| 摘要 |
PROBLEM TO BE SOLVED: To provide an abnormality diagnosis method where the abnormality of an electromagnetic coil in an electromagnetic field generator installed in a continuous casting machine can be diagnosed before the reduction in the insulation of the electromagnetic coil and interphase short circuit are generated. SOLUTION: Regarding the abnormality diagnosis method in an electromagnetic field generator, when an electromagnetic field with a prescribed intensity is applied from an electromagnetic coil in an electromagnetic field generator 10 installed in a continuous casting machine, and a molten steel 7 is continuously cast, the electric power fed to the electromagnetic coil is measured, and, based on the time series change of the measured fed electric power, the abnormality of the electromagnetic coil is diagnosed. COPYRIGHT: (C)2009,JPO&INPIT
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