Title:
INSULATION RESISTANCE MONITORING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/097312
Kind Code:
A1
Abstract:
A voltage source (E1) applies a prescribed voltage between two nodes which are insulated from one another and constitute part of a measurement target. A current measurement device (41) measures the leakage current (Ioc) of a capacitive component between the two nodes of the measurement target. A switch (SW) opens and closes a circuit between the measurement target and the voltage source (E1). A controller (43) determines whether or not the switch (SW) is operating normally on the basis of the measured capacitive component leakage current (Ioc).
Inventors:
YAMAGUCHI SHOHEI (JP)
OZAKI MASAHIRO (JP)
TAKATANI RYOHEI (JP)
OZAKI MASAHIRO (JP)
TAKATANI RYOHEI (JP)
Application Number:
PCT/JP2021/009904
Publication Date:
May 12, 2022
Filing Date:
March 11, 2021
Export Citation:
Assignee:
OMRON TATEISI ELECTRONICS CO (JP)
International Classes:
G01R31/34; G01R31/52; G01R31/56
Domestic Patent References:
| WO2019146232A1 | 2019-08-01 |
Foreign References:
| JP2017090257A | 2017-05-25 | |||
| JP2020148736A | 2020-09-17 | |||
| JP2020106517A | 2020-07-09 | |||
| JP2018189557A | 2018-11-29 | |||
| JP2016161354A | 2016-09-05 | |||
| JPH0755869A | 1995-03-03 | |||
| US20190383870A1 | 2019-12-19 | |||
| JP2020148736A | 2020-09-17 |
Attorney, Agent or Firm:
YAMAO, Norihito et al. (JP)
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