Title:
アーク発生検知装置および開閉器
Document Type and Number:
Japanese Patent JP6423115
Kind Code:
B2
Abstract:
An arc generation detector and a switch, the arc generation detector being capable of detecting arc generation at an electrical connection portion such as a terminal belonging to a power supply line and having a relatively simple configuration, and reducing the size. An arc light detection unit (91) detects arc light emitted when an arc is generated at the electric connection portion such as a terminal provided to an electric device. A determination unit (92) determines whether the arc light detection unit (91) has detected arc light. A signal output unit (93) outputs an arc generation detection signal to the outside in a case in which the determination unit (92) determines that the arc light detection unit (91) has detected arc light. The arc generation detection signal is inputted to a drive circuit (64) of a trip coil (65) in a switch (82). The drive circuit (64) drives the trip coil (65) in accordance with the input of the arc generation detection signal, and moves and opens moving contacts (42, 44) disposed between power supply-side terminals (21, 22) and load-side terminals (23, 24) in the switch (82).
Inventors:
Maeda Tadashi
Application Number:
JP2018001981A
Publication Date:
November 14, 2018
Filing Date:
January 10, 2018
Export Citation:
Assignee:
Asahi East Holdings Co., Ltd.
International Classes:
H01H9/50; H01H33/26; H01H73/06; H01H83/02; H01H83/20
Domestic Patent References:
| JP2012134002A | ||||
| JP10106686A | ||||
| JP2006134579A | ||||
| JP11038072A | ||||
| JP2012060877A | ||||
| JP62291822A |
Attorney, Agent or Firm:
Toyoake Fukui