判定システム

Japanese Patent JP7270485

B2

To detect an electrical instrument farthest from a branch breaker.SOLUTION: A determination system includes: a determination device 100 that connects to connection lines 11 to 13 connected to a branch breaker 300; switchgears 400, 400a and 400b that connect to connection lines 14 to 16 connected to a plurality of electric instruments. The opening/closing devices 400, 400a, and 400b are the devices that puts terminals of two lines included in the connection line an own device connects to of the connection lines 14 to 16 into an open state or short-circuit state. The determination device 100 is configured to: apply a voltage to the connection lines 11 to 16, perform control in order for each of the switchgears 400, 400a and 400b to shift the terminal into the short-circuit state at a different time with respect to the switchgears 400, 400a and 400b; measure a plurality of resistance values between the determination device 100 and each of the opening/closing devices 400, 400a and 400b when the switchgear is in the short-circuit state; and determine the electric instrument farthest from the branch breaker 300.SELECTED DRAWING: Figure 2

Kosuke Yamada
Toshiyasu Hikuma
Nobuaki Tasaki

JP2019122845A

May 10, 2023

July 01, 2019

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Mitsubishi Electric Corporation
Mitsubishi Electric Building Solutions Co., Ltd.

G01R31/00; G01N27/04; G01R27/02; G01R31/11; G01R31/50; H02J13/00

JP20179548A
JP2017181251A
JP201690565A
JP2018146233A
JP2019128215A
JP201941384A
JP2016156723A

US7808249

Yoichi Yamagata
Masaru Sato
Masahiko Shinohara
Maeda Minoru

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