Title:
アーク検出装置およびアーク検出方法
Document Type and Number:
Japanese Patent JP6464799
Kind Code:
B2
Abstract:
An arc is detected easily. An arc detector (12) includes a current sensor (31), a power spectrum conversion unit (41) that converts an output from the current sensor (31) to a power spectrum, a section value obtaining unit (42) that divides an arc measurement section for the power spectrum into a plurality of regions, and obtains, from region values for the plurality of regions excluding a maximum one of the region values, a region value to be a section value of the arc measurement section, and an arc determination unit (43) that determines a presence of an arc by comparing the section value with a threshold.
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Inventors:
Tomita fairness
Toru Fujii
Reiko Hattori
Takeshi Soda
Toru Fujii
Reiko Hattori
Takeshi Soda
Application Number:
JP2015029790A
Publication Date:
February 06, 2019
Filing Date:
February 18, 2015
Export Citation:
Assignee:
OMRON Corporation
International Classes:
G01R31/02; G01R31/00; H02S50/00
Domestic Patent References:
| JP2014134445A | ||||
| JP4147066A |
Foreign References:
| US20120316804 |
Attorney, Agent or Firm:
Nao Murakami