FIELD: electricity.
SUBSTANCE: invention relates to electrical engineering. The non-contact power supply device in a non-contact way charges the battery vehicle (28), it is fitted with the power transmission coil (12) located at the road surface, and the power reception coil (22) located in a vehicle. The foreign object detection coil (13) is provisioned on the top surface of the power transmission coil (12), and on the basis of the voltage induced in the foreign object detection coil (13) during test voltage supply the foreign objects between the power transmission coil (12) and the power reception coil (22) are detected.
EFFECT: improvement of efficiency.
10 cl, 13 dwg
