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Characteristics Analysis and Design of a Novel Magnetic Contactor for a 220 V/85 A

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4 Author(s)
Hyeon-Jeong Bak ; Sch. of Electr. Eng., Seoul Nat. Univ., Seoul, South Korea ; Jong-Suk Ro ; Tae-Kyung Chung ; Hyun-Kyo Jung

Due to the continuous energy consumption in a closing coil for the maintenance of a closed state, the conventional solenoid type MC has serious problems such as inefficient energy consumption, welding in contacts, vibration, and noise. To address these problems, an advanced MC using a permanent magnet, an inter-locking system, and a guiding structure is proposed and named the MCPIG (magnetic contactor using permanent magnet, inter-locking system, and guiding structure) in this paper. Analysis method and design strategy are proposed for the MCPIG in this research. Through examining the experimental data of a prototype, the practicality of the proposed analysis and design method as well as the usefulness of the MCPIG for 220 V 85 AF MC are verified.

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Magnetics, IEEE Transactions on  (Volume:49 ,  Issue: 11 )