Patent ID: 11923670
Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G  Y | IPC G  H

Claim 3:
4. The arc detection device according to claim 1, wherein
the first wiring includes a plurality of first branched paths each connecting one of the plurality of devices and a branch point of the first wiring between the positive electrode of the direct-current power supply and each of the plurality of devices,
the second wiring includes a plurality of second branched paths each connecting one of the plurality of devices and a branch point of the second wiring between the negative electrode of the direct-current power supply and each of the plurality of devices, and
the electric current detector includes a magnetic core through which paths each being a corresponding one of the first branched path and the second branched path that is different for each of the plurality of devices extend, and the electric current detector detects the electric current flowing through the low-impedance circuit by detecting, for each of the plurality of devices, the electric current flowing in the corresponding one of the first branched path and the second branched path according to a magnetic field produced at the magnetic core.