Time-Coordinated Switching Relay for Arc Discharge Suppression(Relays and Switches, <Special Section>IS-EMD2004-Recent Development of Electro-Mechanical Devices)

概要

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We propose a new electric contact device for arc discharge suppression. The functions of conventional electric contacts are categorized into energizing switch contacts and transient current switch contacts. A capacitor is connected in series to a transient current switch. Suppression of power consumption and arc discharge at breaking contacts are proposed, experimentally measured, and theoretically analyzed. The transient V-I characteristics at breaking contacts are controlled by the transient current switch and the capacitor. The transient responses at contacts were numerically derived by SPICE, and the energizing switch contacts voltage could be controlled to less than the minimum arc voltage. Using 2 conventional relays, no arc ignition at breaking contacts was confirmed for 50 V/25 A.
社団法人電子情報通信学会の論文
2005-08-01