| 摘要 |
PROBLEM TO BE SOLVED: To prevent lowering of conductivity, caused by the break of a contact at an electrode face that is perforated by arc discharge generated as the result of a current interruption, in case of rapid switching of high current. SOLUTION: In a method and system for maintaining a liquid metal switch, in a condition of being ready for switching at once, the liquid switch has a bulk liquid metal included in a cavity in a switch main body. A signal path through the cavity can be formed or cut off as the bulk liquid metal in the cavity is moved, by applying a voltage to an actuator responding to a switching signal. For maintaining switchable condition, a signal generator supplies a vibrational signal to the actuator. Thus, the bulk liquid metal can become movable, even if electric power is lowered so that the bulk liquid metal vibrates. COPYRIGHT: (C)2005,JPO&NCIPI
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