric current to the first contact when the first contact is closed; a second contact in a second relay connected in parallel to the resistor; and an interlocking control means which inhibits opening of the first contact in a closed state when the second contact is opened, and which inhibits closing of the first contact in an open state when the second contact is closed.

Inventors:
YAMAGUCHI Shohei (7-1 Shiba 5-chome, Minato-k, Tokyo 01, 〒1088001, JP)
Application Number:
JP2018/029275
Publication Date:
February 14, 2019
Filing Date:
August 03, 2018
Export Citation:
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Assignee:
NEC CORPORATION (7-1 Shiba 5-chome, Minato-ku Tokyo, 01, 〒1088001, JP)
International Classes:
H01H47/00
Foreign References:
JP2000341818A2000-12-08
JPH06104799A1994-04-15
Attorney, Agent or Firm:
SHIMOSAKA Naoki (7-1 Shiba 5-chome, Minato-k, Tokyo 01, 〒1088001, JP)
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