Title:
SEISMOSCOPIC INTERCEPTION SYSTEM
Document Type and Number:
Japanese Patent JP2018042438
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To make it possible, even when an earthquake occurs in a state in which power is supplied by a distributed power supply at the time of occurrence of outage, to take measures against the earthquake using a single seismoscopic relay and to prevent a secondary disaster even when a commercial power supply returns after that.SOLUTION: A seismoscopic interception system comprises: a trunk breaker 1 having the primary side to which a commercial power supply is connected; a plurality of branch breakers 2 connected to the secondary side of the trunk breaker 1; a seismoscopic relay 3 for sensing occurrence of an earthquake; and an automatic changeover switch 4 that, responsive to occurrence of outage, changes over a power supply of a specific circuit S connected to the secondary side of the trunk breaker 1 to a storage battery unit 10 provided separately. The seismoscopic relay 3, when sensing an earthquake having seismic intensity equal to or higher than specific seismic intensity, immediately transmits an earthquake detection signal to the automatic changeover switch 4. The automatic changeover switch 4, responsive to outage of the commercial power supply, changes over the power supply of the specific circuit S from the commercial power supply to the storage battery system 10; and, when an earthquake detection signal is received in this state, changes over the power supply of the specific circuit S from the storage battery system 10 to the secondary side of the trunk breaker 1.SELECTED DRAWING: Figure 1
Inventors:
KONISHI KOJI
Application Number:
JP2016176873A
Publication Date:
March 15, 2018
Filing Date:
September 09, 2016
Export Citation:
Assignee:
KAWAMURA ELECTRIC INC
International Classes:
H02H5/00; H02B1/42
Attorney, Agent or Firm:
Yoshiki Ishida