| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a method for executing discharge inspection for remaining charge of a coil of an electric power apparatus by using a power supply that generates a voltage which is lower than heretofore. SOLUTION: This device comprises a coil 20 fro generating magnetic fluxes in which the number of turns is smaller than that of a coil to be inspected and the impedance is lower than that of coil to be inspected, a sample coil 22 in which a structure per one layer is the same as that of that coil to be inspected and the number of layers is smaller than that of the coil to be inspected and a power supply device 26 for the inspection having a capacitor 28 which is charged by a DC power supply 27. The sample coil 22 is disposed concentrically in an inner side of the coil 20 for generating magnetic fluxes and both of the coils are connected with each other in series. Electric charge accumulated in the capacitor of the power supply device 26 is discharged through the series circuit of the sample coil 22 and coil 20 for generating magnetic fluxes, then the electromagnetic force that acts on the coil to be inspected when the remaining charge of the system is discharged is inspected.</p> |
