Title:
FLOATING MELTING APPARATUS
Document Type and Number:
Japanese Patent JP3305530
Kind Code:
B2
Abstract:
PURPOSE: To simplify the apparatus by eliminating a magnetic shielding plate between an upper exciting coil and a lower exciting coil.
CONSTITUTION: Power is supplied from a voltage type inverter 50 to a serial resonance circuit having an upper exciting coil 1 and a capacitor 8, power is supplied from a current type inverter 60 to a parallel resonance circuit having a lower exciting coil 2 and a capacitor 9, and the output frequency of the inverter 50 is set to higher output frequency than that of the inverter 60. Thus, the capacitor 8 becomes higher impedance with respect to the output frequency of the inverter 60, the capacitor 9 becomes lower impedance with respect to the output frequency of the inverter 50, and hence a magnetic shielding plate can be eliminated.
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Inventors:
Katsuaki Nagamatsu
Tatsuo Take
Mitsuru Fujita
Hideaki Tadano
Tatsuo Take
Mitsuru Fujita
Hideaki Tadano
Application Number:
JP6020995A
Publication Date:
July 22, 2002
Filing Date:
March 20, 1995
Export Citation:
Assignee:
Chubu Electric Power Co., Inc.
Fuji Electric Co., Ltd.
Fuji Electric Co., Ltd.
International Classes:
H05B6/32; F27B14/04; (IPC1-7): F27B14/04; H05B6/32
Attorney, Agent or Firm:
Masaharu Shinobe
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