Title:
SEISMOSCOPIC RELAY DEVICE
Document Type and Number:
Japanese Patent JP2020092541
Kind Code:
A
Abstract:
To provide a seismoscopic relay device capable of being installed without interrupting a primary side of an earth leakage breaker.SOLUTION: The seismoscopic relay device includes: a seismoscopic sensor 14 for detecting an earthquake; a pseudo leakage current generation unit 15; and a control unit 20 for generating a pseudo leakage current from the pseudo leakage current generation unit 15 and performing an interruption operation of an earth leakage breaker 3 when seismoscopic intensity detected by the seismoscopic sensor 14 is greater than or equal to a predetermined value. The seismoscopic relay device further includes: an N terminal 12 connected to a neutral pole N of a single-phase three-wire electric path; an L terminal 11 connected to one of two voltage electrodes L1, L2; an E terminal 13 connected to a ground electrode E; and a display unit 17 for notifying that the N terminal 12 and the L terminal 11 are reversely connected if such a case occurs. The pseudo leakage current is output from the E terminal 13.SELECTED DRAWING: Figure 1
Inventors:
OSHIMA MASATOSHI
HIRAI TAKASHI
HIRAI TAKASHI
Application Number:
JP2018229277A
Publication Date:
June 11, 2020
Filing Date:
December 06, 2018
Export Citation:
Assignee:
KAWAMURA ELECTRIC INC
International Classes:
H02B1/40; H01H83/20
Domestic Patent References:
| JP2015153485A | 2015-08-24 | |||
| JPH09147728A | 1997-06-06 |
Attorney, Agent or Firm:
Yoshiki Ishida