Patent ID: 11879948
Assignee: SANYO ELECTRIC CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  B  H | IPC G

Claim 5:
6. The electrical fault detection device according to claim 1, wherein
the first switch is composed of a first relay,
the second switch is composed of a second relay,
the second determination unit determines whether or not welding of the first relay based on the potential or the potential difference measured by the second voltage measurement unit in a state where an OFF signal is supplied to the first relay and an ON signal is supplied to the second relay with the load in a stopped state, and
the second determination unit determines whether or not welding of the second relay based on the potential or the potential difference measured by the second voltage measurement unit in a state where the ON signal is supplied to the first relay and the OFF signal is supplied to the second relay with the load in a stopped state.