| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To aim at miniaturization of a vacuum switchgear equipped with a plurality of switches housed in a vacuum vessel and an operating unit for operating each switch, suited for use as power-receiving and distributing equipment of an electric power system. <P>SOLUTION: A breaker 18 inside a U-phase vacuum vessel 10 is coupled with the operating unit 22 through an operating rod 24 and a driving rod 78, a breaker 18 inside a V-phase vacuum vessel 12 is coupled with the operating unit 22 through an operating rod 24 and a driving rod 78, and a W-phase breaker 18 is coupled with an operating unit 22 through an operating rod 24 and a driving rod 78. At the time of an input operation by each operating unit 22, electromagnetic force generated from an electromagnet 74 is given the driving rod 78 as well as the operating rod 24 to input each breaker 18, and at release operation of each operating unit 22, elastic force stored in a pull-out spring 80 is given the driving rod 78 and the operating rod 24 to release each breaker 18, and at the same time, an operating force generated from each phase is transmitted to the other two phases through a link mechanism 26, so that the operating units 22 of all the three phases are inputted or released in the block. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
